SDR SCNA20190907137

Service difficulty report · Floorbeam · 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): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
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

PASSENGER COMPARTMENT FLOOR BEAM AT STA 986.5 LBL 43.5 CORRODED AT FASTENER HOLE ON TOP FLANGE. REMOVED CORROSION ON THE TOP FLANGE OF FLOORBEAM @ STA 986.5, LBL43.5. ORIGINAL THK .150", REMOVED .020", REMAINING THK .130", FOUND BEYOND ALLOWABLE DAMAGE LIMITS. CUT FLANGE (TOP) OF ENTIRE LENGHT OF FLOORBEAM, FABRICATED, LOCATED, DRILLED AND ISNTALLED FULL LENGHT, UPPER CHORD FLOORBEAM RPEAIR (STA 986.5, LBL 50 - RBL 50).

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