SDR CALA2016022495126

Service difficulty report · Skin · Boeing 777222

Difficulty date: February 23, 2016
Submitted: February 24, 2016
Operation: Air carrier
Aircraft: N213UA
Make and model: Boeing 777222
Aircraft serial: 30219
Aircraft time: 55,973 hours, 11,760 cycles
Engine: Pwa PW4077
System (JASC): 5730 · Wing, Plate/Skin
Part: Skin
Condition: Corroded
Location: Lt Wing
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 LOWER SKIN EXTERIOR SURFACE, FOUND CORROSION AT WS 889.5 - 942, WS 942 - 968.5, WS 995 - 1021.5, WS 1047.5 - 1101, WS 1101 - 1155, WS 1182, WS 1292.5 - 1320 REAR SPAR AREA. LT WING LOWER SKIN EXTERIOR SURFACE CORROSION REMOVED & PROTECTED IAW SRM 51-10-02 & 51-20-01. HFEC FLUORESCENT PENETRANT INSP, NO CRACK OR DEFECT WAS FOUND.