What was found
VERY HIGH COCKPIT NOISE LEVELS FROM PACK-RECIRC FAN. ACP'D CHECK OF RECIC FANS AND FILTERS. FANS AND FILTERS ARE CLEAN. ACP'D FLIGHT DECK GROUND NOISE LEVEL CHECK. FLIGHT DECK NOISE WAS BELOW LIMITS OF 70.5 DB.
- Difficulty date
- November 12, 2011
- Submitted
- December 8, 2011
- Operation
- Air carrier
- Aircraft
- N595UA
- Make and model
- Boeing 757222
- Aircraft serial
- 28748
- Aircraft time
- 53,964 hours, 15,084 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 2120 · Air Distribution System
- Part
- Unknown
- Condition
- Noisy
- Location
- Cockpit
- Stage of operation
- IN
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.