Service difficulty report · Structure · Boeing 7377H4

Difficulty date
February 13, 2025
Submitted
March 24, 2025
Operation
Air carrier
Aircraft
N289CT
Make and model
Boeing 7377H4
Aircraft serial
36633
Aircraft time
57,118 hours, 34,525 cycles
Part
Structure
Condition
Corroded
Location
Zone 200
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

CORROSION ON INNER CHORD AT MID CABIN BS696; BS704 RBL63 WL208. MARKED <[01] REMOVED CORROSION IN MULTIPLE AREAS AREAS BS695 RBL63 WL 208 BLEND WAS .080'X.070'X.003; BS696 RBL63 WL 208 WAS .009'X.007'X.003'; BS704 RBL63 WL 208 WAS 1'X.080'X.004'; BS 706 RBL63 WL 208 WAS 1.1'X.070'X.005'. BLENDS WERE OUT OF LIMITS DUE TO MORE THAN 3 FASTENERS IN A GROUP OF 10 REMOVED IAW SRM 53-40-13-1A-1 FIGURE 103 DETAIL F. DEPTH GAUGE ID ATS1225 DUE 07/2025 AND MAINTENANCE WAS ACCOMPLISHED ON STEPS 1-5 AND FAULT#TTG8Q00YSN0V; [02] VERIFIED RII ITEMS COMPLETE; [03] TASK COMPLETE.

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