| 2014-12-52 | Honeywell International Inc. (Type Certificate Previously Held by AlliedSignal Inc.… | Jul 28, 2014 | Engine (TFE731-50R)Only with: Engines with LPT2 blades P/N 3075424-1, -2, or -3 installed. |
| 2012-17-05 | Honeywell International Inc. Turbofan Engines | Oct 2, 2012 | Engine (TFE731-50R)Only with: Applies only with specific first stage low-pressure turbine (LPT1) rotor assembly P/Ns installed: TFE731-5 with P/N 3075184-2, -3, or -4; TFE731-5AR/-5BR with P/N 3075447-1, -2, -4, 3075713-1, -2, -3, or 3074748-5; TFE731-4, -4R, -5AR, -5BR, -5R with P/N 3074748-4, -5, 3075447-1, -2, -4, 3075713-1, -2, or -3. |
| 2012-16-14 | Honeywell International Inc. Turbofan Engines | Oct 1, 2012 | Engine (TFE731-50R)Serial numbers per Table 4 of Honeywell Service Bulletin TFE731-72-5221, Revision 0. Only with: Engines listed in Table 4 of the SB, or with LPT2 rotor assembly P/N 3060608-2, -3, or -5 that had LPT2 rotor blades P/N 3075424-2 replaced between March 2009 and September 2010, or P/N 3075424-3 replaced between July 2010 and September 2010. |
| 2008-19-12 | Honeywell International Inc. TFE731-4, -4R, -5, -5AR, -5BR, and -5R Series Turbofan… | Oct 27, 2008 | Engine (TFE731-50R)Only with: Interstage turbine transition (ITT) duct P/N 3075292-1, 3075292-3, 3074766-1, 3077063-1, 3075655-1, 3075655-2, 3075699-1, or 3075699-3 installed. |