# SDR VNAA2011080300033

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 29, 2011
- Submitted: August 3, 2011
- Operation: Air carrier
- Aircraft: [N720PS](https://openairdocs.org/aircraft/N720PS), registered now
- Make and model: Cndair CL6002C10
- Aircraft serial: 10178
- Aircraft time: 16,320 hours, 16,344 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Acm
- Part number: GG670950095
- Part serial: 00811
- Condition: Failed
- Location: Ac Bay
- Part time: 16,901 hours, 16,715 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/VNAA2011080300033

## Discrepancy

AT FAY, CREW REPORTED VIBRATION AND BURNT / ELECTRICAL SMELL ON APU START.  LEFT PACK WENT TO 36° C.  MAINTENANCE INSPECTED, REMOVED AND REPLACED LEFT ACM (AIR CYCLE MACHINE) AND PERFORMED CHECKS USING AIRCRAFT MAINTENANCE MANUALS.  AIRCRAFT RELEASED FOR SERVICE.

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