# SDR CALA9901042

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 7, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N77012](https://openairdocs.org/aircraft/N77012), registered now
- Make and model: Boeing 777224
- Aircraft serial: 29860
- Engine: Ge GE9092B
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Failed
- Location: Nr 1
- Stage of operation: DE
- Nature of condition: X, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA9901042

## Discrepancy

NR 1 ENG FLAME-OUT ON DESCENT, ENG RESTART UNSUCCESSFUL.  MX R & R THE HMU & EEC.  ENG BOROSCOPE WAS PERFORMED, NO TROUBLE FOUND.  FUEL STRAINER & MAIN FUEL FILTER REMOVED & INSPECTED, CHECKED GOOD.  A FUEL SAMPLE SUBMITTED TO BOEING.  TEST FLIGHT WAS CONDUCTED.  FUEL SAMPLE ANALYSIS DID NOT DISCLOSE ANY ABNORMALITIES.  HMU WAS TESTED & DISASSEMBLED AT THE VENDOR FACILITY & NO DISCREPANCIES FOUND.  EEC WAS SENT TO THE VENDOR FOR TESTING & RETRIEVAL OF NVM, NO DISCREPANCIES NOTED.  THE QAR/ACMF DATA WAS STUDIED IN DETAIL WITH INCONCLUSIVE RESULTS.  THE CAUSE FOR DISCREPANCY IS NOT UNDERSTOOD. BOEING IS CONSIDERING ADDING ADDITIONAL SIGNALS TO THE DFDR AND QAR SYSTEMS.

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