# SDR ASAA2021102936450

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 29, 2021
- Submitted: November 2, 2021
- Operation: Air carrier
- Aircraft: [N516AS](https://openairdocs.org/aircraft/N516AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 39044
- Aircraft time: 46,970 hours, 14,022 cycles
- System (JASC): [2610 · Detection System](https://openairdocs.org/jasc/2610)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: NR
- How discovered: O
- Nature of condition: M
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021102936450

## Discrepancy

OVERHEAT B NOT WORKING ON ENG 1. GROUNDED - YES. (RESOLVED ON W/O: 1890094 TASKCARD: N/R-00001 ) PER B737-800 FIM 26-10 TASK 801 AND 805 BITE OF FIRE DET CTR MODULE SHOWS ENG 1, LOOP B OPEN OR DET FAULT. INSPECTED FIRE LOOPS. FOUND BROKEN LUG AT ENGINE FAN UPPER FIRE DETECTOR. REPAIRED LUG PER EA 800-26EA-23967 AND AMM 26-11-02-960-801. TWO MIG-51A INSTALLED/ REMOVED. FIRE DET MODULE BITE PASSES. FIRE WARNING TEST PASS. REPAIR/ GROUND VERIFICATION SUCCESSFUL. CLEARS MEL 26-2B. C/N 29021516 + PLACARD REMOVED.SEAMC WILL NOTIFIED.

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