# SDR ASAA2019112203408

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 20, 2019
- Submitted: November 23, 2019
- Operation: Air carrier
- Aircraft: [N459AS](https://openairdocs.org/aircraft/N459AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36352
- Aircraft time: 22,798 hours, 7,361 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Warning Light
- Condition: False Activation
- Location: Rt A/C Pack
- Stage of operation: NR
- How discovered: 9
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019112203408

## Discrepancy

RIGHT "PACK" LIGHT ILLUMINATES DURING MASTER CAUTION RECALL. "PACK" LIGHT EXTINGUISHES AFTER SYSTEM RESET. GROUNDED - YES. RAN SYSTEM TEST REF B737-900 AMM 21-61-00 BITE TEST GOT A GREEN LIGHT, PREV FLT SHOWED SRADA EXIT FAIL LIGHT, VERIFICATION TEST PASSED RESET SYSTEM AND RERAN SYSTEM TEST SYSTEM OP CHECKS GOOD THIS CLEARS MEL 21-32B.

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