Service difficulty report · Tat Probe · Boeing 767322

Difficulty date
April 5, 2021
Submitted
April 5, 2021
Operation
Air carrier
Aircraft
N673UA
Make and model
Boeing 767322
Aircraft serial
29241
Aircraft time
75,020 hours, 15,814 cycles
Part
Tat Probe
Condition
Faulted
Stage of operation
CL
How discovered
O
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

TAT PROBE MESSAGE ON LIFTOFF FOUND CB P63 GRID L 18 "L TAT" PROBE HEAT OPEN. CLOSED CB AND PERFORMED OPS CK REF AMM 34-12-02-404-008. CB REMAINED CLOSED THROUGH OUT TEST. AS PRECAUTION REPLACED K411 LEFT TAT PROBE CURRENT SENSING RELAY IN P33 PANEL. ALSO PERFORMED TAT OPERATION TEST IAW AMM 30-33-00. TAT OPERATIONAL TEST GOOD.