Crash of a Cessna 207 Skywagon in Denali National Park: 5 killed

Date & Time: Jun 23, 1981
Operator:
Registration:
N6331H
Flight Phase:
Survivors:
No
Site:
Schedule:
Anchorage - Anchorage
MSN:
207-0486
YOM:
1979
Crew on board:
1
Crew fatalities:
Pax on board:
4
Pax fatalities:
Other fatalities:
Total fatalities:
5
Captain / Total flying hours:
3500
Circumstances:
The single engine airplane departed Anchorage on an on-demand charter flight over the Denali National Park, carrying one pilot and four tourists. While flying between 8,000 and 13,000 feet near circular end of box canyon, the pilot flew into blind canyon when the airplane struck peaks obscured by clouds and crashed. The wreckage was found few hours later and all five occupants were killed.
Probable cause:
Controlled collision with ground due to improper in-flight decisions on part of the pilot. The following contributing factors were reported:
- The pilot misjudged distance, speed, altitude or clearance,
- Flew into blind canyon,
- High density altitude,
- Peaks obscured by clouds.
Final Report:

Crash of a Beechcraft G18S in Anvik: 1 killed

Date & Time: Jun 4, 1981 at 1745 LT
Type of aircraft:
Operator:
Registration:
N146PA
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Anvik - Anchorage
MSN:
BA-480
YOM:
1959
Location:
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Captain / Total flying hours:
12700
Captain / Total hours on type:
327.00
Circumstances:
After takeoff from Anvik Airport, the twin engine airplane stalled and crashed, bursting into flames. The pilot, sole on board, was killed. He was en route to Anchorage on a company cargo flight.
Probable cause:
Stall during initial climb because the pilot failed to abort takeoff. The following contributing factors were reported:
- Inadequate preflight preparation,
- Improperly loaded aircraft,
- 188 lbs over max gross weight.
Final Report:

Crash of a Convair C-131E Samaritan in Dillingham

Date & Time: Jun 4, 1981 at 1617 LT
Type of aircraft:
Registration:
N121CA
Flight Type:
Survivors:
Yes
Schedule:
Dillingham - Anchorage
MSN:
342
YOM:
1956
Crew on board:
2
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
9500
Captain / Total hours on type:
630.00
Circumstances:
After takeoff from Dillingham Airport, while on a company ferry flight to Anchorage, the right engine surged at meto power and the crew was forced to shut it down. The decision to return was taken and the crew followed a circuit pattern then started the descent. On final approach, the airplane descended into trees and crashed in a wooded area located few hundred yards short of runway 01. The aircraft was destroyed while all three occupants escaped with minor injuries.
Probable cause:
Engine malfunction during initial climb after exhaust stacks failed. The following contributing factors were reported:
- Material failure,
- Leak,
- Power indicators failure,
- Governors malfunction,
- Overheated, erratic,
- The pilot-in-command failed to follow approved procedures,
- Right engine fire warning light during takeoff,
- Engine surged at meto power,
- Exhaust stack broken,
- Bmep conduit overheated.
Final Report:

Crash of a Pilatus PC-6/350 Porter near Sparrevohn

Date & Time: Oct 1, 1979 at 0900 LT
Operator:
Registration:
N4912
Flight Phase:
Survivors:
Yes
Site:
Schedule:
Red Devil - Anchorage
MSN:
544
YOM:
1962
Crew on board:
1
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
4300
Captain / Total hours on type:
140.00
Circumstances:
On a flight from Red Devil to Anchorage, while flying over mountainous terrain, the pilot encountered severe downdrafts when the airplane crashed in flames on a hilly terrain near Sparrevohn. Both occupants were injured and the aircraft was destroyed.
Probable cause:
Controlled collision with ground during normal due to improper in-flight decisions. The following contributing factors were reported:
- Downdrafts,
- Wind gusting 40 knots.
Final Report:

Crash of a Cessna 207 Skywagon in Rainy Pass: 1 killed

Date & Time: Sep 24, 1979
Operator:
Registration:
N6405H
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Anchorage - Galena
MSN:
207-0512
YOM:
1979
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Captain / Total flying hours:
1500
Captain / Total hours on type:
150.00
Circumstances:
En route from Anchorage to Galena, the pilot encountered poor weather conditions with low ceiling. Lost and disoriented, he flew into a blind canyon when he saw high obstructions. While initiating an evasive maneuver to avoid collision, he made a steep turn to the left when the aircraft struck the ground and crashed in flames in a mountainous terrain located about 125 miles northwest from the city of Anchorage. As the airplane failed to arrive at destination, SAR operations were initiated but eventually abandoned few days later as no trace of the aircraft nor the pilot was found. On September 2, 1980, the burnt wreckage was found near Rainy Pass.
Probable cause:
Controlled flight into terrain after the pilot became lost and disoriented. The following contributing factors were reported:
- The pilot continued VFR flight into adverse weather conditions,
- The pilot misjudged distance, speed, altitude or clearance,
- Low ceiling,
- High obstructions,
- The pilot flew into blind canyon,
- Evasive maneuver to avoid collision,
- In-flight steep left turn,
- Recovery date September 2, 1980.
Final Report:

Crash of a Cessna 402B near Anchorage: 7 killed

Date & Time: Jul 12, 1979 at 0932 LT
Type of aircraft:
Registration:
N402TH
Flight Phase:
Survivors:
No
Schedule:
Anchorage - Kenai
MSN:
402B-1034
YOM:
1975
Crew on board:
1
Crew fatalities:
Pax on board:
6
Pax fatalities:
Other fatalities:
Total fatalities:
7
Captain / Total flying hours:
7726
Captain / Total hours on type:
1715.00
Circumstances:
After departure from Anchorage Airport, while climbing, the pilot encountered technical problems with his instruments. In zero visibility due to clouds and fog, the aircraft descended until it struck the ground and crashed few miles from Anchorage. The aircraft was destroyed upon impact and all seven occupants were killed.
Probable cause:
Controlled collision with ground following the failure of a fluxgate compass. The following contributing factors were reported:
- Flight and navigation instruments: fluxgate compass,
- Material failure,
- The pilot failed to use or incorrectly used miscellaneous equipment,
- Chafed,
- Airways facilities personnel,
- Failure of ATC to properly identify the aircraft on radar,
- Low ceiling,
- Rain,
- Fog,
- Zero visibility,
- Aircraft observed with IFR arrival transponder code after departure,
- Flux detector wires chafed,
- Ground control cannot communicate directly with departure control.
Final Report:

Crash of a De Havilland DHC-2 Beaver near Whittier: 6 killed

Date & Time: Sep 13, 1978 at 1130 LT
Type of aircraft:
Operator:
Registration:
N37741
Flight Phase:
Survivors:
No
Schedule:
Anchorage - Whittier
MSN:
269
YOM:
1952
Location:
Crew on board:
1
Crew fatalities:
Pax on board:
5
Pax fatalities:
Other fatalities:
Total fatalities:
6
Captain / Total flying hours:
3125
Captain / Total hours on type:
106.00
Circumstances:
En route from Anchorage to Whittier, weather conditions worsened while the pilot was flying into a canyon. The single engine airplane lost height then crashed in a river bed. All six occupants were killed.
Probable cause:
Loss of control after the pilot continued VFR flight in adverse weather conditions. The following contributing factors were reported:
- Improper in-flight decisions,
- Sudden windshift,
- Downdrafts, updrafts,
- Flew into blind canyon,
- Aircraft came to rest in water,
- Float equipped,
- No antenna for ELT.
Final Report:

Crash of a Cessna 411 off Yakutat: 7 killed

Date & Time: Aug 27, 1977
Type of aircraft:
Registration:
N4930T
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Juneau - Anchorage
MSN:
411-0130
YOM:
1965
Location:
Crew on board:
2
Crew fatalities:
Pax on board:
5
Pax fatalities:
Other fatalities:
Total fatalities:
7
Captain / Total flying hours:
2150
Captain / Total hours on type:
100.00
Circumstances:
En route from Juneau to Anchorage, while cruising in marginal weather conditions, the pilot reported engine problems when contact was lost. The airplane entered a spin and crashed into the ocean off Yakutat. Few debris and two dead bodies were found. The aircraft sank and was lost.
Probable cause:
Due to lack of evidences, the exact cause of the accident could not be determined. The following findings were reported:
- Powerplant failure for undetermined reasons,
- Icing conditions including sleet and freezing rain,
- Partial loss of power on one engine,
- Complete failure of one engine,
- Weather slightly worse than forecast,
- Ceiling 1,200 feet,
- Pilot reported securing engine n°2,
- Passengers recovered from bay,
- Aircraft damage and injury index presumed.
Final Report:

Crash of a Beechcraft E90 King Air in Tok: 2 killed

Date & Time: Nov 29, 1976 at 1855 LT
Type of aircraft:
Operator:
Registration:
N6843S
Flight Phase:
Survivors:
No
Schedule:
Tok - Anchorage
MSN:
LW-137
YOM:
1975
Location:
Crew on board:
1
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
2
Captain / Total flying hours:
6291
Captain / Total hours on type:
311.00
Circumstances:
Shortly after takeoff from Tok Airport in poor weather conditions, the pilot lost control of the airplane that descended to the ground and crashed near the airport. The aircraft was destroyed and both occupants were killed.
Probable cause:
Uncontrolled descent during initial climb after the pilot suffered a spatial disorientation. The following contributing factors were reported:
- Low ceiling,
- Turbulences associated with clouds and thunderstorms,
- Rain,
- Fog,
- Ceiling at 400 feet,
- Wind gusting to 40 knots.
Final Report:

Crash of a Cessna 402 near Summit Lake: 2 killed

Date & Time: Jun 11, 1976 at 0750 LT
Type of aircraft:
Operator:
Registration:
N4049Q
Flight Phase:
Survivors:
No
Schedule:
Anchorage - Seward
MSN:
402-0149
YOM:
1967
Crew on board:
1
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
2
Captain / Total flying hours:
4000
Captain / Total hours on type:
72.00
Circumstances:
While cruising parallel to the Seward - Anchorage highway at an altitude of 1,000 feet, the twin engine airplane collided with a Kenai Civil Air Patrol Beechcraft A-45 Mentor registered N1406Z. Engaged in a SAR mission after a Cessna 170 was missing, the Mentor was carrying two pilots. Following the collision, both aircraft dove into the ground and crashed. All four occupants were killed.
Probable cause:
Collision with other aircraft in normal cruise. The following contributing factors were reported:
- Failed to see and avoid other aircraft,
- Pilot of other aircraft,
- Not under radar contact,
- No control.
Final Report: