Service difficulty report · Web · Boeing 757251

Difficulty date
January 2, 2026
Submitted
January 5, 2026
Operation
Air carrier
Aircraft
N555NW
Make and model
Boeing 757251
Aircraft serial
33391
Aircraft time
63,261 hours, 28,684 cycles
Part
Web
Condition
Corroded
Location
Zone 100
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

FLC WEB CORRODED IN X2 SPOTS BS 620 - 640 JUST OTBD OF S27L. BLENDED CORROSION ON FLC WEB BS 620, STR 27L. NOMINAL THICKNESS .036 REMOVED .006 OF MATERIAL REMAINING THICKNESS .030. REMOVED CORROSION IAW 53-00-04-1A-1 DETAIL II. R & R WEB IAW SRM 51-40-02 PARAGRAP 4 AND DWG 143N5359. (1381786)