# SDR ASAA2019020928130

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 9, 2019
- Submitted: February 12, 2019
- Operation: Air carrier
- Aircraft: [N491AS](https://openairdocs.org/aircraft/N491AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44109
- Aircraft time: 13,031 hours, 4,351 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019020928130

## Discrepancy

RIGHT PACK LIGHT ILLUMINATED DURING CLIMB THROUGH APPROX FL 180. PER QRH PUSHED TRIP RESET. LIGHT EXTINGUISHED FOR APPROX 1 MINUTE AND THEN ILLUMINATED AGAIN. PER QRH SELECTED RIGHT PACK OFF. GROUNDED - YES. T/S PER FIM 21-53 TASK 818, RAN RIGHT PACK REF AMM 21-00-00 PACK LIGHT DID NOT ILLUMINATE, RT PACK OPS CK NORMAL. RT PACK TEMP CONTROL BITE SHOWS NO FAULTS REF FIM 21-62 TASK 801.

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