# SDR ASAA2013011693691

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 16, 2013
- Submitted: January 18, 2013
- Operation: Air carrier
- Aircraft: [N537AS](https://openairdocs.org/aircraft/N537AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35204
- Aircraft time: 3,931 hours, 1,197 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Control Valve
- Condition: Malfunctioned
- Location: Lt A/C Pack
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2013011693691

## Discrepancy

ON RECALL, DURING LANDING CHECK, LT PACK LIGHT ILLUMINATED, EXTINGUISHED WITH RESET.  PERFORMED LT PACK TEMP CONTROLLER BITE CK, REF FIM 21-62, TASK 801.  LOGGED TCV FAULT LAST FLT NO HISTORY LAST 60 DAYS.  PERFORMED FIM 21-62, TASK 830 TCV FAULT ISOLATION & FAULT CLEARED GROUND FUNCTIONAL TEST PASSED.  ACFT OK FOR ETOPS SERVICE.

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