What was found
AIRCRAFT WAS GROUNDED: DURING DESCENT, MUSTY SMELL IN FLIGHT DECK; ODOR DISSIPATED WITH LH RECIRCULATION FAN DEACTIVATED. REPLACED RECIRCULATION FAN AIR FILTER IAW AMM 21-25-01, OPS CHECK GOOD.
- Difficulty date
- August 25, 2021
- Submitted
- August 27, 2021
- Operation
- Air carrier
- Aircraft
- N846NN
- Make and model
- Boeing 737823
- Aircraft serial
- 31101
- Aircraft time
- 33,721 hours, 13,951 cycles
- System (JASC)
- 2120 · Air Distribution System
- Part
- Air Filter
- Condition
- Dirty
- Location
- Cabin Air
- Stage of operation
- DE
- How discovered
- O
- Nature of condition
- B
- Precautionary procedure
- H
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.