# SDR ASAA2018091326107

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 12, 2018
- Submitted: September 13, 2018
- Operation: Air carrier
- Aircraft: [N423AS](https://openairdocs.org/aircraft/N423AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 35206
- Aircraft time: 21,577 hours, 7,131 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- Stage of operation: NR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018091326107

## Discrepancy

UPON RECALL LEFT HAND PACK ILLUMINATED AND CLEARED WITH MASTER CAUTION RESET. GROUNDED - YES. CREW PERFORMED BITE CHECK ON BOTH TEMP CONTROLLERS REF AMM 21-60-01 NO FAULTS LOGGED. SYSTEM OPS CHECKS NORMAL.

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