Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
December 3, 2021
Submitted
December 27, 2021
Operation
Air carrier
Aircraft
N455WN
Make and model
Boeing 7377H4
Aircraft serial
32462
Aircraft time
58,698 hours, 34,771 cycles
Part
Floorbeam
Condition
Corroded
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CORROSION ON TOP OF FLOOR BEAM AT STA 312; LBL10. REMOVED CORROSION. MATERIAL ORIGINAL THICKNESS .125' MATERIAL REMAINING .095' FOUND TO BE OUT OF LIMITS IAW SRM 53-10-51-1A-1. SHOT PEENED THE BLENDED AREA IAW SRM 53-1-51-2R-15, REPAIR 15. PERFORMED A DVI OF THE DAMAGED AREA ; NO LOOSE OR MISSING FASTENERS ; NO CRACKS OR WORN AREAS ; NO CORROSION IN THE DAMAGED AREA. FABRICATED TAPER SHIMS AND STRAP. APPLIED CHEMICAL CONVERSION COATING REPAIR PARTS IAW SRM 53-1-51-2R-15 REP. 15. APPLIED PRIMER IAW SRM 53-1-51-2R-15 REP 15. INSTALLED ALL REPAIR PARTS IAW SRM 53-1-51-2R-15 REP. 15.

More about the Boeing 737-7H4