Service difficulty report · Pressure Switch · Boeing 767375

Difficulty date
April 22, 2019
Submitted
April 23, 2019
Operation
Air carrier
Aircraft
N1709A
Make and model
Boeing 767375
Aircraft serial
24086
Aircraft time
92,243 hours, 21,409 cycles
Part
Pressure Switch
Part number
21C1321
Part serial
X030465
Condition
Malfunctioned
Location
Fuel System
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

L FWD FUEL PUMP EICAS ON IN CLIMB OUT. PERFORMED BITE TEST PROCEDURES OF FUEL QT CONTROL BOX AND RESET. PERFORMED FIM FAULT TREE 807, TASK 28-25. REMOVED AND REPLACED BOOST PUMP FUEL PRESS SWITCH IAW AMM 28-285-03-04. OPS CHECK GOOD AT THIS TIME.