AD NUMBER: 2009-06-07
SUBJECT: Airworthiness Directive 2009-06-07
SUMMARY: We are adopting a new airworthiness directive
(AD) for Agusta S.p.A. Model AB139 and AW139 helicopters.
This AD results from mandatory continuing airworthiness
information (MCAI) issued by the European Aviation Safety Agency
(EASA), which is the Technical Agent for the Member States of the
European Community. The MCAI states: 'Operators had reported a
number of occurrences of in-flight losses of cockpit door windows,
both left and right side. This condition, if not corrected, could
result in damage to critical components.' The actions specified by
this AD are intended to require that cockpit door windows (windows)
be replaced with re-designed windows to prevent a window from
separating from the helicopter, contacting the tailboom or
tailrotor, resulting in loss of control of the helicopter.