What was found
APPROXIMATELY 30 MINUTES AFTER TAKEOFF, FLIGHT EXPERIENCED A LOUD NOISE AND VIBRATION. AIRCRAFT RETURNED TO MIA. *S/D* FOUND LEFT PACK RAM AIR DOOR TORQUE TUBE ASSEMBLY (213W3130-3) SHAFT SHEARED. REPLACED TORQUE TUBE ASSEMBLY.
- Difficulty date
- September 5, 1998
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N770UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26925
- Engine
- Pwa PW4077
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Torque Tube
- Part number
- 213W31303
- Condition
- Sheared
- Location
- Lt Ram Air Door
- Part time
- 1,691 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.