Service difficulty report · Channel · Boeing 747481

Difficulty date
March 26, 2016
Submitted
March 29, 2016
Operation
Air carrier
Aircraft
N263SG
Make and model
Boeing 747481
Aircraft serial
29263
Aircraft time
48,655 hours, 6,011 cycles
Part
Channel
Condition
Corroded
Location
Lt Wing
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 LT WING LE CAVITY INSIDE, LOWER PANEL SURFACE, UPPER CHANNEL SURFACE CORROSION OLES 1420. BLEND OUT THE DAMAGED AREA LXDXW=1.1"X0.002"X0.8" WHICH WAS WITHIN ALLOWABLE LIMIT IAW 57-00-03-1A-1. ALLOWABLE DAMAGE 1 FIG T 101 DETAIL II REV 96. DETAIL DATA REF JC ATTACHING SHEET NR 050648. APPLY PROTECTIVE TREATMENT & PRIMER IAW SRM 57-20-01 REV 96 4. JOB COMPETED & CONDITION CHECKED NORMAL.