Service difficulty report · Spar · Boeing 7377H4

Difficulty date
July 26, 2021
Submitted
September 7, 2021
Operation
Air carrier
Aircraft
N442WN
Make and model
Boeing 7377H4
Aircraft serial
32459
Aircraft time
60,608 hours, 35,906 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 IFSS120 APPROX AT RT WING ; 2021-341016 / [01] TOOL USED: P/N: NORTEC 600D; S/N: 200048001; CAL DUE DATE: 24-FEB-22; [02] TOOL USED: 45MG; S/N: 130060401; DUE DATE: 22-APR-2022; [03] TOOL USED DIGITAL CALIPER P/N: DIGITAL 150 S/N:AE-412610 DUE DATE:21-MAY-22.; [04] TOOL USED DIGITAL CALIPER P/N: DIGITAL 150 S/N:AE-412610 DUE DATE:21-MAY-22.; [05] TOOL USED: BONDING METER; P/N: C15292 S/N: 1956 DUE DATE: 15/JAN/22; [06] SUMMARY EA 21-157-02379 HAS BEEN APPROVED; ACTIVATED; AND ADDED AS A SUBTASK TO FAULT TTG8Q005Y61H.; [07] REPAIRED FRONT SPAR WEB LOCATED FUEL BOOST PUMP IFSS120 APPROX AT RT WING IAW EA# 21-157-02379-WIP1 REV 3 AND EA# 21-157-02379 REV 1. THIS REPAIR IS CLASSIFIED AS MINOR AND CATEGORY A. NOT FURTHER ACTION OR INSPECTION REQUIRED.; [08] REPAIRED FRONT SPAR WEB LOCATED FUEL BOOST PUMP IFSS120 APPROX AT RT WING IAW EA# 21-157-02379-WIP1 REV 3 AND EA# 21-157-02379 REV 1. THIS REPAIR IS CLASSIFIED AS MINOR AND CATEGORY A. NOT FURTHER ACTION OR INSPECTION REQUIRED... RII ITEM

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