Service difficulty report · Probe · Boeing 747422

Difficulty date
December 31, 2013
Submitted
January 3, 2014
Operation
Air carrier
Aircraft
N121UA
Make and model
Boeing 747422
Aircraft serial
29167
Aircraft time
60,878 hours, 7,057 cycles
Engine
Pwa PW4056
Part
Probe
Condition
Malfunctioned
Location
Nr 1 Engine
Stage of operation
IN
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

ENG 1 TT2 & PT2 PROBE HEAT FAIL MESSAGE IS ACTIVE. REPLACED NR 1 ENG PT2 &TT2 PROBE. IDLE RUN TEST NR 6 & NR 7 ZIA 42332.