Service difficulty report · Sensor · Boeing 73779P

Difficulty date
June 2, 2026
Submitted
June 9, 2026
Operation
Air carrier
Aircraft
N7868K
Make and model
Boeing 73779P
Aircraft serial
29364
Aircraft time
58,866 hours, 39,230 cycles
Part
Sensor
Condition
Out Of Range
Location
Egt
Stage of operation
CL
How discovered
O
Nature of condition
N
Precautionary procedure
O

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

What was found

MAX T/O THRUST MTJ 97.1 N1 ON CLIMB NR 2 EGT INDICATED 966. REDUCED NR 2 THRUST BELOW REDLINE. INDICATIONS NORMAL AFTER - NO MASTER CAUTION LIGHTS. CW FIM 77-21 TASK 801 FOUND J9 HARNESS AND/OR PROBE OUT OF RANGE. REMOVED AND REPLACED PROBE T49.5 S4 SENSOR IAW AMM 77-21-01. C/W NR 2 ENGINE INSPECTION AFTER ENGINE OPERATIONS ABOVE LIMIT IAW AMM 71-00-00. C/W FIM 71-06 TASK 805. C/W POWER ASSURANCE CHECK TEST 5 IAW AMM 71-00-00. NO FAULTS NOTED; ENGINE OPERATION NORMAL.

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