SDR FDEA201907011442

Service difficulty report · Floorbeam · Boeing 75728A

Difficulty date: July 1, 2019
Submitted: July 11, 2019
Operation: Air carrier
Aircraft: N970FD
Make and model: Boeing 75728A
Aircraft serial: 28166
Aircraft time: 65,850 hours, 22,585 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Part number: 141N51111
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

COCKPIT STA.345 BETWEEN LBL5-LBL 24 FLOORBEAM CORRODED. CORROSION ON EXISTING FLOORBEAM "T "CAP REPAIR OUT OF LIMITS, REMOVED EXISTING "T" CHORD ANGLE & REPAIR SPLICES, CUT OUT FLOORBEAM FROM RBL.12 TO RBL.53,FABRICATED NEW "T" CHORD & REPAIR PARTS & INSTALLED NEW FLOOR BEAM "T" CAP REPAIR AT STA.345 FWD ENTRY FLOOR IAW SRM 53-00-51-2R REPAIR 10 DETAIL II, FROM LBL.52 TO RBL.53.

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