- Difficulty date
- September 15, 2023
- Submitted
- September 18, 2023
- Operation
- Air carrier
- Make and model
- Boeing 74746NF
- Aircraft serial
- 30808
- Aircraft time
- 94,188 hours, 15,889 cycles
- Part
- Seal
- Part number
- 1347M32G09
- Part serial
- NA
- Condition
- Unknown
- Location
- Unknown
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- K
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#4 OIL QTY DECREASING IN FLIGHT 1 QUART PER 20 MIN(<P>PERFORMED ENGINE DRAIN INSPECTION IAW AMM 71-71-00, FOUND OIL LEAKING FROM HMM DRAIN LINE. R/R CARBON SEAL AT AGB IAW AMM 72-64-02. R/R HHM IAW AMM 73-21-14. PERFORMED IDLE LEAK CHECK TEST #3 & #12 EEC ACTUATOR GROUND TEST, NO LEAK NOTED. LEAK CHECK GOOD. OPS CHK GOOD. </P>)