Crash of a Boeing KC-135A-BN Stratotanker into the Atlantic Ocean: 5 killed

Date & Time: Aug 28, 1963 at 1230 LT
Type of aircraft:
Operator:
Registration:
61-0322
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Homestead - Homestead
MSN:
18229
YOM:
1962
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
5
Circumstances:
Following an uneventful refuelling mission of a Boeing B-47, the Stratotanker was returning to its base at Homestead, south Florida, some 1,125 km from its position. It was flying with a second USAF Boeing KC-135A-BN Stratotanker registered 61-0319 and carrying a crew of six. The first KC-135 was flying at an altitude of 36,000 feet while the second was following at an altitude of 35,500 feet. En route, both airplanes went into a low pressure area and apparently collided. All contacts were lost at 1230LT. SAR operations were conducted and some debris were found a day later some 480 km west of Bermuda. All 11 crew members were killed.
Probable cause:
Due to the lack of evidences, the exact cause of the accident could not be determined with certainty. However, it is believed that both Stratotanker collided in flight, maybe following a loss of speed and altitude from the first aircraft after it encountered downdraft or atmospheric turbulences.

Crash of a Boeing KC-135A-BN Stratotanker into the Atlantic Ocean: 6 killed

Date & Time: Aug 28, 1963 at 1230 LT
Type of aircraft:
Operator:
Registration:
61-0319
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Homestead - Homestead
MSN:
18226
YOM:
1962
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
6
Circumstances:
Following an uneventful refuelling mission of a Boeing B-47, the Stratotanker was returning to its base at Homestead, south Florida, some 1,125 km from its position. It was flying with a second USAF Boeing KC-135A-BN Stratotanker registered 61-0322 and carrying a crew of five. The first KC-135 was flying at an altitude of 36,000 feet while the second was following at an altitude of 35,500 feet. En route, both airplanes went into a low pressure area and apparently collided. All contacts were lost at 1230LT. SAR operations were conducted and some debris were found a day later some 480 km west of Bermuda. All 11 crew members were killed.
Probable cause:
Due to the lack of evidences, the exact cause of the accident could not be determined with certainty. However, it is believed that both Stratotanker collided in flight, maybe following a loss of speed and altitude from the first aircraft after it encountered downdraft or atmospheric turbulences.

Crash of a Douglas A-26B-66-DL Invader near Quảng Ngãi: 3 killed

Date & Time: Aug 16, 1963
Type of aircraft:
Operator:
Registration:
44-34681
Flight Phase:
Flight Type:
Survivors:
No
MSN:
27960
YOM:
1944
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
3
Circumstances:
En route, the right wing failed. The airplane entered a dive and eventually crashed in a huge explosion, killing all three crew members.
Probable cause:
Failure of the right wing in flight due to a structural failure caused by a fatigue of its components consecutive to an abusive usage in situations the aircraft was not devoted.

Crash of a Boeing KC-135A-BN Stratotanker at Westover AFB: 1 killed

Date & Time: Jun 21, 1963
Type of aircraft:
Operator:
Registration:
57-1498
Flight Type:
Survivors:
Yes
Schedule:
Westover - Westover
MSN:
17569
YOM:
1958
Crew on board:
4
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Circumstances:
The crew was completing a local training flight at Westover AFB and encountered poor visibility due to heavy rain falls. On final, the airplane was too low, struck trees and crashed on a hilly and wooded terrain (777 feet high) located 5 miles short of runway and one mile to the left of the approach path. Three crew members were injured and the fourth occupant was killed. For unknown reason, the aircraft passed below the decision height and was not properly aligned.

Crash of a Rockwell T-39A-1-NA Sabreliner at Andrews AFB

Date & Time: May 7, 1963
Type of aircraft:
Operator:
Registration:
61-0644
Flight Type:
Survivors:
Yes
MSN:
265-47
YOM:
1962
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Suffered an unclear accident upon landing at Andrews AFB. There were no injuries but the aircraft was written off.

Crash of a Douglas C-47 in the Sandia Mountains: 9 killed

Date & Time: Apr 26, 1963
Operator:
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Andrews - March
Crew on board:
4
Crew fatalities:
Pax on board:
5
Pax fatalities:
Other fatalities:
Total fatalities:
9
Circumstances:
The crew was performing a secret mission from Andrews AFB to March AFB. While overflying New Mexico, he encountered severe icing conditions. A wing fell off and the aircraft crashed in the Sandia Mountain Range located northeast of Albuquerque. All nine occupants were killed and the aircraft was destroyed. All USAF C-47's were grounded following this accident, until the struts had been replaced.
Probable cause:
Investigations revealed that a wing's guy broke in flight, probably when the airplane was flying in an area subject to severe icing.

Crash of a Fairchild C-123B-18-FA Provider in Nakhon Phanom: 5 killed

Date & Time: Apr 12, 1963 at 1815 LT
Type of aircraft:
Operator:
Registration:
56-4380
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Nakhon Phanom – Udon Thani – Korat – Bangkok
MSN:
20264
YOM:
1956
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
5
Circumstances:
After taking off from the airfield at Nakhon Phanom the pilot attempted to snare a red flag on top of a flag pole. Apparently, this trick had been attempted before by other C-123 crew based in Thailand. During the second attempt the left wing hit a house and the aircraft crashed killing all three crew and two Thai civilians on the ground. Nakhon Phanom Airfield in north-eastern Thailand, close to the border with Laos, was still under construction when the accident happened. It is possible that the C-123s were bringing in construction equipment or supplies.
Crew (777 TCS, 464 TCW):
1st Lt Raymond E. Doyle,
1st Lt Richard L. Hatlestad,
S/Sgt Stanley E. Truesdale.
Source: Vietnam Air Lossed by Chris Hobson.

Crash of a Douglas C-133B-DL Cargomaster at Travis AFB: 9 killed

Date & Time: Apr 10, 1963 at 1612 LT
Type of aircraft:
Operator:
Registration:
59-0523
Flight Type:
Survivors:
No
Schedule:
Travis - Travis
MSN:
45574
YOM:
1959
Crew on board:
9
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
9
Circumstances:
The crew was completing a local training flight at Travis AFB. After few circuits, the pilot-in-command started a new approach to runway 21L in poor weather conditions when control was lost. The airplane crashed in a huge explosion 0,8 mile short of runway threshold and was destroyed. All nine crew members were killed.

Crash of a Douglas C-47A-DL at RAF Bentwaters

Date & Time: Mar 4, 1963
Operator:
Registration:
43-30655
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Bentwaters - Bentwaters
MSN:
13806
YOM:
1944
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The crew (three engineers) were engaged in a series of ground tests. While rolling at high speed on a taxiway, control was lost. The airplane veered off taxiway to the left and eventually collided with trees. The airplane was damaged beyond repair while all three occupants were uninjured.
Probable cause:
It was determined that the crew failed to prepare the mission properly and forgot to remove the rudder lock prior to start the tests manoeuvres.

Crash of a Boeing KC-135A-BN Stratotanker at Eielson AFB: 9 killed

Date & Time: Feb 27, 1963
Type of aircraft:
Operator:
Registration:
56-3597
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Eielson - Eielson
MSN:
17346
YOM:
1958
Crew on board:
7
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
9
Circumstances:
The crew departed Eielson AFB, engaged in a routine refueling mission. Just after liftoff, while in initial climb, the engine number one failed. The airplane banked left and crashed in a huge explosion onto several buildings. All seven crew members and two people on the ground were killed. The aircraft and two buildings (the crew rest house and a guard local) were destroyed.
Probable cause:
Failure of the engine number one at takeoff.