# SDR ASAA2020101333347

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 13, 2020
- Submitted: October 15, 2020
- Operation: Air carrier
- Aircraft: [N453AS](https://openairdocs.org/aircraft/N453AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36354
- Aircraft time: 25,871 hours, 8,237 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Actuator
- Part number: 676000141
- Part serial: 676000148441
- Condition: Inoperative
- Location: Lt Ram Air
- Part time: 11,289 hours, 3,440 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/ASAA2020101333347

## Discrepancy

HAD A LEFT PACK LIGHT ILLUMINATED AT CRUISE, RAN THE CHECKLIST & PUSHED THE TRIP RESET AND THE LIGHT EXTINGUISHED.  RESET SEVERAL TIMES.  GROUNDED-YES.  REMOVED AND REPLACE LT PACK SMART RAM AIR ACUATOR AFT.  OPERATIONS CHECKS GOOD, ACCOMPLISHED BITE CHECK, NO FAULTS NOTED.

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