Service difficulty report · Floorbeam · Boeing 7378H4

Difficulty date
April 12, 2021
Submitted
May 5, 2021
Operation
Air carrier
Aircraft
N8614M
Make and model
Boeing 7378H4
Aircraft serial
36908
Aircraft time
28,118 hours, 12,391 cycles
Part
Floorbeam
Condition
Corroded
Location
Bs 344
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

FWD CABIN WET AREA FLOOR STRUCTURE; STA344; LBL0; WL208; FLOORBEAM T-CAP FASTENER HOLE UPPER & LWR SURFACE; CORROSION; MRK'D. / REMOVED CORROSION FROM FWD CABIN WET AREA STA 344 LBL 0 WL 208 FLOOR BEAM T CAP IAW SRM 53-10-51-1A-1 AND INSPECTED W/ 10X MAG GLASS NO DEFECTS NOTED VERIFIED MATERIAL LOSS ORIGINAL T = .175 REMAINING T = .065 REMOVED = .110 LIMIT = .017 FOUND TO BE OUT OF LIMITS IAW SRM 53-10-51-1A-1 CUT AND REMOVED DAMAGED FLOOR BEAM FLANGE IAW SRM 53-00-51-2R-1 FABRICATED AND INSTALLED REPAIR PARTS IAW SRM 53-00-51-2R-1 APPLIED CIC TO REPAIR AREA IAW AMM 51-21-91-620-802 P/N 141A5505-19

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