Service difficulty report · Drain Mast · Boeing 767346

Difficulty date
July 19, 2026
Submitted
July 28, 2026
Operation
Air carrier
Aircraft
N363UP
Make and model
Boeing 767346
Aircraft serial
33494
Aircraft time
54,585 hours, 19,423 cycles
Engine
Ge CF680C2B6F
Part
Drain Mast
Part number
1315M18G04
Condition
Cracked
Location
Zone 400
Stage of operation
IN
How discovered
V
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

CRACKED MAST, NR 1 ENG LWR DRAIN MAST. IAW AMM 71-71-01-024-001-H00, REV 148, AND AMM 71-71-01-424-005-H00, REV.148, REPLACED THE DRAIN MAST OF NR 1 ENGINE.