What was found
RUMBLING-VIBRATING NOISE ROW 19-24 IN THE FLOOR-UNUSUALLY LOUD. FOUND LEFT PACK FAN BYPASS CHECK VALVE FLEXIBLE ROUND CONNECTOR TORN AND PRODUCING NOISE. REPLACED FLEXIBLE ROUND CONNECTOR BOOT, ALL NOW OKAY.
- Difficulty date
- May 21, 2013
- Submitted
- June 28, 2013
- Operation
- Air carrier
- Aircraft
- N221UA
- Make and model
- Boeing 777222
- Aircraft serial
- 30552
- Aircraft time
- 50,230 hours, 6,241 cycles
- Engine
- Pwa PW40903
- System (JASC)
- 2197 · Air Conditioning System Wiring
- Part
- Boot
- Condition
- Torn
- Location
- Connector
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.