Service difficulty report · Spar Web · Boeing 7377H4

Difficulty date
February 28, 2020
Submitted
March 24, 2020
Operation
Air carrier
Aircraft
N424WN
Make and model
Boeing 7377H4
Aircraft serial
29828
Aircraft time
61,632 hours, 36,258 cycles
System (JASC)
5711 · Wing Spar
Part
Spar Web
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 REAR SPAR WEB CORRODED AT IRSS 145 RIGHT ABOVE BOOST PUMP, GROUNDING STRAP (JUMPER) MOUNT POSITION ACCOMPLISHED CORROSION DAMAGE REMOVAL AND INSPECTION ON L/H WING REAR SPAR WEB AT BOOST PUMP AND IRSS145 PER RES # 2015745-12 REV IR AND EA 1-757-16885 REV IR AS PERMANENT REPAIR

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