Service difficulty report · Check Valve · Boeing 777233LR

Difficulty date
February 12, 2009
Submitted
March 5, 2009
Operation
General aviation
Make and model
Boeing 777233LR
Aircraft time
4,555 hours
Engine
Ge GE90110B1
Part
Check Valve
Part number
8102052
Condition
Failed
Location
Air Con
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

(CAN) UNABLE TO CONTROL CABIN TEMP ZONE B, D AND F. DURING MAINT INSP FOUND THE LT PACK WITH A RUPTURED DUCT CAUSED BY A FAILED LT PACK FAN AIR CHECK VALVE.