Service difficulty report · Shaft · Boeing 737824

Difficulty date
September 21, 2012
Submitted
September 21, 2012
Operation
Air carrier
Aircraft
N14249
Make and model
Boeing 737824
Aircraft serial
28809
Aircraft time
41,291 hours, 15,345 cycles
Engine
Cfmint CFM567B26US
Part
Shaft
Part number
32895625
Part serial
11022
Condition
Sheared
Location
Nr 1 Precooler
Part time
13,245 hours, 4,528 cycles
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

LEFT BLEED TRIP OFF LIGHT ILLUMINATED. QRH FOLLOWED FOUND PRECOOLER VALVE SHAFT SHEARED. REPLACED SAME IAW AMM 36-12- 02. OPS CK NORMAL ROTABLE PARTS CHANGE WAS INDICATED -VALVE, PRECOOLER.