# SDR ASAA2019070129906

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 1, 2019
- Submitted: July 23, 2019
- Operation: Air carrier
- Aircraft: [N587AS](https://openairdocs.org/aircraft/N587AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35684
- Aircraft time: 45,039 hours, 13,093 cycles
- System (JASC): [2697 · Fire Protection System Wiring](https://openairdocs.org/jasc/2697)
- Part: Wire
- Condition: Broken
- Location: Nr 1 Engine
- Stage of operation: TX
- 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/ASAA2019070129906

## Discrepancy

#1 ENG "A" LOOP INTERMITTENTLY INOP. PRIOR TO TAXI #1 FIRE HANDLE DID NOT ILLUMINATE DURING TEST. AFTER TAXI TEST WAS NORMAL. GROUNDED - YES. WHILE PERFORMING GVI OF CORE FIRE DETECTION HARNESS MW0325 FOUND BROKEN WIRE AT HEAT DETECTOR M1759 REF WDM 26-11-11 PG 1. RETERMINATED 1 EA BROKEN LUG REF AMM 26-11-02-960-801. ACCOMPLISHED ENGINE FIRE DETECTION OPERATIONAL TEST REF AMM 26-11-00-710-801. OPS CK GOOD.

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