Service difficulty report · Spar · Boeing 7377H4

Difficulty date
October 26, 2020
Submitted
December 3, 2020
Operation
Air carrier
Aircraft
N403WN
Make and model
Boeing 7377H4
Aircraft serial
29815
Aircraft time
67,398 hours, 39,889 cycles
System (JASC)
5711 · Wing Spar
Part
Spar
Condition
Corroded
Location
Rt Wing Le
Stage of operation
IN
How discovered
9
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 FRONT SPAR ON LEADING EDGE INTERNAL AREA OF KRUEGER FLAP AT RT WING LOCATED AT WBL 94.24 AND IFSS 120.00. PERFORMED REPAIR FRONT SPAR ON LEADING EDGE INTERNAL AREA OF KRUEGER FLAP AT RT WING LOCATED AT WBL 94.24 AND IFSS 120 FUEL BOOST PUMP FAYING SURFACE, IAW EA NR 57-0738-20 REV O PART 1 AND PART 2 AND EA 20-157-02317 REV IR.

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