# SDR MYWA110137

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 24, 2011
- Submitted: December 27, 2011
- Operation: Air carrier
- Aircraft: N733MA
- Make and model: Boeing 737-81Q
- Registry model: [Boeing 737-81Q](https://openairdocs.org/model/boeing-737-81q) (OpenAirDocs)
- Aircraft serial: 30619
- Aircraft time: 28,170 hours, 10,154 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Filter
- Condition: Dirty
- Location: Cabin
- 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/MYWA110137

## Discrepancy

ETOPS SIGNIFICANT SYSTEM:  COCKPIT WILL NOT COOL.  FOUND LT RECIRC FAN FILTER DIRTY.  REMOVED AND REPLACED LT RECIRC FAN FILTER IAW AMM 21-25-01.  OPS CHECKS NORMAL.  LT RECIRCULATION FAN IN DUAL FAN SYSTEM DOES NOT OPERATE /LEFT FAULT CODE 212-040-41.  ACCOMPLISHED FIM TASK 21-25 TASK 802 NO DEFECTS NOTED.  ACCOMPLISHED RECIRCULATION SYSTEM OPERATIONAL TEST IAW AMM 21-25-00-710-802-002 OPS CHECKS NORMAL.

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