Crash of a Fairchild C-82A Packet in San Ramón: 6 killed

Date & Time: Dec 27, 1976
Type of aircraft:
Registration:
CP-983
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
San Ramón - Santa Cruz
MSN:
10147
YOM:
1945
Location:
Country:
Crew on board:
4
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
6
Circumstances:
During the takeoff roll on runway 16 at San Ramón Airport, the twin engine airplane veered off runway to the left and continued parallel to it. After rotation, the undercarriage struck successively an embankment and a tractor parked 50 metres further. Out of control, the airplane crashed in a field and was destroyed. All six occupants were killed.
Probable cause:
The accident was the consequence of the combination of the following factors:
- The total weight of the aircraft at the time of the accident was above the MTOW for the existing flying conditions,
- The crew encountered technical problems with the left engine prior to departure that was delayed several times. Thus, a malfunction of the left engine is suspected,
- Both engines were not running during final impact,
- The copilot and the flight engineer were not qualified on this type of aircraft.

Crash of a Douglas C-47-DL in La Paz

Date & Time: Nov 23, 1976
Operator:
Registration:
CP-755
Flight Type:
Survivors:
Yes
MSN:
4294
YOM:
1942
Country:
Crew on board:
3
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Following a wrong approach configuration, the airplane landed too far down the runway 27, about 450 meters past the runway threshold, at an excessive speed of 130 knots. Upon touchdown, the right tire burst. Out of control, the airplane veered off runway and came to rest. While all four occupants escaped uninjured, the aircraft was damaged beyond repair.

Crash of a Boeing 707-131F in Santa Cruz: 113 killed

Date & Time: Oct 13, 1976 at 1332 LT
Type of aircraft:
Operator:
Registration:
N730JP
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Santa Cruz - Miami
MSN:
17671
YOM:
1959
Country:
Crew on board:
3
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
113
Circumstances:
After a long takeoff roll, the airplane took off from runway 32 but encountered serious difficulties to gain sufficient height. After liftoff, the airplane continued at a height of about six metres then struck successively trees, houses and power cables before crashing in a huge explosion on a soccer field located about 560 metres past the runway end. The aircraft disintegrated on impact and several houses and buildings were destroyed. All three crew members were killed as well as 110 people on the ground. 32 others were injured, most of them seriously. Weather conditions at the time of the accident were considered as marginal but did not contribute to the mishap.
Probable cause:
It was reported that the Flight Data Recorder (FDR) was unserviceable at the time of the accident while the Cockpit Voice Recorder (CVR) contained only few information as the main cockpit mike was inoperative. Investigators confirmed that the accident was not caused by any engine failure, flight control malfunction or any structural failure. It is believed that the accident was the consequence of a poor flight preparation and wrong takeoff configuration on part of the crew who failed to select the correct takeoff speed. The following factors were considered as contributing:
- Crew fatigue,
- Wrong interpretation of the takeoff situation,
- Non interruption of the takeoff procedure.

Crash of an IAI Arava 201 near Itaguazurenda: 19 killed

Date & Time: Mar 2, 1976
Type of aircraft:
Operator:
Registration:
TAM-76
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Camiri - Itaguazurenda
MSN:
24
YOM:
1975
Country:
Crew on board:
4
Crew fatalities:
Pax on board:
18
Pax fatalities:
Other fatalities:
Total fatalities:
19
Circumstances:
The twin engine airplane departed Camiri on a short flight to Itaguazurenda, carrying 18 passengers and a crew of four. En route, the airplane crashed in unknown circumstances in a mountainous and wooded area located between localities separated by 50 km. The wreckage was found two days later. Three passengers were injured while 19 other occupants were killed.

Crash of a Cessna 207 Skywagon in Santa Rosa del Sara

Date & Time: Jan 31, 1976
Operator:
Registration:
CP-1022
Flight Phase:
Flight Type:
Survivors:
Yes
Country:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
After takeoff, while climbing, the single engine airplane collided with two vulture, stalled and crashed in a swampy area. There were no casualties.
Probable cause:
Collision with birds during initial climb.

Crash of a Douglas C-47-DL in San Borja: 7 killed

Date & Time: Jan 18, 1976 at 1544 LT
Registration:
CP-573
Flight Type:
Survivors:
Yes
MSN:
4682
YOM:
1942
Country:
Crew on board:
3
Crew fatalities:
Pax on board:
7
Pax fatalities:
Other fatalities:
Total fatalities:
7
Circumstances:
Few minutes after takeoff from San Borja-Capitán Germán Quiroga Guardia Airport, the right engine failed. The crew declared an emergency landing and was cleared to return and to land on runway 18. Following an unstable approach, the airplane failed to land, passed over the runway and eventually crashed in a wooded area located past the runway end. Three passengers were injured while all seven other occupants were killed.
Probable cause:
Failure of the right engine after takeoff for undetermined reasons.

Crash of a Convair CV-440-12 Metropolitan in Tomonoco: 67 killed

Date & Time: Oct 27, 1975 at 0645 LT
Operator:
Registration:
TAM-44
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Tomonoco - La Paz
MSN:
328
YOM:
1956
Location:
Country:
Crew on board:
4
Crew fatalities:
Pax on board:
63
Pax fatalities:
Other fatalities:
Total fatalities:
67
Circumstances:
After a night takeoff from Tomonoco Airport, the airplane encountered difficulties to gain sufficient height and struck the slope of Mt Colorado located few km from the airport. The aircraft disintegrated on impact and all 67 occupants were killed, among them several Army officers flying back to La Paz with family members.
Probable cause:
It was determined that the aircraft was overloaded at the time of the accident. The departure procedure for Tomonoco Airport is requesting a high climb gradient due to close mountains. The present CV-440 has been modified by the army to carry more passengers than the original certification. As it was heavily loaded, the airplane was unable to adopt a sufficient positive rate of climb after takeoff until it struck the mountain.

Crash of a Curtiss C-46F-1-CU Commando in Trinidad

Date & Time: Aug 30, 1975
Type of aircraft:
Operator:
Registration:
CP-714
Flight Type:
Survivors:
Yes
MSN:
22476
YOM:
1945
Country:
Crew on board:
3
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
After takeoff from Trinidad-Jorge Heinrich Arauz Airport, while climbing, the crew reported the failure of the right engine and was cleared to return. Unable to maintain a safe altitude, the captain decided to attempt an emergency landing when the airplane crash landed in an open field located near the airport. The aircraft was damaged beyond repair while all three crew members escaped with minor injuries.
Probable cause:
Failure of the right engine after takeoff for unknown reasons.

Crash of a Curtiss C-46A-40-CU Commando in Riberalta

Date & Time: Jun 9, 1975
Type of aircraft:
Operator:
Registration:
CP-855
Flight Type:
Survivors:
Yes
MSN:
26948
YOM:
1944
Location:
Country:
Crew on board:
3
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
On touchdown at Riberalta Airport, the right main gear collapsed. The airplane sank on its belly and slid for several meters before coming to rest. All three crew members escaped uninjured while the aircraft was damaged beyond repair.
Probable cause:
Failure of the right main gear upon landing for undetermined reasons.

Crash of a Curtiss C-46F-1-CU Commando in San Borja

Date & Time: Jun 6, 1975
Type of aircraft:
Registration:
CP-941
Flight Phase:
Flight Type:
Survivors:
Yes
MSN:
22446
YOM:
1945
Country:
Crew on board:
3
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
At liftoff, the twin engine airplane stalled and crashed for unknown reasons. All four occupants were slightly injured and the aircraft was damaged beyond repair.