Service difficulty report · Line · Boeing 7378

Difficulty date
June 7, 2026
Submitted
June 9, 2026
Operation
Air carrier
Aircraft
N8790Q
Make and model
Boeing 7378
Aircraft serial
67773
Aircraft time
10,978 hours, 5,546 cycles
Part
Line
Condition
Leaking
Location
Apu Oil Sys
Stage of operation
IN
How discovered
O
Nature of condition
K, B
Precautionary procedure
K

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

What was found

PREVIOUS CREW REPORTS POSSIBLE SMOKE IN COCKPIT AFTER LANDING APU OIL SUPPLY LINE LEAKING AT THE LINE.<[01] OK TO CONTINUE PER MEL 49-11-01 SP1 SP2. FOUND OIL LEAKING FROM APU OIL COOLER SUPPLY LINES. REMOVED AND REPLACED APU OIL COOLER SUPPLY LINES IAW AMM 49-91-41. OPS AND LEAK CHKD GOOD AT THIS TIME.

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