SDR CALA2025112111402

Service difficulty report · Processor · Boeing 737824

Difficulty date: November 19, 2025
Submitted: November 21, 2025
Operation: Air carrier
Aircraft: N17233
Make and model: Boeing 737824
Aircraft serial: 28943
Aircraft time: 79,400 hours, 29,412 cycles
System (JASC): 2841 · Fuel Quantity Indicator
Part: Processor
Part number: 3012803
Part serial: 101X
Condition: Faulted
Location: Zone 100
Part time: 69,892 hours, 27,675 cycles
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: A

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

What was found

REPEAT ISSUE, RT TANK QTY STUCK AT 6.93 FOR 30 MINS IN CRUISE & THEN RAPIDLY DECREASED. PERFORMED BITE TEST OF THE FQIS, TESTED GOOD, AS A PRECAUTION, REMOVED AND REPLACED WITH A NEW FUEL QUANTITY PROCESSOR UNIT IAW TASK 28-41-81-000-801, AND TASK 28-41-81-400-801, BITE TESTED GOOD ON THE FUEL PANEL & IN THE COCKPIT CDU FQIC.