Service difficulty report · Spar · Boeing 7377H4

Difficulty date
July 10, 2020
Submitted
August 25, 2021
Operation
Air carrier
Aircraft
N720WN
Make and model
Boeing 7377H4
Aircraft serial
27854
Aircraft time
74,929 hours, 44,674 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*** ON RIGHT WING REAR SPAR AROUND BOOST PUMP UPPER BONDING JUMPER IRSS145. MARKED / CORROSION ON RIGHT WING REAR SPAR AROUND BOOST PUMP UPPER BONDING JUMPER IRSS 145 WAS REPAIRED ON ATS ER 20-02904 REV IR AND SWA EA 20-157-01189 REV IR.

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