Country
Switzerland

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

Date & Time: Nov 19, 1998 at 1538 LT
Type of aircraft:
Pilatus PC-6 (Porter & Turbo Porter)
Operator:
Registration:
9N-ABK
Flight Phase:
Landing (descent or approach)
Flight Type:
Positioning
Survivors:
No
Site:
Mountains
Schedule:
Kathmandu - Namche Bazar
MSN:
755
YOM:
1975
Location:
Namche Bazar
Sagarmatha
Country:
Nepal
Region:
Asia
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Aircraft flight hours:
5762
Circumstances:
The pilot, sole on board, departed Kathmandu-Tribhuvan Airport on a positioning flight to Namche Bazar to pick up passengers. During the pre-flight briefing, he was informed about the good weather conditions along the route and at destination. But en route, these conditions deteriorated and upon arrival, clouds were present up to 3,600 metres. He made several circuits expecting weather improvement. Few minutes later, he saw a hole in the clouds and initiated a descent when the aircraft struck the slope of Mt Kongri Himal located 3 km north of the airfield. The aircraft was destroyed and the pilot was killed.
Probable cause:
Controlled flight into terrain.

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

Date & Time: Aug 22, 1998
Type of aircraft:
Pilatus PC-6 (Porter & Turbo Porter)
Operator:
Registration:
FAP322
Flight Phase:
Takeoff (climb)
Flight Type:
Scheduled Revenue Flight
Survivors:
Yes
Site:
Airport (less than 10 km from airport)
MSN:
723
YOM:
1974
Location:
Iquitos-Moronacocha
Loreto
Country:
Peru
Region:
South America
Crew on board:
2
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
0
Aircraft flight hours:
2874
Circumstances:
Shortly after takeoff from Iquitos-Moronacocha Airport, while climbing, the single engine aircraft went out of control and crashed in the Moronacocha River bed. Both passengers escaped uninjured while both pilots were injured. The aircraft had also the civil registration OB-1167.

Crash of a Pilatus PC-6/B2-H4 Turbo Porter in Durba

Date & Time: Jan 31, 1998
Type of aircraft:
Pilatus PC-6 (Porter & Turbo Porter)
Operator:
Sicotra Aviation
Registration:
9Q-CZG
Flight Phase:
Flight
Flight Type:
Scheduled Revenue Flight
Survivors:
Yes
Site:
Airport (less than 10 km from airport)
MSN:
916
YOM:
1996
Location:
Durba
Orientale
Country:
Democratic Republic of Congo
Region:
Africa
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Crashed in unknown circumstances. There were no casualties.

Crash of a Pilatus PC-6/B2-H2 Turbo Porter in Boltigen: 5 killed

Date & Time: Nov 12, 1997 at 1440 LT
Type of aircraft:
Pilatus PC-6 (Porter & Turbo Porter)
Operator:
Registration:
V-630
Flight Phase:
Flight
Flight Type:
Military
Survivors:
No
Site:
Mountains
Schedule:
Payerne - Sankt Stephan
MSN:
747
YOM:
1975
Location:
Boltigen
Bern
Country:
Switzerland
Region:
Europe
Crew on board:
1
Crew fatalities:
Pax on board:
4
Pax fatalities:
Other fatalities:
Total fatalities:
5
Circumstances:
Taking part to a military exercise, the single engine aircraft departed Payerne AFB on a liaison flight to Sankt Stephan, Bern. While descending to Sankt Stephan Airfield in marginal weather conditions, the aircraft struck the ground and came to rest against a tall tree located in a hilly terrain near Boltigen, about 14 km north of the Sankt Stephan Airfield. The aircraft was destroyed by impact forces and a post crash fire and all five occupants were killed.
Probable cause:
Controlled flight into terrain. No technical anomalies were found on the aircraft.

Crash of a Pilatus PC-6/B2-H2 Turbo Porter in Laon: 9 killed

Date & Time: Nov 1, 1997 at 1140 LT
Type of aircraft:
Pilatus PC-6 (Porter & Turbo Porter)
Operator:
Centre Ecole Régional Parachutisme de Picardie
Registration:
F-GHXS
Flight Phase:
Takeoff (climb)
Flight Type:
Skydiving / Paratroopers
Survivors:
No
Site:
Airport (less than 10 km from airport)
Schedule:
Laon - Laon
MSN:
620
YOM:
1966
Location:
Laon-Chambry
Aisne
Country:
France
Region:
Europe
Crew on board:
1
Crew fatalities:
Pax on board:
8
Pax fatalities:
Other fatalities:
Total fatalities:
9
Captain / Total flying hours:
1192
Captain / Total hours on type:
24.00
Aircraft flight hours:
20315
Circumstances:
The single engine aircraft was engaged in a local skydiving flight on behalf of the CERP of Picardie. After takeoff from runway 35, while climbing to a height of about 1,000 feet, the aircraft rolled to the right, entered an uncontrolled descent and crashed in a swampy area located about 1,500 metres east of the airfield. The aircraft was totally destroyed and all nine occupants were killed.
Probable cause:
The accident was the result of a loss of pitch control of the aircraft following the appearance of extreme forces on the elevator control caused by placing the stabilizer in the full nose down position depth. The actions of the pilot on the flight controls led to this situation of aerodynamic locking of the elevator stabilizer control, presumably interpreted as a mechanical blockage of the system. This phenomenon, specific to airplanes equipped with such a stabilizer system depth and linked to the importance of the forces involved, was it not known to the pilot. The training on PC-6/B2-H4 that the pilot had followed as well as his weak experience on PC-6/B2-H2, associated with the ergonomics of the manual flaps and stabilizer, are contributing factors.
Final Report:

Crash of a Pilatus PC-6/B2-H2 Turbo Porter in Puerto Inírida: 9 killed

Date & Time: Aug 29, 1997 at 1900 LT
Type of aircraft:
Pilatus PC-6 (Porter & Turbo Porter)
Operator:
Registration:
FAC-1115
Flight Phase:
Landing (descent or approach)
Flight Type:
Military
Survivors:
No
Site:
Airport (less than 10 km from airport)
Schedule:
San Felipe – Puerto Inírida
MSN:
820
YOM:
1983
Location:
Puerto Inírida
Guainía
Country:
Colombia
Region:
South America
Crew on board:
2
Crew fatalities:
Pax on board:
7
Pax fatalities:
Other fatalities:
Total fatalities:
9
Aircraft flight hours:
3300
Circumstances:
On approach to Puerto Inírida Airport, the single engine airplane collided with a private Cessna 206 registered OB-1450 and carrying two passengers and one pilot. Both aircraft dove into the ground and crashed about 5 km from the airport. Both aircraft were destroyed and all 12 occupants were killed.

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

Date & Time: Nov 11, 1995
Type of aircraft:
Pilatus PC-6 (Porter & Turbo Porter)
Operator:
Registration:
1603
Flight Phase:
Flight
Flight Type:
Survey / Patrol / Reconnaissance
Survivors:
Yes
Site:
Plain, Valley
MSN:
2032
YOM:
1969
Location:
Bangkok
Bangkok City District
Country:
Thailand
Region:
Asia
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Crashed in unknown circumstances. There were no casualties.

Crash of a Pilatus PC-6/B1-H2 Turbo Porter in Spa

Date & Time: Jul 30, 1995
Type of aircraft:
Pilatus PC-6 (Porter & Turbo Porter)
Operator:
Turdus Airways
Registration:
PH-MEN
Flight Phase:
Landing (descent or approach)
Flight Type:
Skydiving / Paratroopers
Survivors:
Yes
Site:
Airport (less than 10 km from airport)
Schedule:
Spa - Spa
MSN:
707
YOM:
1969
Location:
Spa-La Sauvenière
Liège
Country:
Belgium
Region:
Europe
Crew on board:
1
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The single engine has completed a local skydiving mission and was returning to Spa-La Sauvenière Airport when, on final, it collided with a private Cessna 172 registered OO-SIW. Both aircraft went out of control and crashed near the airfield. While the pilot of the Cessna was killed, all three occupants on board the PC-6 were injured.

Crash of a Pilatus PC-6/B2-H2 Turbo Porter near Tehran: 1 killed

Date & Time: Apr 18, 1995
Type of aircraft:
Pilatus PC-6 (Porter & Turbo Porter)
Operator:
Registration:
4-9809
Flight Phase:
Flight
Flight Type:
Demonstration
Survivors:
No
Site:
Airport (less than 10 km from airport)
Schedule:
Tehran - Tehran
MSN:
833
YOM:
1984
Location:
Tehran
Tehran City District
Country:
Iran
Region:
Asia
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Circumstances:
The pilot, sole on board, was taking part to an airshow and completing a demonstration flight when the accident occurred in unknown circumstances. The aircraft was destroyed and the pilot was killed.
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