SDR SWAA2025110319098

Service difficulty report · Nut Plate · Boeing 7377H4

Difficulty date: September 28, 2025
Submitted: November 3, 2025
Operation: Air carrier
Aircraft: N915WN
Make and model: Boeing 7377H4
Aircraft serial: 36888
Aircraft time: 57,361 hours, 34,753 cycles
System (JASC): 5740 · Wing, Attach Fittings
Part: Nut Plate
Condition: Cracked
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

CRACK ON RAIL NUT-PLATE, OFSS 509 INTERNAL CAVITY LEADING EDGE AT RT WING. REPLACED RAIL NUT-PLATE LOCATED OFSS 509 INTERNAL CAVITY LEADING EDGE AT RT WING IAW SRM 51-10-02 ITEM 9 SRM 51-40-02, AND DWG 112A4402, REV -, SHEET 13. MEASUREMENT OF CRACK IS L: 0.240.

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