AD NUMBER: 2006-07-02
SUBJECT: Airworthiness Directive 2006-07-02
FAA is adopting a new airworthiness directive (AD) for certain
Bombardier Model DHC-8-301, -311, and -315 airplanes.
This AD requires replacing the pressure control valve of the
Type 1 emergency door. This AD results from reports that the
pressure control valve of the Type 1 emergency door is susceptible
We are issuing this AD to ensure that the pressure control valve
does not freeze and prevent the door seal from deflating, which
could result in the inability to open the door in an emergency.