# SDR ASAA2022011537152

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 15, 2022
- Submitted: January 19, 2022
- Operation: Air carrier
- Aircraft: [N579AS](https://openairdocs.org/aircraft/N579AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35187
- Aircraft time: 54,204 hours, 15,945 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: NR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022011537152

## Discrepancy

R PACK LT ILLUMINATED ON RECALL. GROUNDED - YES. C/W BITE PROCEDURE B737-800 FIM 21-62-TASK 801 FOR LEFT AND RIGHT PACK / ZONE TEMPERATURE CONTROLLERS, R PACK TCV LIGHT ON PREV FLT, GREEN ON VERIFY AND RESET. C/W FIM 21-62 TASK 831 RIGHT PZTC-2 RESET. FOUND DIRTY CABIN SENSOR FILTERS, REPLACED FILTERS & PERFORMED CABIN TEMPERATURE CONTROL AND INDICATION TEST REF B737-800 AMM TASK 21-61-00-700-807-002. OPS TEST GOOD. PACK LIGHT DOESN'T ILLUMINATE DURING MASTER CAUTION RECALL.

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