Service difficulty report · None · Boeing 737924ER

Difficulty date
December 16, 2021
Submitted
December 17, 2021
Operation
Air carrier
Aircraft
N78438
Make and model
Boeing 737924ER
Aircraft serial
33533
Aircraft time
39,538 hours, 13,811 cycles
Part
None
Part number
NA
Part serial
NA
Condition
None
Location
Fuel Tanks
Stage of operation
CR
How discovered
O
Nature of condition
O
Precautionary procedure
A

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

What was found

FUEL QUANTITY INDICATION, FLIGHT COMPARTMENT IMBAL MESSAGE SHOWS TANK #2 IS 6.4. PERFOMED FUEL MEASURING VIA STICK MANUAL REF 12-11-06 PG 335. FOUND TANK #1 INDICATION CORRECT READING AND 3.8 BUT TANK #2 IS AT 3.9LBS. USING STICK #3. VERFIED A/C HAS BALANCED FUEL AND TANK #2 INDICATION IS ERRONUEOUS. PLACED #2 FUEL TANK QTY INDICATOR IN FLIGHT DECK ON MEL 2806B, FUEL QUANTITY BUSSING PLUG CONNECTOR JUMPER HARNESS, PN CONNECTOR JUMPER HARMESS MUST BE REMOVED AND RETURNED TO MSYMX. COMPLIED WITH MEL 2806B, DDP COMPLIED WITH. #2 FUEL TANK QUANTIT DUE TO ERRATIC INACCURATE READINGS. COMPLIED WITH DDP, INSTALLED 2800TC14613-501. UPON CLEARING THIS MEL ITEM, BUSS PLUG Y IS INOP. WILL HAVE TO ALT FUEL TANK. JUMPER BUSS PLUG IS MSYMX DISPATCH DESK: 24 NAME: PZ DATE: 15-DEC-21- NOC DESK: 737 NAME: RK DATE: 15-DEC-21- TOMC AND DISPATCH APPROVED, OK TO DEFER PER MEL 2806B PERFORMED FQIS BITE PROCEDURE PER 28-41 TASK 801. HAS NO FAULTS, GROUND TEST PASSED. FOUND FUEL QTY #2 FLUCATING AND INCREASING ON COCKPIT GAUGE. REFUEL PANEL GAUGE READS SAME HAS COCKPIT GAUGE. A/C FUEL QTY READS CURRENTLY TANK 1 IS 3.8 AND