SDR DALA2024092309320

Service difficulty report · Door Sill · Boeing 757251

Difficulty date: September 21, 2024
Submitted: September 23, 2024
Operation: Air carrier
Aircraft: N551NW
Make and model: Boeing 757251
Aircraft serial: 26498
Aircraft time: 58,814 hours, 25,824 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Door Sill
Condition: Corroded
Location: Zone 200
Stage of operation: IN
How discovered: 9
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 5651 #2 L/H DOOR SILL INNER CHORD AT STA.780 HAS AN AREA WITH LIGHT CORROSION. CORRECTIVE ACTION: REMOVED CORROSION, EVALUATED, AND FOUND TO BE OUT OF LIMITS IAW SRM. REMOVED, FABRICATED REPAIR AND INSTALLED NEW LH CREASE BEAM INBOARD CHORD SECTION BETWEEN STA 755 TO STA 788, REPAIR CHANNEL AND STRAP AT STA 788 IAW B757 SRM. (0568249)