# SDR DALA13006899263

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 7, 2013
- Submitted: February 12, 2013
- Operation: Air carrier
- Aircraft: [N963DN](https://openairdocs.org/aircraft/N963DN), registered now
- Make and model: Doug MD-90-30
- Registry model: [Doug MD-90-30](https://openairdocs.org/model/mcdonnell-douglas-md-90-30) (OpenAirDocs)
- Aircraft serial: 53533
- Aircraft time: 38,318 hours, 21,891 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: B-Nut
- Condition: Leaking
- Location: Hyd System
- Stage of operation: NR
- How discovered: 9
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA13006899263

## Discrepancy

STRONG EXHAUST TYPE ODOR REPORTED BY F/A.  TURNED OFF RT PACK, ODOR DISSIPATED.  MX REMOVED AFT STAIRWELL PANELS AND FOUND LOOSE B-NUT AND HYD FLUID LEAKING FROM BLEED VALVE FORWARD OF HYD CONTROL VALVE, LT SIDE OF STAIRWELL.  TIGHTENED B-NUT AND LEAK CHECKED.  CHECKED GOOD.  FOUND HYDRAULIC FLUID CONTAMINATION IN APU INLET.  PERFORMED APU DUCT BURNOUT.  OPS CHECKED NORMAL.  STAIRWELL PANELS REINSTALLED.

---
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.