Service difficulty report · Fitting · Boeing 757351

Difficulty date
August 27, 2020
Submitted
August 31, 2020
Operation
Air carrier
Aircraft
N586NW
Make and model
Boeing 757351
Aircraft serial
32987
Aircraft time
61,624 hours, 20,153 cycles
Part
Fitting
Condition
Damaged
Location
Lt Wing
Stage of operation
IN
How discovered
O
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 AN H CHECK, WHILE PERFORMING LH ENGINE DRAG FITTINGS CLAMP-UP AND DIAGONAL BRACE INSPECTIONS HOLE #9, COMMON TO THE LH WING UPPER SKIN, WAS FOUND OUT OF STANDARD HOLE DIAMETER TOLERANCES; DEFECT WAS REMOVED AFTER REAMING / TO 1ST OVERSIZE. C/W ERA 587544-14AD.