# SDR AALA202303135124

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 7, 2023
- Submitted: March 13, 2023
- Operation: Air carrier
- Aircraft: [N136AN](https://openairdocs.org/aircraft/N136AN), registered now
- Make and model: Airbus A320*
- Aircraft serial: 6532
- Aircraft time: 23,248 hours, 9,127 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: O-Ring
- Condition: Leaking
- Location: Zone 100 - Fuse
- Stage of operation: UK
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202303135124

## Discrepancy

AIRCRAFT WAS GROUNDED: ALL 4 FLIGHT ATTENDANTS (INBOUND) REPORTED FUMES LAST 15 MINUTES OF INBOUND FLIGHT (SMELL OF SOCKS) WITH SINUS AND THROAT IRRITATION. MAINTENANCE FOUND THE APU OIL COOLING FAN O-RING LEAKING AND REPLACED IT PER AMM 49-52-51.

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