SDR SWAA2022020886619

Service difficulty report · Web · Boeing 7377H4

Difficulty date: January 30, 2018
Submitted: February 8, 2022
Operation: Air carrier
Aircraft: N763SW
Make and model: Boeing 7377H4
Aircraft serial: 27877
Aircraft time: 63,712 hours, 37,161 cycles
System (JASC): 5310 · Fuselage Main, Structure
Part: Web
Condition: Corroded
Location: Aft Cargo Thresh
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

AAI INSPECTION: AFT CARGO LOWER SILL WEB NEEDS REMOVED TO ACCESS REPAIR AT STA 798-817 FOR AGING ACFT INSPECTION UPON REMOVAL FOUND CORROSION ON UPPER SURFACE / REMOVED CORROSION ON UPPER SURFACE OF AFT CARGO LOWER SILL WEB ORIGINAL THICKNESS .045' MATERIAL REMOVED .006' ; MATERIAL REMAINING .039' MATERIAL IS OUT OF LIMITS IAW SRM 53-60-15-1A-1 REMOVED AND REPLACED AFT CARGO LOWER SILL WEB IAW SRM 51-40-02-0G-0 & BOEING DWG 146A8123 ATAG#WN7393

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