# SDR AALA20150107001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 6, 2015
- Submitted: January 9, 2015
- Operation: Air carrier
- Aircraft: [N949AN](https://openairdocs.org/aircraft/N949AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29537
- Aircraft time: 42,427 hours, 17,439 cycles
- System (JASC): [2613 · Overheat Detection](https://openairdocs.org/jasc/2613)
- Part: Control Unit
- Condition: Faulty
- Location: Overheat Detect
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20150107001

## Discrepancy

AIR INTERRUPT, RETURNED & EMER DECLARED.  LANDING UNEVENTFUL & ACFT WAS OVERWEIGHT.  DURING CLIMB LT WING & BODY OVERHEAT WARNING ILLUMINATED AT 9,000 FEET.  PERFORMED QRH PROCEDURE & LIGHT EXTINGUISHED IN ABOUT 3 MINUTES.  PERFORMED BITE OF WING & BODY HEAT CONTROLLER WITH FAULT CODE 14 RETURNED.  ACCOMPLISHED FIM TASK 12-18-00-810-802 WITH VOLTAGE DROP NOTED ON PINS 4 & 12 DURING STEP F3.  R & R OVERHEAT DETECTION CONTROL UNIT IAW AMM 26-18-01.  SYS CHECKED GOOD.

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