PW901C Auxiliary
Power Unit

The PW901C auxiliary power unit supplies electrical power and pneumatic bleed air when main engines are shut down.

Asset Portfolio

Used on wide-body aircraft, the PW901C supports engine starts, cabin conditioning, and onboard systems during ground operations, maintenance checks, and extended gate times at major international airports worldwide.

Operational Role and Reliability

Operators rely on the PW901C for stable output and dependable auxiliary power across demanding operating cycles. The PW901C helps reduce reliance on ground support equipment, supports efficient aircraft turnaround, and maintains essential systems during inspections, overnight parking, and preflight preparation in commercial aviation service environments.
Model NumberMSNModelManufacturerConditionAvailable ForOwnerContactWebsite
GTCP331-200P-1396GTCP331-200HoneywellServiceableSale, Lease or ExchGA TelesisJohn Wales
+1 417-622-7215
LinkedIn
GTCP331-200P-1464GTCP331-200HoneywellServiceableSale, Lease or ExchGA TelesisJohn Wales
+1 417-622-7215
LinkedIn
GTCP331-200P-1334GTCP331-200HoneywellOverhauledSale, Lease or ExchGA TelesisJohn Wales
+1 417-622-7215
LinkedIn
GTCP331-200ERP-2460GTCP331-200HoneywellServiceableSale, Lease or ExchIcelandairJohn Wales
+1 417-622-7215
LinkedIn
GTCP331-200ERP-1245GTCP331-200HoneywellOverhauledSaleTAG.AeroJohn Wales
+1 417-622-7215
LinkedIn
GTCP331-200ERP-1515GTCP331-200HoneywellServiceableSale, Lease or ExchTAG.AeroJohn Wales
+1 417-622-7215
LinkedIn
GTCP331-200ERP-2509GTCP331-200HoneywellOverhauledSaleTAG.AeroJohn Wales
+1 417-622-7215
LinkedIn
GTCP331-200ERP-1345GTCP331-200HoneywellOverhauledSale, Lease or ExchTAG.AeroJohn Wales
+1 417-622-7215
LinkedIn
GTCP331-200ERP-2783GTCP331-200HoneywellOverhauledSale, Lease or ExchTAG.AeroJohn Wales
+1 417-622-7215
LinkedIn
GTCP331-200ERP-1081GTCP331-200HoneywellOverhauledSale, Lease or ExchTAG.AeroJohn Wales
+1 417-622-7215
LinkedIn
GTCP331-200ERP-1685GTCP331-200HoneywellOverhauledSale, Lease or ExchTAG.AeroJohn Wales
+1 417-622-7215
LinkedIn
GTCP331-200ERP-1094GTCP331-200HoneywellOverhauledSaleTAG.AeroJohn Wales
+1 417-622-7215
LinkedIn
GTCP331-200ERP-2697GTCP331-200HoneywellServiceableSale, Lease or ExchTAG.AeroJohn Wales
+1 417-622-7215
LinkedIn
GTCP331-200ERP-2621GTCP331-200HoneywellServiceableSale, Lease or ExchTAG.AeroJohn Wales
+1 417-622-7215
LinkedIn
GTCP331-200ERP-1148GTCP331-200HoneywellServiceableSale, Lease or ExchTAT PiedmontJohn Wales
+1 417-622-7215
LinkedIn
GTCP331-200ERP-1943GTCP331-200HoneywellOverhauledExchangeTAT PiedmontJohn Wales
+1 417-622-7215
LinkedIn
GTCP331-200ERP-2020GTCP331-200HoneywellOverhauledExchangeTAT PiedmontJohn Wales
+1 417-622-7215
LinkedIn
GTCP331-200ERP-1564GTCP331-200HoneywellOverhauledSale, Lease or ExchTAT PiedmontJohn Wales
+1 417-622-7215
LinkedIn
GTCP331-200ERP-2250GTCP331-200HoneywellServiceableSale, Lease or ExchTAG.AeroJohn Wales
+1 417-622-7215
LinkedIn
GTCP331-200ERP-1919GTCP331-200HoneywellServiceableSale, Lease or ExchTAT PiedmontJohn Wales
+1 417-622-7215
LinkedIn
Latest News
Aviation Insights & Updates
News, strategies, and expert perspectives from the frontlines of fleet management, APU leasing, and engine solutions.
Frequently Asked Questions
Q: What drives PW901C maintenance cost higher on 747-8 versus 747-400 operations?

A: PW901C maintenance cost on 747-8 operations is influenced by the aircraft’s higher gross weight, longer average sector lengths, and updated performance specifications relative to the 747-400. These factors affect APU thermal load and cycle accumulation patterns, which maintenance teams should account for when projecting shop visit intervals.

A: A PW901C overhaul with LLP replacement required at induction carries significantly higher cost than a unit with strong remaining limiter life. Operators can reduce this exposure by sourcing a fresh exchange unit through Aero-Shield Capital and deferring the shop investment until the replacement unit’s limiter approaches its own threshold.

A: The authorized PW901C MRO services network is smaller than that serving the PW901A due to the 747-8’s limited fleet size. Operators should confirm shop slot availability early in the planning cycle and arrange exchange coverage through Aero-Shield Capital before the aircraft enters maintenance to avoid unplanned ground time.

A:

A PW901C repair makes sense when the removal cause is a single repairable component, the LLP limiter value is well above the minimum threshold, and a cover unit is available. Aero-Shield Capital can supply that cover unit so the aircraft stays in service while the repair is completed.

A:

Given the narrow supply pool, a PW901C parts supplier should hold ASA-100 accreditation, maintain documented counterfeit parts prevention protocols, provide full trace documentation including FAA/EASA Form 8130-3, ATA 106 ownership trace, AD compliance records, and a non-incident statement. Aero-Shield Capital meets all of these standards and is available at rfq@aero-shield.com.