STATEMENT OF WORK

Gulfstream III Aircraft NASA 808 72-Month Inspections

Support Aircraft Management & Operations (SAMO)

March 27, 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. 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 an FAA 14 CFR PART 145 certified Repair Station. All planned maintenance shall be performed at the certified 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 FAA certified maintenance & repair station shall be located within the contiguous United States. NASA personnel may have the need to assist the certified 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 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 FAA certified 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 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.

5 23 Mar 2026 Update Section 3.0 and 6.0

6 27 Mar 2026 Removed reference of Gulfstream certified repair station and kept FAA 14 CFR PART 145 certification references.