Crash of a Sud-Aviation SE-210 Caravelle III off Penghu Islands: 25 killed

Date & Time: Nov 21, 1971 at 2150 LT
Operator:
Registration:
B-1852
Flight Phase:
Survivors:
No
Schedule:
Taipei - Hong Kong
MSN:
122
YOM:
1962
Country:
Region:
Crew on board:
8
Crew fatalities:
Pax on board:
17
Pax fatalities:
Other fatalities:
Total fatalities:
25
Circumstances:
While cruising by night over the Taiwan Strait en route from Taipei to Hong Kong, the airplane disappeared from the radar screen without any distress call on part of the flying crew. Debris were found in the next early morning, floating on water off the Penghu Islands (Pescadores Islands), Taiwan. None of the 25 occupants survived the crash, among them the Ambassador of Brazil in China. Eye witnesses reported that the airplane disintegrated in the air.
Probable cause:
It was determined that the accident was the consequence of an in-flight disintegration of the airplane after a bomb exploded on board. The author and the reason of this act of terrorism remains unknown.

Crash of a Noorduyn Norseman IV on Grønnøya Island

Date & Time: Nov 20, 1971
Type of aircraft:
Operator:
Registration:
LN-BIU
Flight Phase:
Survivors:
Yes
MSN:
59
YOM:
1941
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Crashed in unknown circumstances on Grønnøya Island. There were no casualties while the aircraft was damaged beyond repair.

Crash of an Antonov AN-24RV in Bucharest

Date & Time: Nov 15, 1971
Type of aircraft:
Operator:
Registration:
YR-AMA
Survivors:
Yes
MSN:
17306904
YOM:
1971
Country:
Region:
Crew on board:
4
Crew fatalities:
Pax on board:
18
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
On final approach to Bucharest-Otopeni Airport in bad weather conditions, the airplane crashed few dozen yards short of runway threshold. All 22 occupants were evacuated while the aircraft was written off.

Crash of an Antonov AN-24B in Kerch: 6 killed

Date & Time: Nov 13, 1971 at 0819 LT
Type of aircraft:
Operator:
Registration:
CCCP-46378
Survivors:
Yes
Schedule:
Simferopol - Kerch
MSN:
07306101
YOM:
1970
Flight number:
N-639
Country:
Region:
Crew on board:
4
Crew fatalities:
Pax on board:
7
Pax fatalities:
Other fatalities:
Total fatalities:
6
Aircraft flight hours:
3020
Aircraft flight cycles:
2388
Circumstances:
The airplane was completing a flight from Simferopol to Kerch, carrying six members of the Ministry of the Interior. On approach, the crew encountered poor weather conditions with fog, clouds down to 100 meters above the ground and a visibility limited to 500 meters. On final, at a speed of 220 km/h, the pilot-in-command decided to reduced his altitude to establish a visual contact with the ground when the airplane struck a concrete block of a power line. Flying at a height of 17 meters below the runway altitude, the airplane struck a house and crashed in flames some 2,610 meters short of runway. All four crew members and two passengers were killed while five other occupants were killed.
Probable cause:
The crew continued the approach below the glide without visual contact with the runway and ground. The accident was caused by the combination of the following factors:
- Overestimation of the vertical speed,
- Poor altimeter monitoring,
- Possible wrong altimeter setting,
- Absence of a radar at the airport allowing ATC to monitor the aircraft's approach path,
- Low visibility due to fog,
- Lack of information regarding weather conditions at destination.

Crash of an Antonov AN-24B in Vinnitsa: 48 killed

Date & Time: Nov 12, 1971 at 1125 LT
Type of aircraft:
Operator:
Registration:
CCCP-46809
Survivors:
No
Schedule:
Kiev - Vinnitsa
MSN:
67302306
YOM:
1966
Flight number:
N-63
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
43
Pax fatalities:
Other fatalities:
Total fatalities:
48
Aircraft flight hours:
11329
Aircraft flight cycles:
10658
Circumstances:
On approach to Vinnitsa Airport, the crew encountered poor weather conditions with fog, low clouds and freezing rain. Due to poor visibility, the captain decided to abandon the approach and made a go-around. Few minutes later, during a second attempt to land in similar conditions, the captain decided to make a second go-around and requested full power. At this time, the airplane banked left to an angle of 20-40° then stalled and crashed in flames 850 meters short of runway. The aircraft was totally destroyed and all 48 occupants were killed.
Probable cause:
The loss of control on short final was caused by an aerodynamic stalled for a reason which could not be determined with certainty. However, it was reported that a delay of 3 to 5 second elapsed from the decision to make a go-around and the selection of the speed levers in a forward position which could contribute to the stall.

Crash of a Vickers 828 Viscount off Padang: 69 killed

Date & Time: Nov 10, 1971
Type of aircraft:
Operator:
Registration:
PK-MVS
Flight Phase:
Survivors:
No
Schedule:
Jakarta - Padang - Medan - Kuala Lumpur
MSN:
448
YOM:
1962
Country:
Region:
Crew on board:
7
Crew fatalities:
Pax on board:
62
Pax fatalities:
Other fatalities:
Total fatalities:
69
Circumstances:
The crew just started the descent to Padang-Tabing Airport when the airport went out of control and crashed into the Mentawai Strait. Dew debris were found three days later about 120 km south of Padang. All 69 occupants were killed.
Probable cause:
The cause of the accident could not determined.

Crash of a NAMC YS-11-212 in Aragarças

Date & Time: Nov 7, 1971
Type of aircraft:
Operator:
Registration:
PP-SML
Survivors:
Yes
MSN:
2076
YOM:
1968
Country:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
After landing at Aragarças Airport, the pilot-in-command started the braking procedure when he saw the presence of another airplane on the runway. He veered off runway to the right, causing the airplane to stop in a grassy area. All occupants evacuated safely and there were no injuries. The following night, two men were dispatched to guard the aircraft. A candle was lit inside the plane, causing a fire. The cabin burned out, killing both guards.

Crash of a Beechcraft B99 Airliner in Allentown: 4 killed

Date & Time: Oct 24, 1971 at 2307 LT
Type of aircraft:
Operator:
Registration:
N986MA
Survivors:
Yes
Site:
Schedule:
Wilkes Barre - Allentown
MSN:
U-044
YOM:
1968
Flight number:
VM098
Crew on board:
2
Crew fatalities:
Pax on board:
6
Pax fatalities:
Other fatalities:
Total fatalities:
4
Captain / Total flying hours:
4600
Captain / Total hours on type:
800.00
Circumstances:
Monmouth Airlines Flight 98 departed Wilkes-Barre at 2253LT for a short IFR flight to Allentown. Allentown Approach Control cleared the flight for a VOR approach and instructed the pilot to report when it was 12 miles North of the Allentown VOR. At 2307LT, upon receiving the flight's position estimate, Allentown Approach Control cleared Monmouth 98 for a VOR approach to a landing on runway 06. Monmouth 98 was requested to report when inbound over the Allentown VOR. The airplane then collided with the ridge of Blue Mountain at an elevation of 1540 ft (470 m). The wreckage was found 11,3 miles north of Allentown-Bethlehem Easton Airport. Both pilots and two passengers were killed while four other passengers were injured. The aircraft was destroyed.
Probable cause:
The pilot's nonadherence to approved approach procedures for executing a non precision instrument approach in instrument flight conditions. The Board further finds that there is a high degree of probability that the extensive on-duty time and actual instrument flight time prior to this accident resulted in the fatigue of both pilots and affected their judgment and decisions during the approach.
Final Report:

Crash of an ATECO Westwind II in Peoria: 16 killed

Date & Time: Oct 21, 1971 at 1220 LT
Type of aircraft:
Operator:
Registration:
N51CS
Survivors:
No
Schedule:
Chicago - Peoria
MSN:
BA-211
YOM:
1956
Flight number:
SC804
Location:
Crew on board:
2
Crew fatalities:
Pax on board:
14
Pax fatalities:
Other fatalities:
Total fatalities:
16
Captain / Total flying hours:
16119
Captain / Total hours on type:
133.00
Copilot / Total flying hours:
4690
Copilot / Total hours on type:
43
Aircraft flight hours:
7751
Circumstances:
Chicago & Southern Airlines, Inc., Flight 804, crashed at approximately 1220 central daylight time while it was executing an instrument approach to the Greater Peoria Airport, Peoria, Illinois. The 16 persons on board received fatal injuries. The aircraft made initial contact with powerlines which cross the VOR Runway 12 final of Runway 12 of the Greater Peoria Airport approach course, approximately 2 miles west. Near the point of contact there are two towers, each of which supports four sets of cables. The easterly tower is 681 feet mean sea level. The elevation of the ground at the base of the most contact was made with the lower cables which were 65 feet above ground level. The aircraft thereafter contacted the ground, bounced and slid into the base of a large hedgewood tree 152 feet from the point of initial wire contact, along a wreckage path of 050° magnetic. The major portion of the aircraft structure remained at the base of the tree. An intense fire ensued which almost completely destroyed the cockpit and cabin area of the fuselage. All 16 occupants were killed.
Probable cause:
The National Transportation Safety Board determines that the probable cause of this accident was that the pilot knowingly descended below the Minimum Descent Altitude in an attempt to complete the approach by means of visual reference to ground objects. Because of minimal visibility and low clouds in the approach zone, the aircraft was operated at an altitude too low to provide clearance over the powerlines.
Final Report:

Crash of an Antonov AN-2 in Dniepropetrovsk

Date & Time: Oct 17, 1971
Type of aircraft:
Operator:
Registration:
CCCP-70908
Flight Phase:
Survivors:
Yes
MSN:
1 93 473 03
YOM:
1958
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Control was lost in flight and the aircraft crashed in a field. There were no casualties but the aircraft was damaged beyond repair.
Probable cause:
Loss of control caused by the failure of a slat control cable in flight.