SDR CALA2025101610169

Service difficulty report · Floorbeam · Boeing 737924ER

Difficulty date: October 8, 2025
Submitted: October 16, 2025
Operation: Air carrier
Aircraft: N61898
Make and model: Boeing 737924ER
Aircraft serial: 62815
Aircraft time: 27,224 hours, 10,265 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Part number: 147A5504
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

AFTER REMOVAL OF HARD POINTS FOUND CORROSION OUT OF LIMITS ON FLOORBEAM STA 947 BETWEEN RBL 30 AND RBL 55 (REF AAR NR 100005391 1 ) REPAIRED, INSTALLED REPAIR PARTS ON FLOOR BEAM STA 947 BETWEEN RBL 30 AND RBL 55 ALL WORK DONE IAW B373-800 SRM 53-70-51-2R-5, FROM STEP 4, A THRU STEPS 4, P AND SRM 51-40-05-0G-0, SRM 51-40-02-0G-0, AMM 20-60-07-913-801, SRM-51-20-01-0G-0, DRAWING 147A5650 INSTL.