# SDR ASAA2018021823691

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 18, 2018
- Submitted: February 26, 2018
- Operation: Air carrier
- Aircraft: [N528AS](https://openairdocs.org/aircraft/N528AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35695
- Aircraft time: 31,914 hours, 10,870 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Drain
- Condition: Dirty
- Location: Apu
- Stage of operation: TO
- 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/ASAA2018021823691

## Discrepancy

DIRTY SOCKS ODOR DURING TAKEOFF & LANDING.  ACFT GROUNDED.  PERFORMED CONDITIONAL INSPECTION IAW AMM 05-51-56, AND  FIM 05-51, TASK 814.   PERFORMED APU DRAIN MAST INSPECTION IAW AMM 49-16-11,  FOUND THE MIDDLE DRAIN FOR THE LOAD COMPRESSOR SEAL TO BE WET.  RAN BOTH ENGINES AND BOTH A/C PACKS,  NO FURTHER OODRS DETECTED.  APU EXHAUST AND TAILCONE INSPECTION NORMAL.  REMOVED & REPLACED THE APU IAW AMM 49-11-00, & T/C 78349010.  OPERATED PACKS, NO ODORS NOTED.

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