# SDR ASAA0954794

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 15, 2009
- Submitted: March 18, 2009
- Operation: Air carrier
- Aircraft: [N587AS](https://openairdocs.org/aircraft/N587AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35684
- Aircraft time: 5,514 hours, 1,580 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Sensor
- Part number: 6240181
- Condition: Dirty
- Location: Cabin Temp
- Stage of operation: TX
- How discovered: V
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA0954794

## Discrepancy

ZONE TEMP LIGHT ILLUMINATED ON RECALL FOR CONT CAB LIGHT EXTINGUISHES ON MASTER CAUTION RESET GROUNDED YES. PERFORMED BITE TEST ON NR 1 AND NR 2 ZTC FOUND FLT DECK SENSOR FLAGGED ON BOTH CONTROLLERS. PERFORMED CLEANING OF SENSOR REF 21-61-10-100-801 REF BITE TEST 21-61-00-700-807-002 AND OPS CKD REF 21-61-00-700-807-002. NO FAULTS LOGGED IN BOTH CONTROLLERS. SYS RETURNED TO NORMAL. MFG NOTIFIED.

---
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.