# SDR ASAA2017080421536

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 4, 2017
- Submitted: August 7, 2017
- Operation: Air carrier
- Aircraft: [N560AS](https://openairdocs.org/aircraft/N560AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35179
- Aircraft time: 42,044 hours, 12,674 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Detector
- Part number: 902864
- Condition: Faulted
- Location: Nr 2 Nacelle
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017080421536

## Discrepancy

WHILE ACCOMPLISHING ENGINE/APU FIRE DETECTION CONTROL MODULE BITE TEST. NR 2 ENGINE FAULTED UPPER FAN B LOOP.  ACFT GROUNDED. REMOVED AND REPLACED NR 2 ENGINE UPPER FAN FIRE DETECTOR ASSEMBLY IAW AMM 26-11-01. GROUND VERIFICATION TEST PASSED IAW AMM 26-11-00-710-801. NR 2 ENG DETECTOR SWITCH RETURNED TO NORMAL CONFIGURATION.

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