The second bag-drop location was on a plateau close to
the landing zone and was situated about 85 ft above a
dry riverbed. The plan was for the helicopter to
maneuver toward the plateau while ascending from the
riverbed. There were no lights in the river valley;
however, the production crew had placed lights on the
plateau and glowsticks and another light on the sloping
terrain leading up from the riverbed to the top of the
plateau. The flight began around 0330 and was conducted
with the pilot in the right-front seat, the actor in the
left-front seat, and the camera operator in the
left-rear seat. The flexible light pad was cupped to
direct the light toward the actor’s face.
Before takeoff, the camera operator asked the pilot if
they could try to use the light pad, and the pilot
responded, “we’ll see, it just really [sigh] blinds me.”
The camera operator then showed the actor how to operate
the light pad. The actor turned it on to the lowest
setting, and the camera operator remarked that it was
bright but that they would see what the pilot thought;
the pilot did not comment. During the initial takeoff
and while maneuvering over the dry riverbed, the actor
continued with scripted dialogue for about a minute
until the pilot intervened to state that he needed the
light pad turned off.
The camera operator acknowledged him and informed the
actor to turn off the light by pressing a button twice.
The actor leaned forward to turn off the light, and, 8
seconds later, the camera operator announced, “where did
uh, we’re going down low,” indicating that he was
temporarily disoriented and then noted that they were
descending. The actor cycled through the light’s
settings and eventually turned it off while the pilot
simultaneously stated, “okay, okay, I can’t.” The camera
operator interrupted saying, “pull up, pull up.” The
helicopter subsequently impacted terrain in the dry
riverbed. Postaccident examination of the wreckage
revealed no evidence of mechanical malfunctions or
anomalies that would have precluded normal operation.
The pilot recognized on the first flight that he was
operating with reduced/no visibility and with a bright
light in the cockpit that “blinded” him when it was on
but chose to proceed with both flights likely because he
believed that was what was required to fulfill the
production requirements. Despite recognizing the hazards
of the operation and relaying his concerns to the ground
crew and camera operator, the pilot was the only person
knowledgeable about helicopters. As the pilot, he was
responsible for the safe operation of the helicopter and
should have initiated the measures necessary to ensure
that the helicopter’s internal lighting and the lighting
on the ground would enable him to conduct the flight in
a safe manner.
The accident occurred during the hours of darkness on a
moonless night over minimally lighted terrain. According
to Federal Aviation Administration (FAA) guidance, these
conditions can result in illusions that make it
difficult for a pilot to visually determine altitude,
depth perception, and orientation, and often create the
illusion that the aircraft is at a higher altitude than
it actually is. Additionally temporary blindness, caused
by an unusually bright light, may result in illusions or
after images until the eyes recover from the brightness.
Based on the dark night conditions, the minimal ground
lighting, the bright light in the cockpit, and the
absence of preimpact mechanical anomalies, the pilot was
likely temporarily blinded by the light, lost visual
reference to the ground, and then flew the helicopter
into the ground.
Before the accident flight, the company submitted, and
an FAA inspector subsequently accepted, a proposed
Motion Picture Plan of Activities (POA). During his
review of the accident flight’s POA, the FAA inspector
had an opportunity to examine the proposed flight and
location and determine if the proposed flight activities
would be safe, but he failed to identify that the flight
would be conducted on a moonless night over terrain with
limited ground features and lights and to assess whether
the equipment that would be used for lighting and
filming would enable the pilot to conduct the flight in
a safe manner. It is likely that, if the inspector had
been fully aware of the conditions of the intended
operation, he might have identified that the proposed
flight activities were potentially unsafe. Although the
accident occurred outside the time that the POA was
valid, that did not contribute to the accident.
The National Transportation Safety Board determines the
probable cause(s) of this accident as follows:
The pilot’s decision to conduct a flight in dark night
conditions with an illuminated cockpit light that
degraded his visibility and his ability to identify and
arrest the helicopter’s descent while maneuvering, which
resulted in controlled flight into terrain. Contributing
to the accident was the Federal Aviation Administration
inspector’s failure to identify the video production’s
flight as being potentially dangerous during the review
of the proposed flight activities.
|