SDR 2021F00157

Service difficulty report · Drain Mast · Boeing 7879

Difficulty date
May 21, 2021
Submitted
June 16, 2021
Operation
General aviation
Make and model
Boeing 7879
Aircraft serial
44427
Aircraft time
14,709 hours, 1,698 cycles
Part
Drain Mast
Condition
Leaking
Location
Lt Eng Fuel
Stage of operation
IN
How discovered
V
Nature of condition
K
Precautionary procedure
K

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

What was found

24.05.2021 17:36 LEFT ENGINE WITH FUEL LEAK AT MFP-TVB HOLE ON DRAIN MAST DURING TRANSIT CHECK, IT WAS DETECTED A FUEL LEAK AT LEFT ENGINE. MAINTENANCE PERSONNEL PERFORMED REVISION, DETECTING THE LEFT ENGINE WITH FUEL LEAK AT MFP-TVB HOLE ON DRAIN MAST OF 58 DROPS PER MINUTE; SO THE LEFT ENGINE VENTS AND DRAINS INSPECTION WAS PERFORMED IAW DMC-B787-A-G71-71-00-00A-280A-A, DETECTING FUEL LEAK AT MFP-TVB HOLE ON DRAIN MAST, INTO LIMITS PERMITTED FUEL LEAKAGE OF 72 DROPS PER MINUTE IAW DMC-B787-A-G71-71-00-00A-280A-A, TESTED CORRECT.

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