What was found
STRONG DIRTY SOCK ODOR NOTICED IN THE COCKPIT WHILE DESCENDING FROM 9000 TO 4000 FT. REMOVED AND REPLACED THE FOULED CABIN RECIRCULATION FILTERS IAW AMM 21-25-01. OPS CHECKED GOOD.
- Difficulty date
- October 7, 2017
- Submitted
- October 10, 2017
- Operation
- Air carrier
- Aircraft
- N972NN
- Make and model
- Boeing 737823
- Aircraft serial
- 33334
- Aircraft time
- 7,629 hours, 3,008 cycles
- System (JASC)
- 2120 · Air Distribution System
- Part
- Filter
- Part number
- P199753
- Condition
- Dirty
- Location
- Recirculation
- Stage of operation
- DE
- How discovered
- O
- Nature of condition
- B
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.