Service difficulty report · Winglet · Boeing 7378H4

Difficulty date
April 24, 2024
Submitted
June 7, 2024
Operation
Air carrier
Aircraft
N8318F
Make and model
Boeing 7378H4
Aircraft serial
36685
Aircraft time
38,855 hours, 18,136 cycles
Part
Winglet
Part number
UNKNOWN
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 AT RIGHT WINGLET UPPER TIP AFT EDGE.<[01] CUT OUT DAMAGED AREA WITH CORROSSION AT RIGHT WINGLET UPPER TIP AFT EDGE AS-PER SRM 57-30-01 REPAIR 6 FIG 201 DETAIL 2.TREATED PRIMED AND TOP COATED WORKED AREAS AT RIGHT WINGLET UPPER TIP AFT EDGE. AS-PER SOPM 20-44-04 AND AMM 57-21-21-300-801;[02] VERIFIED STEP 1

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