# SDR EIAA20090059SUP

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 13, 2009
- Submitted: June 5, 2009
- Operation: Air carrier
- Aircraft: [N471EV](https://openairdocs.org/aircraft/N471EV), registered now
- Make and model: Boeing 747273C
- Aircraft serial: 20651
- Aircraft time: 100,598 hours
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Acm
- Condition: Defective
- Location: Nr 1
- Stage of operation: CR
- 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/EIAA20090059SUP

## Discrepancy

NR 1 PACK PRODUCING ODOR OF TURBINE OIL.  REPLACED NR 1 ACM PER MM 21-51-04 AND RESET NR 1 PACK VALVE PER DDPG AND MM 21-51-00.

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