# SDR ASAA2019021528204

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 15, 2019
- Submitted: February 20, 2019
- Operation: Air carrier
- Aircraft: [N566AS](https://openairdocs.org/aircraft/N566AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35182
- Aircraft time: 46,321 hours, 13,859 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Loop
- Part number: 90201601
- Condition: Failed
- Location: Nr 2 Engine
- Stage of operation: TX
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019021528204

## Discrepancy

NR 2 ENGINE FAILS OVHT/FIRE TEST TESTED BOTH SIDES AND SIDE B FAILS. GROUNDED - YES. TESTED NR 2 ENGINE FIRE DET, NO FAULTS AND BOTH A & B SYS OP'S NORMAL. PER TECH SERVICES REQUEST REMOVED & REPLACED LOWER FAN FIRE DETECTOR LOOP PER AMM 26-11-01-000-802/26-11-01-400-802 AND FAN HARNESS PER AMM REF 26-11-02-000-801/26-11-02-400-801. OP'S CK'S GOOD. ETOPS GROUND VERIFICATION OPS NORMAL. THIS CLEARS MEL 26-2B.

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