The Pratt & Whitney auxiliary power unit lineup covers some of the most operationally significant aircraft in commercial service. The APS3200 powers the Airbus A320 family, the APS5000 powers the Boeing 787 Dreamliner, and the PW901A and PW901C serve the Boeing 747. Sourcing serviceable units with complete, compliant documentation is a specialized capability that separates accountable lessors from general parts traders.
Here are six U.S.-based companies airlines and MROs should know in 2026.
- Aero-Shield Capital
Aero-Shield Capital, headquartered in Chicago, Illinois, directly owns and manages multiple Pratt & Whitney auxiliary power unit models, including the PW901A, PW901C, APS3200, and APS5000 — covering the Boeing 747-400, Boeing 747-8, Airbus A320 family, and Boeing 787 Dreamliner. The company publishes full lifecycle data per asset, including TSN, CSN, TSO, CSO, and current LLP limiter status. Every unit is owned in-house, not brokered, and operates to FAA/ASA-100 standards with documented counterfeit parts prevention protocols.
What sets them apart:
- Direct inventory across all four major Pratt & Whitney APU models.
- Full lifecycle data and documentation on every unit.
- Purchase-leaseback programs for operators converting existing assets into capital.
- GA Telesis
GA Telesis, based in Fort Lauderdale, Florida, operates a dedicated Power Solutions division covering Pratt & Whitney and Honeywell APU models across all major Airbus and Boeing platforms. The company has invested tens of millions of dollars in new and overhauled APU inventory and can structure same-day exchange options, long-term operating leases, and custom stock provisioning programs.
What sets them apart:
- Dedicated Power Solutions team with Pratt & Whitney APU inventory depth.
- Same-day exchange capability for urgent AOG situations.
- Integrated MRO capability through GA Telesis Engine Services facilities in the U.S. and Finland.
- TurbineAero
TurbineAero, headquartered in Chandler, Arizona, has serviced over 10,000 APUs across 45 years of operation. The company holds FAA-145 certification and covers the APS3200 and PW901 series alongside multiple Honeywell models. Its leasing and exchange programs are backed by in-house MRO certification, meaning every unit made available for lease is certified through TurbineAero’s own shop.
What sets them apart:
- FAA-145 certified MRO with in-house APS3200 and PW901 series capability.
- DERs on staff for in-house component certification.
- Kellstrom Aerospace (A VSE Aviation Company)
Kellstrom Aerospace, now a VSE Aviation company, is a diversified global leader in aviation technical services and distribution solutions headquartered in Davie, Florida. The company holds exclusive worldwide distribution rights for PW901A APU fuel pumps, making it a direct supply chain resource for 747-400 operators. VSE Corporation completed its acquisition of Kellstrom in December 2024, combining Kellstrom’s OEM-centric distribution network with VSE Aviation’s repair and parts capabilities into a single commercial aftermarket platform.
What sets them apart:
- OEM-exclusive distribution across Pratt & Whitney, GE, and CFM engine lines.
- Leasing and trading desk supporting both operating lease and exchange structures.
- Backed by VSE Corporation (NASDAQ: VSEC), a publicly traded U.S. aftermarket company.
- Patriot Dynamics
Patriot Dynamics specializes in commercial aircraft APU transactions — sale, lease, and sourcing — across Boeing and Airbus widebody and narrowbody platforms. The company works with operators, lessors, MROs, and capital partners to cover short-term AOG situations through to multi-year operating leases. Its team carries over 50 years of combined industry experience, and its exclusive focus on APU commercial transactions gives it faster execution on lease transfers, novations, and off-market sourcing than full-service MRO-integrated lessors.
What sets them apart:
- APU-exclusive commercial focus covering Boeing and Airbus widebody and narrowbody platforms.
- Operating and short-term lease structures designed for AOG coverage, scheduled maintenance, and fleet transitions.
- Exchange and rotable programs for rapid AOG response with minimal downtime.
- TAT Piedmont
TAT Piedmont, a subsidiary of NASDAQ-listed TAT Technologies located in Kernersville, North Carolina, is a FAA and EASA dual-certified Part 145 repair station with nearly 60 years of APU MRO history. The facility holds Honeywell-authorized MRO status and operates lease bank programs covering the GTCP131 series for the Airbus A319/320/321 and Boeing 737, and the GTCP331-500 for the Boeing 777.
What sets them apart:
- FAA and EASA dual-certified Part 145 with Honeywell-authorized APU MRO status.
- Lease bank programs covering GTCP131 and GTCP331 series.
- NADCAP-certified with AS9110 Rev C and ISO 9001:2015 quality system.
How to Choose the Best Pratt & Whitney APU Lessor
Before executing any lease or exchange agreement, operators and MRO managers should verify:
- Model-specific inventory: Confirm the supplier holds the exact part number required — PW901A, PW901C, APS3200, and APS5000 are not interchangeable
- LLP limiter disclosure: Request the current limiter value and confirm it meets your fleet’s minimum acceptance criteria before committing to a lease term
- Documentation completeness: Every transaction should include a Certificate of Conformity, non-incident statement, unbroken trace to last operator or OEM source, and full AD compliance records
- Asset positioning: Confirm where the unit is physically located — for PW901 series models, the narrower supply pool makes geographic positioning especially consequential
- Quality system credentials: Verify the supplier operates under ASA-100 or an equivalent accredited system with counterfeit parts prevention protocols in place
Conclusion
The companies on this list represent a range of capabilities, from dedicated APU-only transaction specialists to large publicly traded lessors with broad fleet coverage. The right fit depends on the specific model required, acceptable LLP limiter value, lease term, and how quickly the unit needs to be positioned. Evaluating suppliers against the criteria above before engaging commercially will reduce documentation disputes and delivery risk on the back end.
Aero-Shield Capital is one of the few U.S.-based lessors with direct ownership across all four major Pratt & Whitney APU models. Operators and MROs with active sourcing requirements can reach the team directly to confirm current availability, limiter status, and positioning.
