Service difficulty report · Skin Panel · Boeing 767223

Difficulty date
February 16, 2024
Submitted
February 19, 2024
Operation
Air carrier
Aircraft
N312AA
Make and model
Boeing 767223
Aircraft serial
22315
Aircraft time
93,302 hours, 24,080 cycles
Part
Skin Panel
Part number
112T31015
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

DURING C-24 MAINTENANCE CHECK AT HAECO AMERICAS, MAINTENANCE REPORTED CORROSION DAMAGE ON LH WING UPPER SKIN PANEL NO.L, APPROX. AT WBL105 (112T3101-5), STRINGER U4-U5. DAMAGE WAS REMOVED BY BLENDING AFFECTED AREA PER SRM 51-10-02. PLANE XXXII, INITIAL 0.210" (UT, AVG.), MATERIAL. LOSS 0.038", (18.1%), REMAINING MATERIAL. 0.172" (UT). INITIAL THICKNESS, PER DRAWING 0.209". PLANE XXX, INITIAL 0.196" (UT, AVG.), MATERIAL LOSS 0.033", (16.9%), REMAINING MATERIAL. 0.163" (UT). INITIAL THICKNESS, PER DRAWING 0.192". BLEND OUTS ARE FOUND TO BE OUT OF LIMITS PER SRM 57-20-01, AOL 1, TABLE I OF 0.030 INCHES. RESTORED/REPAIRED AREA IAW ABX-REA-5720-65253-00 AND HAECO REO-G24759 REV: IR. ABX FORM M-287, M-289 AND FAA FORM 337