Service difficulty report · Tat Probe · Boeing 767322

Difficulty date
September 13, 2026
Submitted
September 15, 2026
Operation
Air carrier
Aircraft
N671UA
Make and model
Boeing 767322
Aircraft serial
30026
Aircraft time
93,171 hours, 18,462 cycles
Engine
Pwa PW4060
Part
Tat Probe
Condition
Faulted
Location
Zone 100
Stage of operation
CL
How discovered
O
Nature of condition
G
Precautionary procedure
A

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

What was found

LOSS OF ALL TAT DATA CLIMBING THROUGH 330 LOSS OF AP/AT LNAV/VNA V TCAS/WINDSHEAR TROUBLESHOT IAW SSM 34-12-01-103. FOUND TAT PROBE TS161L AT FAULT. R & R TAT PROBE IAW AMM 34-12-02-401. PERFORMED TAT PROBE TEST IAW AMM 34-12-02-404-008. PROBE TESTED GOOD. OTHER AFFECTED SYS STILL REQUIRE OPS CHKS. OPS TESTS OF AFFECTED SYS COMPLETED, REF. L/P 3333484 FOR GPWS OPS TEST 34-46-00-715-141-006. REF. L/P 3333346 FOR EPR IND. AMM 22-32-00-715-001 AND A/T AND A/P MCDP TESTS 10, 11, AND 12 FIM 22-03-00/101. REF L/P 3333483 FOR TCAS OPS TEST 34-45-00-715-239-001. ACFT REQUIRES GROUND TEST 30 DUE TO CAT SYSTEMS BEING AFFECTED AS A RESULT OF LOSS OF ALL TAT DATA.