Service difficulty report · Tat Probe · Boeing 7377H4

Difficulty date
March 12, 2026
Submitted
March 16, 2026
Operation
Air carrier
Aircraft
N940WN
Make and model
Boeing 7377H4
Aircraft serial
36900
Aircraft time
53,625 hours, 33,021 cycles
Part
Tat Probe
Condition
Failed
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

BOTH ENGINES ONLY ACHIEVED 94.6 PERCENT N1 WHEN 95.5 PERCENT WAS REQUIRED-THRUST LEVERS WERE IN FULL FORWARD POSITION. NO FAULTS ON ADIRUS OR DEUS. R & R TAT PROBE IAW AMM 34-21-06 AND PERFORMED POWER ASSURANCE TEST IAW AMM 71-00-00. OP CHKD GOOD. OK FOR SERVICE.

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