# SDR ASAA2017013019599

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 30, 2017
- Submitted: February 3, 2017
- Operation: Air carrier
- Aircraft: [N519AS](https://openairdocs.org/aircraft/N519AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36482
- Aircraft time: 30,722 hours, 9,213 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Actuator
- Part number: 5416744
- Part serial: 187307
- Condition: Faulted
- Location: Ram Air Exhaust
- Part time: 53,656 hours, 27,676 cycles
- Stage of operation: NR
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017013019599

## Discrepancy

LEFT PACK LIGHT ON RECALL,  RESETS WHEN MASTER CAUTION PRESSED.  ACFT GROUNDED. LT PACK ZONE TEMPERATURE CONTROLLER BITE SHOWS LT RAM AIR ACTUATOR FAULT.  REMOVED & REPLACED LEFT RAM AIR ACTUATOR IAW AMM 21-51-21, GROUND FUNCTIONAL CHECKED NORMAL IAW AMM 21-61-00-700-806-002.

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