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Negócios · 11/08/19971 min de leitura

Airworthiness Directives; McDonnell Douglas Model DC-9-10, -20, - 30, -40, and -50 Series Airplanes, and C-9 (Military) Airplanes

Tradução automática local · Idioma original da fonte

Resumo

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain McDonnell Douglas Model DC-9-10, -20, -30, -40, and -50 series airplanes, and C-9 (military) airplanes. This proposal would require a one-time visual inspection to determine if all corners of the aft lower cargo doorjamb have been previously modified. This proposal also would require low frequency eddy current inspections to detect cracks of the fuselage skin and doubler at all corners of the aft lower cargo doorjamb, various follow- on repetitive inspections, and modification, if necessary. This proposal is prompted by fatigue cracks found in the fuselage skin and doubler at the corners of the aft lower cargo doorjamb. The actions specified by the proposed AD are intended to detect and correct such fatigue cracking, which could result in rapid decompression of the fuselage and consequent reduced structural integrity of the airplane.

Idioma original da fonte: Federal Register — Federal Aviation AdministrationAbrir o comunicado original →

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