Crash of a Boeing 707-131B in Los Angeles

Date & Time: Jan 16, 1974 at 0135 LT
Type of aircraft:
Operator:
Registration:
N757TW
Survivors:
Yes
Schedule:
New York - Los Angeles
MSN:
18395/309
YOM:
1962
Flight number:
TW701
Crew on board:
7
Crew fatalities:
Pax on board:
56
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
15800
Captain / Total hours on type:
6750.00
Copilot / Total flying hours:
4335
Copilot / Total hours on type:
2040
Aircraft flight hours:
38876
Circumstances:
Following an uneventful flight from New York-JFK, the crew started the descent to Los Angeles Airport runway 06R over the sea. Weather was clear but on short final, the crew encountered local patches of fog and visual control with the ground was lost. The airplane continued the approach and landed nose wheel first with a vertical g load of 4.6. This caused the nose wheel to collapse rearward and a fire started in the nose wheel well area. The fire in the nose wheel well was initiated by the burning nose gear tires. The fire was fed by hydraulic fluid that escaped from broken nose wheel steering hydraulic lines. Evacuation of the aircraft resulted in minor or serious injuries to eight passengers. Firefighting personnel were unable to extinguish the fire in the nose wheel well before it spread to the fuselage and destroyed the cockpit and the passenger cabin.
Probable cause:
It was determined that the probable cause of the accident was the continuation of a visual approach after the flight crew lost outside visual reference because of a low cloud and fog encounter. The following factors were reported:
- While executing a night visual approach over water to runway 06R at the Los Angeles International Airport, the flight encountered ground fog when the crew prepared to flare the aircraft for landing,
- The weather in the Los Angeles area was clear; however, the existing visibility at the approach end of runway 6R was considerably less than predicted by the National Weather Service because of fog.
Final Report:

Crash of a Boeing 707-330B in New Delhi

Date & Time: Dec 20, 1973 at 0103 LT
Type of aircraft:
Operator:
Registration:
D-ABOT
Survivors:
Yes
Schedule:
Bangkok - New Delhi - Frankfurt
MSN:
18463
YOM:
1964
Flight number:
LH645
Country:
Region:
Crew on board:
11
Crew fatalities:
Pax on board:
98
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
10992
Captain / Total hours on type:
5503.00
Copilot / Total flying hours:
1303
Copilot / Total hours on type:
81
Aircraft flight hours:
41731
Circumstances:
The approach to New Delhi-Palam Airport was initiated by night and marginal weather conditions with a limited visibility due to haze/fog. The copilot was the pilot-in-command and about 8 km on final, the airplane was too high on the glide with an approach speed in excess of 65 knots. Flaps were configured in a down position and the airplane started to lose height and speed. The captain failed to intervene and to realize that the airplane was too low when it struck approach lights and various equipments about 460 meters short of runway threshold. Out of control, the airplane crashed on the ground, lost its four engines and slid for few hundred meters before coming to rest in flames. Fire brigade and rescuers arrived on the scene 18 minutes later and the aircraft was largely consumed by fire. All 109 occupants were evacuated, among them 40 were injured.
Probable cause:
The accident was the consequence of several errors on part of the flying crew during a night approach. The following factors were reported:
- Deviation from the approved published procedure caused the aircraft to be unstable,
- Failure to exercise an adequate monitoring of the flight,
- Lack of supervision on part of the captain,
- Poor flight control on part of the copilot who was the pilot-in-command,
- Poor crew coordination,
- Poor crew resources management,
- Lack of adequate weather information,
- Lack of visibility due to haze/fog down to 200 feet above ground which may cause an optical illusion to pilots.

Ground explosion of a Boeing 707-321B in Rome: 33 killed

Date & Time: Dec 17, 1973 at 1300 LT
Type of aircraft:
Operator:
Registration:
N407PA
Flight Phase:
Survivors:
Yes
Schedule:
New York - London - Rome - Beirut - Tehran
MSN:
18838
YOM:
1965
Flight number:
PA110
Country:
Region:
Crew on board:
11
Crew fatalities:
Pax on board:
166
Pax fatalities:
Other fatalities:
Total fatalities:
33
Circumstances:
While parked at Rome-Fiumicino-Leonardo da Vinci Airport and ready for departure, the aircraft was attacked by six members from a Palestinian terrorist group. Shots burst with police forces and several grenades detonated, causing the aircraft to catch fire. 15 occupants were seriously injured while 129 others were unhurt. Unfortunately, 33 passengers were killed during this terrorist attack.
Probable cause:
Terrorist attack.
Final Report:

Crash of a Boeing 707-321C in Boston: 3 killed

Date & Time: Nov 3, 1973 at 0939 LT
Type of aircraft:
Operator:
Registration:
N458PA
Flight Type:
Survivors:
No
Schedule:
New York - Glasgow - Frankfurt
MSN:
19368/640
YOM:
1967
Flight number:
PA160
Crew on board:
3
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
3
Captain / Total flying hours:
16477
Captain / Total hours on type:
5824.00
Copilot / Total flying hours:
3843
Copilot / Total hours on type:
3843
Aircraft flight hours:
24537
Circumstances:
Pan American World Airways Clipper Flight 160 was a scheduled cargo flight from New York-JFK to Frankfurt (FRA), Germany, with a scheduled stop at Prestwick (PIK), Scotland. At 08:25 the flight departed JFK. The aircraft was carrying 52912 lb (24000 kg) of cargo, 15,360 lb (6967 kg) of which were chemicals. After departure, Clipper 160 was vectored on course while climbing to FL330. At 08:44, Clipper 160's clearance was amended, and it was instructed to maintain FL310 as a final cruising altitude. Clipper 160 reported level at FL310 at 08:50. As the flight approached Sherbrooke VORTAC 100 miles east of Montreal, Canada, at about 09:04, it advised Pan American Operations (PANOP) in New York that smoke had accumulated in the "lower 41" electrical compartment, and that the flight was diverting to Boston. At 09:08, Clipper 160 advised Montreal Center that they were level at FL310 and wanted to return to JFK. Montreal Center cleared Clipper 160 for a right turn to a heading of 180 degrees. At 09:10, Clipper 160 advised PANOP that it was returning to New York and that the smoke seemed to be "getting a little thicker in here." At 09:11, the crew advised PANOP that they were now going to Boston and that "this smoke is getting too thick." They also requested that emergency equipment be available when they arrived at Boston. During this conversation, the comment was made that the "cockpit's full back there." During its return to Boston, the flight was given preferential air traffic control treatment, although it had not declared an emergency. After issuing appropriate descent clearances en route so that fuel could be burned off more rapidly at lower altitudes, at 09:26:30 Boston Center advised Boston Arrival Radar that the flight was at 2,000 feet. At 09:29, Clipper 160 asked Boston Center for the flight's distance from Boston, and added, "The DME's don't seem to be working." The Center answered, "You're passing abeam, Pease Air Force Base, right now, sir, and you're about 40 to 45 miles to the northwest of Boston." The first communication between Clipper 160 and the arrival radar controller was at 09:31:21. The flight was cleared "direct Boston, maintain 2,000." The controller asked if the flight was declaring an emergency; the reply was "negative on the emergency, and may we have runway 33 left?" The controller approved the request, and the flight proceeded to Boston as cleared. At approximately the same time, the captain instructed the crew to "shut down everything you don't need." At 09:34:20, the controller asked, "Clipper 160, what do you show for a compass heading right now?" Clipper 160 answered, "Compass heading at this time is 205." The controller then asked, "will you accept a vector for a visual approach to a 5-mile final for runway 33 left, or do you want to be extended out further?" The crew replied, "Negative, we want to get it on the ground as soon as possible." At 09:35:46, the controller stated, "Clipper 160, advise anytime you have the airport in sight." Clipper 160 did not reply. At 09:37:04, the arrival controller made the following transmission: "Clipper 160, this is Boston approach control. If you read, squawk ident on any transponder. I see your transponder just became inoperative. Continue inbound now for runway 33 left, you're No. 1. There is a Lufthansa 747 on a 3-mile final for runway 27, the spacing is good. Remain on this frequency, Clipper 160." There was no reply from the flight. With flaps and spoilers had been extended for speed reduction, the airplane approached runway 33L. The yaw damper was rendered inoperative by the uncoordinated execution of emergency procedures earlier. This made the 707 extremely difficult to control at low speeds. Control was lost and the airplane struck the ground nose down about 262 feet from the right edge of the approach end of runway 33.Pan American World Airways Clipper Flight 160 was a scheduled cargo flight from New York-JFK to Frankfurt (FRA), Germany, with a scheduled stop at Prestwick (PIK), Scotland. At 08:25 the flight departed JFK. The aircraft was carrying 52912 lb (24000 kg) of cargo, 15,360 lb (6967 kg) of which were chemicals. After departure, Clipper 160 was vectored on course while climbing to FL330. At 08:44, Clipper 160's clearance was amended, and it was instructed to maintain FL310 as a final cruising altitude. Clipper 160 reported level at FL310 at 08:50. As the flight approached Sherbrooke VORTAC 100 miles east of Montreal, Canada, at about 09:04, it advised Pan American Operations (PANOP) in New York that smoke had accumulated in the "lower 41" electrical compartment, and that the flight was diverting to Boston. At 09:08, Clipper 160 advised Montreal Center that they were level at FL310 and wanted to return to JFK. Montreal Center cleared Clipper 160 for a right turn to a heading of 180 degrees. At 09:10, Clipper 160 advised PANOP that it was returning to New York and that the smoke seemed to be "getting a little thicker in here." At 09:11, the crew advised PANOP that they were now going to Boston and that "this smoke is getting too thick." They also requested that emergency equipment be available when they arrived at Boston. During this conversation, the comment was made that the "cockpit's full back there." During its return to Boston, the flight was given preferential air traffic control treatment, although it had not declared an emergency. After issuing appropriate descent clearances en route so that fuel could be burned off more rapidly at lower altitudes, at 09:26:30 Boston Center advised Boston Arrival Radar that the flight was at 2,000 feet. At 09:29, Clipper 160 asked Boston Center for the flight's distance from Boston, and added, "The DME's don't seem to be working." The Center answered, "You're passing abeam, Pease Air Force Base, right now, sir, and you're about 40 to 45 miles to the northwest of Boston." The first communication between Clipper 160 and the arrival radar controller was at 09:31:21. The flight was cleared "direct Boston, maintain 2,000." The controller asked if the flight was declaring an emergency; the reply was "negative on the emergency, and may we have runway 33 left?" The controller approved the request, and the flight proceeded to Boston as cleared. At approximately the same time, the captain instructed the crew to "shut down everything you don't need." At 09:34:20, the controller asked, "Clipper 160, what do you show for a compass heading right now?" Clipper 160 answered, "Compass heading at this time is 205." The controller then asked, "will you accept a vector for a visual approach to a 5-mile final for runway 33 left, or do you want to be extended out further?" The crew replied, "Negative, we want to get it on the ground as soon as possible." At 09:35:46, the controller stated, "Clipper 160, advise anytime you have the airport in sight." Clipper 160 did not reply. At 09:37:04, the arrival controller made the following transmission: "Clipper 160, this is Boston approach control. If you read, squawk ident on any transponder. I see your transponder just became inoperative. Continue inbound now for runway 33 left, you're No. 1. There is a Lufthansa 747 on a 3-mile final for runway 27, the spacing is good. Remain on this frequency, Clipper 160." There was no reply from the flight. With flaps and spoilers had been extended for speed reduction, the airplane approached runway 33L. The yaw damper was rendered inoperative by the uncoordinated execution of emergency procedures earlier. This made the 707 extremely difficult to control at low speeds. Control was lost and the airplane struck the ground nose down about 262 feet from the right edge of the approach end of runway 33. The aircraft was totally destroyed and all three crew members were killed.
Probable cause:
The presence of smoke in the cockpit which was continuously generated and uncontrollable. The smoke led to an emergency situation that culminated in loss of control of the aircraft during final approach, when the crew in uncoordinated action deactivated the yaw damper in conjunction with incompatible positioning of flight spoilers and wing flaps. The NTSB further determines that the dense smoke in the cockpit seriously impaired the flight crew's vision and ability to function effectively during the emergency. Although the source of the smoke could not be established conclusively, the NTSB believes that the spontaneous chemical reaction between leaking acid, improperly packaged and stowed, and the improper sawdust packing surrounding the acid's package initiated the accident sequence. A contributing factor was the general lack of compliance with existing regulations governing the transportation of hazardous materials which resulted from the complexity of the regulations, the industry wide lack of familiarity with the regulations and the working level, the over-lapping jurisdictions, and the inadequacy of government surveillance.
Final Report:

Crash of a Boeing 707-321B off Papeete: 78 killed

Date & Time: Jul 22, 1973 at 2206 LT
Type of aircraft:
Operator:
Registration:
N417PA
Flight Phase:
Survivors:
Yes
Schedule:
Auckland - Papeete - Los Angeles
MSN:
18959/470
YOM:
1966
Flight number:
PA816
Location:
Region:
Crew on board:
10
Crew fatalities:
Pax on board:
69
Pax fatalities:
Other fatalities:
Total fatalities:
78
Captain / Total flying hours:
25275
Captain / Total hours on type:
8384.00
Copilot / Total flying hours:
21575
Copilot / Total hours on type:
9248
Aircraft flight hours:
27314
Circumstances:
The airplane was completing a internationaal service from Auckland to Los Angeles with an intermediate stop in Papeete, Tahiti. After a night takeoff from Papeete-Faaa Airport runway 04, while climbing to a height of 300 feet, the pilot-in-command initiated a turn to the left according to departure procedures. Then the aircraft entered a left banked, lost altitude and crashed into the sea about 3 km offshore. Few debris were found floating on water and one passenger was evacuated while all 78 other occupants were killed. The aircraft sank by a depth of about 700 meters and both CVR and FDR were not found.
Probable cause:
Due to lack of evidences, the exact cause of the accident could not be determined with certainty. However, it is considered possible that the loss of control during initial climb was the consequence of an instrument failure that may have diverted the crew's attention. As the accident occurred by night over the sea, there were no visual references available and the assumption that the pilot-in-command may have suffered a spatial disorientation was not ruled out.
Final Report:

Crash of a Boeing 707-345C in Paris: 123 killed

Date & Time: Jul 11, 1973 at 1403 LT
Type of aircraft:
Operator:
Registration:
PP-VJZ
Survivors:
Yes
Schedule:
São Paulo – Rio de Janeiro – Paris
MSN:
19841
YOM:
1968
Flight number:
RG820
Country:
Region:
Crew on board:
17
Crew fatalities:
Pax on board:
117
Pax fatalities:
Other fatalities:
Total fatalities:
123
Captain / Total flying hours:
17959
Captain / Total hours on type:
4642.00
Copilot / Total flying hours:
12613
Copilot / Total hours on type:
5055
Aircraft flight hours:
21470
Aircraft flight cycles:
5677
Circumstances:
The airplane departed Rio de Janeiro-Galeão Airport at 0303LT on flight RG820 to Paris-Orly Airport. The en route part of the flight was uneventful. At 13:57 the aircraft had descended to FL80 and contacted Orly approach, who told the crew to maintain FL80 and head to the OLS VOR which would take the aircraft to the downwind leg of runway 26. At 13:58:20 the flight crew contacted Orly approach and reported a "problem with fire on board". An emergency descent was requested. At 13:59 clearance was given to descend to 3000 feet for a runway 07 landing, making a straight-in approach possible. While the situation on board was getting worse (smoke entering the cockpit and passengers becoming asphyxiated), a clearance to descend to 2000 feet was given at 14:01:10. The flight crew put on oxygen masks as smoke was making it impossible to read the instruments. At 14:03 the pilot decided to make an emergency landing 5 km short of the runway with gear down and flaps at 80°. The Boeing approached with considerable nose-up attitude, in a slight left bank. The aircraft truncated some small trees and made a heavy landing on a field. Both main gears collapsed and the engines were torn off in the subsequent skid. The fuselage however, remained intact. Ten occupants (all crew members) evacuated the aircraft. By the time the firemen arrived (6-7 minutes later) the fire had burned through the roof and there was no sign of life. Of the four unconscious occupants the firemen could evacuate, only one survived.
Probable cause:
A fire which appears to have started in the washbasin unit of the aft right toilet. It was detected because smoke had entered the adjacent left toilet. The fire may have been started by an electrical fault or by the carelessness of a passenger. The difficulty in locating the fire made the actions of cabin personnel ineffective. The flight crew did not have the facilities to intervene usefully from the cockpit against the spread of the fire and the invasion of smoke. The lack of visibility in the cockpit prompted the crew to decided on a forced landing. At the time of touch-down the fire was confined to the area of the aft toilets. The occupants of the passenger cabin were poisoned, to varying degrees by carbon monoxide and other combustion products.
Final Report:

Crash of a Boeing 707-327C off Rio de Janeiro: 2 killed

Date & Time: Jun 9, 1973
Type of aircraft:
Operator:
Registration:
PP-VLJ
Flight Type:
Survivors:
Yes
MSN:
19106
YOM:
1966
Country:
Crew on board:
4
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
2
Circumstances:
On final approach to runway 14 at Rio de Janeiro-Galeão Airport, at an altitude of 200 feet, the airplane nosed down and crashed into the sea. Two crew members were rescued while two others were killed. The aircraft was destroyed.
Probable cause:
On short final, with speed brake lever at 45° and inboard spoilers deactivated, the crew noted that the spoiler switch cover was open. It is believed that the copilot mistakenly closed the spoiler switch cover and thus activated the inboard spoiler, causing the aircraft to pitch down and to crash into the sea.

Crash of a Boeing 707-3D3C in Kano: 176 killed

Date & Time: Jan 22, 1973 at 0930 LT
Type of aircraft:
Operator:
Registration:
JY-ADO
Survivors:
Yes
Schedule:
Jeddah - Lagos
MSN:
20494/850
YOM:
1971
Location:
Country:
Region:
Crew on board:
9
Crew fatalities:
Pax on board:
193
Pax fatalities:
Other fatalities:
Total fatalities:
176
Circumstances:
The aircraft was completing a charter flight from Jeddah to Lagos on behalf of Nigeria Airways, carrying Nigerian pilgrims flying back home. En route, the crew was informed about bad weather in Lagos and was rerouted to Kano-Mallam Aminu Kano Airport. On final approach, the pilot-in-command encountered mist when during the last segment, control was lost. The airplane nosed down and struck the runway surface with its nose gear first. On impact, the nose gear collapsed then both main gears touched the ground and punctured the fuel tanks. Out of control, the airplane skidded on runway, lost its both left engines then made a 180 turn before coming to rest in flames. Three crew members and 23 passengers were rescued while 176 other occupants were killed. The aircraft was totally destroyed by a post crash fire. Up to date, this was the worst plane crash in History.
Probable cause:
The exact cause of the accident remain unclear. Nevertheless, it is believed that control was lost on short final due to wake turbulences and the aircraft adopted a nose-down attitude before crashing onto the runway.

Crash of a Boeing 707-321C in Edmonton: 5 killed

Date & Time: Jan 2, 1973 at 0034 LT
Type of aircraft:
Operator:
Registration:
CF-PWZ
Flight Type:
Survivors:
No
Schedule:
Toronto – Edmonton – Vancouver – Seoul
MSN:
18826
YOM:
1964
Flight number:
PW3801
Country:
Crew on board:
3
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
5
Aircraft flight hours:
33059
Aircraft flight cycles:
9458
Circumstances:
The airplane was engaged in a cargo flight from Toronto to Seoul with intermediate stops in Edmonton and Vancouver, carrying two passengers, three crew members and a load of 86 Holsteins cows. Following an uneventful flight, the crew was cleared for an ILS approach to runway 29. At this time, weather conditions were considered as poor with limited visibility due to the night, snow falls and turbulences as a cold front was approaching the area. The copilot was in command and due to various factors, he failed to realize that the sink rate was too high on short final when the captain decided to regain control. Then the airplane struck poplar trees located 3,137 meters short of runway and electric cables, stalled and crashed in flames in a gravel pit located less than three km from the airfield. The aircraft was destroyed and all five occupants and 86 cows were killed.
Probable cause:
It was determined that the crew was tired at the time of the accident and that the captain was on duty since 29 hours without sufficient rest time. Approach procedures negligences and poor crew coordination affected flight conditions. Difficult weather conditions with low clouds, snow falls and turbulences contributed to the difficulty of the flight conditions, as well as the fact that the copilot was inexperienced. It was reported he was recently promoted on B707 and this was his first approach following a six-week holiday period. Finally, the crew encountered technical issues with the generators on engines n°1 and 4 on final approach.

Crash of a Boeing 707-366C near Beni Suef: 6 killed

Date & Time: Dec 5, 1972 at 1505 LT
Type of aircraft:
Operator:
Registration:
SU-AOW
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Cairo - Cairo
MSN:
19845/809
YOM:
1969
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
3
Pax fatalities:
Other fatalities:
Total fatalities:
6
Circumstances:
The crew (three pilots and three technicians) departed Cairo-Intl Airport at 1434LT on a training flight. En route, the airplane went out off control and crashed along the A1C Highway located near Beni Suef, about 125 km south of Cairo. The aircraft was destroyed and all six occupants were killed.
Probable cause:
It is believed that the accident was caused by the failure of the engine n°4 pylon in flight, causing the aircraft to be uncontrollable.