# SDR ASAA2017122623005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 26, 2017
- Submitted: December 27, 2017
- Operation: Air carrier
- Aircraft: [N596AS](https://openairdocs.org/aircraft/N596AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35688
- Aircraft time: 36,848 hours, 11,227 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: A/C Pack
- Condition: False Indication
- Location: Left
- Stage of operation: CL
- 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/ASAA2017122623005

## Discrepancy

DURING CLIMBOUT,  THE LEFT PACK LIGHT ILLUMINATED,  EXTINGUISHED WITH MASTER CAUTION RESET.  ACFT GROUNDED.  PERFORMED BITE CHECK ON PACK-ZONE TEMP CONTROLLER.  TCV FAULT SHOWED ON THE NR 1 CONTROLLER.  FAULT CLEARED UPON COMPLETION OF BITE CHECK.  RAN THE BITE CHECK AGAIN, SUCESSFUL GROUND CHECK.  OK IAW AMM 21-61-00-700-806-002.

---
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.