What was found
EXCESSIVE COCKPIT NOISE. CLEANED ALL FLIGHT DECK DISTRIBUTION DUCTING IAW AMM. ACCOMPLISHED RIGHT RECIRC FAN CHECK RT RECIRC FAN CHECKS GOOD. FLIGHT DECK GROUND NOISE LEVEL CHECK IS OK.
- Difficulty date
- March 1, 2012
- Submitted
- March 29, 2012
- Operation
- Air carrier
- Aircraft
- N533UA
- Make and model
- Boeing 757222
- Aircraft serial
- 25073
- Aircraft time
- 68,865 hours, 25,339 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 2120 · Air Distribution System
- Part
- Duct
- Condition
- Dirty
- Location
- Cockpit
- Stage of operation
- NR
- 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.