# SDR AALA201703209013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 15, 2017
- Submitted: March 20, 2017
- Operation: Air carrier
- Aircraft: [N757AN](https://openairdocs.org/aircraft/N757AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 32636
- Aircraft time: 61,673 hours, 7,773 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Bearing
- Condition: Worn
- Location: Zone 100
- Stage of operation: UK
- 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/AALA201703209013

## Discrepancy

AIRCRAFT WAS NOT GROUNDED.  STRONG ODOR COMING FROM FLIGHT DECK AND FIRST CLASS.  FOUND NR 2 EQUIPMENT COOLING SUPPLY FAN BEARING WORN.  REMOVED AND REPLACED NR 2 EQUIPMENT COOLING SUPPLY FAN IAW AMM 21-27-20-400.  OPERATIONAL CHECK GOOD.

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