SDR DALA2024101009930

Service difficulty report · Floorbeam · Boeing 757251

Difficulty date: October 8, 2024
Submitted: October 10, 2024
Operation: Air carrier
Aircraft: N550NW
Make and model: Boeing 757251
Aircraft serial: 26497
Aircraft time: 60,967 hours, 26,009 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 5650 CORROSION ON TOP OF AFT MAIN CABIN FLOOR BEAM BS .1640 APROX RBL.58.5. DOT 129-103. CORRECTIVE ACTION: REMOVED CORROSION ON TOP OF AFT MAIN CABIN FLOOR BEAM BS.1640 APROX' RBL.58.5 IAW B 757 SRM 51-10-02, EVALUATED AREA FOUND TO BE OUT OF LIMITS, IAW B757 SRM 53-00-51-1A PROCEDURE 1, FIG 101 , DETAIL III,COMPLIED WITH ER/A 481634-14MA REV B TYPICAL UPPER FLOOR BEAM CAP BLEND REPAIR. (0598603)