# SDR UPS07M51299

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 15, 2007
- Submitted: December 17, 2007
- Operation: Air carrier
- Aircraft: [N284UP](https://openairdocs.org/aircraft/N284UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48541
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Loop
- Condition: Inoperative
- Location: Nr 1 Nacelle
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS07M51299

## Discrepancy

ATB-IFSD--DURING CLIMB-OUT AT FLT LEVEL 200; ENGINE 1 FIRE INDICATION AURAL WARNINGS SOUNDED.  FIRE HANDLE RED LIGHT DID NOT ILLUMINATE.  NO MASTER WARNING ANNUNCIATION.  FIRE MSG ON EAD.  ATB TO PHL - IFSD OF NR 1 ENGINE.  REMOVED AND REPLACED NR 1 ENGINE FIRE LOOP WIRING IAW MM CH 20 STD PRACTICES.  REF LT T/R ELEC HARNESS WIRES 148001 THRU 148004 - 16BL AND 16RD ACCOMPLISHED ALL FIRE DET TESTS IAW 26-11-02-5 CKS NORMAL.

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