Service difficulty report · Connector · Boeing 737522

Difficulty date
March 30, 2006
Submitted
May 16, 2006
Operation
Air carrier
Aircraft
N913UA
Make and model
Boeing 737522
Aircraft serial
25291
Aircraft time
39,762 hours, 29,342 cycles
Engine
Ge CFM56*
Part
Connector
Condition
Burned
Location
Boost Pump
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

LEFT AFT BOOST PUMP CONNECTOR BURNED TO PUMP ASSEMBLY. THE LEAKAGE OBSERVED WAS VERIFIED AND CAUSED BY A LOCALIZED OVERHEATING OF THE CONNECTOR PINS THAT RESULTED IN DAMAGE TO THE SEAL AROUND PIN 2. THE CAUSE FOR THE EXCESSIVE OVERHEATING IN THE CONNECTOR PIN AREA IS UNKNOWN. REPLACED FUEL BOOST PUMP. DEFECTIVE PUMP WAS MADE SERVICABLE.