# SDR FDEA201201190271

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 19, 2012
- Submitted: January 19, 2012
- Operation: Air carrier
- Aircraft: N495FE
- Make and model: Boeing 727227
- Aircraft serial: 21669
- Aircraft time: 39,928 hours, 28,056 cycles
- System (JASC): [2613 · Overheat Detection](https://openairdocs.org/jasc/2613)
- Part: Controller
- Part number: 65249201
- Part serial: 650101
- Condition: Malfunctioned
- Location: Overheat System
- Stage of operation: TX
- How discovered: O
- Nature of condition: N
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA201201190271

## Discrepancy

PRIOR TO TAKEOFF,  WHEEL WELL FIRE LIGHT AND BELL CAME ON INTERMITTENTLY APPROX 5 TIMES.  AFTER WHICH WHEEL WELL FIRE WARNING WOULD NOT TEST.  CHECKED MLG WW WIRING & SENSING ELEMENTS IAW WDM 26-12-01 & MM 26-12-001, ALL CHECKED GOOD.  POWER & GROUND TO FIRE & OVERHEAT CONTROLLER UNIT M113 ALSO CHECKED GOOD.  R & R FIRE & OVERHEAT DETECTOR CONTROLLER UNIT M113 IAW MM 20-10-017-2.  FIRE & OVERHEAT DET SYS CHECKED GOOD REF 26-12-001-5.

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