# SDR DXTA200803178

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 16, 2008
- Submitted: August 5, 2008
- Operation: Air carrier
- Aircraft: [N989QS](https://openairdocs.org/aircraft/N989QS), registered now
- Make and model: Cessna 750
- Registry model: [Cessna 750](https://openairdocs.org/model/cessna-750) (OpenAirDocs)
- Aircraft serial: 7500089
- Engine: Allsn AE3007A
- System (JASC): [7500 · Engine Bleed Air System](https://openairdocs.org/jasc/7500)
- Part: Seal
- Condition: Failed
- Location: Pylon Bleed
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA200803178

## Discrepancy

PYLON BLEED LEAK (R) ILLUMINATED ON FINAL APPROACH AND AGAIN ON THE GROUND.  THERE IS ALSO A BURNING ODOR IN THE CABIN.   OPENED COWL,  INSPECTED LOW PRESSURE LINE & HIGH PRESSURE LINE & DETERMINED THAT THE SEALS HAVE COLLAPSED ALLOWING BLEED AIR TO ENTER THE PYLON.  INSTALLED 6 SEALS TO THE ENGINE ANTI-ICE PLUMBING PER MM 12-10-01. RAN ENGINES FOR OPS CHECK & LEAK CHECK. GOOD. REINSTALL ALL PANELS REMOVED.

---
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.