Service difficulty report · Skin · Boeing 7377H4

Difficulty date
March 6, 2025
Submitted
April 2, 2025
Operation
Air carrier
Aircraft
N287WN
Make and model
Boeing 7377H4
Aircraft serial
32537
Aircraft time
57,968 hours, 35,069 cycles
Part
Skin
Condition
Corroded
Location
Zone 100
Stage of operation
IN
How discovered
E
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 WING CENTER SECTION UPPER SKIN LOC. AT STA 663.75 AND LBL 45.57 2025-168032 <[01]. TOOL USED ON STEP 4: EDDY CURRENT FLAW DETECTOR P/N:NORTEC 600D; S/N:220272512; DUE DATE:05-FEB-26.; [02] TOOL USED ON STEP 5: EDDY CURRENT FLAW DETECTOR P/N:NORTEC 600D; S/N:220272512; DUE DATE:05-FEB-26.; [03] TOOL USED ON STEP 7:ULTRASONIC THICKNESS GAGE P/N:45 MG; S/N:221860711; DUE DATE:20-DEC-25.; [04] PERFORMED PERMANENT REPAIR ON WING CENTER SECTION UPPER SKIN LOC. AT STA 663.75 AND LBL 45.57 EA #25-157-00651-WIP1 AND EA 25-157-00651. SEE INDIVIDUAL SIGN OFF BELOW.; [05] PERFORMED PERMANENT REPAIR ON WING CENTER SECTION UPPER SKIN LOC. AT STA 663.75 AND LBL 45.57 EA #25-157-00651-WIP1 AND EA 25-157-00651. SEE INDIVIDUAL SIGN OFF BELOW.

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