SDR CALA2023110803309

Service difficulty report · Floorbeam · Boeing 737724

Difficulty date: November 3, 2023
Submitted: November 8, 2023
Operation: Air carrier
Aircraft: N13718
Make and model: Boeing 737724
Aircraft serial: 28937
Aircraft time: 76,392 hours, 27,739 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Part number: 147A5504
Condition: Corroded
Location: Sta 947.5
Stage of operation: IN
How discovered: O
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 AFT WET AREA FLOOR BEAM AT STA 947.5 UNDER LAVATORY FITTING BTW RBL50 TO RBL54 (REF. AAR NR 99989272) REPAIRED FLOOR BEAM ON AFT WET AREA STA 947.5 FROM RBL 50 TO RBL SOPM 20-10-03, 20-20-02, 20-41-02, 20-30-02, 20-30-03, BAC 5000 54, ALL WORK PERFORMED IAW B737-700 SRM 51-40-02-05-0, 53-70-51 (SFR #1034214) 53-70-51-2R-5, 51-40-05-0G-0, 51-20-01-0G-0,51-20-05-0G-0 067, AMM 20-60-07-913-801, 51-21-41-370-803, NDTM 51-00-00.