SDR SCNA20201201370

Service difficulty report · Channel · Boeing 7378K2

Difficulty date: November 23, 2020
Submitted: December 1, 2020
Operation: Air carrier
Aircraft: N817SY
Make and model: Boeing 7378K2
Aircraft serial: 30392
Aircraft time: 65,543 hours, 25,167 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Channel
Condition: Corroded
Location: L2 Door Sill
Stage of operation: IN
How discovered: 9
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 L2 DOOR MOP SILL STA 947 TO STA 986 WL 208. CORROSION ON AFT ENTRY DOOR LOWER MAIN SILL INNER CHORD STA 947-986 WL 208, FOUND TO BE OUT OF LIMITS, IAW SRM 53-70-51-1A-1 FIG 103 DETAIL D. REMOVED AND REPLACED DAMAGED INNER CHORD, IAW SRM 51-40-02-0G-0 AND BOEING DWG 147A8501.

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