Service difficulty report · Skin Panel · Boeing 7472D7B

Difficulty date
November 25, 2006
Submitted
November 27, 2006
Operation
Air carrier
Aircraft
N523MC
Make and model
Boeing 7472D7B
Aircraft serial
21782
Aircraft time
91,203 hours, 18,612 cycles
Part
Skin Panel
Condition
Delaminated
Location
Rt 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

RT WING UPPER FIXED TRAILING EDGE PANELS AT WBL 353 AND WBL 445 AND UPPER FIXED LEADING EDGE PANEL AT WBL 363 HAVE DEGRADED AND DELAMINATED EXISTING COMPOSITE REPAIRS. ACCOMPLISHED PERMANENT REPAIRS AT WBL 353 ON 12 INCH LONG BY 10 INCH WIDE SECTION, WBL 445, 5 INCH LONG BY 7 INCH WIDE SECTION AND WBL 363, 12 INCH LONG BY 12 INCH WIDE SECTION. PERMANENT REPAIRS WERE ACCOMPLISHED AS PER BOEING 747 SRM 51-40-09 FIG 2 AND FIG 18 AND BOEING 747 SRM 51-40-12. ALSO, REFERENCE ATLAS AIR XEO NR 57-112406.

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