SDR SWAA2026071772761

Service difficulty report · Skin · Boeing 7377H4

Difficulty date: June 12, 2026
Submitted: July 18, 2026
Operation: Air carrier
Aircraft: N930WN
Make and model: Boeing 7377H4
Aircraft serial: 36636
Aircraft time: 55,646 hours, 33,976 cycles
System (JASC): 5730 · Wing, Plate/Skin
Part: Skin
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

CORROSION LOWER SKIN INTERNAL CAVITY OF LEADING EDGE AT LEVEL OFSS 575 AT RT WING. REPAIRED RT WING, OUTER WING, LWR SKIN PANEL NR 2, INNER SURFACE, BTW WSTA 537.50 (RIB 18) & WSTA 591.50 (RIB 20) AND FRONT SPAR LEVEL IAW EA 26-157-01701-WIP1, AND EA 26-157-01701.

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