# SDR DALA2024032203664

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 14, 2024
- Submitted: March 22, 2024
- Operation: Air carrier
- Aircraft: [N595NW](https://openairdocs.org/aircraft/N595NW), registered now
- Make and model: Boeing 757351
- Aircraft serial: 32995
- Aircraft time: 70,858 hours, 23,164 cycles
- System (JASC): [4950 · APU Bleed Air System](https://openairdocs.org/jasc/4950)
- Part: Duct
- Part number: UNKNOWN
- Condition: Contaminated
- Location: Apu
- Stage of operation: AP
- How discovered: O
- Nature of condition: C, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2024032203664

## Discrepancy

SHIP 5815 ON APPROACH 6000-5000 FEET A MUSTY ODOR BECAME APPARENT IN THE FLIGHT DECK. ODOR PERSISTED UNTIL PARKED AT THE GATE W/ BLEED NOW ON APU. ODOR STILL PERSISTS.   R/R RECIRC FILTERS, FOUND OIL CONTAMINATION FROM IN APU BLEED DUCT, REMOVED CONTAMINATION. ALL NO GO PROCEDURES C/W.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.