Service difficulty report · Engine · Boeing 7378

Difficulty date
July 11, 2021
Submitted
August 10, 2021
Operation
Air carrier
Make and model
Boeing 7378
Aircraft serial
43705
Engine
Cfmint LEAP1B21
Part
Engine
Condition
Oil Consumption
Location
Nr 2
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

06.08.2021 02:41 RIGHT ENGINE WITH OIL DROPS DURING ENGINE START. DURING OVERNIGHT CHECK AT MEX STATION AND DURING RIGHT ENGINE START, IT WAS DETECTED OIL DROPS. MAINTENANCE PERSONNEL PERFORMED REVISION, DETECTING OIL DROPS ON RIGHT ENGINE SUMP DRAIN OF 47 DROPS PER MINUTE; SO THE RIGHT ENGINE START AT IDLE WITH 540 CC/HR OF OIL LEAK RATE FROM B-SUMP DRAIN WITHIN LIMITS AND OIL CONSUMPTION WITHIN SERVICEABLE LIMITS ACCORDING OF OIL CONSUMPTION GRAPHIC AND THE OIL DROPS DID STOPPED; OPERATIONAL TEST NUMBER 5 WAS PERFORMED IAW AMM TASK 71-00-00-710-801-G00, TESTED CORRECT.

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