SDR CALA2014051500598

Service difficulty report · Floorbeam · Boeing 737824

Difficulty date: May 14, 2014
Submitted: June 3, 2014
Operation: Air carrier
Aircraft: N27246
Make and model: Boeing 737824
Aircraft serial: 28956
Aircraft time: 46,236 hours, 16,938 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Part number: 147A55067
Condition: Corroded
Location: Fuselage
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

SEVERAL AREAS OF CORROSION WERE FOUND ON THE FLOORBEAM UPPER SURFACE OF MAIN DECK SMAX=0.5"X0.2" STATION 986.5 LBL 30 - LB 45. CUT & REMOVED THE DAMAGED FLANGE BETWEEN LBL 40 & RBL 40, LBL 40 & LBL 60 & RBL 40 & RBL 60. LOCATED & DRILLED UP T CHORD, SHEAR TIES & INTERCOSTALS. INSTALLED THE REPAIR PARTS IAW SRM 53-70-51 R4 REV 50-CONT & INSTALLED THE ADJACENT STRUCTURE. APPLIED CIC TO THE REPAIRED AREA.