# SDR RMXA053120099218

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 31, 2009
- Submitted: June 3, 2009
- Operation: Air carrier
- Aircraft: [N911MK](https://openairdocs.org/aircraft/N911MK), registered now
- Make and model: Bolkms BK117C2
- Aircraft serial: 9218
- Aircraft time: 54 hours, 235 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Compressor
- Part number: SD7H154616
- Condition: Seized
- Location: A/C Pack
- Part time: 54 hours
- Stage of operation: NR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/RMXA053120099218

## Discrepancy

DURING FLIGHT, A SLIGHT 'SQUEAL' NOISE WAS HEARD FOLLOWED BY A BURNED RUBBER ODOR. THE AIR CONDITIONER WAS SWITCHED OFF, THE NOISE QUIT.  ACFT MADE A PRECAUTIONARY LANDING AT A LOCAL AIRPORT. THE AIR CONDITIONER COMPRESSOR HAD LOCKED UP AND BURNED THE DRIVE BELT.

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