Service difficulty report · Warning System · Boeing 737890

Difficulty date
September 15, 2008
Submitted
September 22, 2008
Operation
Air carrier
Aircraft
N577AS
Make and model
Boeing 737890
Aircraft serial
35186
Aircraft time
5,958 hours, 1,797 cycles
Part
Warning System
Part number
125334D1
Part serial
AA103203
Condition
Malfunctioned
Location
Fuel System
Part time
5,958 hours, 1,797 cycles
Stage of operation
CL
How discovered
O
Nature of condition
N
Precautionary procedure
K

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

What was found

ON CLIMBOUT 2000LBS OF FUEL FROM NR 1 TANK TRANSFERRED INTO CENTER TANK. FUEL IMBAL LIGHT ON UPPER DEU FUEL QUANTITY ILLUMUNATED. FUEL X FEED WORKED NORMAL INFLIGHT. FUEL IMBALANCE WAS VERIFIED BY REQUIREMENT OF RUDDER AND AILERON TRIM. PERFORMED SCAVENGE PUMP FIM TEST PER MM 28 21 00 810 803. NO DEFECTS NOTED. PERFORMED OPERATIONAL CHECK OF THE FUEL CROSSFEED VALVE PER MM 28 22 00 730 802. NO DEFECTS NOTED. ACCESSED FUEL PANEL 532RB FOR VISUAL CHECK OF LEFT WING VENT FLOAT VALVE ASSEMBLY. NO DEFECTS NOTED OR EVIDENCE OF DAMAGE. CLOSED FUEL PANEL 532RB IAW MM 28 11 11 400 801. RELEASED JET FOR ETOPS FCF. ACCOMPLISHED FCF PER MIG 56 AND FOUND TO BE SATISFACTORY.