Service difficulty report · Rib · Boeing 7377H4

Difficulty date
June 24, 2026
Submitted
June 30, 2026
Operation
Air carrier
Aircraft
N476WN
Make and model
Boeing 7377H4
Aircraft serial
32475
Aircraft time
72,478 hours, 43,562 cycles
Part
Rib
Condition
Cracked
Location
Zone 500 Flap
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

POSSIBLE CRACK INDICATION ON LT OTBD AFT FLAP INBOARD CLOSURE RIB UPPER HOLE AT 7 O'CLOCK POSITION. R & R T/E AFT FLAP LT OTBD IAW AMM 27-51-22, NO DEFECTS NOTED.

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