SOW_808-72Month_Rev4_9Mar2026.pdf

STATEMENT OF WORK

Gulfstream III Aircraft NASA 808 72-Month Inspections

Support Aircraft Management & Operations (SAMO)

March 9, 2026

National Aeronautics and Space Administration

Armstrong Flight Research Center

Edwards, California

Table of Contents

1.0 Background

2.0 Objectives

3.0 Scope

4.0 Requirements

5.0 Deliverables

6.0 Government-Furnished Property (GFP)

7.0 Security Considerations

8.0 Travel

9.0 Special Material Requirements

10.0 Other Unique Requirements and Considerations

11.0 Place of performance

12.0 Period of performance

1.0 Background

The National Aeronautics & Space Administration (NASA) operates a Gulfstream III aircraft (N808NA) for flight research purposes at the Armstrong Flight Research Center (AFRC). N808NA alternates between acting as a public use aircraft and an FAA certified aircraft. Periodic maintenance and inspections, as outlined below, are required for the airplane to remain safely in service to the agency.

2.0 Objectives

The objective of this Statement of Work (SOW) is to detail the required tasks to be completed for the necessary 72-month inspection, as well as optional tasks the Government may require. Multiple scheduled maintenance items are listed separately in addition to an upgrade modification. The Contractor shall complete all work within the specified period of performance and provide proper documentation to certify the aircraft’s airworthiness, provide teardown reports at each stage, and provide full documentation of completed inspections. The end product is the return of the aircraft asset to NASA

AFRC in serviceable condition for continued flight research activity within 90 days.

3.0 Scope

The Contractor shall complete all of the required tasks listed in Section 4.1, as well as any option tasks identified in Section 4.0 upon exercise of the option. The primary objectives to be completed are the 72-month inspections and Controller Pilot Data Link Communications (CPDLC) incorporation. Other aircraft maintenance associated with 36-month and 24-month inspections may be accomplished concurrently by NASA AFRC qualified personnel at the Contractor’s facility.

4.0 Requirements

4.1 The contractor shall fulfill the following requirements for Gulfstream III aircraft serial number

424 (FAA registration number N808N).

4.1.1 The Contractor shall be a certified Gulfstream maintenance & repair station and shall be an FAA certified 14 CFR PART 145 FAA Repair Station. All planned maintenance shall be performed at the certified Gulfstream maintenance & repair station. Due to the highly technical and certification requirements of this maintenance, all scheduled maintenance tasks must be performed at the same site, unless a waiver is approved by NASA for an alternate location.

4.1.2 The certified Gulfstream maintenance & repair station shall be located within a 250-mile radius from Edwards, CA, due to the time constraint, current location of the G-IIIs, and availability of NASA AFRC personnel to support this requirement. NASA personnel may have the need to assist the certified Gulfstream maintenance & repair station with NASA technicians and parts that may be needed during the inspection process. This location shall be accessible by G-III aircraft (airport). Transportation to and from the certified

Gulfstream maintenance & repair station of the aircraft will be performed by NASA

AFRC.

4.1.3 The Contractor shall allow NASA designated personnel including engineers, inspectors, aircraft maintenance, and other technical experts to observe the work at any time. NASA designated personnel may include employees of NASA and employees of NASA AFRC support contracts. The Contractor shall allow NASA civil servant and/or contractor technicians to carry their own tools on site and perform any CMP cards not listed in this

SOW or maintenance that they deem necessary during the duration of the scheduled inspections being completed by the Contractor. NASA personnel will coordinate with the

Contractor and request permission prior to accessing and starting work on the aircraft.

4.1.4 The Contractor must notify NASA designated inspector at the following progress points for inspection/witnessing: i. After systems are removed, ii. Before and during reinstallation of aircraft systems.

4.1.5 An expected duration of maintenance inspections tasks must be estimated ahead of time, and an estimated schedule shall be provided as part of the Contractor’s quote.

4.1.6 Gulfstream Computerized Maintenance Program (CMP) 72-month inspection tasks:

279010 Aileron Hinge Fitting (Left) – Inspection

279015 Aileron Hinge Fitting (Right) – Inspection

279020 Aileron Trim Tab Hinge Fitting – Inspection

279021 Aileron Trim Tab Actuator – Inspection

279025 Aileron Boost Bell Crank (Left) – Inspection

279030 Aileron Boost Bell Crank (Right) – Inspection

279035 Aileron Actuator (Left) – Inspection

279040 Aileron Actuator (Right) – Inspection

279045 Elevator Hinge Fitting (Left) – Inspection

279050 Elevator Hinge Fitting (Right) – Inspection

279055 Elevator Trim Tab/Hinge Fitting (Left) – Inspection

279060 Elevator Trim Tab/Hinge Fitting (Right) – Inspection

279065 Flight Spoiler Hinge (Left Inboard) – Inspection

279070 Flight Spoiler Hinge (Right Inboard) – Inspection

279075 Flight Spoiler Hinge (Left Outboard) – Inspection

279080 Flight Spoiler Hinge (Right Outboard) – Inspection

279096 Ground Spoiler/Hinge – Inspection (Right)

279510 Flight Spoiler Actuator (Left) – Inspection

279515 Flight Spoiler Actuator (Right) – Inspection

279530 Rudder/Hinge – Inspection

279535 Rudder Torque Tube – Inspection

279540 Ground Spoiler Actuator (Left) – Inspection

279545 Ground Spoiler Actuator (Right) – Inspection

279550 Rudder Actuator & Forward Attach Fitting – Inspection

279554 Rudder Trim Actuator – Inspection

515152 Vertical Stabilizer Attach Fitting

539413 Antenna Interface – Inspection

552037/552038 Elevator Leading Edge & Ballast Weight (Left/Right) – Inspection

552515 Rudder Leading Edge & Ballast Weight Corrosion (Aluminum Rudder) –

Inspection

573030/573035 Left/Right Aileron Interior – Inspection

575030/575035 Wing Wedge (Left/Right) – Inspection

575050/575055 Wing Sponson Rib (Left/Right) – Inspection

576511/576516 Winglet Attach Hardware (Left/Right) – Inspection

781077/781078 Left/Right Thrust Reverser Hush Kit “D” Check

290146 Auxiliary Hydraulic Filter (Pressure) – Scrap

290142 Combined Hydraulic Filters (Pressure) – Scrap

290140 Hydraulic Combined Return Outer Filter – Scrap

290141 Flight Return Outer Filter – Scrap

290144 Flight Hydraulic Filters (Pressure) – Scrap

290147 Auxiliary Hydraulic Filter (Return) - Scrap

4.1.7 The Contractor is hereby informed that the aircraft has been modified and has wiring and instrumentation that is unique to our research. This instrumentation shall be avoided during inspection and protected. The NASA technician(s) will be available to provide verbal and physical help with any issues that arise with this specialized equipment and its location.

4.1.8 The Contractor shall have the capabilities, experience, and equipment to repair any discrepancies discovered during these inspections. The certified Gulfstream maintenance

& repair station shall immediately notify the on-site NASA designated personnel should any unknown conditions be found requiring repair outside the original scope of this contract and provide a breakdown of discrepancies found, parts required, and cost.

4.1.9 The Contractor shall immediately notify the NASA designated person should any conditions be found requiring repair outside the original scope of this contract. The

NASA designated personnel will coordinate with the Contractor and relevant NASA

AFRC offices to develop a disposition plan for the additional repair and to secure authorization for any additional required work. Under no circumstances should the

Contractor perform work outside the original scope of this contract without the express authorization of the NASA Contracting Officer (CO).

4.1.10 After performing the required repairs and scheduled maintenance tasks the Contractor shall restore the aircraft to a flyable state. This includes reinstallation, operational checks and leak checks of removed panels and aircraft systems, logbook entries, return to service authorizations, and any other required closeout tasks.

4.2 At the discretion of NASA AFRC, the following optional requirements may be required from the

Contractor for Gulfstream III aircraft serial number 424 (FAA registration number N808NA).

This work may only commence upon formal written approval from the CO indicating the exercise of the optional work.

4.2.1 Upgrade to FANS -1/A+ capability Universal Avionics FMS system in accordance with relevant Supplement Type Certificate (STC) standard(s)

4.2.2 Gulfstream Computerized Maintenance Program (CMP) 36-month inspection tasks

736510/736515 Engine Temperature Control System – Functional Test

762020/762025 Engine Controls – Operational Test

321415 Landing Gear Emergency Air Bottle – Hydrostatic Test

277555 Rudder Pedal Controls – Lubrication

277598 Speed Brakes – Operational Test (for aircraft having 6-panel speed brake)

282050 Fuel Control System – Functional Test

322060/322065 Anti-Skid Valve Filter (Left/Right) – Inspection

368020 APU/External Air Check Valve (36 Month)

535020 Forward Cabin Compartment Below Floor – Inspection

535030 Mid Cabin Compartment Below Floor – Inspection

551010/551015 Horizontal Stabilizer/Elevator (Left/Right Exterior) – Inspection

551020 Vertical Stabilizer/Rudder Exterior – Inspection

552030/552035 Horizontal Stabilizer & Elevator (Left/Right Interior) – Inspection

552040 Vertical Stabilizer/Rudder Interior

571010/571015 Wing Exterior (Left/Right) – Inspection

573010/573015 Wing Leading Edge Gap Band Interior (Left/Right) – Inspection

575576 Wing Vertical Breather Angle – Inspection

4.2.3 Gulfstream Computerized Maintenance Program (CMP) 24-month inspection tasks

762010/762015 Engine Controls Service/Lubrication

770510/770515 Engine TGT Indicator – Validation Check

305530 Probe Heat (EPR Pitot) – Operational Test

322030 Normal Landing Gear System Functional Test Due

322035 Emergency Landing Gear System – Functional Test

322050 Wheel Brakes – Functional Test

361015 High Pressure Regulating Valve (Right) – Operational Test

785035 Right Engine Thrust Reverser Interlock Feedback System – Operational Test

334530 Master Warning/Auxiliary Master Warning Power Circuit Breaker Light –

Complete Check

234550/234555 Static Discharger Wick, Left/Right Wing – Resistance Check

234560/234565 Static Discharger Wick, Left/Right Horizontal Stabilizer – Resistance Check

234570 Static Discharger Wick, Tail Cone – Resistance Check

234575 Static Discharger Wick, Vertical Stabilizer – Resistance Check

237501 Voice Recorder – Inspect & Clean

251080 Pilot/Co-Pilot Inertia Reel Operational Test

262025/262030 Fire Bottle (Left/Right) – Weight Check

310202 Flight Data Recorder Underwater Locator Beacon – Battery Voltage

525530 Door Seal Regulator & System – Inspection

526520 Main Entrance Door – Inspection

526560 Entrance Door Inflatable Seal System – Operational Test

525565 Baggage Door Inflatable Seal System – Operational Test

532010 Entrance Compartment Behind Panel – Inspection Due

534040 Tailcone Interior – Inspection Due

534060 Cockpit Compartment Below Floor – Inspection

535040 Aft Cabin Compartment Below Floor – Inspection

534060 Cockpit Compartment Below Floor – Inspection

535040 Aft Cabin Compartment Below Floor – Inspection

536581 Shear Clips Aft Fuselage – Inspection

552500 Rudder Ballast Weight – Inspection (Lead Weight Only)

490505 APU – Oil Change

245062 Thrust Reverser Unit (TRU) Cleaning/Inspection (VSFC)

305520 Probe Heat (Angle of Attack) – Operational Test

305525 Probe Heat (Pitot) – Operational Test

306510 Cabin Window Desiccant Filter System – Inspection

322045 Nose Gear Strut – Friction Check

322080 Nose Gear Shock Strut – Service

322085 Nose Gear Strut Assembly – Corrosion Prevention

324289 Nose Landing Gear Bungee Lubrication

515015 24 Month Honeycomb – Inspection/Bond Test

532030 Cabin Compartment Above Floor – Inspection

534005 Nose Wheel Well Electrical Junction Box Interior – Inspection

534020 Mid Fuselage/Wing Fillet Interior – Inspection

534030 Aft Fuselage Interior – Inspection

534050 Cockpit Compartment Above Floor – Inspection

534070 Cockpit Compartment Below Pedestal – Inspection

534090 Entrance Compartment Above Floor – Inspection

535010 Entrance Compartment Below Floor – Inspection

535060 Baggage Compartment Behind Panel – Inspection

561010 Emergency Window Release – Operational Test

490506 Magnetic Drain Plug - Inspection

312545 Clock Battery, Co-Pilots

312540 Clock Battery, Pilots

490510 APU Oil Filter Element

526530 Main Entry Door Hinge Pins – Inspection

526565 Baggage Door Inflatable Seal System – Operational Test Due

533020 Exterior Fuselage – Inspection Due

534010 Torsion Box – Inspection Due

264035 APU Overheat Switch – Trip Point Check

322270/322275 Main Gear Side Brace Fitting Pin (Left/Right) – Inspection

324266/324267 Main Landing Gear Sequencing Bungee (Left/Right) – Lubrication

535050 Baggage Compartment Above Floor – Inspection

535080 Tail Compartment Below Floor – Inspection Due

781075/781076 Left/Right Thrust Reverser Hush Kit “C” Check

785010/785015 Left & Right Engine NAP Thrust Reverser Assembly – Inspection

217090 Cabin Pressurization Safety Valve – Inspection

262010/262015 Fire Extinguisher System (Left/Right Engine) – Functional Test

264090/264095 Engine Generator/Alternator (Left/Right) Overheat Switch – Trip Point Check

265050/265055 Bleed Air Overheat Switch (Left/Right) – Trip Point Check

265060 Combined Hydraulic System Overheat Switch – Trip Point

265065 Flight Hydraulic System Overheat Switch – Trip Point

535070 Baggage Compartment Below Floor – Inspection

572530/572535 Lower Wing Planks BL 0 to BL 19 (Left/Right) – X-ray/NDT Inspection

4.2.4 Gulfstream Computerized Maintenance Program (CMP) 12-month inspection tasks

253030 Emergency Locator Transmitter (ELT) Service/Functional Check (FAR 91.207)

241467/241468 Aircraft Battery Numbers 1 & 2 – Capacity Check

237500 Cockpit Voice Recorder System – Ground Test

237498 Cockpit Voice Recorder System – Flight Test

262582 Portable Water Fire Extinguisher (Aft Cabin) – Weight Check

263038 Portable Halon Fire Extinguisher (Cockpit) – Weight Check

263040 Portable Halon Fire Extinguisher (Forward Cabin) – Weight Check

263045 Portable Halon Fire Extinguisher (Aft Cabin) – Weight Check

262584 Airframe – Portable Water Fire Extinguisher (Aft Cabin) – Detailed Inspection

253530 First Aid Kit #1 – Inspection

256346 Defibrillator – Inspection

271061 Aileron Actuator Damper Shaft (Left) – Inspection

271066 Aileron Actuator Damper Shaft (Right) Inspection

273021 Elevator Actuator Damper Shaft – Inspection

526510 Main Entrance Door – Lubrication

526515 Baggage Door – Lubrication

541020/541025 Pylon Interior (Left/Right) – Inspection

322087 Nose Gear Axle Assembly – Corrosion Prevention

531010 Nose Wheel Well & Gear – Inspection

711510/711515 Left & Right Powerplant (Internal) – Inspections

531020/531025 Main Landing Gear Installation (Left/Right) – Inspection

4.2.5 Additional Gulfstream Computerized Maintenance Program (CMP) tasks:

572510/572515 Wing Tank Interior (Left/Right) Inspection

572520/572525 Wing Splice Fail Safe Channel BL 135-156 (Left/Right) NDT Inspection Ops -2

711530/711535 Left & Right Exterior Powerplant – 450 Hour Visual Inspection

711531/711536 Left & Right Exterior Powerplant – 900 Hour Visual Inspection

732020/732025 Left & Right Engine Fuel Filter Element – Service

257530 Lavatory Comp (Above Floor) – Inspection (AD74-08-09)

803030/803035 Left & Right Engine Starter – Oil Change

714001/714002 Left & Right Engines Fuel Tubes & Manifolds – Inspection

215515 Water Separator Bag – Service, Cleaning, or Replacement

520100 Entrance Door Seal Check Valve Filter - Scrap

4.2.6 Aircraft fault repairs: Fuel Leaks – noticeable in the keel beam and lower wing box areas

4.2.7 Aircraft fault repairs: Interior Repairs – cabin seat adjustments mechanism repairs

5.0 Deliverables

The contractor shall provide these deliverable items:

5.1 Regular updates including detailed progress reports, inspection results, findings for resolution, and needs from NASA AFRC. This shall be provided at least every 2 weeks with percentage of cards completed to date and estimated days to complete remaining items.

5.2 GIII NASA 808 aircraft serial number 424 in an airworthy state with all relevant inspections and maintenance tasks completed. The aircraft instrumentation system must also be unharmed upon delivery.

5.3 A certificate of conformance, FAA 8130, and certification documentation stating what maintenance and inspections have been performed on the aircraft.

5.4 All records associated with completion of scheduled maintenance tasks as listed by the

Gulfstream CMP.

5.5 Material certification records for any fasteners.

5.6 A report summarizing any discrepancies or findings and what was done to correct them.

5.7 Documentation needed to update our aircraft maintenance tracking system.

6.0 Government-Furnished Property, Material, Equipment, or Information (GFP, GFM, GFE, or

GFI)

GFP, GFM, GFE, and GFI shall be handled in accordance with the FAR Part 45 and NFS 1845 clauses included in this contract. NASA AFRC will provide the Gulfstream III NASA 808 aircraft serial number

424 and any relevant documentation depicting the modified portions of the aircraft that may be useful for completion of scheduled maintenance tasks or CPDLC equipment integration. NASA AFRC Quality

Assurance (QA) personnel will also supply a list of inspection points to be observed during the scheduled maintenance activity. For any maintenance or modifications performed by AFRC personnel, AFRC will provide necessary equipment.

7.0 Security

There are no unique security requirements associated with this contract activity.

8.0 Travel

Contractor travel is not necessary for execution of this contract. Select NASA AFRC personnel may travel to the contractor facility for oversight of task work or conduct of approved maintenance tasks to the aircraft.

9.0 Special Material Requirements

If items are required to fix discrepancies, the Contractor is required to use certificated material and provide all chemical/physical and other certification for the items used on our aircraft at the completion of the project.

10.0 Other Unique Requirements

10.1 Quality Assurance:

10.1.1 NASA AFRC Quality Assurance (QA) personnel will occasionally need to be present at the contractor facility for Government Mandatory Inspection Points (GMIPs) and

Mandatory Inspection Points (MIPs).

10.1.2 After NASA AFRC QA personnel identify and supply the inspection point criteria, the contractor will provide notification of when the aircraft is expected to be ready. This notification shall be made with adequate time for AFRC personnel to travel to the worksite without delaying maintenance progress.

10.1.3 The Contractor shall comply with all applicable sections of Q-1A and Q-3 (see attachments Q-1A.pdf and Q-3.pdf) and shall utilize tool control program that meets or exceeds (AFOP-7900.3-002 Chapter 7.18 thru 7.18.3 Tool & Equipment Control).

NASA will provide documentation with the approved officials that will be onsite.

10.1.4 Non‐conformance: The Contractor shall have in place a procedure for reporting of nonconforming articles, materials, and equipment. ("Non‐conformance" is defined as a condition of any article, material, or service in which one or more characteristics do not conform to the specified requirements. This includes failures, discrepancies, deficiencies, defects, anomalies, and malfunctions).

10.1.5 Inspection: The Contractor shall provide aircraft inspectors to verify that work is performed in accordance with technical specifications and that the workmanship is airworthy. The inspectors shall ensure that all inspection/repair documentation is completed and delivered to the government.

10.2 NASA AFRC aircraft maintenance and avionics personnel may perform work on the aircraft while it is at the contractor facility.

10.3 All over and above (O&A) findings will be reported to NASA AFRC. Prior to the contractor initiating a resolution to an O&A finding, NASA AFRC will review each finding to determine if a solution is necessary. The contractor is not permitted to enact a solution to an over and above finding without written permission from NASA AFRC. If any O&A findings require additional cost, prior written approval must be provided by the NASA Contracting Officer.

11.0 Place of Performance

The place of performance will be at the contractor facility location.

12.0 Period of Performance

The period of performance is 90 calendar days from delivery of the aircraft for servicing to the contractor facility.

REVISIONS

Revision

Number Date Brief Summary of Changes

Base 14 Aug 2025 Initial draft

1 21 Aug 2025

Added 60-month & 12-month inspections, changed CPDLC requirement to FANS-1/A+, listed AFRC maintenance and avionics personnel as potential workers on aircraft, corrected errors

2 18 Dec 2025 Final requirements with some as optional

3 5 Feb 2026 Additional required maintenance tasks and major revision to requirement statements and overall scope descriptions

4 9 Mar 2026 Section 6.0 Added reference to FAR and NFS clauses.