Service difficulty report · Spar Web · Boeing 7377CT

Difficulty date
October 27, 2020
Submitted
July 28, 2021
Operation
Air carrier
Aircraft
N569WN
Make and model
Boeing 7377CT
Aircraft serial
33656
Aircraft time
60,893 hours, 31,093 cycles
System (JASC)
5711 · Wing Spar
Part
Spar Web
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*** RT WING FRONT SPAR WEB HAS CORROSION COMMON TO UPPER BOOST PUMP BONDING STRAP MOUNT LOCATION APPROXIMATELY IFSS 119; 10 INCHES FROM BOTTOM OF WEB / REPAIRED CORROSION DAMAGE ON R/W FRONT SPAR WEB COMMON TO UPPER BOOST PUMP BONDING STRAP LOCATION IAW ATS ER # 20-03545 REV IR AND CUSTOMER ACCEPTANCE SWA EA # 20-157-02310 REV IR.

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