SDR NACA2025040800003

Service difficulty report · Skin · Boeing 737301

Difficulty date: April 8, 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 RH WING UPPER SKIN UPPER SURFACE WS.135 , STR-7, WS.136 , STR-6, WS.137 , STR-4, WS.140 , STR-4, WS.147 , STR-7. CORROSION FOUND AT RH WING UPPER SKIN ANGLE WS.143 BETWEEN STR-9~ STR-10. PERFORMED REPAIR AS PER EO NO 737-57-0052 CAT B REPAIR,