Service difficulty report · Floorbeam · Boeing 737752

Difficulty date
April 19, 2023
Submitted
May 22, 2023
Operation
Air carrier
Aircraft
N7835A
Make and model
Boeing 737752
Aircraft serial
34294
Aircraft time
57,926 hours, 30,275 cycles
Part
Floorbeam
Condition
Cracked
Location
Zn 200 Fus Top
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

SUSPECT CRACK AT PASSENGER CABIN FWD SIDE OF FLOOR BEAM STA 294.5 RBL 51 WL 208.1 HAS A CRACK.<[01] ACCOMPLISHED DVI ON ADJACENT STRUCTURE AREAS; NO CRACKS; NO CORROSIONS OR OTHER DAMAGES NOTED. REF B737-7 SRM 53-10-51-2R-16 STEP 4.C.(4);[02] OK TO APPLY ALODINE AND PRIMER TO REPAIR PARTS AND TO THE CUTTED T CHORD.;[03] VERIFIED; ALODINE AND PRIMER APPLIED.;[04] RII. OK TO INSTALL REPAIR PARTS.;[05] REPAIRED FLOOR BEAM AT STA 294.5 FROM RBL25 TO THE END OF THE CHORD PER B737-700 SRM 53-10-51-2R-16 REP.16 FIG.202 DETAIL G.;[06] VERIFIED STEP 5. COMPLETION OF REPAIR PARTS AT FLOOR BEAM.;[07] VERIFIED STEPS ACCOMPLISHED.<BR>REMOVED AND REPLACED FLOOR BEAM AT STA 294.5 RBL 51.;[08] VERIFIED