Service difficulty report · Skin · Boeing 757231

Difficulty date
November 1, 2022
Submitted
December 20, 2022
Operation
Air carrier
Aircraft
N721TW
Make and model
Boeing 757231
Aircraft serial
29954
Aircraft time
83,196 hours, 21,517 cycles
Part
Skin
Condition
Damaged
Location
Rt Wing
Stage of operation
IN
How discovered
9
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

REPAIR TO RH WING UPPER SKIN COMMON TO DRAG FITTING ATTACHMENT REQUIRES SUPPLEMENTAL INSPECTIONS PER ERA 589150-14AD REV. A. VISUAL INSPECTION WAS ACCOMPLISHED ON OPEN HOLES #7 AND #14 , AT RH ENG DRAG FTG AND CORROSION WERE FOUND. PER ER/A 589150-14AD REV: A SECTION IV NDT TECHOPSMX A.M.M. 207813 14-DEC-22 (ET) HFEC OPEN HOLE INSPECTION WAS ACCOMPLISHED ON OPEN HOLES 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 17 AND 18 NO CRACKS WERE FOUND PER ER/A 589150-14AD REV.A SECTION IV SUMMARY: REPETITIVE BHEC INSPECTION WERE PERFORMED PER ER/A 589150-14AD REV A SECTION IV, ADDITIONAL FINDINGS WERE REPAIRED PER AMDS.