# SDR MALA070187

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 25, 2007
- Submitted: November 30, 2007
- Operation: Air carrier
- Aircraft: N449XJ
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 340B449
- Aircraft time: 20,891 hours, 22,760 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Acm
- Part number: 7769106
- Part serial: 921197
- Condition: Odor
- Location: Left
- Stage of operation: DE
- 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/MALA070187

## Discrepancy

RIGHT BLEED CLOSED LIGHT ILLUMINATED DURING DESCENT PRECEDED BY BURNED POPCORN ODOR IN FLIGHT DECK.  ODOR WENT AWAY AFTER VALVE CLOSED.  REPLACED LT ACM P/N 776910-6, S/N OFF 921197; S/N ON 9807109.  ALSO REPLACED RT LP BLEED VALVE P/N ON/OFF 785802-3; S/N OFF 910619 S/N ON 9707098.

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