GTCP131-9B : Auxiliary Power Unit for Business and Regional Aircraft

The GTCP131-9B is a compact auxiliary power unit developed to supply dependable electrical and pneumatic power for business and regional aircraft during ground operations.

Asset Portfolio

The GTCP131-9B supports avionics, cabin systems, and engine start functions while main engines remain off, helping operators maintain consistent system availability and controlled turnaround conditions.

GTCP131-9B Performance Characteristics
and Operational Use

Operators rely on the GTCP131-9B for stable output, predictable performance, and compatibility with multiple aircraft platforms. The GTCP131-9B provides continuous bleed air and electrical power that support environmental control and startup procedures. Its service-friendly configuration and proven durability make it suitable for routine operations across varied operating 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
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Frequently Asked Questions
Q: What are the key GTCP131-9B specs operators should know for 737 NG fleet planning?

A: The GTCP131-9B specs cover a single-shaft gas turbine design delivering electrical power and bleed air for cabin conditioning and main engine starting on the Boeing 737 NG. Full performance parameters are defined in the Honeywell component maintenance manual for part numbers 3800702-1 and 3800702-2.

A: The GTCP131-9B and GTCP131-9A carry different part numbers and are not interchangeable without confirming compatibility in the aircraft maintenance manual. Aero-Shield Capital carries both variants and can confirm which part number is correct for your specific aircraft serial number before any transaction is committed.

A: High-frequency short-haul operations increase cycle accumulation on the GTCP131-9B, accelerating LLP consumption and compressing intervals between shop visits. Operators should track CSN per unit against Honeywell-defined thresholds and plan exchange sourcing before limiter values approach minimum acceptance criteria.

A: Before committing to a GTCP131-9B overhaul, operators should assess remaining LLP life against projected shop cost. If the limiter is close to its threshold, sourcing a serviceable exchange unit through Aero-Shield Capital may deliver better value than a full shop induction on a unit with limited remaining life.

A: A qualified GTCP131-9B parts supplier should hold ASA-100 accreditation, maintain documented counterfeit parts prevention protocols, and provide full trace to OEM or last operator on every part, including FAA/EASA Form 8130-3, ATA 106 trace documentation, AD compliance records, and a non-incident statement. Aero-Shield Capital meets all of these standards.