Service difficulty report · Bypass Valve · Bombdr DHC8402

Difficulty date
June 30, 2008
Submitted
August 7, 2008
Operation
Air carrier
Aircraft
N415QX
Make and model
Bombdr DHC8402
Aircraft serial
4081
Aircraft time
12,522 hours, 12,078 cycles
Part
Bypass Valve
Part number
8209143
Part serial
200002210
Condition
Failed
Location
Cabin Air
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

BOI - FLIGHT 2344 (SUN-SEA). UNABLE TO CONTROL CABIN TEMPS. UP TO 100 DEGREES IN CABIN. DIVERTED TO BOI. ACCOMPLISHED UNEVENTFUL LANDING. CONFIRMED BOTH PACKS UNCONTROLLABLE ON GROUND RUN. REPLACED BOTH BYPASS VALVES. OPERATIONAL CHECKS GOOD. RETURN TO SERVICE. (A)