Service difficulty report · Support Channel · Boeing 7377BD

Difficulty date
November 13, 2025
Submitted
December 17, 2025
Operation
Air carrier
Aircraft
N7752B
Make and model
Boeing 7377BD
Aircraft serial
33943
Aircraft time
55,287 hours, 29,078 cycles
Part
Support Channel
Part number
141A8112U2
Condition
Corroded
Location
Zone 200
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

CORROSION ON FWD ENTRY DOOR ZEE SUPPORT CHANNEL FROM BS 294.5+10 - 312+13, LBL 60, WL 208. REMOVED AND REPLACED THE SUPPORT CHANNEL IAW SRM 51-40-02-0G-0, AND DWG 141A8110, REV E.

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