Crash of a Pilatus PC-6/B2-H4 Turbo Porter off Brasilito: 6 killed

Date & Time: Jul 16, 2005 at 0945 LT
Operator:
Registration:
N908PL
Flight Phase:
Survivors:
No
Schedule:
Tamarindo - Tamarindo
MSN:
908
YOM:
1994
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
5
Pax fatalities:
Other fatalities:
Total fatalities:
6
Circumstances:
The single engine aircraft departed Tamarindo on a sightseeing flight with five passengers and one pilot on board. While flying at low height, the aircraft went out of control and crashed in the sea some 1,300 metres offshore. The aircraft sank by a depth of 50 metres and all six occupants were killed.

Crash of a Pilatus PC-6/B2-H2 Turbo Porter in Las Lomitas

Date & Time: Sep 6, 2003
Operator:
Registration:
GN-809
Flight Phase:
Schedule:
Las Lomitas - Las Lomitas
MSN:
807
YOM:
1980
Country:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Crashed in unknown circumstances in Las Lomitas. Occupant fate unknown.

Crash of a Pilatus PC-6/C-H2 Turbo Porter in Vigo Park

Date & Time: Aug 28, 2003 at 1700 LT
Operator:
Registration:
N394R
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Bishop - Dalhart
MSN:
599
YOM:
1966
Location:
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
33000
Captain / Total hours on type:
10004.00
Aircraft flight hours:
15120
Circumstances:
During cruise flight, the 33,000-hour pilot stated that the airplane encountered "extreme clear air turbulence followed by three jolts in rapid succession." He "heard a loud pop as he jerked the throttle to the flight idle position." As the airspeed was slowing, the pilot attempted to add power. The "throttle would not move from the flight idle position and the propeller went into BETA." The airplane pitched downward as the pilot continued to try and "push the throttle lever forward." The airplane established "a rate of descent in excess of 10,000 feet per minute at a near vertical attitude." The pilot initiated an evacuation of the airplane and deployed his parachute (the pilot was wearing a sport parachute during the flight). Subsequently, the airplane impacted terrain. During a post accident examination, no mechanical anomalies were noted on the airframe, propeller, or engine that could have caused the accident. The reason for the loss of propeller pitch control could not be determined.
Probable cause:
The loss of propeller pitch control for undetermined reasons.
Final Report:

Crash of a Pilatus PC-6/B2-H2 Turbo Porter off Forte dei Marmi: 1 killed

Date & Time: Aug 15, 2002 at 1550 LT
Operator:
Registration:
F-GLTP
Flight Phase:
Survivors:
Yes
Schedule:
Massa - Massa
MSN:
691
YOM:
1969
Country:
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Captain / Total flying hours:
1857
Captain / Total hours on type:
761.00
Aircraft flight hours:
8888
Circumstances:
The single engine aircraft departed Massa-Cinquale Aerodrome with 10 skydivers and one pilot on board. Once the altitude of 13,000 feet was reached, all 10 skydivers jumped. During the descent, the aircraft became unstable, entered an uncontrolled descent and crashed in the sea about 50 metres off Forte dei Marmi. The aircraft was totally destroyed and the pilot was killed.
Probable cause:
The accident occurred due to a loss of control of the aircraft following the separation of the right wing, due to the structural failure produced at the sub-wing attack of the bracing section. In particular, in the light of what has been highlighted, it is believed that the accident was caused by a fatigue damage mechanism which, developed without being detected, significantly reducing the residual section of the right sub-alar attack of the trunk. This suddenly led to the structural failure of the right wing and the consequent loss of control of the aircraft that crashed in the sea.
Final Report:

Crash of a Pilatus PC-6/B2-H4 Turbo Porter in Namur: 1 killed

Date & Time: Jun 9, 2002 at 1545 LT
Registration:
OO-NAP
Flight Phase:
Survivors:
Yes
Schedule:
Namur - Namur
MSN:
914
YOM:
1995
Location:
Country:
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
10
Pax fatalities:
Other fatalities:
Total fatalities:
1
Circumstances:
The single engine airplane was engaged in a local skydiving flight at Namur-Temploux Airfield, carrying 10 skydivers and one pilot. Shortly after takeoff, while in initial climb, the aircraft stalled from the tail and crashed near the runway end. A passenger was killed while 10 other occupants were seriously injured. The aircraft was destroyed.
Probable cause:
The Swiss manufacturer Pilatus had informed all operators of this type of aircraft for several years now about the use of the trim system. Several accidents involving Pilatus PC-6's in recent years had been attributed to errors made by pilots not positioning the stabilizers in the correct position for takeoff. Here again, investigations revealed that the pilot positioned the stabilizers in an angle that contributed to the stall of the aircraft.

Crash of a Pilatus PC-6 Turbo Porter in Breitscheid

Date & Time: Jun 1, 2002 at 1156 LT
Operator:
Registration:
D-FEAR
Flight Phase:
Survivors:
Yes
Schedule:
Breitscheid - Breitscheid
MSN:
748
YOM:
1975
Country:
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
8
Pax fatalities:
Other fatalities:
Total fatalities:
0
Aircraft flight hours:
8000
Circumstances:
Shortly after takeoff from Breitscheid Airfield, while climbing to a height of about 10-15 metres, the single engine airplane stalled and crashed beside the runway. All nine occupants (eight skydivers and one pilot) were uninjured while the aircraft was damaged beyond repair.

Crash of a Pilatus UV-20A Turbo Porter in Marana: 1 killed

Date & Time: Mar 15, 2002 at 1000 LT
Operator:
Registration:
79-23253
Flight Phase:
Survivors:
No
Schedule:
Marana - Marana
MSN:
802
YOM:
1979
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Captain / Total flying hours:
6187
Captain / Total hours on type:
31.00
Aircraft flight hours:
6267
Circumstances:
A US Army Pilatus UV-20A collided in midair with a Cessna 182C during parachute jumping operations. The collision occurred about 4,800 feet mean sea level (msl) (2,800 feet above ground level (agl)) on the northeast side of runway 12 abeam the approach end. Both aircraft had made multiple flights taking jumpers aloft prior to the accident. The Pilatus departed runway 12 about 5 minutes prior to the Cessna's departure on the same runway. The drop zone was on the airport west of the intersections of runways 12 and 03. The Pilatus departed to the south and began a climb to the jump altitude of 5,500 feet msl, which was 3,500 feet agl. The pilot began the jump run on the southwest side of the runway paralleling it on a heading of about 300 degrees and when he was 1 to 2 minutes from the drop zone broadcast the intent to drop jumpers. The first jumper stated that it normally took him between 1 minute and 1 minute 15 seconds to reach the ground. As he neared the ground he observed everyone running toward the crash site. The Cessna pilot had four jumpers on board and said that his usual practice is to plan his climb so that the jump altitude (5,000 to 5,500 feet msl) is reached about the same time that the aircraft arrives over the jump zone. He departed runway 12 and made a wide sweeping right turn around the airport to set up for the jump. As the Pilatus neared the jump zone the Cessna was greater than 1,000 feet lower and west of the Pilatus climbing on a northerly heading. The Cessna pilot planned to make a right turn to parallel the left side of runway 12, and then turn right toward the drop zone. The jumpers in the Cessna looked out of the right side, and watched the Golden Knights exit their airplane. The jumpers said that their altimeters read 2,500 feet agl. The Cessna pilot turned to a heading of 120 degrees along the left side of the approach end of runway 12. He heard the Pilatus pilot say on Common Traffic Advisory Frequency that the Pilatus was downwind for runway 12. Based on witness observations, at this point the Pilatus was in a descending turn heading generally opposite to the downwind heading on the northeast side of the runway. Everyone in the Cessna heard a loud bang, the Cessna pilot felt something hit him in the head, and the airplane pitched down and lost several hundred feet of altitude. He noticed a blur of yellow and white out of his left window. The lead jumper decided that they should exit, and they all jumped. The Cessna pilot decided that the airplane was controllable, and landed safely. Both civilian and military witnesses on the ground heard the Pilatus pilot call downwind for runway 12. About 10 seconds later they heard intense transmissions over the loud speaker, and looked up and observed the Pilatus in a nearly vertical, nose down slow spiral. There was an open gash in the top of the Cessna's cabin on the left side near the wing root. The green lens and its gold attachment fitting from the Pilatus were on the floor behind the pilot's seat.
Probable cause:
The failure of both pilots to maintain an adequate visual lookout. The failure of the Pilatus pilot to report his proper position was a factor.
Final Report:

Crash of a Pilatus PC-6/B2-H2M-1 Turbo Porter in Altenrhein

Date & Time: Jan 29, 2002
Operator:
Registration:
V-615
Flight Phase:
Flight Type:
Survivors:
Yes
MSN:
635
YOM:
1967
Country:
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
On takeoff, the pilot lost control of the airplane that crashed in a grassy area beside the runway. The pilot, sole on board, was uninjured and the aircraft was damaged beyond repair.