SDR CALA2025120911935

Service difficulty report · Floorbeam · Boeing 737724

Difficulty date: December 5, 2025
Submitted: December 9, 2025
Operation: Air carrier
Aircraft: N27734
Make and model: Boeing 737724
Aircraft serial: 28949
Aircraft time: 81,402 hours, 28,609 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Part number: 147A56766
Condition: Corroded
Location: Zone 200
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

CORROSION AFT WET AREA LATERAL PANEL BREAK BS 947.5+4 BETWEEN RBL 27 AND 49. REMOVED AND REPLACED FLOORBEANM AT BS 947.5+4.0", BETWEEN RBL-27 AND RBL-49, IAW SRM 51-40-02-0G-0 AND DWG 147A5650. REMOVED AND REPLACED FLOORBEAM, BS 947.5+4.0", BETWEEN RBL 27 AND RBL 49, IAW SRM 51-40-02-0G-0 AND DWG 147A5650.