Service difficulty report · Panel · Boeing 7472D7B

Difficulty date
August 14, 2008
Submitted
August 21, 2008
Operation
Air carrier
Aircraft
N522MC
Make and model
Boeing 7472D7B
Aircraft serial
21783
Part
Panel
Condition
Cracked
Location
Rt Wing
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

RT WING UPPER AFT TRAILING EDGE PANEL, OUTBOARD OF INBOARD AILERON HAS 2 EACH SMALL COMPOSITE CRACKS AT WBL 445.00. FORWARD CRACK IS .500 INCH LONG AND AFT CRACK IS 1.0 INCH LONG. PERMANENT REPAIR ACCOMPLISHED AS PER 747-200 SRM 51-40-09 FIG 2, SHEETS 2 AND 5, PREPREG LAYUP 250 DEGREES F CURE PER SRM 51-40-12. ALSO, REFERENCE ATLAS AIR EO 4757A456. (S)

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