FlightFinder

JT9D Engine

Pratt & Whitney · turbofan · 1,449 engine-system SDR reports · 6 ADs

46,300–56,000 lbfThrust
1966First Run
Out of productionStatus
First high-bypass turbofan on the 747.Note

Reported engine systems (FAA SDR)

  • Engine - Turbine/Turboprop878 (60.6%)
  • Engine Fuel & Control173 (11.9%)
  • Engine Exhaust96 (6.6%)
  • Engine Air95 (6.6%)
  • Engine Indicating59 (4.1%)
  • Engine Oil54 (3.7%)
  • Power Plant38 (2.6%)
  • Engine Controls30 (2.1%)
  • Starting23 (1.6%)
  • Ignition3 (0.2%)

Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).

Airworthiness directives

  • 2021-08327: Airworthiness Directives; Pratt & Whitney Turbofan Engines (2021-04-22)
  • 2012-6952: Airworthiness Directives; Pratt & Whitney (PW)Turbofan Engines (2012-03-23)
  • 2012-6504: Airworthiness Directives; Pratt & Whitney Turbofan Engines (2012-03-19)
  • 2011-31342: Airworthiness Directives; Pratt & Whitney Corp. (PW) JT9D-7R4H1 Turbofan Engines (2011-12-12)
  • 2010-2601: Airworthiness Directives; Airbus Model A310-221, -222, -322, -324, and -325 Airplanes, and Model A300 B4-620, B4-622, B4-622R, and F4-622R Airplanes, Equipped With Pratt & Whitney PW4000 or JT9D-7R4 Series Engines (2010-02-12)
  • E9-31363: Airworthiness Directives; The Boeing Company Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747SR, and 747SP Series Airplanes Equipped With General Electric CF6-45 or -50 Series Engines, or Equipped With Pratt & Whitney JT9D-3 or -7 (Excluding -70) Series Engines (2010-01-20)

Occurrences naming this engine

9 occurrences, 1 fatal, 4 fatalities.

Engine-failure occurrences on aircraft using this engine

71 occurrences, 1 fatal, 2 fatalities.

These occurrences are engine-failure events on aircraft families that can be fitted with this engine; the engine type of each specific aircraft is not confirmed. Do not read this list as a record for this engine.

Applications