Crash of a Boeing C-97G Stratofreighter in Mexico City: 65 killed

Date & Time: Jul 30, 1987 at 1703 LT
Registration:
HI-481
Flight Phase:
Flight Type:
Survivors:
Yes
Site:
Schedule:
Mexico City - Miami
MSN:
16687
YOM:
1952
Country:
Crew on board:
4
Crew fatalities:
Pax on board:
8
Pax fatalities:
Other fatalities:
Total fatalities:
65
Circumstances:
The four engine airplane departed Mexico City-Benito Juarez Airport at 1700LT on a cargo flight to Miami-Intl, Florida, carrying eight passengers, four crew members and a load consisting of 18 racing horses. After takeoff, during initial climb, the aircraft encountered difficulties to gain sufficient altitude. The crew elected to add power but the aircraft failed to gain height. The captain attempted an emergency landing on a road when the aircraft struck power lines and crashed in the city, few km from the airport. The aircraft as well as several houses and buildings were destroyed. The captain was rescued while 11 other occupants as well as 54 people on the ground were killed. 50 other people were wounded, some seriously.
Probable cause:
It was determined that the total weight of the aircraft was well above the MTOW at the time of the accident. It is also believed that the fuel stored in the tanks did not have the correct octane number since it had an index of 100 when it should have presented an index estimated between 130 and 145. This was presumably caused by poor flight preparation on part of the crew and the ground personnel. Due to insufficient octane index, the engine failed to provide sufficient power during initial climb, which was considered as a contributing factor. It was also reported that the horses panicked and moved in the cabin, causing the CofG to be modified. In such conditions, the aircraft became unstable and difficult to control.

Crash of a Boeing C-97G-26-BO Stratofreighter in Uli: 5 killed

Date & Time: Sep 26, 1969 at 1840 LT
Operator:
Registration:
N52676
Flight Type:
Survivors:
No
Schedule:
São Tomé – Uli
MSN:
16707
YOM:
1952
Location:
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
5
Circumstances:
On final approach to Uli Airstrip, the four engine aircraft was too low, struck trees and crashed in a wooded area located few km short of runway threshold. The aircraft was destroyed and all five crew members were killed. They were completing a humanitarian mission on behalf of the International committee of the Red Cross.

Crash of a Boeing C-97G Stratofreighter in Uli

Date & Time: May 8, 1969
Operator:
Registration:
N52679
Flight Type:
Survivors:
Yes
MSN:
16710
YOM:
1952
Location:
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
For unknown reason, the airplane belly landed at Uli-Annabel Airport, slid for dozen yards and came to rest. Only the captain was slightly injured while all other occupants escaped unhurt. The aircraft was damaged beyond repair. It was completing a humanitarian mission to Biafra.

Crash of a Boeing EC-97G Stratofreighter at Palmdale AFB

Date & Time: Oct 28, 1965
Operator:
Registration:
53-0358
Flight Type:
Survivors:
Yes
MSN:
17140
YOM:
1953
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
For undetermined reason, the four engine aircraft made a wheels-up landing at Palmdale AFB, slid for several yards and came to rest. There were no injuries but the airplane was damaged beyond repair.

Crash of a Boeing C-97A Stratofreighter into the Pacific Ocean: 7 killed

Date & Time: Jan 19, 1958
Operator:
Registration:
49-2597
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Travis – Hickam – Wake Island – Tokyo
MSN:
16219
YOM:
1949
Country:
Region:
Crew on board:
7
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
7
Circumstances:
The crew was performing a flight from Travis AFB to Tokyo with intermediate stops at Hickam (Hawaii) and Wake Island. On the leg from Hawaii to Wake Island, the airplane crashed into the ocean in unknown circumstances. SAR operations were conducted for several days but eventually suspended as no trace of the aircraft nor the crew was ever found. The last position of the airplane was reported 375 miles southwest of Honolulu.

Crash of a Boeing C-97C-35-BO Stratofreighter into the Pacific Ocean: 67 killed

Date & Time: Mar 22, 1957 at 0037 LT
Operator:
Registration:
50-0702
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Travis – Honolulu – Wake Island – Yokota
MSN:
16246
YOM:
1950
Country:
Region:
Crew on board:
10
Crew fatalities:
Pax on board:
57
Pax fatalities:
Other fatalities:
Total fatalities:
67
Circumstances:
En route from Wake Island to Yokota AFB, Tokyo, while cruising at an altitude of 8,000 feet, the crew informed ground about his position 320 km off the Japanese coast and that all was ok on board. Shortly later, the airplane disappeared and the crew was unable to send any distress call. SAR operations were conducted for eight days but no trace of the airplane nor the 67 occupants was ever found.
Probable cause:
Due to lack of evidences, investigations were unable to determine the exact cause of the accident. Nevertheless, it was reported that weather conditions were not so good with clouds between 1,500 and 3,000 meters with turbulences and icing conditions.

Crash of a Boeing C-97A Stratofreighter in Kelly AFB: 4 killed

Date & Time: Oct 22, 1951
Operator:
Registration:
48-0413
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Kelly - Kelly
MSN:
16025
YOM:
1948
Crew on board:
6
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
4
Circumstances:
At liftoff, the four engine aircraft stalled and crashed in flames on the edge of the runway. Four crew members were killed while two others were injured.

Crash of a Boeing C-97A Stratofreighter into the Atlantic Ocean: 12 killed

Date & Time: Oct 15, 1951
Operator:
Registration:
49-2602
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Frankfurt – Lajes – Westover
MSN:
16224
YOM:
1949
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
9
Pax fatalities:
Other fatalities:
Total fatalities:
12
Circumstances:
The four engine aircraft left Frankfurt-Main Airport at 0936LT on October 14 bound for Lajes where it landed at 1603LT. After refueling, the airplane left Lajes at 1851LT bound for Westover AFB, Massachusetts. About an hour later, the crew informed ground about technical problems with radio compas and radio altimeters and decided to return to Lajes where it landed safely at 2019LT. According to duty time and rest time, the crew decided to pass the overnight in Lajes and took off on October 15 at 0843LT bound for the US. As the aircraft failed to arrive, SAR operations were conducted but were eventually suspended few days later as no trace of the aircraft nor the crew was found.
Probable cause:
In absence of evidences, the exact cause of the accident remains unknown.

Crash of a Boeing C-97A Stratofreighter in Kelly AFB: 9 killed

Date & Time: Jun 6, 1951 at 1016 LT
Operator:
Registration:
48-0398
Flight Phase:
Flight Type:
Survivors:
No
MSN:
16010
Crew on board:
9
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
9
Circumstances:
Shortly after takeoff from Kelly AFB, while in initial climb, the aircraft went out of control and crashed in a huge explosion less than a mile from the airfield. The aircraft was destroyed by impact forces and a post crash fire and all nine crew members were killed.
Probable cause:
Loss of control shortly after liftoff caused by an asymmetric flap extension.

Crash of a Boeing XC-97 Stratofreighter in Wright-Patterson AFB: 5 killed

Date & Time: May 22, 1947
Operator:
Registration:
43-27472
Flight Type:
Survivors:
Yes
MSN:
8483
Crew on board:
7
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
5
Circumstances:
On final approach to Wright-Patterson AFB, the aircraft went out of control and crashed in flames in a field located 5 miles short of runway. Five crew members were killed while two others were seriously injured.