# SDR ASAA2013121712157

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 17, 2013
- Submitted: December 20, 2013
- Operation: Air carrier
- Aircraft: [N512AS](https://openairdocs.org/aircraft/N512AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 39043
- Aircraft time: 20,530 hours, 6,340 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Filter
- Condition: Dirty
- Location: Cabin Temp
- Stage of operation: TX
- 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/ASAA2013121712157

## Discrepancy

AFTER PUSH BACK RT PACK ILLUMINATED ON RECALL AND WILL EXTINGUISH ON MASTER CAUTION RESET.  ACFT GROUNDED.  PERFORMED BITE OF RT PACK/ZONE TEMP CONTROLLER, SHOWS TCV THIS PACK ON BIT AND PREVIOUS FLT ONLY, VERIFY GO.  RESET CONTROLLER, ALL 3 GO. INTERMITTENT FAULT REF FIM TASK 21-62, TASK 831.  ALSO FOUND ALL 3 CABIN TEMP SENSOR FILTERS VERY DIRTY. REPLACED IAW MM 21-61-06.  GROUND VERIFICATION SUCCESSFUL.

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