# SDR ASAA2018111966882

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 16, 2018
- Submitted: November 19, 2018
- Operation: Air carrier
- Aircraft: [N408AS](https://openairdocs.org/aircraft/N408AS), registered now
- Make and model: Boeing 737-900ER
- Registry model: [Boeing 737-900ER](https://openairdocs.org/model/boeing-737-900er) (OpenAirDocs)
- Aircraft serial: 41732
- Aircraft time: 23,547 hours, 7,713 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Warning Light
- Condition: False Activation
- Location: Cockpit Temp
- 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/ASAA2018111966882

## Discrepancy

CONT CAB ZONE TEMP LIGHT ON RECALL, LIGHT EXTINGUISHES WHEN MASTER CAUTION IS PUSHED. GROUNDED - YES. PERFORMED B737-900 FIM 21-62 TASK 842. RESET FAULT AND LIGHT STAYS EXTINGUISHED. PERFORMED MULTIPLE OPS CHECKS OF CAB ZONE TEMP CONTROLLER PER B737-900 AMM 21-61-00-700-807-002. NO FAULTS FOUND. COULD NOT DUPLICATE PROBLEM.

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