# SDR MALA100054

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 2, 2010
- Submitted: April 5, 2010
- Operation: Air carrier
- Aircraft: N450XJ
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 340B450
- Aircraft time: 24,963 hours, 27,761 cycles
- Engine: Ge CT79B
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: A/C Pack
- Condition: Malfunctioned
- Location: Left
- Stage of operation: CL
- 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/MALA100054

## Discrepancy

ON CLIMB OUT, NOTICED A BURNING ODOR UNABLE TO CONTROL LT PACK - TEMP SWITCH WAS 90 AND CLIMBING INTO AUTO OR MANUAL MODE.  SHUTOFF LT PACK AND ODOR WENT AWAY. RETURNED TO DEPARTURE. DEFERRED LT AIR CONDITION PACK IAW MEL 21-50-1. SCOOP LOWERED MX PROX WITH MXC 22609 ENTERED IN MM02 A&P 2060784.  PERFORMED OPS CHECK OF TEMP CONTROL SYS IAW AMM 21-60-00, OPS CHECKS GOOD AT THIS TIME. REMOVED FROM MEL MM02, AIR SCOOP RESECURED. TURN ACM BY HAND AND ACM TURNS FREELY. R & R LT AIR CYCLE MACHINE. NO ODOR OF BURNED OIL WAS PRESENT.

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