SDR UALA2009031000500

Service difficulty report · Processing Unit · Boeing 777222

Difficulty date: February 15, 2009
Submitted: March 26, 2009
Operation: Air carrier
Aircraft: N223UA
Make and model: Boeing 777222
Aircraft serial: 30224
Aircraft time: 30,849 hours, 3,935 cycles
Engine: Pwa PW40903
System (JASC): 2841 · Fuel Quantity Indicator
Part: Processing Unit
Part number: 0335KPU01
Part serial: 3
Condition: Malfunctioned
Location: Fuel System
Stage of operation: IN
How discovered: O
Nature of condition: O
Precautionary procedure: O

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

What was found

FUELER REPORTS LT MAIN OUTBOARD REFUEL VALVE INOP. FOUND FQPU EXISTING FAULT MSG 28-20050 AND LT OUTBOARD REFUEL VALVE INOP. RELOADED FQPU SOFTWARE, FAULT CLEARS AND ALL VALVES OP NORMAL. REPLACED FQPU DUE TO HISTORY, ALL REFUEL VALVES OP CHECK NORMAL. FQPU OP CHECKS OK, NO FAULTS NOTED, REF TSM28-41-801, MM 28-41-01.