SDR U2RA486DHN046

Service difficulty report · Floorbeam · Boeing 7572Y0

Difficulty date: July 11, 2011
Submitted: July 13, 2011
Operation: Air carrier
Aircraft: N763CA
Make and model: Boeing 7572Y0
Aircraft serial: 26154
Aircraft time: 53,893 hours, 23,065 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Condition: Corroded
Location: Bs 1640
Part time: 53,893 hours, 23,065 cycles
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

REMOVED R4 DOOR SURROUNDING WEB & ATTACHING SUPPORTS FOR FLOORBEAM REPLACEMENT. THRESHOLD WEB - CORRODED OUT OF LIMITS. WEB SUPPORTS, (PN 146N5246-6 & -8) 100 PERCENT EXFOLIATION CORROSION. WEB SUPPORTS, (PN 146N8769-23 & -41) CORRODED OUT OF LIMITS. TOP OF FLOORBEAM CAP CORRODED AT FUSELAGE STA 1640, BETWEEN LBL55 - LBL61.

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