Service difficulty report · Relay · Boeing 777222

Difficulty date
November 7, 2008
Submitted
January 18, 2010
Operation
Air carrier
Aircraft
N794UA
Make and model
Boeing 777222
Aircraft serial
26953
Aircraft time
49,611 hours, 7,295 cycles
Engine
Pwa PW4090
Part
Relay
Condition
Faulty
Location
Pitot Heat
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
D

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

What was found

HEAT PITOT C MSG AFTER START. STATUS MSG - HEAT PITOT C - MAINT MSG 30-3612. REPLACED PROBE HEAT SENSOR RELAY. CHECKED OPS OK. NO STATUS MSG ON EICAS.