Action
Notice of proposed rulemaking (NPRM).
Summary
We propose to adopt a new airworthiness directive (AD) for the specified Pacific Scientific seat restraint rotary buckle assemblies (buckle). This proposed AD is prompted by several reports of a cracked handle on certain buckles. Testing on these buckles indicates that in some circumstances a load placed on the restraint system prevents a strap from releasing as intended when the buckle is rotated. The proposed actions are intended to replace cracked buckle handles and allow the release of the restraint system strap in an emergency.