# SDR DALA12006400855

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 3, 2012
- Submitted: September 6, 2012
- Operation: Air carrier
- Aircraft: N764NC
- Make and model: Doug DC-9-51
- Registry model: [Doug DC-9-51](https://openairdocs.org/model/mcdonnell-douglas-dc-9-51) (OpenAirDocs)
- Aircraft serial: 47717
- Aircraft time: 80,069 hours, 79,908 cycles
- System (JASC): [4930 · APU Engine Fuel and Control](https://openairdocs.org/jasc/4930)
- Part: O-Ring
- Condition: Damaged
- Location: Apu Fuel
- Stage of operation: TX
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA12006400855

## Discrepancy

FLIGHT CREW NOTED FUEL FUMES IN AIRCRAFT AFTER STARTING AND RUNNING THE APU.  ON INSPECTION, MAINTENANCE REPLACED THE O-RING AT THE ATOMIZER B-NUT AND PERFORMED A PNEUMATIC DUCT BURNOUT.  AIRCRAFT IS NOW OKAY FOR SERVICE.

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