# SDR ASAA2017080921599

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 9, 2017
- Submitted: August 11, 2017
- Operation: Air carrier
- Aircraft: [N577AS](https://openairdocs.org/aircraft/N577AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35186
- Aircraft time: 39,456 hours, 11,725 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Loop
- Condition: Malfunctioned
- Location: Fwd Cargo
- 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/ASAA2017080921599

## Discrepancy

DURING TEST, FWD CARGO FIRE TEST WOULD NOT ILLUMINATE. TRIED LOOP A AND B WITH SAME RESULT.  ACFT GROUNDED. RESET CARGO FIRE FWD DETECTION A & B CIRCUIT BREAKER IAW AMM 20-60-00. PERFORMED CARGO TEST, NO FAULTS. SYSTEM OPS NORMAL.

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