Service difficulty report · Transmitter · Boeing 777222

Difficulty date
August 20, 2009
Submitted
August 26, 2009
Operation
Air carrier
Aircraft
N791UA
Make and model
Boeing 777222
Aircraft serial
26933
Aircraft time
52,361 hours, 7,755 cycles
Engine
Pwa PW40903
Part
Transmitter
Part number
921761
Part serial
50
Condition
Inoperative
Location
Lt Fuel Flow
Stage of operation
IN
How discovered
V
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

FUEL FLOW INDICATION (ENGINE) - BLANK MSG-7360951 ACTIVE DC HARD. ALL FUEL TANK QUANTITY IND SYS OPS NORMAL. MSG 73-60951 FUEL FLOW TX L ENG SIGNAL RANGE HAS OCCURRED ONLY DURING DESCENT ON MOST FLIGHTS. CREW NOTED FUEL FLOW GAUGE WORKED PERFECTLY ENTIRE FLIGHT. REPLACED 1 ENG FUEL FLOW TRANSMITTER. LEAK CHECKED GOOD. 1 ENG FUEL FLOW TRANSMITTER TESTED PER POWER PLANT REF TABLE. OPERATED NORMAL.