Summary
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Airbus Industrie Model A320 series airplanes. This proposal would require an inspection to detect moisture and migrated bushings of the guide fittings of the safety locking pins of the passenger doors, removal of any moisture, application of grease, and reinstallation of any migrated bushing. This proposal also would require installation of a greasing nipple on the guide fitting of the locking pin and on three telescopic rods on the passenger doors. This proposal is prompted by reports of difficulty opening the passenger doors due to jamming of the locking pin. The actions specified by the proposed AD are intended to prevent such jamming of the locking pin, which could result in inability to open the passenger door. This condition, if not corrected, could impede or delay passengers from exiting the airplane during an emergency.