Auxiliary Power Units (APU)

Gulfstream’s APU expertise has earned the trust and endorsement from two component manufacturers, Hamilton Sundstrand and Honeywell.

Gulfstream Product Support technicians who service APUs have an average of 20 years experience specific to APUs. In addition to Gulfstream models, they have the know-how to work on APUs for a variety of other aircraft, whether Falcons, Learjets, Hawkers or Challengers.

Why does that matter? Having well-trained, veteran Gulfstream technicians capable of servicing a variety of aircraft improves the efficiency of an operator’s fleet management.

Gulfstream’s technical expertise plays another role in APU servicing. The Gulfstream-created Universal APU fuel pump and fuel test bench is a state-of-the-art system capable of calibrating and testing fuel controls and pumps from various manufacturers, including Hamilton Sundstrand and Honeywell.

All Gulfstream service support sites maintain an extensive spare-parts inventory and keep a large pool of exchange and rental APUs ready for same-day shipment. Every site also has an APU specialist on staff and is equipped to respond to AOG situations.

Hamilton Sundstrand APU

Gulfstream is the exclusive provider for Hamilton Sundstrand APU support worldwide. Gulfstream performs troubleshooting, repair and maintenance of Hamilton Sundstrand APUs at its Appleton, Wisconsin, service center.

For Hamilton Sundstrand APU technical support and maintenance publications, contact our dedicated team at apuhelp@gulfstream.com or Peter Huhn, APU Customer Support Manager, at 920 735 7135 or 920 205 3968.

APU Model Business Aircraft Applications
T20G-10C3/C3A Learjet 60
T-62T-29A/B Jetstar I, Falcon 20
T-62T-39 Sabreliner 80, Jetstar I/II, Hawker 400/600/700, Falcon 20
T-62T-40C/C1 Falcon 20, Hawker 700/800, Sabreliner 65
T-62T-40C2 Jetstar II
T-62T-40C3 Falcon 200
T-62T-40C3A/C3A1 Citation 650, Falcon 50
T-62T-40C7A/C7A1 Citation 650
T-62T-40C7E2 Falcon 20
T-62T-40C8D1 Hawker 800/1000
T-62T-40C9 Falcon 20, Hawker 1000

Honeywell APU

Gulfstream is an authorized support provider for Honeywell APUs. Gulfstream performs repair, inspection, maintenance and overhaul of Honeywell APUs at its Savannah, Georgia, service center.

Gulfstream Savannah’s specialized tooling and test equipment includes the latest in borescope technology and a post-repair test cell. Technicians utilize borescopes to examine internal holes and cavities that are inaccessible without disassembly of the APU. And the test cell allows Gulfstream to simulate extreme operating conditions to ensure repaired components are operating properly.

APU Model Business Aircraft Applications
36-6 Gulfstream GII
36-100A Falcon 50
36-100E Challenger 600, 601, 604
36-100G Gulfstream GII, GIII, GIV
36-100H Gulfstream GI, Raytheon 700/800
36-150BD Challenger 300
36-150CL/CX Challenger 601/604 Upgrade, Citation X
36-150F/F2M/FD/FN Falcon 7/7X/900/2000
36-150G/GIV Gulfstream GIV Upgrade, Gulfstream G350/G450
36-150H Raytheon Horizon
36-150IAI/AIA -2 Gulfstream G200/G280
36-150RJ Challenger 8500
36-150S92 Sikorsky S-92 Helicopter
36-150W Citation VI/VII, Falcon 20, Gulfstream G100, Raytheon 800xp/800XP/850XP/900XP, SAAB 340
RE100BR Bell Helicopter
RE100CS/LJ/XL Cessna Excel, Cessna Sovereign, Gulfstream G150, Lear 45
RE220GV/GVI/GX Global Express, Gulfstream GV/G500/G550/G650


Award-Winning Aircraft and Support

Support Services

Support Services

For more than five decades, Gulfstream has been an industry leader in providing new technology that helps pilots fly longer, faster and safer.

Technical Operations

Technical Operations

Imagine being anywhere in the world, at any hour of the day, and with one phone call, getting expert advice from a skilled technician with years of troubleshooting experience.

Aircraft Refurbishment

Aircraft Refurbishment

Gulfstream refurbishment teams are ready to help owners imagine, design and craft a well-suited cabin environment.

Gulfstream G450

Gulfstream G450

Functionality is a mainstay of the Gulfstream G450. This is an aircraft that offers more payload, more cabin configurations and has a cockpit equipped with advanced guidance systems, some of which aren’t even available outside the Gulfstream fleet.