Service difficulty report · Sill Drain · Boeing 73779P

Difficulty date
September 16, 2025
Submitted
October 23, 2025
Operation
Air carrier
Aircraft
N7861J
Make and model
Boeing 73779P
Aircraft serial
33008
Aircraft time
55,751 hours, 37,483 cycles
Part
Sill Drain
Condition
Corroded
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

CORROSION LOWER SILL LOCATED BETWEEN STA794.3 TO STA847 AND RBL24 WL156 AT AFT CARGO COMPARTMENT. REPLACED LOWER SILL LOCATED BETWEEN STA794.3 TO STA847 AND RBL24 WL156 AT AFT CARGO COMPARTMENT IAW SRM 51-10-02 PARAGRAPH 9; SRM 51-40-02 AND DWG 146A8340; SHEET 21; REV-.

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