Service difficulty report · Warning Light · Boeing 747422

Difficulty date
July 1, 2003
Submitted
July 8, 2003
Operation
Air carrier
Aircraft
N198UA
Make and model
Boeing 747422
Aircraft serial
28716
Aircraft time
23,972 hours, 2,984 cycles
Engine
Pwa PW4056
Part
Warning Light
Condition
Illuminated
Location
Air Temp Sensor
Stage of operation
CL
How discovered
9
Nature of condition
J
Precautionary procedure
A

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

What was found

RETURNED TO FIELD DUE TO TOTAL AIR TEMPERATURE SENSOR MESSAGE. REPLACED CURRENT SENSING RELAY R7430. NO PROBLEMS NOTED SINCE REPLACEMENT OF RELAY.