# SDR AALA20130703013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 3, 2013
- Submitted: July 5, 2013
- Operation: Air carrier
- Aircraft: [N595AA](https://openairdocs.org/aircraft/N595AA), registered now
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 53285
- Aircraft time: 67,533 hours, 28,930 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fmu
- Condition: Malfunctioned
- Location: Fire Warning
- Stage of operation: TO
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20130703013

## Discrepancy

MASTER WARNING LIGHT ILLUMINATED WITH CARGO FIRE LIGHT.  ALL THREE CARGO FIRE LIGHTS ILLUMINATED ON THE SDS PANEL.  EMERGENCY DECLARED FLIGHT RETURNED TUL LANDED WITHOUT INCIDENT.  REPLACED CARGO FIRE MAINTENANCE UNIT.  SYSTEM GROUND CHECKED NORMAL.

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