Crash of a Rockwell Aero Commander 680 in Barrow: 7 killed

Date & Time: Nov 21, 1968 at 0954 LT
Registration:
N3810C
Flight Phase:
Survivors:
Yes
MSN:
680-750-40
YOM:
1959
Location:
Crew on board:
1
Crew fatalities:
Pax on board:
7
Pax fatalities:
Other fatalities:
Total fatalities:
7
Captain / Total flying hours:
13262
Captain / Total hours on type:
41.00
Circumstances:
Shortly after takeoff from Barrow Airport, while in initial climb, the right engine failed. The pilot lost control of the airplane that stalled and crashed in flames. A passenger was seriously injured while seven other occupants were killed.
Probable cause:
The accident was probably caused by the combination of the following factors:
- Failure of the right engine for undetermined reason,
- Improper operation of flight controls,
- Improper operation of powerplant,
- Improper emergency procedures,
- Inadequate preflight preparation,
- Improperly loaded aircraft-weight and CofG,
- Aircraft allowed to enter condition of asymmetrical thrust,
- Aircraft overloaded by 475 lbs.
Final Report:

Crash of a Curtiss C-46A-15-CU Commando in San Borja

Date & Time: Nov 11, 1968
Type of aircraft:
Registration:
CP-791
Survivors:
Yes
MSN:
26515
YOM:
1943
Location:
Country:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Crashed in unknown circumstances. No casualties.

Crash of a Beechcraft D18S near Tapijulapa: 6 killed

Date & Time: Nov 11, 1968
Type of aircraft:
Registration:
XA-POJ
Flight Phase:
Survivors:
No
Site:
Schedule:
Tapachula – Tuxtla Gutiérrez – Villahermosa
MSN:
A-134
YOM:
1946
Country:
Crew on board:
2
Crew fatalities:
Pax on board:
4
Pax fatalities:
Other fatalities:
Total fatalities:
6
Circumstances:
On the leg from Tuxtla Gutiérrez to Villahermosa, the weather conditions deteriorated and the crew elected to divert to an alternate terrain for a safe landing when the airplane struck the slope of a mountain shrouded in clouds and located near Tapijulapa. All six occupants were killed.

Crash of a Douglas C-54A-15-DC Skymaster in Rio de Janeiro

Date & Time: Nov 6, 1968
Type of aircraft:
Operator:
Registration:
PP-LEW
Survivors:
Yes
MSN:
10348
YOM:
1944
Country:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Belly landed at Rio de Janeiro-Santos Dumont Airport, slid for few dozen meters and came to rest. There were no casualties but the aircraft was written off.
Probable cause:
The crew forgot to lower the landing gear on approach.

Crash of a Fairchild-Hiller FH-227C in Lebanon: 32 killed

Date & Time: Oct 25, 1968 at 1717 LT
Type of aircraft:
Operator:
Registration:
N380NE
Survivors:
Yes
Site:
Schedule:
Boston – Lebanon – Montpelier
MSN:
517
YOM:
1966
Flight number:
NE946
Crew on board:
3
Crew fatalities:
Pax on board:
39
Pax fatalities:
Other fatalities:
Total fatalities:
32
Captain / Total flying hours:
14700
Captain / Total hours on type:
1181.00
Copilot / Total flying hours:
2499
Copilot / Total hours on type:
281
Aircraft flight hours:
3828
Circumstances:
Northeast Airlines Flight 946 departed Boston 17:42 for a flight to Lebanon, NH and Montpelier, VT. The Fairchild climbed to a cruising altitude of 8000 feet. At 18:08 the crew were cleared for an approach to the Lebanon Airport to cruise at 5,000 feet and report leaving 6,000 feet. At 18:10:45, the controller advised the crew that radar service had been terminated and the flight was cleared to contact the Lebanon Flight Service Station (FSS). One minute later the FSS told the crew that the weather was an estimated ceiling of 2,000 feet overcast; visibility was 10 miles; there were breaks in the overcast; the altimeter setting was 29:55; and the wind was calm. The flight did not perform the published instrument approach procedure but executed an abbreviated approach by making a right turn from their northwesterly heading and then a left turn back to intercept the inbound radial to the VOR station. The inbound radial was intercepted at approximately 8 to 10 miles northeast of the VOR station where it passed through an altitude of about 4500 feet. The crew began the descent but did not level off at 2,800 feet m.s.l., the minimum altitude inbound to the VOR. During the approach to runway 25 the airplane contacted trees on the cloud-shrouded side of a steep, rocky, heavily wooded mountain 57 feet below the summit at 2,237 feet m.s.l. The aircraft cut a swath trough the trees broke up and caught fire. Two crew members and 30 passengers were killed while 10 others were injured.
Probable cause:
The premature initiation of a descent towards the Minimum Descent Altitude, based on navigational instrument indications of an impending station passage in an area of course roughness. The crew was not able to determine accurately its position at this time because they had performed a non standard instrument approach and there were no supplement navigational aids available for their use.

Crash of a Douglas C-47A-25-DK in Feijó: 19 killed

Date & Time: Oct 20, 1968
Operator:
Registration:
PP-SAD
Flight Phase:
Survivors:
No
MSN:
13764
YOM:
1944
Location:
Country:
Crew on board:
3
Crew fatalities:
Pax on board:
16
Pax fatalities:
Other fatalities:
Total fatalities:
19
Circumstances:
Shortly after takeoff from Feijó Airport, while climbing, the pilot informed ground about an engine failure and was cleared to return for an emergency landing. While completing a last turn to join the approach path, control was lost and the airplane crashed in a field located few km from the airport. All 19 occupants were killed.
Probable cause:
Engine failure during initial climb for undetermined reason.

Crash of an Ilyushin II-18D in Krasnoyarsk

Date & Time: Oct 20, 1968
Type of aircraft:
Operator:
Registration:
CCCP-75436
Survivors:
Yes
Schedule:
Novosibirsk – Yakutsk – Magadan
MSN:
186 0095 05
YOM:
1966
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
On the leg from Novosibirsk to Yakutsk, the hydraulic pressure on engine number 2 dropped. The captain decided to divert to Krasnoyarsk Airport for an emergency landing. The approach was completed in snow falls and during the last segment, the four engine airplane was too low and struck the ground 200 meters short of runway threshold then crashed and burned. There were no casualties but the aircraft was destroyed.
Probable cause:
The cause of the loss of hydraulic pressure on engine number 2 remains unknown. However, the decision of the crew to divert to Krasnoyarsk Airport was wrong as the weather was considered as marginal. It would be preferable to divert to Kemerovo or Bratsk Airport where the weather conditions were considered as good.

Crash of a Canadian Vickers PBV-1A Canso A off Canutama: 4 killed

Date & Time: Oct 17, 1968 at 1405 LT
Operator:
Registration:
PP-PCW
Survivors:
Yes
MSN:
CV-429
YOM:
1944
Country:
Crew on board:
5
Crew fatalities:
Pax on board:
9
Pax fatalities:
Other fatalities:
Total fatalities:
4
Circumstances:
Upon landing on the Rio Purus off Canutama, the seaplane was apparently in a wrong attitude, nosed down and came to rest partially submerged. Four passengers were killed while 10 other occupants were rescued.

Crash of a Rockwell Aero Commander 680 in Tin City

Date & Time: Oct 12, 1968 at 1110 LT
Operator:
Registration:
N401M
Flight Phase:
Survivors:
Yes
MSN:
680-338-31
YOM:
1956
Location:
Crew on board:
1
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
5219
Captain / Total hours on type:
1897.00
Circumstances:
After takeoff from Tin City, the right engine malfunctioned. The pilot lost control of the airplane that crashed by the runway. Both occupants were seriously injured and the airplane was destroyed.
Probable cause:
The accident was probably caused by the combination of the following factors:
- Engine failure or malfunction caused by carbon deposit, ignition system, spark plugs,
- Stall during initial climb,
- The pilot attempted operation with known deficiencies in equipment,
- The pilot failed to abort the takeoff procedure,
- The pilot failed to obtain/maintain flying speed,
- Witnesses stated that the right engine backfired,
- The pilot continued the takeoff procedure and climbed in a steep attitude,
- Two previous takeoff were aborted.
Final Report:

Crash of an Avia 14-32A in Prague: 11 killed

Date & Time: Oct 11, 1968 at 1620 LT
Type of aircraft:
Operator:
Registration:
OK-MCJ
Flight Phase:
Survivors:
Yes
Schedule:
Prague – Piešťany – Košice
MSN:
778 051 20
YOM:
1958
Region:
Crew on board:
4
Crew fatalities:
Pax on board:
36
Pax fatalities:
Other fatalities:
Total fatalities:
11
Circumstances:
After takeoff from Prague-Ruzyne Airport, while climbing, one of the engine failed. The airplane went out of control and crashed in an open field located 7 km southwest from the airport. Three crew members and eight passengers were killed while 29 other occupants were injured. The aircraft was en route from Prague to Košice with an intermediate stop in Piešťany.
Probable cause:
Engine failure for undetermined reason. It was also reported that the crew coordination and reaction to an emergency situation was inappropriate, which was considered as a contributing factor.