Service difficulty report · Control Valve · Boeing 737*

Difficulty date
August 29, 2011
Submitted
January 23, 2013
Operation
Air carrier
Make and model
Boeing 737*
Aircraft time
28,700 hours
Engine
Ge CFM567B24
Part
Control Valve
Part number
32895626
Condition
Failed
Location
Nr 2
Part time
2,542 hours
Stage of operation
CR
How discovered
V
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

(CAN) THE FLIGHT CREW CALLED MX ENROUTE, ADVISING A BLEED TRIP ON THE NR 2 ENGINE. THE CREW RAN THE CHECKLIST AND WAS ABLE TO RESET THE SYS ON THE SECOND ATTEMPT. FOR COMPANY CONVENIENCE IT WAS DECIDED TO DIVERT TO A STATION WHERE PARTS AND MANPOWER WERE AVAILABLE. MX LOCKED OUT THE HIGH STAGE VALVE AND THE FLIGHT CONTINUED TO THE FINAL DESTINATION WITH AN MEL APPLIED TO THE SYS AND NO FURTHER ISSUES REPORTED BY THE CREW. AFTER FURTHER INVESTIGATION BY MX IT WAS DETERMINED THE PRECOOLER VALVE FAILED AND WAS REPLACED.