# SDR ASAA2014101409379

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 14, 2014
- Submitted: October 17, 2014
- Operation: Air carrier
- Aircraft: [N559AS](https://openairdocs.org/aircraft/N559AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35178
- Aircraft time: 30,104 hours, 9,021 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Control Valve
- Part number: 3989083
- Part serial: 5335
- Condition: Malfunctioned
- Location: Rt A/C Pack
- Part time: 47,138 hours, 18,477 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2014101409379

## Discrepancy

RIGHT PACK ILLUMINATES WITH RECALL,  EXTINGUISHES WITH RESET.  ACFT GROUNDED.  ACCOMPLISHED BITE ON NR 2 TEMP CONTROLLER.  FOUND TCV RED LIGHT ON.  REPLACED RT PACK TEMP CONTROL VALVE IAW AMM TASK 21-51-10-000-801, 21-51-10-400-801.  OPS TESTS PASSED- NO LEAKS.

---
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.