SDR EIA2004120

Service difficulty report · Keelbeam · Boeing 747SR46

Difficulty date: September 30, 2004
Submitted: November 2, 2004
Operation: Air carrier
Aircraft: N477EV
Make and model: Boeing 747SR46
Aircraft serial: 20784
Aircraft time: 69,735 hours, 34,328 cycles
System (JASC): 5314 · Fuselage Main, Keel
Part: Keelbeam
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

CORROSION CRACK, KEEL BEAM, RT LWR CHORD IB LEG AT STA 1313. TRIM 5.0 INCHES INBOARD LWR FLANGE OF VERTICAL AND HORIZONTAL LEGS. HFEC INSPECTED, FOUND CRACK AND CORROSION FREE. SHOT PEENED AND REFINISHED PER EN EA 53-0827. BOEING MESSAGE 1-OJ18O, 1-OUNOI, AND 1-P5OSK.

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