Service difficulty report · Winglet · Boeing 7377H4

Difficulty date
May 13, 2025
Submitted
June 6, 2025
Operation
Air carrier
Aircraft
N961WN
Make and model
Boeing 7377H4
Aircraft serial
36962
Aircraft time
44,262 hours, 27,173 cycles
Part
Winglet
Condition
Corroded
Location
Zone 600
Stage of operation
IN
How discovered
V
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

(147-23) R/H WINGLET LOWER STRAKELET HAS CORROSION AT LOWER I/B SURFACE 21.5' FROM LOWER EDGE <[01]. REMOVED DAMAGE AND VERIFIED WITH A 10X MAGNIFYING GLASS I.A.W SRM 51-10-02-0G-0 AND SRM 57-31-01 (AP37. 1-0632). DAMAGE FOUND TO BE OUT OF LIMITS DUE TO 100% MATERIAL LOSS I.A.W SRM 57-31-01(AP37. 1-0632). REMOVED AND REPLACED STRAKELET TIP CAP I.A.W SRM 51-40-02-0G-0 & APB SUPPLEMENT-PARTS CATALOG 57-31-00-02; [02] AUDIT C/W.

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