Crash of a Pilatus PC-6/B1A-H2 Turbo Porter in Los Chorrilos: 2 killed

Date & Time: Jan 20, 1978
Operator:
Registration:
0674/6-G-1
Flight Phase:
Flight Type:
Survivors:
Yes
MSN:
2034
YOM:
1971
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
4
Pax fatalities:
Other fatalities:
Total fatalities:
2
Circumstances:
Crashed for unknown reasons just after takeoff from a terrain located in Los Chorrilos, about 60 km northwest of Río Grande, Tierra del Fuego. Two passengers (Lt Julio César Alcaraz and Cpt Alberto Quevedo) were killed while three other occupants were injured.

Crash of a Pilatus PC-6/C-H2 Turbo Porter in Oklahoma City: 5 killed

Date & Time: Oct 5, 1977 at 0913 LT
Operator:
Registration:
N331V
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Oklahoma City - Oklahoma City
MSN:
2002
YOM:
1967
Crew on board:
1
Crew fatalities:
Pax on board:
4
Pax fatalities:
Other fatalities:
Total fatalities:
5
Captain / Total flying hours:
20450
Captain / Total hours on type:
330.00
Circumstances:
Just after liftoff, while in initial climb, the single engine airplane lost speed and height and crashed in flames. The aircraft was destroyed and all five occupants who were taking part to a demonstration flight were killed.
Probable cause:
Stall during initial climb due to improper operation of powerplant controls on part of the pilot. The following contributing factors were reported:
- Failed to maintain flying speed,
- Engine power lever found aft the prop reverse position with finger lift raised above beta detent.
Final Report:

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

Date & Time: Sep 28, 1977
Registration:
ST-AGY
Flight Type:
Survivors:
Yes
MSN:
600
YOM:
1966
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Aircraft flight hours:
9154
Circumstances:
Crashed on landing at Haya Airstrip for unknown reasons. There were no casualties.

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

Date & Time: Mar 23, 1977
Operator:
Registration:
A14-692
Flight Type:
Survivors:
Yes
MSN:
692
YOM:
1968
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Damaged beyond repair following a hard landing at Buckambool. There were no casualties.

Crash of a Pilatus PC-6/AU-23A Turbo Porter in Wat Phleng: 2 killed

Date & Time: Feb 1, 1977
Operator:
Registration:
JTh2-6/15
Flight Phase:
Flight Type:
Survivors:
No
MSN:
2057
YOM:
1972
Country:
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
2
Circumstances:
Crashed in unknown circumstances, killing both occupants.

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

Date & Time: Dec 31, 1976 at 1058 LT
Operator:
Registration:
HB-FFY
Flight Phase:
Survivors:
Yes
Schedule:
Sion - Sion
MSN:
679
YOM:
1968
Location:
Country:
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
8
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
470
Captain / Total hours on type:
39.00
Aircraft flight hours:
1613
Circumstances:
The single engine airplane was engaged in a local skydiving flight in Sion area. Flaps were selected at 28° for takeoff that was completed from runway 08. After rotation, while climbing to a height of about 100 feet, the tail stalled and the airplane crashed back onto the runway. On impact, the undercarriage were torn off and the airplane came to rest few dozen metres further. All nine occupants were evacuated, one passenger was slightly injured. The aircraft was written off.
Probable cause:
The accident was the consequence of a loss of speed due to abnormal use of flight controls and landing flaps. The following contributing factors were reported:
- Stall during initial climb after the pilot prematurely retracted the flaps from 28° to 14°,
- At the time of the accident, the total weight of the aircraft was 2,600 kilos, 185 kilos above the MTOW for existing flying conditions,
- There were eight passengers on board while the aircraft was certified for seven passengers maximum,
- The relative limited experience of the pilot.

Crash of a Pilatus PC-6/B1-H2 Turbo Porter in Cooma: 3 killed

Date & Time: May 20, 1976 at 1002 LT
Operator:
Registration:
VH-SMB
Survivors:
No
Schedule:
Talbingo – Khancoban – Cooma
MSN:
657
YOM:
1967
Country:
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
3
Captain / Total flying hours:
13138
Captain / Total hours on type:
3000.00
Circumstances:
The aircraft departed Polo Flat at 0750 hours on a planned flight to Khancoban, Talbingo and return. There was dense fog at Polo Flat at this time and the aircraft took off and climbed through fog until it was in clear conditions above. At Cooma Aerodrome, fog which had existed earlier dissipated about 0715 hours and the weather at that location then remained clear. When the aircraft returned to the Polo Flat area shortly after 0930 hours, fog was still present but it was commencing to break with patches of blue sky visible from time to time. Information regarding the weather conditions was communicated to the, pilot who had established radio contact with the base operations officer at Polo Flat. Shortly after the aircraft arrived in the area it was observed to make what appeared to be a landing approach into the north but when it had descended to a height of 10 to 15 feet the approach was discontinued and it climbed away. After flying for some time above the fog at a height of about 500 feet the aircraft was heard approaching from the south and the operations officer heard the pilot transmit the words 'hit the...'. Shortly afterwards the sound of an impact was heard. The port wing of the aircraft had struck the radio transmitter mast 32 feet from the top and the aircraft crashed to the ground in a steep nose-down attitude some 146 metres north of the mast. A fierce fire developed shortly after impact.
Crew:
John Howard, pilot.
Passengers:
Evelyn Anne Harvey,
Patricia Joy Harvey.
Probable cause:
The probable cause of the accident was that the aircraft was operated at an unsafe height in weather conditions in which the pilot was not able to maintain the visual reference necessary to ensure adequate clearance from obstructions.
Final Report:

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

Date & Time: Feb 20, 1976
Operator:
Registration:
XC-BIB
Flight Phase:
Flight Type:
MSN:
2069
YOM:
1968
Location:
Country:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Crashed in unknown circumstances. Operated by the Attorney General of the Republic, the aircraft has just been delivered few days prior to the accident.

Crash of a Pilatus PC-6/A-H2 Turbo Porter in Cluny

Date & Time: Dec 15, 1975
Registration:
F-BRPJ
Flight Phase:
Flight Type:
Survivors:
Yes
Site:
Schedule:
Nevers - Chambéry
MSN:
552
YOM:
1963
Country:
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The pilot, sole on board, departed Nevers on a ferry flight to Chambéry where the aircraft should follow a maintenance program by the Air Alpes facilities. En route, weather conditions deteriorated with limited visibility and low clouds. While cruising under VFR mode, he elected to divert to a local aerodrome when the single engine airplane struck the top of a snow covered mountain located near Cluny. The aircraft was destroyed and the pilot was slightly injured.
Probable cause:
The decision of the pilot to continue under VFR mode into adverse weather conditions (IMC conditions).