SDR MALA060465

Service difficulty report · Precooler · Saab 340B

Difficulty date: July 7, 2006
Submitted: July 11, 2006
Operation: Air carrier
Aircraft: N439XJ
Make and model: Saab 340B
Aircraft serial: 340B439
Aircraft time: 19,175 hours, 20,999 cycles
System (JASC): 3610 · Pneumatic Distribution System
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

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

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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