SDR NACA2025040700001

Service difficulty report · Skin · Boeing 737301

Difficulty date: April 7, 2025
Submitted: June 27, 2025
Operation: Air carrier
Aircraft: N360WA
Make and model: Boeing 737301
Aircraft serial: 23553
Aircraft time: 65,384 hours, 55,630 cycles
System (JASC): 5730 · Wing, Plate/Skin
Part: Skin
Condition: Chafed
Location: Zone 600
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

CORROSION FOUND AT RT WING UPPER SKIN UPPER SURFACE WS.252, FRONT SPAR. WS.261 , FRONT SPAR . CORROSION FOUND AT RT WING UPPER SKIN UPPER SURFACE WS.266 , SKIN FWD EDGE. CORROSION FOUND AT RT WING UPPER SKIN UPPER SURFACE WS.268, SKIN FWD EDGE. CORROSION FOUND AT RT WING UPPER SKIN UPPER SURFACE WS.533 BETWEEN STR-10~ STR-11. CORROSION FOUND AT RT WING UPPER SKIN UPPER SURFACE WS.554 , SKIN TRAILING EDGE. PERFORMED REPAIR AS PER EO NO 737-57-0052 CAT B REPAIR.