What was found
WITH BOTH PACKS ON LOUD RUMBLE AND VIBRATION HEARD AND FELT IN FIRST CLASS. REPLACED EQUIPMENT COOLING OVERBOARD AIR SHUTOFF (MOTOR OPERATED) EXHAUST VALVE. NO RE-OCURRENCE OF THIS PROBLEM NOTED SINCE THEN.
- Difficulty date
- October 13, 2006
- Submitted
- October 24, 2006
- Operation
- Air carrier
- Aircraft
- N596UA
- Make and model
- Boeing 757222
- Aircraft serial
- 28749
- Aircraft time
- 34,329 hours, 9,464 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- A/C Pack
- Condition
- Vibration
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- E
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.