SDR SCNA20201201364

Service difficulty report · Floorbeam · Boeing 7378K2

Difficulty date: November 28, 2020
Submitted: December 1, 2020
Operation: Air carrier
Aircraft: N817SY
Make and model: Boeing 7378K2
Aircraft serial: 30392
Aircraft time: 65,543 hours, 25,167 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Condition: Corroded
Location: Cabin
Stage of operation: IN
How discovered: 9
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 ON FLOOR BEAM UPPER CAP SURFACE AT STA 328 RBL 54 WL 208. REMOVED DAMAGED SECTION OF FLOOR BEAM UPPER FLANGE FROM BS 328 RBL 1.10" TO RBL 65 WL 208, PER SRM 53-10-51-28-7 PARA 4, FABRICATED-1 T-CHORD PER SRM 53-10-51-2R-7 AND INSTALLED, PER ER 20-03582 SRM 51-40-02-0G-0 AND SRM 53-10-51-2R-7 REP 7.

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