# SDR 9500749997

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N8933E
- Make and model: Doug DC-9-31
- Registry model: [Doug DC-9-31](https://openairdocs.org/model/douglas-dc-9-31) (OpenAirDocs)
- Aircraft serial: 47142
- Engine: Pwa JT8D7
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Loop
- Condition: Malfunctioned
- Location: Rt Engine
- Stage of operation: DE
- Nature of condition: N
- Precautionary procedure: E, F
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9500749997

## Discrepancy

INBOUND TO MSN, THE NR 2 FIRE WARNING ILLUMINATED.  SYSTEM FAILED OPERATIONAL TEST OF THE SECONDARY LOOP.  PULLED THE FIRE HANDLE SHUTTING DOWN NR 2 AND DISCHARGED BOTH FIRE BOTTLES.  FOUND 'B' LOOP HAD MALFUNCTIONED.  PLACED THE 'B' LOOP ON MEL.  INSPECTED ENGINE FOR PNEUMATIC LEAKS.  NONE FOUND.  REPLACED THE FIRE BOTTLES.  ENGINE RUN-UP AND SYSTEM CHECKED OK.  AIRCRAFT RETURNED TO SERVICE.

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