Service difficulty report · Floorbeam · Boeing 7378H4

Difficulty date
March 21, 2023
Submitted
April 20, 2023
Operation
Air carrier
Aircraft
N8533S
Make and model
Boeing 7378H4
Aircraft serial
63577
Aircraft time
19,188 hours, 9,433 cycles
Part
Floorbeam
Condition
Corroded
Location
Zn 100 Fus Lower
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 CABIN FLOOR BEAM AT STA 947 LBL 26 (AFT LAV INBD MOUNT)<[01] REMOVED DAMAGE BY CUTTING OFF UPPER CORD OF FLOOR BEAM AT STA 947; LBL 58.60 TO RBL 58.60 PER SRM 53-70-51-2R-5;[02] 1. JAMES RINCK (TECHNICIAN); 24-MAR-2023 03:11 UTC<BR>REMOVED DAMAGE BY CUTTING OFF UPPER CORD OF FLOOR BEAM AT STA 947; LBL 58.60 TO RBL 58.60 PER SRM 53-70-51-2R-5<BR>PERFORMED DVI OF CUT OF UPPER CORD OF FLOOR BEAM AT STA 947; LBL 58.60 TO RBL 58.60 PER SRM 53-70-51-2R-5. NO FURTHER DEFECTS NOTED. OK TO CONTINUE REPAIR.;[12] REMOVED AND REPLACED FLOORBEAM UPPER T-CAP PER SRM 53-70-51-2R-5.;[13] VERIFIED 12. GREGORY BAXTER (TECHNICIAN); 10-APR-2023 17:51 UTC REMOVED AND REPLACED FLOORBEAM UPPER T-CAP PER SRM 53-70-51-2R-5.;[14] C/W REPAIR PER SRM 53-70-510R-5. SEE CORRECTIVE ACTIONS 1-13

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