# SDR ASAA2018110526710

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 3, 2018
- Submitted: November 6, 2018
- Operation: Air carrier
- Aircraft: [N464AS](https://openairdocs.org/aircraft/N464AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 40714
- Aircraft time: 18,138 hours, 5,914 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Warning Light
- Condition: Illuminated
- Location: A/C Packs
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018110526710

## Discrepancy

AT THE COMPLETION OF THE BEFORE TAKEOFF CHECKLIST, DURING MASTER RECALL, BOTH PACK LIGHTS ILLUMINATED. LIGHTS EXTINGUISH WITH MASTER CAUTION RESET. GROUNDED - YES. ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE REF B737-900 AMM 21-61-00, #1 CONTROLLER LOGGED EXIT SRADA, #2 CONTROLLER LOGGED INLET & EXIT SRADA. RETEST AND CLEAR OK WITH NO FURTHER FAULTS.

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