Airworthiness Directive · Amendment 39-17488 · General Electric Company Turbofan Engines
General Electric Company Turbofan Engines
Superseded. A later AD replaced this one: AD 2013-14-51. Comply with the one in force.
General Electric Company (GE) GE90-110B1 and GE90-115B turbofan engines with a transfer gearbox assembly (TGB), part number 2115M33G07 or 2115M33G08, serial number (S/N) listed in Figure 1 to paragraph (c) of this AD, installed.
| FIA0HYRT | FIA0JGE8 | FIA0J3YC | FIA0JRTW |
| FIA0HV16 | FIA0JEH2 | FIA0JEH3 | FIA0K4M6 |
| FIA0J31V | FIA0JGE7 | FIA0JAVL | FIA0JN33 |
| FIA0H0R1 | FIA0JLAV | FIA0J70G | FIA0K7TV |
| FIA0J3YE | FIA0JLAY | FIA0HV18 | FIA0K56H |
| FIA0J1L0 | FIA0JGFC | FIA0J70E | FIA0K7TY |
| FIA0J3YF | FIA0JN31 | FIA0JGE9 | FIA0K7TW |
| FIA0J7FF | FIA0JN3Y | FIA0JLAW | FIA0K4M5 |
| FIA0J5LR | FIA0JGFF | FIA0H0R3 | FIA0K56G |
| FIA0J7FH | FIA0JN30 | FIA0JGE6 | FIA0JN32 |
| FIA0J7FC | FIA0J7Y9 | FIA0JT56 | FIAAV6M1 |
| FIA0J70A | FIA0JAVM | FIA0JT57 | FIA0K7T1 |
| FIA0J7Y8 | FIA0JGFA | FIA0J7FE | FIAAP6C4 |
| FIA0J7Y7 | FIA0JLAT | FIA0JT6K | FIA0K7T0 |
| FIA0J31W | FIA0JT58 | FIA0JT6L | FIAATMYA |
| FIA0J70C | FIA0K2H1 | FIA0JLAR | FIA0K56K |
| FIA0JAVH | FIA0HP4Y | FIA0JRT5 | FIAATH0T |
| FIA0J7FG | FIA0HV17 | FIA0JRT4 | FIA0K56J |
| FIA0J70F | FIA0HV19 | FIA0JT6J | FIAAPA8T |
| FIA0JAVK | FIA0HWG3 | FIA0K2H4 | FIAAVTMA |
| FIA0JEH4 | FIA0J3YG | FIA0JRTV | FIA0JRTY |
| FIA0J5LY | FIA0H0R0 | FIA0K2H2 | FIAAR7C0 |
| FIA0J5LT | FIA0HYRV | FIA0K2H3 | FIAARW1V |
| FIA0J5LW | FIA0H0R2 | FIA0K4M2 | FIA07PAN |
| FIA0JEH5 | FIA0J1LY | FIA0K4M4 | FIA06VPP |
| FIA0JAVJ | FIA0J31T | FIA0JT59 | F1A03RR4 |
| FIA0JGE5 | FIA0J1LW | FIA0K2H5 | FIA0JGFE |
| FIA0JEH6 | FIA0J5LV | FIA0K4M1 | FIA02N6R |
| FIA0JGEH | FIA0HYRR | FIA0K56L | |
| FIA0J1LV | FIA0J31R | FIA0K4M3 |
We are adopting a new airworthiness directive (AD) for all General Electric Company (GE) GE90-110B1 and GE90-115B turbofan engines. This emergency AD was sent previously to all known U.S. owners and operators of these engines. This AD prohibits operation of an airplane with affected transfer gearbox assemblies (TGBs) installed on both engines five days after the effective date of this AD. This AD was prompted by reports of two failures of TGBs which resulted in in-flight shutdowns (IFSDs). We are issuing this AD to prevent additional IFSDs of one or more engines, loss of thrust control, and damage to the airplane.
(1) Comply with this AD within the compliance time specified, unless already done.
(2) Before further flight, do not operate the airplane if more than one installed engine has a TGB S/N listed in Figure 1 to paragraph (c) of this AD.
