26. EXHIBIT XXVI - ATR42-500 AIP.pdf

ATR42 AIP Page 1 Revision 2 Dated 08/04/2022

AVIATION OPERATIONS CENTER

AIRCRAFT

INSPECTION PROGRAM

AEROSPATIALE/ALENIA

ATR42-500

Serial Number: MSN-549

Revision 2 Dated: 08/04/2022

Manual #: 1

Assigned to: _

Aviation Operations Center 2300 Horizon Dr.

Fort Worth, Texas 76177

Exhibit ????

ATR42-500 Inspection Program

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1.1. Table of Contents

ATR42-500

Manual #: 1

1.1. Table of Contents

1.2. List of Effective Pages

1.3. Record of Revisions

2. General

2.1. Introduction

2.2. Duties and Responsibilities

2.3. Revision Control

2.4. Program Applicability

2.5. Adding New Aircraft

2.6. Terms, Definitions and Abbreviations

3. ATR42 Maintenance and Inspection Program

3.1. Program Description

3.2. ATR42-500 Inspection Program Procedures

3.2.1. Low Utilization Recommendations

3.3. Basic Program Intervals:

3.3.1. Threshold and Repeat Intervals

3.4. Line Check

3.5. Weekly Check

3.6. Inspection Standards

3.7. Technical Data

3.8. Instructions for Performing Inspections

3.9. Return to Service

3.10. Airworthiness Directives

3.11. Unscheduled Maintenance Checks

3.12. Electrical Wiring Interconnect System (EWIS)

3.13. Aircraft Storage

3.14. Life Limited Parts

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3.15. Critical Design Configuration Control Limitations

3.16. Corrosion Prevention and Control Plan

3.17. Emergency Equipment Checks

3.18. 14CFR / National Requirements

3.18.1. 30 Day VOR Check

3.19. Major Repairs, Modifications and Alterations

3.20. Engine Inspection Program

3.20.1. Unscheduled Engine Inspections

3.21. Propeller Inspection Program

3.21.1. Major Inspection

3.21.2. Critical Parts Inspections

3.21.3. Unscheduled inspections

4. Appendix A ATR42 Series Weekly Inspection Checklist

5. Appendix B: Cargo Combination Inspection Checklist

6. Appendix C: Inspection Listing

7. Appendix D: ICAs

7.1. Snow Man Hole 337 dated 08/10/2016 with Technical Documents Drawing # JAM-SUM-001 Rev IR dated 07/26/2016 12 month snow man hole inspection

7.2. Capsat Antenna Doubler 337 dated 10/12/2011 FAA 8110-3 Doc # STRUDYNE-L3COM-ATR42- 500-SN549-

01 SR-L42ATR10001 REVA,10/12/2011

7.3. Concord Main Battery STC ST03930AT DWG# 05-171, Rev Q, Dated 12/04/2018

7.4. Concord Emergency Battery STC st03930at DWG# 5-0171, Rev Q, Dated 12/04/2018

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1.2. List of Effective Pages

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1.3. Record of Revisions

Revision 2 – 08/04/2022

Revision Instructions / Highlights

(I) Insert: (R) Replace: (D) Discard Page Reason

(I) All Pages Initial Release

(R) 1, 4-8, 34-240 Revision 1

(R) 1-240; (I) 241-258 Revision 2

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2. General

2.1. Introduction

This Aircraft Inspection Program has been established by the Aviation Operations Center (AOC) to meet the requirements of 14CFR §91.409(e), by selection of an inspection program in accordance with 14 CFR

§91.409(f) (4) and developed in accordance with 14 CFR §91.409(g), for use on ATR42-500 series aircraft operated under 14CFR part §91.501(b) (5). This program will be used by the Director of Maintenance, Contracted Maintenance Organizations, Maintenance Technicians, and others designated by the Director of Maintenance for performing scheduled inspections, and unscheduled inspections as required by adverse operational conditions. This inspection program provides for a means to ensure compliance with

Federal Regulations and to ensure continued airworthiness. All inspections under this program will be updated when completed by the DOM or their designee and tracked at the Aviation Operations Center.

Upon approval of this manual by the FAA, the Aviation Operations Center will identify the use of this manual in the maintenance records in accordance with 14CFR §91.409(f).

2.2. Duties and Responsibilities

• The Director of Maintenance (DOM) Christopher L. Cooper, is responsible for administering and revising the AIP as detailed in subsequent paragraphs and sections.

• Contracted Maintenance Technicians and Non-Certified Repair Organizations must reference applicable sections of the AIP prior to performing any inspection and assure compliance with all applicable sections prior to approving the aircraft for return to service.

• Contracted FAA Certified Repair Stations must reference applicable sections of the AIP prior to performing any inspection and assure compliance with all applicable sections prior to approving the aircraft for return to service. They shall also utilize the repair station’s work order and quality control system in accordance with the repair station’s procedures and quality control manuals.

2.3. Revision Control

Each copy of the program in manual (paper) form will be assigned and designated with a control number.

A master list containing the manual control number, location, and to whom the manual is assigned will be kept on file in the Technical Publications Library.

Electronic copies shall be maintained on company servers in un-editable formats. Upon approval by the

FSDO, the Director of Maintenance will scan the approved LEP’s and insert them into the electronic version.

All revisions will be submitted to the North Texas FSDO for approval.

It is the responsibility of the Director or Maintenance to ensure current revision.

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Revisions to this manual will be identified by RED text.

In accordance with 14CFR §91.415 the Aviation Operations Center will revise this program when required.

The electronic manual is a read-only file which is not editable. If pages from the manual are printed, they are for reference only and must be verified for currency prior to use.

Hard copies of the manual shall be issued to the Aviation Operations Center, Cognizant FAA FSDO and

Director of Maintenance. All hard copy manuals shall be given a control number to denote the responsible manual holder. The Quality Manager or designee shall ensure all manuals are updated when revisions are approved.

Table 1: Aviation Operations Center ATR42 MIP Distribution List

Manual Number: Issued to:

1 Director of Maintenance

2 FAA FSDO (North Texas)

3 Aircraft

Revisions will be sent for approval to:

North Texas FSDO

8700 Freeport Parkway

Suite 225

Irving, TX 75063

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2.4. Program Applicability

This inspection program has been developed by the Aviation Operations Center as an Aircraft Inspection

Program under 14CFR 91.409(f) (4).

This program is applicable to the following aircraft:

Table 2: Aircraft Applicability List

Manufacturer Model Serial Number Registration Number

AEROSPATIALE/ALENIA ATR42-500 MSN-549 N366FM

2.5. Adding New Aircraft

When the decision is made to acquire additional aircraft, the Aviation Operations Center will ensure that all appropriate steps are accomplished. These steps include:

• Evaluate aircraft configuration to determine compatibility with this Aircraft Inspection Program

(if configuration is incompatible, an individual AIP shall be developed)

• Perform a review current aircraft time, cycles and configuration (including major repairs and changes to type design).

• Review the current aircrafts inspection program for comparison to the ATR42 MRBR.

• Verify each component, inspection (hourly calendar and cycle based) and maintenance task for its last compliance and entered into Aviation Operations Center tracking system.

• Determine what inspections, maintenance, modifications and steps are required to “bridge” the aircraft to the approved AIP.

• Enter aircraft in section 2.3, and incorporate additional required changes of this manual and submit to the Flight Standards District office for approval.

2.6. Terms, Definitions and Abbreviations

Airworthy:

A. The aircraft must conform to its type design. Conformity to the type design is considered attained when the aircraft configuration and the engine, propeller, and articles installed are consistent with the drawings, specifications, and other data that are part of the TC. This includes any supplemental type certificate (STC) and repairs and alterations incorporated into the aircraft.

B. The aircraft must be in a condition for safe operation. This refers to the condition of the aircraft relative to wear and deterioration, for example, skin corrosion, window delamination/crazing, fluid leaks, and tire wear.

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Terms, Definitions, and Abbreviations (Continued)

Calendar Month: The period of time from the first day of a month to the last day of the month. Unless otherwise specified, compliance with requirements due by Calendar Months can be achieved at any time during the month, up to and including the last day of the month.

Cycle: The period of time from commencing the operation of a component for the purpose of flight until the cessation of operations.

Flight Hours: The elapsed time in operation from when an aircraft or component leaves the earth’s surface to the time it subsequently comes to a landing.

Functional Check: A test to check the function, calibration and accuracy of a system or component as installed in the aircraft which may require the use of specialized test equipment.

Landings: Total number of aircraft landings.

Maintenance: Means inspections, overhaul, repair, preservation and the replacement of parts, but exclude preventative maintenance.

Month: The time from any day from one calendar month to the corresponding day of the next calendar month. Compliance with requirements due Monthly or expressed in Days must be achieved by the specified date due.

Operational Check: A test to determine whether a system or component is functioning properly in all aspects, conforming to minimum acceptable manufacture design specifications.

Product: Aircraft, Engine, Propeller

Organization: Aviation Operations Center.

Visual Check: An inspection using acceptable methods, techniques, and practices to determine physical condition and security of equipment and components.

AIP: Aircraft Inspection Program AMM: Aircraft Maintenance Manual AOC: Aviation Operations Center AOH: Aviation Operations Handbook AWL: Airworthiness Limitation

CMR: Certification Maintenance Requirement DOM: Director of Maintenance and authorized designee, as applicable.

DOO: Director of Operations.

DVI: Detailed Visual Inspection FAA: Federal Aviation Administration

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Terms, Definitions, and Abbreviations (Continued)

FAR: Title 14 Code of Federal Regulations FSDO: Flight Standards District Office (FAA North Texas FSDO).

GVI: General Visual Inspection JIC: Job Instruction Card LLC: Life Limited Component LUR: Low Utilization Recommendations MIP: Maintenance and Inspection Program MP: Maintenance Procedure MPD: Maintenance Planning Document MRBR: Maintenance Review Board Report Product: Aircraft, Aircraft Engine, Propeller SB: Service Bulletin

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3. ATR42 Maintenance and Inspection Program

3.1. Program Description

This AIP has been developed based on the maintenance/inspection requirements as outlined in the following documents. This program ensures the continued airworthiness of the aircraft.

This Inspection program utilizes the Manufacturers recommendations located in the following manuals.

The Aviation Operations Center will maintain current subscriptions with the Manufacturers to ensure manual currency.

• ATR42-500 Maintenance Review Board Report (FAA Approved)

• ATR42-500 Time Limits Document (FAA Approved)

• ATR42-500 Low Utilization Recommendations

• ATR42-500 Maintenance Planning Document

• Pratt & Whitney Canada PW127 Maintenance Manual Airworthiness Limitations (FAA Approved)

• Hamilton Sundstrand Propeller Maintenance Manual Airworthiness Limitations (FAA Approved)

• Product Type Certificate Data Sheets

• Major Repair and Alteration Instructions for Continued Airworthiness

• 14CFR Requirements

The inspection tasks and repeat intervals specified in the ATR42-500 MRB Report and MPD together with the Time Limits document (Airworthiness Limitations - AWL/ Certification Maintenance Requirements -

CMR), constitute the maintenance instructions that the Manufacturers consider necessary to provide for the continued airworthiness of the airplane.

The Inspection program includes the following inspection systems:

• System Program provides specific tasks for each Maintenance Significant Item (MSI) of aircraft and powerplant systems.

• Structure Program defines the directed inspections for each Structural Significant item (SSI) developed through evaluation of their fatigue, environmental and accidental damage characteristics

• Zonal Program comprises of General Visual Inspections (GVI) of system installations and structure by aircraft zone.

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3.2. ATR42-500 Inspection Program Procedures

The Inspection program for the ATR42 aircraft is based on the System/Powerplant, Structural and Zonal task intervals as defined in the ATR42 MRBR current revision. Adherence to the inspection frequencies specified in the MRBR and LUR is mandatory and cannot be adjusted without approval from the FAA FSDO.

Early compliance or short term escalations to specific maintenance task of the lesser of 10%, 200 Flight

Hour (HR/FH), 100 Landings (FL) or 6 months (MO) may be allowed on a case-by-case basis. Early compliance or short-term escalation greater than these values must be approved by the FSDO. No escalation of AD, CMR, AWL and/or LLC compliance requirements will be allowed.

All inspections are based on flight hours, landing cycles or calendar time (or a combination thereof).

Where two intervals are assigned to the same task, the interval expiring first shall apply.

3.2.1. Low Utilization Recommendations

Due to the utilization rates of the aircraft, the ATR42 Low Utilization Recommendations are followed.

These LUR are published in the Maintenance Planning Document.

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3.3. Basic Program Intervals:

CHECK Interval Definition/Remark

Line Check (LC) 2 Calendar Days Next due any time in day 3, if completed any time in day 1

Weekly (WY) 7 Calendar Days Next due any time in day 8, if completed any time in day 1

Hourly (HR) As specified See Flight Hour definition below

Flight (FL) As specified 1 complete take-off and landing sequence

Flight Hour (FH) As specified Elapsed time between wheel lift-off and touchdown

Cycles (CY) As specified 1 takeoff and 1 landing

Landings (LD) As specified 1 complete landing sequence

Life Limit (LL) As specified Maximum life limit of a part, component or assembly

A Check (multiples up to 4A) 500 Hours A=500 FH, 2A=1000 FH, etc.

C Check (multiples up to 4C) 5000 Hours C=5000 FH, 2C=10,000 FH, etc.

Yearly (YE multiples up to 12YE) 1 Year Calendar Year

Monthly (MO multiples up to

12MO)

1 Month Calendar Month

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3.3.1. Threshold and Repeat Intervals

Certain inspections in the ATR42-500 MRBR have a Threshold and Repeat Interval. The Threshold (T) sets the first accomplishment limit that must not be exceeded. The Repeat Interval (I) indicates the interval that the inspection must be repeated. The Sample (S) is designed for operators of multiple aircraft, and is not applicable to this program.

It is the responsibility of the DOM to ensure that the Repeat Interval (I) is tracked as next due once the

Threshold Interval (T) is reached.

3.4. Line Check

Line Checks must be completed each 2-calendar days and consist of the following inspections as outlined in the Maintenance Planning Document Section 12 (as revised). To comply with this MPD requirement these items will be completed each flight day as part of the pre-flight inspection performed by maintenance personnel. These inspections may be performed by the pilot certificated under 14CFR part

§61 in accordance with 14CFR part §43.3(g).

• 324000-01: Functional Check of Tire Pressure

• 324000-02: DVI of Tires for general condition and wear

• 324000-15 GVI of Nose and Main wheels for condition

• 290000-01: Check of hydraulic fluid level through sight glass

3.5. Weekly Check

Weekly checks must be completed every 7 days and consist of the following inspections as outlined in the

Maintenance Planning Document Section 12 (as revised). To comply with this MPD requirement these items will be completed at 7 calendar day intervals by maintenance personnel. See Appendix A for Weekly

Inspection Checklist.

• 720000-01: Engine Oil Level Check

• 281000-01: Drain water form fuel and surge tanks

• 243100-01: Check of Battery Voltage

• 324000-18: GVI of Nose and Main Wheels for Condition

• 324000-04: FUT of Bake Wear Indicators, Brakes for Leakage, Freedom of Brake Disks

• 720000-02: Continuity Check of Engine Turbomachine Chip Detector

• 720000-03: Continuity Check of Engine Reduction Gearbox Chip Detector

• 720000-05: Check of Main Oil Filter Impending Bypass Indicator

• 720000-04: Check of Scavenge Oil Filter Impending Bypass Indicator

• 612000-16: Check of Propeller Electronic Control Bite Advisory on Maintenance Panel

• 541201-01: Walkaround / Crack Insp of Engine Center and Rear Oil Cooler Flaps on Nacelle

• ZL-100-01-1: Walkaround Insp of Lower Fuselage and Radome (Inc Nose Wheel Well)

• ZL-200-01-1: Walkaround Insp of Visible Parts of Upper Fuselage and Top Fairings

• ZL-300-01-1: Walkaround Insp of Visible Parts of Tail Fuselage and Empennage

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• ZL-400-01-1: Walkaround Insp of Power Plant and Nacelles and Prop Blades

• ZL-500-01-1: GVI of LH Wing

• ZL-600-01-1: GVI of RH Wing

• ZL-700-01-1: Walkaround Insp of Main and Nose Landing Gear and Doors

• ZL-800-01-1: Walkaround Insp of Fuselage Doors

3.6. Inspection Standards

The Aviation Operations Center will ensure FAA Approved and acceptable standards, 14CFR §43.13(a) (b) and §43.15 are used to inspect and maintain the aircraft covered by this program.

Any current, appropriately rated technician with product (make/model) experience may perform the inspections in accordance with this program (ref 14CFR §65.81 and §65.83). Alternatively, any FAA

Certified Repair Station with the appropriate ratings may perform the inspections in accordance with this program.

3.7. Technical Data

It is the responsibility of the person performing the inspections in this program to determine that the required technical data is available and this data is current. The following data is required for any inspection conducted in accordance this program.

• Type Certificate Data Sheets

• Airworthiness Directives

• 14CFR part §91 and §43

• Applicable Airworthiness Limitations of the Product

• Manufacturers Manuals as Required

3.8. Instructions for Performing Inspections

To ensure inspection procedures are referenced, the Aviation Operations Center will utilize the task cards from the ATR42-500 Maintenance Manual Job Instruction Cards (JIC) or other applicable manual.

The Director of Maintenance is responsible for the forecasting and completion of inspections and component replacements. The DOM will utilize the Aviation Operations Center Tracking System to keep a current inspection status of the aircraft.

It is the responsibility of the DOM to maintain currency of aircraft flight hours and cycles for Aviation

Operations Tracking.

When a scheduled inspection is due on the aircraft (example “C Check”), the DOM will review the Tracking

System and the appropriate appendices of this AIP to identify all inspections within the due inspection interval (ex. C Check).

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All tasks will be entered in the inspection work order system. The persons performing the inspections shall refer to the technical publications provided by the manufacturer (Aircraft Maintenance Manual, Non-

Destructive Testing Manual, Job Instruction Card manual, etc.).

Discrepancies found during an inspection will be repaired at that time or may be deferred in accordance with the Master Minimum Equipment List (MMEL) (Reference 14CFR part 91 LOA). Discrepancies corrected during the inspection shall be documented with a logbook entry and a maintenance release provided in accordance part §43.9 and §43.11 or utilizing the maintenance organization’s work order/quality control system as applicable.

All inspections under this program will be updated when completed by the DOM and tracked at the

Aviation Operations Center.

3.9. Return to Service

In accordance with 14CFR §43.11, following the completion of an inspection performed under this AIP, the DOM will ensure an appropriately rated person or facility makes a log entry in the maintenance records returning the aircraft to service. This entry shall contain the following, at a minimum:

• Type of inspection performed (e.g. C check, Weekly Inspection, ICA inspection etc.)

• Total Time in Service, Total Landings and Date

• A statement to reference the Aviation Operations Centers ATR42-500 AIP and the

Manufacturers reference used (e.g. ATR42-500 MPD)

• Name, certificate number, kind of certificate and signature of the person approving the aircraft for return to service

3.10. Airworthiness Directives

The Federal Aviation Administration (FAA) publishes Airworthiness Directives (AD’s) that apply to specific airplanes, engines, propellers, and appliances. These AD’s are mandatory and must be complied with within the specified time limit contained therein.

A complete listing of all Airworthiness Directives will be maintained in the aircraft records, and a duplicate copy will be maintained at the Aviation Operations Center.

The Director of Maintenance is responsible for evaluation, implementation and compliance with all

Airworthiness Directives. The DOM will utilize the Aviation Operations Center Tracking System to keep a current status of pending and recurrent AD requirements. Recurring AD inspection requirements will be incorporated to the Inspection Listing in Appendix C, and submitted to the FSDO for approval.

Appendix C contains a complete listing of recurring AD requirements under this program.

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3.11. Unscheduled Maintenance Checks

Unscheduled Maintenance Checks are listed in AMM Chapter 05-51 of the ATR42 Maintenance Manual are integrated into the inspection program via specific instructions contained in the AMM procedures.

The AMM provides detailed instructions for the inspections. The Director of Maintenance is responsible to ensure the appropriate inspection is accomplished whenever any one of these events occur or is reported.

• DVI of parked aircraft after wind exceeded limitation

• Inspection of aircraft after exceeding aircraft limitations

• Inspection after hard landing and exceeding VLE, VLO

• Inspection after exceeding VLE, VLO

• Inspection after flight in turbulence and/or exceeding VMO/MMO

• Inspection after exceeding limit speed of VFE/VFO

• DVI after hail storm on ground

• DVI after hail storm during flight

• DVI after lightning strike

• DVI after a wing overpressure

• Inspection after leaving runway

• Visual Inspection after bird strike

• Inspection of engine after over torque

• Inspection of propeller after over torque

• Inspection after contamination by volcanic ash

• Inspection after mercury spill

• Inspection after emergency brake application (hot brake indication)

• Identification of In-Flight vibrations / noises

3.12. Electrical Wiring Interconnect System (EWIS)

The EWIS inspection program provides a means in which aircraft wiring and connectors can be inspected on a scheduled basis. The ATR42-500 EWIS applicable tasks have been approved from the Enhanced Zonal

Analysis Procedure (EZAP).

EWIS Tasks are identified by having (EWIS) following the task description in Appendix C.

The Purpose of the EWIS Inspection is to determine that the equipment and wiring are in correct condition. Incorrect conditions may be caused by:

• Incorrect Installation

• Damage and incorrect repairs of wiring and connectors.

• Contamination, including

• Dust, Lint and Dirt

• Metallic Shavings and Debris

ATR42 AIP Page 22 Revision 2 Dated 08/04/2022

• Moisture and corrosion

• Liquids such as Oils, Hyd Fluid, Waste Water etc.

EWIS task inspections are contained in the ATR42 Electrical Standard Practice Manual 20-52-00

When performing an inspection identified as EWIS in the MRBR/MPD the technician will refer to the following manual references:

• AMM 20-52-11: General Visual Inspection and Zonal Inspection for EWIS.

• AMM 20-52-12: Detailed Visual Inspection of EWIS Related Zone.

• AMM 20-52-13: Cleaning of EWIS related components.

• AMM 20-52-14: Ageing Inspections.

Appendix B contains a complete listing of Electrical Wiring Interconnect System (EWIS) requirements applicable to this program.

3.13. Aircraft Storage

Refer to ATR42 AMM 12-34 for storage recommendations.

3.14. Life Limited Parts

The Director of Maintenance will ensure that all life limited parts are tracked at the Aviation Operations

Center.

Life Limited parts will be discarded in accordance with the limits in the aircraft TCDS, ATR42-500 Time

Limits Document and Airworthiness Limitations section of the Aircraft, Propeller and Engine Manufacturer manuals, and 14CFR part §43.10. Replacement of life limited components / parts will be documented in accordance with 14CFR §43.9 and §91.417. No Airworthiness Limitations will be exceeded.

Life Limited parts identified in the documents referenced in 3.1 are listed in Appendix C.

3.15. Critical Design Configuration Control Limitations

Critical Design Configuration Control Limitations (CDCCL) are mandated by Special Federal Aviation

Regulation (SFAR) 88.

A CDCCL is a limitation requirement to preserve a critical ignition source prevention feature of the fuel system design that is necessary to prevent the occurrence of an unsafe condition identified by the SFAR

88 review. The purpose of the CDCCL is to provide instruction to retain the critical ignition source prevention feature during configuration change may be caused by alterations, repairs, or maintenance actions.

CDCCL tasks are identified by FUEL TANK SAFETY CRITICAL TASK in the MPD task description. Revision requests by the Aviation Operations Center to CDCCL tasks must be submitted to the FSDO, who may add

ATR42 AIP Page 23 Revision 2 Dated 08/04/2022 comments and then forward it to the manager of the FAA ACO having cognizance over the ATR42 type certificate.

Appendix C contains a complete listing of Critical Design Configuration Control Limitations applicable to this program.

3.16. Corrosion Prevention and Control Plan

The Aviation Operations Center will comply with the ATR42 Corrosion Prevention and Control Plan (CPCP)

Structure and Zonal tasks can be identified in the MRBR/MPD by a “YES” in the CPCP column of the task.

The following general instructions will be applied to CPCP tasks.

• Clean the area to be inspected.

• Ensure drains and drainage paths are clear

• Ensure insulations blankets are dry prior to re-installation

• Apply suitable water repellent and corrosion preventative products

Appendix C contains a complete listing of Corrosion Prevention and Control Plan requirements

3.17. Emergency Equipment Checks

All emergency equipment inspection requirements contained in this AIP are referenced from the ATR42

MRBR, manufacturer’s component maintenance manual or other technical instructions published by the equipment manufacturer.

Appendix C contains a complete listing of Emergency Equipment Checks applicable to this program.

3.18. 14CFR / National Requirements

Inspection tasks identified in the MRBR may be based on National (FAA) requirements. These are identified at “Note 2”.

Whenever the task has “Note 2”, the FAA (or applicable DOT) interval will be tracked at the Aviation

Operations Center. These inspections include

• Altimeter/Transponder/Static Systems Inspections (§91.411/413)

• Emergency Locator Transmitter Test and Battery Replace

• Cockpit Voice Recorder Check and ULD Battery

• Flight Data Recorder Transcription and ULD Battery

• Life Vests Inspection and Restore

• PBE Life Limit and Inspection

• Fixed and Portable Oxygen Cylinder Hydro Checks

• Engine and Portable Fire Bottle Hydro Checks

ATR42 AIP Page 24 Revision 2 Dated 08/04/2022

• Engine Fire Bottle Squibs

• Aircraft Weight and Balance Update

Appendix C contains a complete listing of 14CFR/ National Requirements applicable to this program.

3.18.1. 30 Day VOR Check

Each aircraft VOR radio navigation system must be operationally checked every 30 days for accuracy in accordance with FAR §91.171. This check may be performed by either maintenance or flight crew personnel, and annotated in the aircraft records as required in Aviation Operations Handbook 8.2.2.3.1, B.20.

3.19. Major Repairs, Modifications and Alterations

Major Repairs, Modifications and Alterations will be accomplished using FAA Approved data such as ATR42

Structural Repair Manual, Manufacturers repair specification, Supplemental Type Certificate (STC), FAA

Form 8110-3, or other FAA approved data.

Major Repairs, Modifications and Alterations will be recorded in the aircraft records in accordance with

14CFR §43 appendix C. Should any repair or alteration create a new inspection requirement, or Inspection for Continued Airworthiness (ICA) the Director of Maintenance shall incorporate these requirements for tracking at the Aviation Operations Center.

Major Repair, Modification and Alteration Inspection Requirements/ICAs contained in Appendix E shall be complied with as specified.

Appendix C contains a complete listing of Instructions for Continued Airworthiness (ICA) Requirements

3.20. Engine Inspection Program

The Engine Inspection Program will be accomplished in accordance with both the ATR42-500 MRBR recommendations for the “On Wing” inspection requirements and the “Hard Time” inspection tasks in accordance with the Pratt & Whitney Canada maintenance manual chapter 5.

All applicable engine inspections including fixed overhaul schedules and airworthiness limitations / life limited parts will be tracked by the Aviation Operations Center. The Director of Maintenance will ensure the required inspections are performed.

Appendix C contains a complete listing of Engine Inspection, Overhaul, Airworthiness Limitations and Life

Limited Parts Requirements applicable to this program.

3.20.1. Unscheduled Engine Inspections

An unscheduled inspection will be performed when the engine is subjected to one of the following operating conditions. Reference the Pratt &Whitney Canada Maintenance Manual for detailed instructions. The Director of Maintenance will ensure the required inspections are performed.

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• Performance Deterioration

• Over-speed in Excess of Transient

• Over-temperature

• Engine Over-torque Estimation

• Over-torque

• Immersion in Water

• Dropped Engine

• Heavy Landing Resulting in Landing Gear Damage or Aircraft Structural Damage

• Hard Material Ingestion

• Bird Strike and Soft Material Ingestion

• Chip Detector Circuit Completed

• Propeller Strike Causing Blade Structural Damage

• Propeller Strike Causing Minor Blade Damage

• Propeller Lightning Strike

• Heavy Landing

• Sustained Running at an Oil Temperature outside limits

• Tailpipe/Exhaust Duct Securing Bolt Failure

• Low Oil Pressure or Loss of Oil Pressure

• Main Oil Filter Impending Bypass Indicator Activated

• Reduction Gearbox Scavenge Oil Filter Impending Bypass Indicator Activated

• High Pressure Fuel Filter Impending Bypass Indicator Activated

• Low Pressure Fuel Filter Impending Bypass Indicator Activated

• Aircraft Flown Through a Cloud of Volcanic Ash

• Fuel in Oil System

• Oil Fire in Exhaust Duct

• Inter-compressor Case Fire Warning

• Engine Exposed to Fire Extinguishing Agent

• Engine Related Vibration and/or Cracked External Tubes

• Lack of Engine Preservation

• Ingestion of Hydraulic Fluid

• Hydraulic Fluid in the Oil System

3.21. Propeller Inspection Program

The Propeller Inspection Program will be accomplished in accordance with both the ATR42-500 MRBR recommendations and the Airworthiness Limitations Section of the Hamilton Sundstrand Propeller

Manual. This section is FAA Approved and specifies the maintenance required under 14CFR parts §43.16 and §91.403.

All applicable propeller inspections including fixed overhaul schedules and airworthiness limitations / life limited parts will be tracked by the Aviation Operations Center. The Director of Maintenance will ensure the required inspections are performed.

ATR42 AIP Page 26 Revision 2 Dated 08/04/2022

Appendix C contains a complete listing of Propeller Inspection, Overhaul, Airworthiness Limitations and

Life Limited Parts Requirements applicable to this program.

3.21.1. Major Inspection

Specific propeller components require Major Inspection and are defined in the applicable Hamilton

Sundstrand Propeller Manual. The Major Inspection intervals are listed as specified in 3.21, and will be tracked at the Aviation Operations Center.

3.21.2. Critical Parts Inspections

The components requiring a Critical Parts Inspection are identified in the Hamilton Sundstrand

Maintenance Manual Table AL-1. These component assemblies will be removed from service at the interval specified in table AL-1.

Critical parts are listed as specified in 3.21, and will be tracked at the Aviation Operations Center.

Compliance with the Critical Parts Inspection satisfies the requirement of AD96-25-20.

3.21.3. Unscheduled inspections

An Unscheduled inspection of the propeller and propeller components will be performed if the propeller is subjected to the following:

• Inspection after Over-speed

• Inspection after Impact

• Inspection after Lightning Strike

• Inspection after Over-torque

Reference the Hamilton Sundstrand Maintenance Manual for detailed instructions. The Director of

Maintenance will ensure the required inspections are performed.

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4. Appendix A ATR42 Series Weekly Inspection Checklist

Aircraft #: Total Aircraft Time:

Total Cycles: Date:

Page 1 of 3: Task: Mech Initial

1 Check flight log and MMEL for discrepancies and deferred items

Aircraft Exterior:

2 Inspect Radome and Forward Fuselage and External

3 Inspect Pitot Tubes and Static Ports (LH & RH) and Angle of Attack Probes

4 Inspect Flight Compartment Windows

5 Inspect Fuselage Lower Surface

6 Inspect Nose Gear Doors and Wheel Well

7 Inspect NLG including Struts, Actuators, Steering Mechanism

8 Inspect NLG Wheels, Tires and Check NLG Tire Pressure

9 Inspect Fuselage and Cabin Windows, Fuselage Doors and Emergency Exits

10 Inspect Upper Fuselage and Top Fairings

11 Inspect HYD Compartments for Hydraulic Quantity and Accumulator Pre-charge

12 Inspect HYD Compartments for Leaks and Accumulator Pre-Charge Pressure

13 Inspect Rear Fuselage and Tail cone including cone static strips (8)

14 Inspect Empennage, Vertical Stab and Rudder, Horizontal Stab and Elevators

15 Inspect Tail cone, Rudder and Elevator Static Wicks (14 ea.)

ATR42 AIP Page 29 Revision 2 Dated 08/04/2022

Page 2 of 3: Task: Mech

16 Inspect LH Main Landing Gear Doors and Wheel Well

17 Inspect LH MLG Assy, including Struts, Actuators and Free Fall Assistor

18 Inspect LH MLG Wheels, Tires and Tire Pressure

19 Check LH Break Wear Indicators and Inspect Brakes for Leaks and Disk Freedom

20 Inspect RH Main Landing Gear Doors and Wheel Well

21 Inspect RH MLG Assy, including Struts, Actuators and Free Fall Assistor

22 Inspect RH MLG Wheels, Tires and Tire Pressure

23 Check RH Break Wear Indicators and Inspect Brakes for Leaks and Disk Freedom

24 Inspect LH Wing including Flaps, Leading Edges, Deice Boots, and Static Wicks (5)

25 Inspect LH Wing Static Dischargers (5ea)

26 Drain Water From LH Wing Fuel Tanks and Surge Tank

27 Inspect RH Wing including Flaps, Leading Edges, Deice Boots, and Static Wicks (5)

28 Inspect RH Wing Static Dischargers (5ea)

29 Drain Water From RH Wing Fuel Tanks and Surge Tank

Engines and Propellers

30 Inspect LH Propeller for Leaks, Damage and Condition

31 Inspect LH Engine and Nacelle for Condition and Leaks

32 Check LH Engine Main and Scavenge Oil Filter Bypass Indicators

33 Perform Continuity Check of LH Engine RGB and Turbomachine Chip Detectors

ATR42 AIP Page 30 Revision 2 Dated 08/04/2022

Page 3 of 3: Task: Mech

34 Check and Service LH Engine Oil Quantity: Serviced Qts

35 Inspect RH Propeller for Leaks, Damage and Condition

36 Inspect RH Engine and Nacelle for Condition and Leaks

37 Check RH Engine Main and Scavenge Oil Filter Bypass Indicators

38 Perform Continuity Check of RH Engine RGB and Turbomachine Chip Detectors

39 Check and Service RH Engine Oil Quantity: Serviced Qts

Interior and Cockpit

40 Inspect Aft Baggage Compartment and Lavatory for Condition

41 Inspect Seats, Seatbelts, Sidewalls and Overhead Bins

42 Inspect Cabin Emergency Equipment: Portable Fire Ext, O2 Bottles, First Aid Kit

43 Inspect Cabin Doors and Emergency Exits Interior

44 Inspect Cockpit, Cockpit Seats and Seat Belts

45 Inspect Flight Compartment Lights

46 Check Battery Voltage on Maintenance Panel

Perform Engine Fire Detection and Squib Test

Visual Check of Propeller Electronic Control Bite Advisory Display

Sign-Off and Return to Service

Inspection Performed by:

Signature: Certificate Number: Date:

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5. Appendix B: Cargo Combination Inspection Checklist Complete this appendix when complying with the Cargo Combination Mod inspection required by the Aviation

Operations Center (AOC) Aircraft Inspection Program. Enter “N/A” in the Technician column of inspections not complied with at this time.

Aircraft Make / Model Serial Number Registration

Date Total Time Landings

500 Hour / A Check Inspection (GVI in place) * Technician

Visually inspect flooring panels for security of attachment, condition and damage (special attention to mount inserts and edge sealant for looseness missing or corrosion)

Visually inspect side wall / overhead paneling for security of attachment and overall condition

Visually inspect Divider wall and partition for security of attachment and overall condition and damage (special attention to seals, latch mechanism and attachment hardware)

Lubricate divider wall door latch mechanism and hinges with

LPS1 or equivalent

Visually inspect Securing straps for tears, frayed material, hooks and ratchet mechanism (special attention to oil or fluid saturation)

Lubricate Ratchet mechanism and hinges with LPS1 or equivalent

Visually inspect Cargo (D) rings and Cargo netting for wear and proper operation (special attention to seat track mounting hardware)

Lubricate cargo (D) rings and net mounting lugs / ratchet mechanism with LPS1 or equivalent

2 Year Inspection (DVI removed) ** Technician

Visually inspect flooring panels for security of attachment, condition and damage (special attention to mount inserts and edge sealant for looseness, missing material or corrosion)

Visually inspect side wall / overhead paneling for security of attachment and overall condition

ATR42 AIP Page 33 Revision 2 Dated 08/04/2022

Visually inspect Divider wall and partition for security of attachment and overall condition and damage (special attention to seals, latch mechanism and attachment hardware)

Visually inspect Securing straps for tears, frayed material, hooks and ratchet mechanism condition (special attention to oil or fluid saturation)

Seat track DVI PER JIC

(1) JIC 533300-DVI-10000-001

(2) JIC 535300-DVI-10000-002

(3) JIC 536300-DVI-10000-002

Visually inspect Cargo (D) rings and Cargo netting for wear and proper operation (special attention to seat stack mounting hardware)

Rejection Technician

Any Securing straps saturated with fluid must be replaced

Any flooring, side wall, divider or partition that is damaged beyond repair

Life Limited Parts Technician

Replace Securing Straps / netting at 10 year interval.

I certify the Inspections have been performed in accordance with the AOC Approved Aircraft Inspection Program and the aircraft is approved for return to service for the work performed.

FACILITY CERTIFICATE TYPE & NUMBER

SIGNATURE CERTIFICATE TYPE & NUMBER

NOTE* General visual inspection, panel removal NOT intended.

NOTE** Detailed visual inspection, panel removal required.

Reference Report NO. L-342400 REV (C) and Report NO. L-342400SA REV

(C). Reference 337 dated 03/21/2011

Reference FAA Form 8110-3 dated 06/22/2009

Reference Drawings

1) L-342709 FLOORPLAN LAYOUT IN ATR42

2) L-342707 PARTITION ASSEMBLY INSTALLATION IN ATR42

3) L-342705 CARGO PANELS ATR42-500

ATR42 AIP Page 34 Revision 2 Dated 08/04/2022

4) L-342706 SIDEWALL COVER IN ATR42-500

5) L-342708 OVERHEAD BIN CAP

6) L-342704 CARGO NET INSTALLATION ATR42

ATR42 AIP Page 35 Revision 2 Dated 08/04/2022

6. Appendix C: Inspection Listing

Task reference Title Description Threshold/Interval Sources Job Procedure

2 290000-CHK-10000-1 RESERVOIR VISUAL CHECK OF

HYDRAULIC FLUID

LEVEL THROUGH

RESERVOIR SIGHT

GLASS

I: LC (MRBR : 290000-

01)

JIC: 290000-CHK-10000

MP: ATR-A-29-XX-XX-

00ZZZ-281Z-A

2 324100-CHK-10010-1 LANDING GEAR

TIRES

CHECK OF MAIN AND

NOSE LANDING

GEAR TIRES FOR

PRESSURE,

GENERAL

CONDITION AND

WEAR -INCLUDING

ZONES 730 AND 740-

I: LC (MRBR : 324000-

01)

(MRBR : 324000-

02) (MRBR :

324000-15)

JIC: 324100-CHK-10010

MP: ATR-A-32-41-XX-

00ZZZ-360Z-A

2 121379-CHK-10000-1 ENGINE OIL

LEVEL

VISUAL CHECK OF

ENGINE OIL LEVEL

I: WY (MRBR : 720000-

01)

(LUR : I=WY)

JIC: 121379-CHK-10000

MP: ATR-A-12-13-79-00ZZZ-

310Z-A

2 122428-DRN-10000-1 STORAGE

WATER DRAIN

DRAINING OF

WATER FROM FUEL

TANK AND SURGE

TANK

I: WY (MRBR : 281000-

01)

JIC: 122428-DRN-10000

MP: ATR-A-12-24-28-00ZZZ-

220Z-A

2 324100-GVI-10010-1 LANDING GEAR

WHEELS

GENERAL VISUAL

INSPECTION OF

NOSE AND MAIN

WHEELS FOR

CONDITION

I: WY (MRBR : 324000-

18)

JIC: 324100-CHK-10000

MP: ATR-A-32-41-XX-

00ZZZ-310Z-A

2 324255-CHK-10000-1 BRAKE

ASSEMBLY

FUNCTIONAL CHECK

OF :

- BRAKE WEAR

INDICATOR

- BRAKE ASSY FOR

LEAKAGE

- FREEDOM OF

BRAKE DISCS

I: WY (MRBR : 324000-

04)

CMM: 324367

JIC: 324255-CHK-10000

MP: ATR-A-32-42-50-00ZZZ-

364Z-A

ATR42 AIP Page 36 Revision 2 Dated 08/04/2022

2 541201-DVI-10000-1 NACELLES

FRONT SECTION

DETAILED VISUAL

INSPECTION FOR

CRACK DETECTION

OF LH AND RH

ENGINE CENTER

AND REAR OIL

COOLER FLAPS ON

NACELLE FRONT

SECTION

I: WY (MRBR : 541201-1) JIC: 541261-DVI-10020

MP: ATR-A-54-12-60-00ZZZ-

281Z-A

2 612163-CHK-10000-1 PROPELLER

ELECTRONIC

CONTROLLING

VISUAL CHECK OF

PROPELLER

ELECTRONIC

CONTROL BITE

ADVISORY DISPLAY

ON MAINTENACE

PANEL

I: WY (MRBR : 612000-

16)

JIC: 612163-PRO-10000

MP: ATR-A-61-21-60-00ZZZ-

345Z-A

2 792162-CHK-10000-1 MAIN OIL FILTER VISUAL CHECK OF

MAIN OIL FILTER

IMPENDING BY-PASS

INDICATOR

I: WY (MRBR : 720000-

05)

JIC: 792261-CHK-10000

MP: ATR-A-79-22-60-00ZZZ-

281Z-A

2 792261-CHK-10000-1 OIL SCAVENGE

FILTER

VISUAL CHECK OF

OIL SCAVENGE

FILTER IMPENDING

BYPASS INDICATOR

I: WY (MRBR : 720000-

04)

JIC: 792261-CHK-10000

MP: ATR-A-79-22-60-00ZZZ-

281Z-A

2 792262-CHK-10000-1 CHIP DETECTOR INSPECTION OR

CONTINUITY CHECK

OF REDUCTION

GEARBOX AND

TURBOMACHINE

MAGNETIC CHIP

DETECTOR

I: WY (MRBR : 720000-

03) (MRBR :

720000-02)

JIC: 792262-CHK-10000

MP: ATR-A-79-22-60-01ZZZ-

281Z-A

ZL-100-GVI-10000-1 LOWER

FUSELAGE AND

RADOME

WALKAROUND

INSPECTION OF

LOWER FUSELAGE

AND RADOME

(INCLUDING NOSE

WHEELS WELL)

I: WY (MRBR : ZL-100-

01-1)

ATR42 AIP Page 37 Revision 2 Dated 08/04/2022

ZL-200-GVI-10000-1 UPPER

FUSELAGE

WALKAROUND

INSPECTION OF

VISIBLE PARTS OF

UPPER FUSELAGE

AND TOP FAIRINGS

I: WY (MRBR : ZL-200-

ZL-300-GVI-10000-1 TAIL FUSELAGE

AND

STABILIZERS

WALKAROUND

INSPECTION OF

VISIBLE PARTS OF

TAIL FUSELAGE AND

EMPENNAGENOTE:-

CHECK PRESENCE

OF STATIC

DISCHARGERS (15) -

CHECK PRESENCE

OF TAIL CONE

STATIC STRIPS (7)

I: WY (MRBR : ZL-300-

ZL-400-GVI-10000-1 POWER PLANT

AND NACELLES

WALKAROUND

INSPECTION OF

POWER PLANT AND

NACELLES

I: WY (MRBR : ZL-400-

ZL-500-GVI-10000-1 LH WING GENERAL VISUAL

INSPECTION FROM

GROUND OF WING

NOTE:

-CHECK PRESENCE

OF STATIC

DISCHARGERS(5)

-INSPECT FOR

EVIDENCE OF

LEAKAGE

-INSPECT SURGE

TANK AIR INTAKE

FOR

OBSTRUCTION

I: WY (MRBR : ZL-500-

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ZL-600-GVI-10000-1 RH WING GENERAL VISUAL

INSPECTION FROM

GROUND OF WING

NOTE:

-CHECK PRESENCE

OF STATIC

DISCHARGERS(5)

-INSPECT FOR

EVIDENCE OF

LEAKAGE

-INSPECT SURGE

TANK AIR INTAKE

FOR

OBSTRUCTION

I: WY (MRBR : ZL-600-

ZL-700-GVI-10000-1 LANDING GEAR

AND LANDING

GEAR DOORS

WALKAROUND

INSPECTION OF

MAIN AND NOSE

LANDING GEAR AND

CORRESPONDING

DOORS INCLUDING

WHEEL WELLS

I: WY (MRBR : ZL-700-

ZL-800-GVI-10000-1 FUSELAGE

DOORS

WALKAROUND

INSPECTION OF

FUSELAGE DOORS

(EXTERNAL

SURFACE) -DOORS

CLOSED-

I: WY (MRBR : ZL-800-

2 243185-CHK-10000-1 BATTERY

VOLTAGE

CHECK OF BATTERY

VOLTAGE ON

MAINTENANCE

PANEL

NOTE: THE

INTERVAL EXPIRING

FIRST WILL BE

APPLIED

I: WY

OR

I: 48 FH

(CMR : 243100-1)

(MRBR : 243100-

01)

JIC: 243185-CHK-10000

MP: ATR-A-24-31-80-00ZZZ-

367Z-A

272200-OPT-10000-1 RUDDER TRIM

CONTROL

SWITCHES

OPERATIONAL TEST

OF RUDDER TRIM

CONTROL

SWITCHES

I: 2 MO (CMR : 272200-2)

(LUR : I=2MO)

(MRBR : 272200-

02)

JIC: 272200-OPT-10000

MP: ATR-A-27-22-XX-00ZZZ-

320Z-A

ATR42 AIP Page 39 Revision 2 Dated 08/04/2022

273200-OPT-10000-1 ELEVATOR TRIM

CONTROL

SWITCHES

OPERATIONAL TEST

OF ELEVATOR TRIM

CONTROL

SWITCHES

(NORMAL)

I: 2 MO (CMR : 273200-3)

(MRBR : 273200-

03)

(LUR : I=2MO)

JIC: 273200-OPT-10000

MP: ATR-A-27-32-XX-00ZZZ-

320Z-A

273200-OPT-10000-1 TRIM -

ELEVATOR

OPERATIONAL TEST

OF ELEVATOR TRIM

CONTROL

SWITCHES

(NORMAL)

I: 2 MO (CMR : 273200-6)

(MRBR : 273200-

06) (LUR :

2MO)

JIC: 273200-OPT-10000

MP: ATR-A-27-32-XX-00ZZZ-

320Z-A

273600-OPT-10010-1 STALL WARNING OPERATIONAL TEST

OF STALL WARNING

AND STICK PUSHER

IN NORMAL

CONDITION AND

CHECK THAT

THRESHOLD

DECREASE IN EACH

MFC MODULE WHEN

ANTI ICE IS ON:

FLAPS RETRACTED

I: 2 MO (CMR : 273600-1)

(MRBR : 273600-

01) (MRBR :

273600-03A)

(LUR : 2MO)

JIC: 273600-OPT-10000

MP: ATR-A-27-36-XX-00ZZZ-

320Z-A

282000-CHK-10000-1 DISTRIBUTION CHECK IF FEEDER

TANK JET-PUMP

FAILURE HAS BEEN

RECORDED IN THE

MAINTENANCE

MEMORY OF THE

MULTI FUNCTION

COMPUTER

I: 2 MO (CMR : 282000-7)

(MRBR : 282000-

07) LUR :

I=2MO)

JIC: 451300-RDG-10000

MP: ATR-A-45-XX-XX-

03ZZZ-345Z-A

JIC: 451300-RON-10000

MP: ATR-A-45-XX-XX-

02ZZZ-345Z-A

(PRE 4650)

612200-OPT-10000-1 PRIMARY

FEATHERING

PUMP

OPERATIONAL TEST

OF PRIMARY

FEATHERING

SYSTEM AND

AUXILIARY

FEATHERING PUMP

I: 2 MO (CMR :…