Service difficulty report · Module · Boeing 737522

Difficulty date
December 8, 2007
Submitted
December 11, 2007
Operation
Air carrier
Aircraft
N938UA
Make and model
Boeing 737522
Aircraft serial
26671
Aircraft time
43,555 hours, 27,272 cycles
Engine
Ge CFM56*
Part
Module
Part number
6937307149
Condition
Faulty
Location
Nr 2 Fire Handle
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

NR 2 FIRE HANDLE WILL NOT TEST USING MASTER-DIM TEST SWITCH. SUSPECT FAULTY FIRE CONTROL MODULE. ENGINE & APU FIRE CONTROL MODULE REPLACED AND TESTED NORMAL PER MM 26-21-51-401. AC OK FOR SERVICE.