# SDR ASAA201912031489

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 2, 2019
- Submitted: December 4, 2019
- Operation: Air carrier
- Aircraft: [N514AS](https://openairdocs.org/aircraft/N514AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35193
- Aircraft time: 42,630 hours, 12,737 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Detector
- Part number: 902862
- Condition: Inoperative
- Location: #2 Engine
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA201912031489

## Discrepancy

#2 ENGINE FIRE DETECTOR B LOOP DOES NOT TEST. GROUNDED - YES. FIRE DETECTION CONTROL MODULE FAULTS #2 ENGINE LEFT CORE LOOP. #2 ENGINE LEFT CORE LOOP REMOVED AND REPLACED REF B737-800 AMM 26-11-00. OPERATIONAL CHECK GOOD AND NO FAULTS ON CONTROL MODULE. GROUND VERIFICATION SUCCESSFUL. THIS CLEARS MEL 26-2B.

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