Pratt & Whitney PW4000
294 US-registered aircraft fly this program — 696 installed engines across 12 registry codes
Program snapshot(US registry)
12 registry engine codes aggregated
44 aircraft flying the PW4000 left the US registry and stayed domestic since 2023 — a teardown proxy, not confirmed part-outs — at an average age of 30.7 years. 7 more were exported and left the US fleet intact.
FAA registry data, US-registered aircraft only. Deregs = domestic deregistrations — a teardown proxy that also captures re-registrations and some unflagged exports, never a confirmed part-out count. Median build year is a tails-weighted median of per-variant medians (≈). 149 of 294 active tails are registered under generic series codes rather than a specific variant, so per-variant splits are partial.
Registry codes under this program
FAA registry — as registered, variants + generic series rows
| Engine model | Active tails | Engine units | Median build yr | Deregs since ’23 | Exported | Avg age at dereg |
|---|---|---|---|---|---|---|
| PW4000 seriesgeneric code | 149 | 329 | 1997 | 23 | 2 | 30 yr |
| PW4158 | 65 | 130 | 2002 | 4 | 0 | 29 yr |
| PW4056 | 25 | 102 | 1997 | 1 | 0 | 30 yr |
| PW4060 | 14 | 28 | 1992 | 0 | 4 | 24.5 yr |
| PW4168A | 12 | 27 | 2007 | 1 | 0 | 24 yr |
| PW4460 | 10 | 30 | 1992 | 4 | 0 | 33.5 yr |
| PW4462 | 8 | 24 | 1992 | 8 | 0 | 31 yr |
| PW4062 | 6 | 12 | 2016 | 0 | 1 | 24 yr |
| PW4090 | 2 | 4 | 1999 | 0 | 0 | — |
| PW4062A | 2 | 8 | 2003 | 0 | 0 | — |
| PW4052 | 1 | 2 | 1999 | 0 | 0 | — |
| PW4152 | 0 | 0 | — | 3 | 0 | 36.7 yr |
Counts reflect the engine model exactly as registered. Registry-wide, roughly 57% of engine records name a specific variant; the rest carry generic series codes, so generic rows coexist with variant rows and per-variant figures are partial. Deregs = domestic deregistrations (a teardown proxy, not confirmed part-outs); exported aircraft left the US fleet intact.
Airframe applications
FAA registry + BTS T-100 family rollups
| Family | Tails on this program | Family US fleet | Avg fleet age | Built 15+ yrs ago | Avg cycles / yr |
|---|---|---|---|---|---|
| 767 | 79 | 565 | 21 yr | 323 | 477 |
| A300 | 65 | 120 | 27.4 yr | 118 | 473 |
| 777 | 49 | 288 | 21.1 yr | 170 | 383 |
| 747 | 33 | 191 | 22.7 yr | 116 | 266 |
| A330 | 32 | 160 | 12.4 yr | 54 | 412 |
| MD-11 | 28 | 108 | 32.1 yr | 96 | 243 |
“Tails on this program” counts US-registered aircraft the registry rollup maps to both the family and a PW4000 engine code — an undercount, since not every tail resolves to a family. Family fleet, age, and cycles columns describe the WHOLE family across every engine option, not just PW4000-powered aircraft (cycles from BTS T-100, 2025).
Airworthiness Directive activity
FAA / EASA public regulatory data
- FAA AD 2026-09-02effective Jun 26, 2026Prohibition
The FAA is adopting a new airworthiness directive (AD) for certain Pratt & Whitney RTX Corporation (PW) Model PW4074, PW4074D, PW4077, PW4077D, PW4084D, PW4090, and PW4090-3 engines. This AD was prompted by an analysis of an event involving an International Aero Engines, LLC (IAE LLC) Model PW1127GA-JM engine, which experienced a high-pressure compressor (HPC) 7th-stage integrally bladed rotor (IBR- 7) separation that resulted in an aborted takeoff. This AD requires repetitive angle ultrasonic scan inspections (AUSIs) of the HPC 15th- stage disks, front turbine hubs, high pressure turbine (HPT) 1st-stage air seals, and HPT 2nd-stage hubs for crack indications, and removal from service and replacement if necessary, and for certain serial numbers, removal from service and replacement of the HPT 1st-stage air seal. The FAA is issuing this AD to address the unsafe condition on these products.
- FAA AD 2023-22-02effective Dec 26, 2023Mixed actions
The FAA is superseding Airworthiness Directive (AD) 2018-02- 10, which applied to certain Pratt & Whitney Division (PW) Model PW4074, PW4074D, PW4077, PW4077D, PW4084D, PW4090, and PW4090-3 engines. AD 2018-02-10 required performing repetitive fluorescent penetrant inspections (FPIs) to detect cracks in the outer diffuser case (ODC), removal of any ODC that fails inspection, and updating the mandatory inspections in the Airworthiness Limitations Section (ALS) of the Instructions for Continued Airworthiness (ICA). Since the FAA issued AD 2018-02-10, PW developed a modification to reduce the susceptibility of ODC cracking. This AD retains the ALS update requirement from AD 2018-02-10, requires replacing certain ODC part numbers with parts eligible for installation, expands the applicability to all ODC part numbers, and adjusts the compliance threshold of the FPIs of the ODC. The FAA is issuing this AD to address the unsafe condition on these products.
- FAA AD 2023-19-02effective Nov 7, 2023Prohibition
The FAA is superseding Airworthiness Directive (AD) 2018-21- 11, which applied to all Pratt & Whitney Division (PW) Model PW4074D, PW4077D, PW4084D, PW4090, and PW4090-3 engines with a low-pressure compressor (LPC) fan hub, part number (P/N) 51B821 or P/N 52B521, installed. AD 2018-21-11 required performing repetitive eddy current inspections (ECIs) and fluorescent penetrant inspections (FPIs) for cracks in certain LPC fan hubs and removing LPC fan hubs from service that fail any inspection. Since the FAA issued AD 2018-21-11, the FAA determined that affected LPC fan hub assemblies can meet the published certificated life limit without the need for the required repetitive FPI inspections in AD 2018-21-11, and the repetitive ECI inspections require shortened intervals. Based on a report of another incident, the FAA determined that the unsafe condition is likely to exist or develop on additional LPC fan hub assemblies and PW model engines. This AD expands the applicability to include Model PW4074, PW4074D, PW4077, PW4077D, PW4084D, PW4090, and PW4090-3 engines with any part number LPC fan hub assembly installed and requires performing repetitive ECIs of the LPC fan hub assembly and, depending on the results of the inspections, removing the LPC fan hub assembly from service. The FAA is issuing this AD to address the unsafe condition on these products.
- FAA AD 2022-12-12effective Jul 5, 2022Mixed actions
The FAA is adopting a new airworthiness directive (AD) for certain Pratt & Whitney Division (PW) PW4062 model turbofan engines. This AD was prompted by a report of a manufacturing quality escape due to insufficient cooling of the low-pressure turbine (LPT) stage 5 air seal resulting in a reduction of the low-cycle fatigue (LCF) life limit. This AD requires removal and replacement of the LPT stage 5 air seal with a part eligible for installation. The FAA is issuing this AD to address the unsafe condition on these products.
- FAA AD 2022-07-13effective May 2, 2022Mixed actions
The FAA is adopting a new airworthiness directive (AD) for all Pratt & Whitney Division (PW) PW4074, PW4074D, PW4077, PW4077D, PW4084D, PW4090, and PW4090-3 model turbofan engines. This AD was prompted by an in-flight shutdown (IFSD) of an engine due to an air/oil heat exchanger leak caused by corrosion and subsequent investigation by the manufacturer that revealed additional air/oil heat exchanger leaks. This AD requires an inspection of the air/oil heat exchanger and, depending on the results of the inspection, replacement of the air/oil heat exchanger. This AD also provides instructions for storing an air/ oil heat exchanger after inspection. The FAA is issuing this AD to address the unsafe condition on these products.
Directives in the FAA / EASA corpus we have processed whose text names PW4000 engine models — not a complete historical AD list, and text matching can include airframe directives that reference the engine. An AD is a compliance requirement that drives scheduled work on a regulator's clock — a regulatory compliance signal, not a failure prediction, and no comment on this engine's reliability.