SDR SWAA2025121639499

Service difficulty report · Support Angle · Boeing 7377H4

Difficulty date: November 24, 2025
Submitted: December 16, 2025
Operation: Air carrier
Aircraft: N452WN
Make and model: Boeing 7377H4
Aircraft serial: 29846
Aircraft time: 71,355 hours, 42,914 cycles
System (JASC): 5720 · Wing Miscellaneous Structure
Part: Support Angle
Condition: Cracked
Location: Zone 500
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

CRACKED DEFLECTION CONTROL RIB, TRAILING EDGE SUPPORT ANGLE LOCATED AT ORSS 270, LT WING. REPLACED THE DEFLECTION CONTROL RIB TRAILING EDGE SUPPORT ANGLE LOCATED ORSS 270 LT WING IAW SRM 51-40-02-0G, AND SRM 51-10-02-0G, ITEM 9. CRACK MEASUREMENT: L=0.550 INCH.

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