Service difficulty report · Rib · Boeing 757351

Difficulty date
November 18, 2020
Submitted
November 19, 2020
Operation
Air carrier
Aircraft
N588NW
Make and model
Boeing 757351
Aircraft serial
32988
Aircraft time
62,095 hours, 20,105 cycles
Part
Rib
Condition
Cracked
Location
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

DURING INSPECTION WHILE REMOVING LT WINGLET, AN IMPACT OCCURRED ON THE WINGLET PLUG ASSEMBLY CAUSING A 3.100 LONG CRACK ON RIB INBOARD SIDE ROOT RADIUS & A BENT ON LEADING EDGE SKIN. REPAIRED PER ERA 588666-14.