# SDR ASAA2018060424885

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 31, 2018
- Submitted: June 4, 2018
- Operation: Air carrier
- Aircraft: [N564AS](https://openairdocs.org/aircraft/N564AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35103
- Aircraft time: 44,669 hours, 13,482 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Actuator
- Part number: 5416744
- Part serial: 1077235
- Condition: Failed
- Location: Rt Ram Air
- Part time: 10,771 hours, 3,204 cycles
- Stage of operation: NR
- 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/ASAA2018060424885

## Discrepancy

RIGHT PACK LIGHT ILLUMINATED DURING RECALL.   EXTINGUISHED WITH MASTER CAUTION RESET.  ACFT GROUNDED.  RIGHT PACK PRIMARY TEMP CONTROL SYSTEM INOPERATIVE.   CONFIRMED FAULT, NR 2 PACK - ZONE TEMP CONTROLLER BITE TESTED IAW AMM 21-61-00-700-806-002 SHOWS A HARD FAIL FOR THE RT RAM AIR INLET ACTUATOR.  REMOVED & REPLACED THE RT RAM AIR INLET ACTUATOR IAW AMM 21-51-21, OPS CHECKED NORMAL.

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