# SDR AALA201709289025

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 2, 2016
- Submitted: September 28, 2017
- Operation: Air carrier
- Aircraft: [N818NN](https://openairdocs.org/aircraft/N818NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 30910
- Aircraft time: 22,111 hours, 8,654 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Apu
- Part number: 351A10001
- Part serial: P8771
- Condition: Odor
- Part time: 4,826 hours, 1,956 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201709289025

## Discrepancy

AIRCRAFT WAS GROUNDED. DURING TAXI AND CLIMB A MODERATE DIRTY SOCK ODOR WAS REPORTED.  REMOVED AND REPLACED THE APU IAW AMM 49-94-11.

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