# SDR MALA060465

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 7, 2006
- Submitted: July 11, 2006
- Operation: Air carrier
- Aircraft: N439XJ
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 340B439
- Aircraft time: 19,175 hours, 20,999 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Precooler
- Part number: 7827791
- Part serial: 841045
- Condition: Malfunctioned
- Location: Bleed Air Sys
- Stage of operation: CR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MALA060465

## Discrepancy

RT BLEED CLOSING IN AUTO AND MAN MODE.  THE CREW RETURNED TO MSP WITHOUT FURTHER INCIDENT.  REPLACED RT PRECOOLER P/N 782779-1, S/N ON 841045.  REPLACED RT ACM P/N 776910-6, S/N ON 960-646, S/N OFF 840221.  INSTALLED NEW HEAT EXCHANGER P/N 779215-2, S/N ON 90144, S/N OFF 900682.

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