Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
December 20, 2022
Submitted
January 23, 2023
Operation
Air carrier
Aircraft
N272WN
Make and model
Boeing 7377H4
Aircraft serial
32527
Aircraft time
52,973 hours, 31,748 cycles
Part
Floorbeam
Condition
Corroded
Location
Bs 295 Rbl 11
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 BS 294.5 WL 208, RBL 11, FLOORBEAM UPPER FLANGE WAS CORRODED AND FOUND OUT OF LIMITS IAW SRM 53-10-51-1A-1. FABRICATED LOCATED AND DRILLED EXTRUSION IAW SRM 53-10-51-2R-16. FLAP PEENED CUT EDGE OF EXISTING CHORD IAW SOPM 20-10-03& SRM 53-10-51-2R-16. FABRICATED A STRAP, & TAPERED FILLERS. APPLIED CHEMICAL CONVERSION COATING AND PRIMER IAW SRM 53-10-51-2R-16. LOCATED, TRIMMED, AND DRILLED ANGLES AND STRAP IAW SRM 53-10-51-2R-16. TREATED AND PRIMED REPAIR ANGLES IAW SRM 53-10-51-2R-16. INSTALLED REPAIRS IAW SRM 53-10-51-2R-16, AND SRM 51-40-02-0G-0.

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