Service difficulty report · Sensor · Boeing 777224

Difficulty date
March 18, 2025
Submitted
March 20, 2025
Operation
Air carrier
Aircraft
N78017
Make and model
Boeing 777224
Aircraft serial
31679
Aircraft time
106,982 hours, 10,828 cycles
Part
Sensor
Part number
8TJ146CFB1
Part serial
YE015076
Condition
Faulted
Location
Engine Oil Level
Stage of operation
IN
How discovered
9
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

E2 ESN 900329 IS REPORTING INTERMITTENT OIL QUANTITY READINGS. PERFORM T/S PER FIM 79-31-10-810-802-G00. CHECK FOR FUEL IN THE OIL TANK PER AMM 12-13-01-200-003-002. CARRIED BY ELB FOLLOWED FIM 79-31-10-810-802-G00. NO MAT MESSAGE FOR THE RIGHT ENGINE OIL QTY. NO FUEL SMELL IN OIL TANK, AND LEVEL OF OIL WAS 21 QUARTS- I ADDED OIL TO SYSTEM. NO WIRING ISSUED NOTED. INSTALLED NEW OIL QTY SENSOR REF AMM 79-31-01-400-802-G00. PERFORMED 5 MIN IDLE RUN OF RIGHT ENGINE, OIL QTY INDICATION WAS NORMAL AND NO LEAKS NOTED.