# SDR ASAA1159025

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 12, 2011
- Submitted: February 16, 2011
- Operation: Air carrier
- Aircraft: [N596AS](https://openairdocs.org/aircraft/N596AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35688
- Aircraft time: 10,642 hours, 3,435 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Filter
- Part number: 412A160041
- Condition: Dirty
- Location: Cabin
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA1159025

## Discrepancy

WITH CABIN TEMP CONTROLLERS FULL HOT F/A'S COMPLAINING TO COLD. TEMP GAUGE SHOWS MAX TEMP OF 24 DEG AT 48DEG TAT 21 DEG.  ACCOMPLISHED FIM TASK 21 61 00 810 863/864 AFT/FWD CABIN AUTO TEMPERATURE CONTROL DOES NOT OPERATE.  PER STEP F1 FOUND FILTERS DIRTY.  CLEANED FWD AND AFT CABIN FILTERS AND OPS CHECKED FWD AND AFT CABIN TEMPERATURE INCREASES CHECKS GOOD.

---
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.