What was found
LOUD VIBRATION ON CLIMBOUT. RETURNED TO LHR. PRELIMINARY INVESTIGATION AT LHR FOUND DAMAGED LEFT PACK RAM DOOR. *S/D* FOUND LT PACK RAM AIR INLET DOOR TORQUE TUBE ASSY (213W3130-3) SHAFT SHEARED. REPLACED TORQUE TUBE ASSY.
- Difficulty date
- July 20, 1998
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N774UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26936
- Engine
- Pwa PW4077
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Torque Tube
- Part number
- 213W31303
- Condition
- Sheared
- Location
- Lt Ram Air Door
- Part time
- 2,585 hours
- Stage of operation
- CL
- Nature of condition
- E
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.