Service difficulty report · Drain Valve · Boeing 76734AF

Difficulty date
March 16, 2026
Submitted
March 26, 2026
Operation
Air carrier
Aircraft
N303UP
Make and model
Boeing 76734AF
Aircraft serial
27241
Aircraft time
74,893 hours, 26,003 cycles
Part
Drain Valve
Part number
453T10141
Condition
Broken
Location
Zone 100
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

FOUND DRAIN VALVE ASSEMBLY BROKEN DURING PERFORM TASK CARD EO-89877-REQ1. REPLACED THE DRAIN VALVE ASSEMBLY IAW AMM 51-41-01-004-001 REV 147 AND AMM 51-41-01-404-003 REV 147.

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