# SDR ASAA2017020319657

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 3, 2017
- Submitted: February 6, 2017
- Operation: Air carrier
- Aircraft: [N495AS](https://openairdocs.org/aircraft/N495AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41728
- Aircraft time: 3,874 hours, 1,282 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Warning Light
- Condition: False Activation
- Stage of operation: DE
- 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/ASAA2017020319657

## Discrepancy

DURING MASTER CAUTION RECALL THE CONTROL CABIN LIGHT ILLUMINATED AT TOP OF DESCENT LIGHT EXTINGUISHED DURING RESET.  ACFT GROUNDED. ACCOMPLISHED BITE OF PFTC IAW FIM 21-62 TASK 801, NO EXISTING FAULTS, FAULT HISTORY LEG 1 LOGGED 21-51311 F/D SELECTOR. ACCOMPLISHED FIM 21-62 TASK 862 ALL TESTS PASS WITH NO EXISTING FAULTS. NO HISTORY 30 DAYS.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.