What was found
AIRCRAFT WAS GROUNDED: DIRTY SOCK SMELL WITH APU BLEED ON. REPLACED APU OIL COOLING FAN AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK PER AMM 49-52-51.
- Difficulty date
- November 1, 2021
- Submitted
- November 10, 2021
- Operation
- Air carrier
- Aircraft
- N552UW
- Make and model
- Airbus A321231
- Aircraft serial
- 4957
- Aircraft time
- 32,300 hours, 12,124 cycles
- System (JASC)
- 4990 · APU Oil System
- Part
- Cooling Fan
- Part number
- 361614011
- Part serial
- P1669C
- Condition
- Leaking
- Location
- Apu
- Component
- Apu · Hnywl · 1319A
- Component part number
- 38007081
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- K, B
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.