# SDR NACA201903270031

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 25, 2019
- Submitted: March 27, 2019
- Operation: Air carrier
- Aircraft: N401YK
- Make and model: Boeing 737436
- Aircraft serial: 25860
- Aircraft time: 56,438 hours, 35,417 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/NACA201903270031

## Discrepancy

FIRE WARNING, MASTER CAUTION LIGHT & BELL ACTIVATED FOR APPROXIMATELY 1 SECOND THEN SELF CLEARED. FIRE WARN/MASTER CAUTION LIGHT & BELL ACTIVATED UNTIL CANCELLED. UPON RECALL, FIRE WARN REMAINS OFF, MASTER CAUTION ILLUMINATES.  PERFORMED AMM 26-11-00 ON THE ENGINE FIRE DETECTION SYSTEM.  TESTED NORMAL.  PERFORMED AMM 30-31-00 ON THE PITOT STATIC TUBES, ALPHA VANE, TEMP PROBE ALL TEST NORMAL.

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