Service difficulty report · Spar · Boeing 7377H4

Difficulty date
December 7, 2020
Submitted
January 13, 2021
Operation
Air carrier
Aircraft
N434WN
Make and model
Boeing 7377H4
Aircraft serial
32454
Aircraft time
60,441 hours, 35,783 cycles
System (JASC)
5711 · Wing Spar
Part
Spar
Condition
Corroded
Location
Rt Wing
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 WEB LOCATED FUEL BOOST PUMP IFSS 120 APPROXIMATELY AT RT WING AND WBL 94.24. REPAIRED RT WING, FRONT SPAR WEB LOCATED AT 120.0 IFSS AT FUEL BOOST PUMP FAYING SURFACE, IAW EA NO 20-157-02589 REV IR AND EA NR 57-0819-20 REV 0 EWIS PROTECTION. REMOVED IAW AMM 20-60-07.

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