# SDR ASAA2017102122265

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 21, 2017
- Submitted: October 23, 2017
- Operation: Air carrier
- Aircraft: [N562AS](https://openairdocs.org/aircraft/N562AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35091
- Aircraft time: 42,578 hours, 12,674 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Actuator
- Part number: 5416744
- Part serial: 197950
- Condition: Failed
- Location: Lt Ram Air
- Part time: 57,137 hours, 29,104 cycles
- Stage of operation: CR
- 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/ASAA2017102122265

## Discrepancy

RAM AIR DOOR FULL OPEN LIGHT ILLUMINATED ON LEFT PACK THE ENTIRE FLIGHT.  NO PACK ISSUES NOTED.  ACFT GROUNDED.   TESTED THE LEFT RAM AIR SYSTEM AND FOUND ACTUATOR FAILING TO EXTEND THE FULL LIMIT.  REMOVED AND REPLACED RAM AIR INLET ACTUATOR IAW AMM 21-51-21.  GROUND VERIFICATION TEST SUCCESSFUL.

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