SDR DALA2025030501727

Service difficulty report · Floorbeam · Boeing 757232

Difficulty date: March 4, 2025
Submitted: March 5, 2025
Operation: Air carrier
Aircraft: N6708D
Make and model: Boeing 757232
Aircraft serial: 30480
Aircraft time: 77,460 hours, 30,020 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
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

SHIP 6708 CORROSION OUT LIMITS IN REF TO NRC 00368: CORROSION ON BEAM BTW STA 365 AND RBL 10 AND RBL 31 AT FLOOR STRUCTURE OF CABIN PAX ( W1), AREA IT IS OUT LIMITS PER B757 -200 SRM 53-00-51-1A PROCEDURE 1 ALLOWABLE DAMAGE 1 FIG. 101 DETAIL III. CORRECTIVE ACTION: SUMMARY OF NRC 00543: BEAM BTW STA 365 AND RBL 10 AND RBL 31 AT FLOOR STRUCTURE OF CABIN PAX WAS REPAIRED DUE CORROSION LEVEL 2 PER B757-200 SRM 53-00-51-2R PROCEDURE 11 REPAIR 11.