SDR NACA2025040800004

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 500
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

LEFT WING UPPER SKIN UPPER SURFACE BETWEEN WS.260 AND WS.208.5, 363, AND WS.366 , WS.376 AND WS.380 , WS 417 AND WS.418.5 , WS.427 AND WS.428.5 , WS.433 AND WS.434.5 , FRONT SPAR AREA . REMOVED CORROSION LEVEL AT LH WING UPPER SKIN SURFACE SRM 51-10-02 PARA 14 (R136). REMAINING THICKNESS IS OVER LIMIT. AREA CLEAN AND PROTECIVE. PER: EO 737-57-0051 PME NO: 004693.