# SDR CALA2011072600511

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 26, 2011
- Submitted: July 26, 2011
- Operation: Air carrier
- Aircraft: [N12116](https://openairdocs.org/aircraft/N12116), registered now
- Make and model: Boeing 757224
- Aircraft serial: 27558
- Aircraft time: 64,855 hours, 13,959 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Stage of operation: DE
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2011072600511

## Discrepancy

DURING DESCENT TURNED ON ENG A/I FOLLOWED BY EXTREME ELECTRICAL BURNING SMELL (NO SMOKE).  TURNED OFF ENG A/I AND WINDOW HEAT (PRECAUTIONARY MEASURE WITH NO FURTHER SMELL ( IT TOOK 15 MINS TO CLEAR).  OPEN ENG COWLS VISUALLY CHECK EXAMPLE BAY DID ENG RUN UP ON BOTH ENG RAN ANTI ICE VALVE & WINDOW HEAT PER 71-00-00 M&M FOUND ALL WORKING NORMAL AT THE MOMENT DID CHANGE RECIRC FILTERS THAT WERE FOUND DIRTY PER 21-25-02, OK TO CONTINUE.

---
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.