SDR SWAA2020102621261

Service difficulty report · Crease Beam · Boeing 7377H4

Difficulty date: October 6, 2020
Submitted: October 26, 2020
Operation: Air carrier
Aircraft: N205WN
Make and model: Boeing 7377H4
Aircraft serial: 34010
Aircraft time: 54,001 hours, 32,013 cycles
System (JASC): 5310 · Fuselage Main, Structure
Part: Crease Beam
Condition: Corroded
Location: Rt Fuselage
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 INNER CREASE BEAM CHORD AT BS 727 RBL 60 WL 208. REMOVED CORROSION ON CREASE BEAM INNER CHORD IN AREA OF 4' BY 1'. LOWEST REMAINING THICKNESS IS 0.060', OUT OF LIMITS, PER SRM 53-40-13-1A-1. REMOVED CREASE BEAM INNER CHORD BS 673-727+5 RBL 75 WL 208, PER SRM 51-40-02-0G-0. INSTALLED NEW CREASE BEAM INNER CHORD, PER SRM 51-40-02-0G-0 DWG 144A5900 DWG 144A5700 AND DWG 140A9861.

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