Service difficulty report · Skin · Boeing 7377H4

Difficulty date
May 16, 2025
Submitted
June 30, 2025
Operation
Air carrier
Aircraft
N295WN
Make and model
Boeing 7377H4
Aircraft serial
32541
Aircraft time
57,600 hours, 34,721 cycles
Part
Skin
Condition
Corroded
Location
Zone 100
Stage of operation
IN
How discovered
U
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

CUSTOMER REQUEST EVIDENCE OF CORROSION ON EXTERNAL SKIN VACUUM WASTE VENT CUTOUT LOCATED BTW S-21L TO S-22L STA 907 PLUS 10 INCH 2025-335136 <[01]. ON STEP 4; ULTRASONIC THICKNESS GAGE P/N: 45MG; S/N: 221859911; DUE DATE: 19-DEC-25.; [02] TOOL USED EDDY CURRENT EQUIPMENT PN: NORTEC 600D; SN: 240497907; DUE DATE: 27-AUG-25; [03] TOOL USED RADIOMETER PN. XRP-3000; SN. 1753759; DUE DATE. 30-JUN-25; [04] PERFORMED PERMANENT REPAIR ON EXTERNAL SKIN VACUUM WASTE VENT CUTOUT LOCATED BTW S-21L TO S-22L STA 907 PLUS 10 INCH IAW EA-25-153-01495. SEE INDIVIDUAL SIGN OFF BELOW.; [05] PERFORMED PERMANENT REPAIR ON EXTERNAL SKIN VACUUM WASTE VENT CUTOUT LOCATED BTW S-21L TO S-22L STA 907 PLUS 10 INCH IAW EA-25-153-01495. SEE INDIVIDUAL SIGN OFF BELOW. AS RII.

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