# SDR ASAA2021042934712

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 29, 2021
- Submitted: May 3, 2021
- Operation: Air carrier
- Aircraft: [N516AS](https://openairdocs.org/aircraft/N516AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 39044
- Aircraft time: 44,993 hours, 13,523 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Actuator
- Part number: 5416744
- Part serial: 8946
- Condition: Failed
- Location: Rt Ram Air Inlet
- Part time: 59,346 hours, 28,087 cycles
- Stage of operation: NR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021042934712

## Discrepancy

RIGHT PACK LIGHT ILLUMINATES ON MASTER CAUTION RECALL, GOES OUT WITH MASTER CAUTION RESET. GROUNDED - YES. PERFORMED RH PACK TEMP CONTROL BITE PROCEDURE PER B737-800 FIM 21-62 TASK 801. HARD FAULT FOUND FOR RAM AIR ACTR PER FIM 21-62 TASK 836. REPLACED RH RAM AIR ACTUATOR PER B737-800 AMM 21-51-21. OPS TEST OF RH ACTUATOR GOOD AND NO FAULTS FOUND WHEN BITE TEST PERFORMED.

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