# SDR UALA2011052702595

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 25, 2011
- Submitted: May 27, 2011
- Operation: Air carrier
- Aircraft: N551UA
- Make and model: Boeing 757222
- Aircraft serial: 25399
- Aircraft time: 74,423 hours, 21,516 cycles
- Engine: Pwa PW2037
- System (JASC): [2161 · Cabin Temperature Controller](https://openairdocs.org/jasc/2161)
- Part: Controller
- Part serial: 102
- Condition: Faulty
- Location: Flight Deck
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011052702595

## Discrepancy

FLT DECK WARMER THAN SELECTED WITH SWITCH ON & TEMP CONTROL IN AUTO.  INOP LIGHT EXISTING.  PRESS ECS REC BUTTON AND RECORD ZONE TEMPS.  PROG TEXT:  ACCOMPLISH CHRONIC REVIEW.  -CHRONIC.  PROCEDURE 1 USED ON MEL 2161E.  REPLACED ZONE TEMP CONTROLLER.  CHECKS OKAY PER MM.

---
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.