# SDR ASAA2019011427796

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 14, 2019
- Submitted: January 16, 2019
- Operation: Air carrier
- Aircraft: [N577AS](https://openairdocs.org/aircraft/N577AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35186
- Aircraft time: 44,923 hours, 13,433 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- Stage of operation: TX
- 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/ASAA2019011427796

## Discrepancy

CONT CAB ZONE TEMP LIGHT ILLUMINATED OF RECALL AFTER START. EXTINGUISHES WITH MASTER CAUTION RESET. GROUNDED - YES. PACK/ZONE TEMP CONTROLLER BITE AMM 21-61-00 OPS CHECK NORMAL GROUND VERIFICATION SUCCESSFUL.

---
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.