Service difficulty report · Pressure Switch · Boeing 777222

Difficulty date
May 9, 2011
Submitted
May 12, 2011
Operation
Air carrier
Aircraft
N794UA
Make and model
Boeing 777222
Aircraft serial
26953
Aircraft time
60,091 hours, 8,647 cycles
Engine
Pwa PW40903
Part
Pressure Switch
Part number
21C167
Condition
Faulty
Location
Fuel System
Stage of operation
NR
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

FUEL PUMP LEFT AFT STATUS MSG. PULL AND COLLAR E2 AND L26 CB. INSTALLED NEW BOOST PUMP MR28287 ON 131 OFF 109. PRESSURE SWITCH INOP. REPLACED LT AFT PRESS SWITCH AND OP CHECKED OKAY.