# SDR ASAA2017102922350

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 29, 2017
- Submitted: November 6, 2017
- Operation: Air carrier
- Aircraft: [N518AS](https://openairdocs.org/aircraft/N518AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35693
- Aircraft time: 33,554 hours, 9,980 cycles
- System (JASC): [2697 · Fire Protection System Wiring](https://openairdocs.org/jasc/2697)
- Part: Terminal
- Part number: 00000
- Condition: Dirty
- Location: Fire Loop
- 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/ASAA2017102922350

## Discrepancy

DURING OVERHEAT, & FIRE TEST,  NR 2 ENGINE FIRE WARNING SWITCH AND THE NR 2 OVERHEAT LIGHT DO NOT ILLUMINATE. ACFT GROUNDED.   PERFORMED ENGINE FIRE DETECTION SYSTEM OPS TEST IAW AMM 26-11-00-710-801. NO FAULTS FOUND. ACCESSED NR 2 ENGINE FIRE DETECTOR LOOPS. PERFORMED ENGINE FIRE DETECTOR INSPECTION IAW AMM 26-11-01-211-801.  FOUND LOWER FAN FIRE LOOP TERMINALS VERY DIRTY AND OILY.  DISSASSEMBLED, CLEANED AND REINSTALLED ALL FIRE DETECTOR TERMINALS. NO OTHER DEFECTS NOTED. OPS TESTED GOOD.

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