Service difficulty report · Skin · Boeing 747122

Difficulty date
February 18, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N850FT
Make and model
Boeing 747122
Aircraft serial
19755
Part
Skin
Condition
Corroded
Location
Lt Wing
Stage of operation
IN
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

LEVEL 1 CORROSION ON LEFT WING UPPER SKIN BELOW FIBERGLASS STRIP BETWEEN LEADING EDGE STRUCTURE AND SKIN IN THE FOLLOWING AREAS, BETWEEN WS 1246.35 AND 1267.65, OUTBOARD OF WS 1293.15, BETWEEN 1318.65 AND 1339.75, AND BETWEEN WS 1349.29 AND 1365.25. BLENDED CORROSION FOUND WITHIN LIMITS PER BOEING SRM 57-30-01 FIG. 1.