Summary
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain McDonnell Douglas MD-90-30 series airplanes. This proposal would require replacement of the existing strake feed-thru and internal electrical connectors with new, moisture resistant connectors. This action is necessary to prevent moisture from entering the strake feed-thru and internal electrical connectors, which could lead to electrical arcing and a consequent fire in the electrical and electronic (E/E) compartment of the airplane. This action is intended to address the identified unsafe condition.