SDR SWAA2022121271347

Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date: November 15, 2022
Submitted: December 12, 2022
Operation: Air carrier
Aircraft: N267WN
Make and model: Boeing 7377H4
Aircraft serial: 32525
Aircraft time: 52,811 hours, 31,569 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Condition: Corroded
Location: Bs 986 Lbl 48
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 THE BS 986.5 FLOORBEAM UPPER FLANGE AT LBL 48, WL 208.1. REMOVED CORROSION IAW SRM 53-70-51-1A-1 PARA 4H, FIG 103, DETAIL C. HFEC INSPECTED CUT OUT AREA IAW NDTM PART 6 51-00-00, PROCEDURE 23. NO CRACKS NOTED. HFEC INSPECTED OPEN HOLES IAW NDTM PART 6 51-00-00, PROCEDURE 16. NO CRACKS NOTED. REINSTALLED NUTPLATE NR 3 IAW SRM 51-40-02-0G-0.

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