Service difficulty report · Floorbeam · Boeing 75733N

Difficulty date
June 18, 2019
Submitted
June 22, 2019
Operation
Air carrier
Aircraft
N75861
Make and model
Boeing 75733N
Aircraft serial
32585
Aircraft time
57,249 hours, 17,635 cycles
Part
Floorbeam
Part number
143N50131
Condition
Corroded
Location
Bs 680
Stage of operation
IN
How discovered
V
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

B757-53-3-0480 CORROSION ON MAIN CABIN FLOOR BEAM UPPER SURFACE AT STA 680 RBL-53 REF. ST. ENGINEERING N/R 0065606 FOUND CORROSION OUT OF LIMIT IAW B757-300 SRM 53-30-51 L=1.3,W=. 8,D=.037 ON CABIN FLOOR BEAM AT STA 680 RBL 53 AND ACCOMPLISHED PERMANENT REPAIR IAW B757-300 SRM 53-00-51-R8 FIG 20 FOUND CORROSION OUT OF LIMIT STA 680 RBL 53 AND ACCOMPLISHED PER MANENT REPAIR IAW B757-300 SRM 53-00-51-R8 FIG.201.

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