AD NUMBER: 2007-01-05
MANUFACTURER: Sikorsky
SUBJECT: Airworthiness Directive 2007-01-05
SUMMARY: This amendment adopts a new airworthiness
directive (AD) for the specified Sikorsky Aircraft Corporation
(Sikorsky) model helicopters that requires, within a specified
time, creating a component history card or equivalent record. The
AD also requires recording the hours time-inservice (TIS) and the
external lift cycles (lift cycles) for each main gearbox input left
and right freewheel unit (IFWU) assembly. Also, the AD requires
calculating a moving average of lift cycles per hour TIS at
specified intervals on each IFWU assembly. The moving average is
used todetermine if an IFWU assembly is used in repetitive external
lift (REL) or non-REL helicopter operations. If an IFWU assembly is
used in REL operations, this AD requires a visual and dimensional
inspection of the IFWU assembly at specified intervals. This AD
also requires recording certain information and replacing each part
that is beyond the wear limits or that exhibits visual surface
distress with an airworthy part. In addition, this AD requires
permanently marking the REL IFWU camshafts and gear housings with
the letters "REL" on the surface of these parts. This amendment is
prompted by an accident in which the left and right IFWU assembly
on a helicopter slipped or disengaged resulting in both engines
over speeding, engine shutdowns, and loss of engine power to the
transmissions. The actions specified by this AD are intended to
prevent slipping in the IFWU assembly, loss of engine power to the
transmissions, and subsequent loss of control of the
helicopter.
Also: B-29 Superfortress Reunion, FAA Wants Controllers, Spirit Airlines Pulls Back, Gogo Galileo Van's Aircraft posted a short video recapping the goings-on around their reorganiz>[...]
Light Gun A handheld directional light signaling device which emits a brilliant narrow beam of white, green, or red light as selected by the tower controller. The color and type of>[...]
"The journey to this achievement started nearly a decade ago when a freshly commissioned Gentry, driven by a fascination with new technologies and a desire to contribute significan>[...]
"Our driven and innovative team of military and civilian Airmen delivers combat power daily, ensuring our nation is ready today and tomorrow." Source: General Duke Richardson, AFMC>[...]
Aircraft Conflict Predicted conflict, within EDST of two aircraft, or between aircraft and airspace. A Red alert is used for conflicts when the predicted minimum separation is 5 na>[...]