SDR SCNA20190907139

Service difficulty report · Door Sill · Boeing 7378BK

Difficulty date: September 7, 2019
Submitted: September 11, 2019
Operation: Air carrier
Aircraft: N815SY
Make and model: Boeing 7378BK
Aircraft serial: 30623
Aircraft time: 52,916 hours, 30,056 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Door Sill
Condition: Corroded
Location: Fuselage
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

MAIN CABIN INNER MOPSIL CHORD IS CORRODED LOCATED AT L-2 DOOR AREA. REMOVED CORROSION ON INNER MOPSILL CHORD @STA 920, LBL60. ORIG THK .080" REMOVED .023" REMAINING THK .057". FOUND TO BE BEYOND ALLOWABLE DAMAGE LIMITS. REMOVED DAMAGED INNER MOPSILL CHORD, LOCATED, DRILLED AND INSTALLED NEW INNER MOPSILL CHORD, P/N 147A8540U7.

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