Crash of a Vickers 802 Viscount in Craigie

Date & Time: Apr 28, 1958 at 2208 LT
Type of aircraft:
Operator:
Registration:
G-AORC
Flight Type:
Survivors:
Yes
Schedule:
London - Prestwick
MSN:
254
YOM:
1957
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The accident occurred at 2208 hours during an unscheduled flight from London to Prestwick where the aircraft mas to pick up passengers for BOAC under a charter arrangement and fly them to London. The aircraft took off at 2042 hours GMT from London Airport, cruised on the Airways at 18 500 ft and then commenced the descent to Prestwick with an initial clearance to 8 500 ft. Within a few minutes the clearance was amended to cross the Prestwick radio beacon at 4 000 ft. The descent appeared to the pilots to be normal until the aircraft struck the ground close to the site of the beacon very shortly after the captain had reported passing 11 000 ft in the holding pattern. The aircraft slid along the ground for 400 yards, and fire broke out in the starboard wing, Of the five crew aboard the aircraft, three were seriously injured. The airplane was totally destroyed by fire.
Probable cause:
The captain flew the aircraft into the ground during the descent to Prestwick after misreading the altimeter by 10 000 ft. Whilst a somewhat ambiguous presentation of height on the pressure altimeter may have initiated this misreading. A lack of cooperation between the captain and first officer and a lack of alertness on the part of the first officer were the main contributory factors.
Final Report:

Crash of an Airspeed AS.57 Ambassador 2 in Munich: 23 killed

Date & Time: Feb 6, 1958 at 1603 LT
Type of aircraft:
Operator:
Registration:
G-ALZU
Flight Phase:
Survivors:
Yes
Schedule:
Belgrade – Munich – Manchester
MSN:
5217
YOM:
1951
Flight number:
CY609
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
38
Pax fatalities:
Other fatalities:
Total fatalities:
23
Captain / Total flying hours:
7337
Captain / Total hours on type:
1722.00
Copilot / Total flying hours:
8463
Copilot / Total hours on type:
3143
Circumstances:
The aircraft had carried out a special flight on 3 February 1958, from England to Belgrade, making an intermediate landing at Munich-Riem Airport for refuelling purposes. On 6 February it flew back from Belgrade, bound for Manchester. As planned, it again made an intermediate landing at Munich to refuel, landing there at 1417LT. The aircraft made three attempts at take-off, two were abandoned, and the accident occurred during the third attempt. The copilot abandoned the first take-off because the boost pressure readings of both engines showed upward variations, rising 2 or 3 inches above the usual reading of 57.5 inches. The second attempt to take-off followed immediately after the aircraft had taxied back to the beginning of the runway. The engine run-up was not repeated. The captain abandoned the second take-off because the boost pressure reading (this time on the port engine only) again rose beyond the normal maximum value to 60 inches. In each case the take-off was abandoned approximately half way down the runway. After the second attempt the aircraft continued rolling as far as the end of the runway and from there proceeded to the terminal building. The passengers disembarked, and the BEA station engineer went aboard. He then pointed out to the two pilots that the variations in boost pressure were connected with the elevation of Munich Airport. After a short discussion, the pilots decided to make a third (attempt at) take-off, and the passengers were told to board the aircraft again. Before the fresh (attempt to) take- off, a further engine run-up was carried out. After take-off had begun, the boost pressure reading of the port engine again fluctuated somewhat, but this ceased after the captain had throttled back slightly for a short time. After he had opened up the throttle fully again, no further fluctuation were observed. The aircraft never became airborne in the course of the third attempt at take-off. It traveled on over the whole length of the runway and the adjoining grass-covered stopway (250 m). At the end of the stopway it crashed through a wooden fence which marked the aerodrome boundary, cleared a secondary road and struck a house standing on the other side of the road. The left wing was torn off outboard of the engine mounting. Parts of the tail unit were also torn off here. The house caught fire. The aircraft then crashed into a wooden hut standing on a concrete base about 100 m further on, striking it with the right side of the rear section of the fuselage. The fuselage was torn away on a level with the trailing edge of the wing. The hut and the part of the fuselage which was torn away caught fire. The remainder of the aircraft wreckage slid on for a further 70 m. Of the 44 occupants (6 crew and 38 passengers) on board, 21 were killed instantly. The others received injuries of a more or less serious nature. Two died later in hospital as a result of their injuries. The house which was struck by the aircraft was badly damaged by fire. The hut was destroyed by fire. Among those killed were eight players and the trainer. The president of the club and ten other players survived the accident.
Probable cause:
During the stop of almost two hours at Munich, a rough layer of ice formed on the upper surface of the wings as a result of snowfall. This layer of ice considerably impaired the aerodynamic efficiency of the aircraft, had a detrimental effect on the acceleration of the aircraft during the take-off process and increased the required unstick-speed. Thus, under the conditions obtaining at the time of take-off, the aircraft was not able to attain this speed within the rolling distance available. It is not out of the question that, in the final phase of the take-off process, further causes may also have had an effect on the accident. British tests on the effect of slush on the takeoff process of an aircraft led the Luftfahrt-Bundesamt to decide to re-open the investigation in November 1964. In August 1966 the Commission arrived at the view that in the runway conditions obtaining at Munich-Riem at the time of the accident, the aircraft G-ALZU without ice on the wing upper surfaces could have attained the required unstick-speed and would have been bound to have done so. The failure to unstick, and hence the accident, are thus to be attributed to a series of inter-related causal factors viz.:
- Decrease in the lift coefficient resulting from ice on the wing upper surfaces and a consequent increase in the minimum unstick speed,
- Increase in drag caused by ice accretion, particularly at the higher angle of incidence during the unstick process,
- Reduction by slush and spray of the margin of performance of the aircraft and effect of the slush on the trim.
The differing assessments of the situation by the two pilots during the final phase of the take-off to be inferred from Captain Thain's statements resulted in their acting in opposition which probably increased the severity of the accident.
Final Report:

Crash of a Vickers 802 Viscount in Ballerup

Date & Time: Nov 17, 1957 at 0503 LT
Type of aircraft:
Operator:
Registration:
G-AOHP
Flight Type:
Survivors:
Yes
Schedule:
London – Copenhagen
MSN:
165
YOM:
17
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
9034
Captain / Total hours on type:
426.00
Circumstances:
On the day of the accident the aircraft had taken off from London Airport at 0130 hours GMT on a scheduled flight to Kastrup Airport, Copenhagen, carrying a crew of 2 and a cargo of mail, freight and newspapers. The flight was without incident until when holding over Radio Beacon Bella, three of the aircraft's four engines stopped. It lost height and a forced landing was made at 0403 hours GMT, 14 miles northwest of Kastrup. The aircraft was considerably damaged, but there was no fire. The crew were not injured.
Probable cause:
The cause of the engine failures, which brought about the accident, lay in the accumulation of ice on the engine cowlings which, because of malfunctioning of the de-icing system, was allowed to build up before being dislodged. Passage of the lumps of ice through the engines caused partial flame out, which produced sufficient loss of power to initiate the auto-feathering and thus to stop the engines.
Final Report:

Crash of a Vickers 802 Viscount in Belfast: 7 killed

Date & Time: Oct 23, 1957 at 1651 LT
Type of aircraft:
Operator:
Registration:
G-AOJA
Flight Type:
Survivors:
No
Schedule:
London - Belfast
MSN:
150
YOM:
1956
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
7
Captain / Total flying hours:
7496
Captain / Total hours on type:
316.00
Copilot / Total flying hours:
7439
Copilot / Total hours on type:
259
Circumstances:
The aircraft departed London Airport at 1516LT hours GMT on a flight to Belfast in pursuance of a special charter, carrying 5 crew and 2 company employees. At 1645 the aircraft was taken over by the Precision Approach Controller for a GCA talkdown on runway 28 (276°) in weather conditions which the captain thought would allow him to become visual at or above his critical height of 500 ft. Soon after '3/4 of a mile from touchdown' the aircraft was to the right of the centerline and shortly afterwards was 'well right of centerline', Just after '1/2 a mile from touchdown' the Precision Approach Controller said 'if you're overshooting turn left left 5° on overshoot over' to which the reply came '...overshooting'. At about this time a number of witnesses heard the aircraft "rev-up". Shortly thereafter (at 1651 hours) the aircraft crashed within the boundary of the airport approximately 1,000 ft to the south of the western end of runway 28, killing all occupants.
Probable cause:
A detailed examination of the autopilot equipment salvaged from the aircraft was carried out. There was nothing wrong with the auto pilot and it was not energized nor were the clutches engaged at the time of impact. Careful work was done in the course of a study by an expert to try to establish the flight path followed during the final dive and particular attention was paid to the possibility of a bunt manoeuvre or of a partial recovery from a stall. It appears possible to obtain conditions at impact similar to those reported without requiring any structural failure or unserviceability of the aircraft but also that the manoeuvre required would be of a fairly violent nature. Something may have deceived the pilot into some violent manoeuvre of the kind envisaged. It would seem that the only possible source of such deception would be the Flight System and associated instruments. All that was recovered from the wreckage was subjected to an exhaustive examination by an impressive body of experts and they failed to find anything which pointed to the malfunctioning of any instrument or indicator which could have led the pilot into a disastrous operation of the controls. Thus, the cause of the accident was not determined.
Final Report:

Crash of a De Havilland DH.114 Heron 1B in Port Ellen: 3 killed

Date & Time: Sep 28, 1957
Type of aircraft:
Operator:
Registration:
G-AOFY
Flight Type:
Survivors:
No
Schedule:
Glasgow - Port Ellen
MSN:
14099
YOM:
1956
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
3
Circumstances:
The four engine aircraft departed Glasgow Airport with a crew of two and a doctor who were flying to Port Ellen to pick up a patient. The approach to Port Ellen was started by night and marginal weather conditions. While making a turn to join the runway path, the airplane struck the ground with its left wing, cartwheeled and crashed. All three occupants were killed and the aircraft was destroyed.
Probable cause:
The pilot did not appreciate that the aircraft had rapidly lost height whilst he was making a visual half circuit to land. This could not have been due to the absence of sufficient visual reference in the prevailing conditions of darkness, very low cloud and drizzle. The urgent nature of the flight is considered to have influenced the pilot's decision to land.

Crash of a Vickers 701 Viscount in Manchester: 22 killed

Date & Time: Mar 14, 1957 at 1346 LT
Type of aircraft:
Operator:
Registration:
G-ALWE
Survivors:
No
Schedule:
Amsterdam – Manchester
MSN:
4
YOM:
1952
Flight number:
BE411
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
15
Pax fatalities:
Other fatalities:
Total fatalities:
22
Captain / Total flying hours:
6951
Captain / Total hours on type:
1051.00
Copilot / Total flying hours:
7314
Copilot / Total hours on type:
132
Aircraft flight hours:
6902
Aircraft flight cycles:
4553
Circumstances:
The aircraft was reaching the end of a scheduled passenger flight from Schiphol, Amsterdam, with a crew of 5 and 15 passengers aboard. Until the aircraft was roughly a mile from the threshold of the runway it was apparently making a perfectly normal approach, then it made a banked turn to starboard and continued to descend until the starboard wing tip struck the ground. With the starboard wing furrowing the earth and breaking up, the aircraft, obviously completely out of control, went on until it struck some houses, demolishing two of them (in one of which a woman and her infant son were killed). The aircraft came to rest in the ruins of the houses and immediately caught fire and set fire to the houses. All the crew members and passengers were killed in the accident. The position of the final crash was about 900 yards short of the runway and 200 yards to the right of its extended centre line.
Probable cause:
The cause of the accident was the fracture, due to fatigue, of the 9/16 inch bolt holding the bottom of the No. 2 starboard flap unit.
Final Report:

Crash of a Vickers 701 Viscount in Blackbushe

Date & Time: Jan 20, 1956 at 0850 LT
Type of aircraft:
Operator:
Registration:
G-AMOM
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Blackbushe - Blackbushe
MSN:
26
YOM:
1953
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The aircraft took off from London Airport at 0755LT on a training flight, which was part of a routine base check being carried out by a training captain on a line captain. Having completed the first part of the check the aircraft landed at Blackbushe. At approximately 0850LT a takeoff was commenced from this airport for another exercise. On reaching the takeoff safety speed the training captain simulated a starboard outer engine failure. At this point the aircraft was just leaving the ground and as it did so the starboard inner propeller was seen to be stopping and the aircraft began turning to the right with an increasing amount of bank. It rose to about 30 feet and then descended and hit the ground at a point 250 yards from the runway in a steeply banked, nose-down attitude. It cartwheeled, slid along the ground backwards for 200 yards and came to rest just inside the northwest boundary of the aerodrome. The aircraft sustained major impact damage and fire broke out which almost completely destroyed it. The five occupants escaped with only slight injuries.
Probable cause:
The accident was due to an error by the training captain who operated No. 3 high pressure cock lever instead of No. 4 when simulating a failure of No. 4 engine during take-off. This resulted in the loss of all power from both starboard engines at a critical point of the take-off.
Final Report:

Crash of an Airspeed AS.57 Ambassador 2 in Düsseldorf

Date & Time: Apr 8, 1955
Type of aircraft:
Operator:
Registration:
G-AMAB
Flight Phase:
Survivors:
Yes
Schedule:
Düsseldorf – London
MSN:
5224
YOM:
1951
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
47
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
About six minutes after takeoff from Düsseldorf-Lohausen Airport, while in initial climb, the crew reported engine problems and received the permission to return. At this time, it appears that the left engine went into reverse. After completing a circuit, the pilot continued the approach at low height and in poor weather conditions when high tension wires forced him to gain height. He increased power on the right engine but the aircraft stalled and hit the ground with its left wing that was severely bent and partially sheared off. Upon impact, the left engine was sheared off and the airplane came to rest in a muddy field located few km from the airport. All 53 occupants were evacuated and only the crew was slightly injured. The aircraft was written off.
Probable cause:
It was determined that the accident was due to:
- the propeller of the left-hand engine going into brake position during climb. The technical reason for this occurrence so far has not been found,
- the weather which made the approach rather difficult. In good weather conditions the landing would probably have been successful.

Crash of a Vickers 610 Viking 1B in Paris

Date & Time: Aug 12, 1953
Type of aircraft:
Operator:
Registration:
G-AIVG
Survivors:
Yes
Schedule:
Paris – London
MSN:
220
YOM:
1946
Country:
Region:
Crew on board:
4
Crew fatalities:
Pax on board:
30
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
During the takeoff roll at Paris-Le Bourget Airport, a tire burst on one of the main gear. As the decision speed was reached, the crew continued the takeoff procedure and started the rotation. During initial climb, the captain encountered vibrations and informed ATC about the situation. He decided to return and completed a belly landing. On touchdown, the aircraft slid for dozen yards, veered off runway to the right and came to rest in a grassy area. All 34 occupants were evacuated safely while the aircraft was damaged beyond repair.
Probable cause:
It was determined that a tire burst on one of the main landing gear during the takeoff procedure.

Crash of a Vickers 610 Viking 1B in Belfast: 27 killed

Date & Time: Jan 5, 1953 at 2139 LT
Type of aircraft:
Operator:
Registration:
G-AJDL
Survivors:
Yes
Schedule:
Northolt – Belfast
MSN:
262
YOM:
1949
Region:
Crew on board:
4
Crew fatalities:
Pax on board:
31
Pax fatalities:
Other fatalities:
Total fatalities:
27
Captain / Total flying hours:
5100
Circumstances:
The crew started the approach to Belfast-Nutt's Corner by night and in marginal weather conditions. On final, the aircraft christened 'Lord Saint Vincent' was too low and hit the approach light number six (the top of which is 113 feet below the glide path) and appeared to level out. It touched down some 250 feet further on, ran along the ground for about 82 feet, rose again, struck the SBA van, came down again and struck the ILS building before breaking up about 200 yards short of runway 28 threshold. Eight occupants were injured while 27 others were killed, among them three crew members. The aircraft was destroyed.
Probable cause:
The Inquiry found no indication of mechanical failure. The documentation of the aircraft was in order, the crew were properly qualified, and control procedures were correctly carried out. The Inquiry found that on the evidence available there existed such conditions as could properly be described as deceptive to the pilot and the conclusion was that the primary cause of the accident was an error of judgment on the part of the Captain.
Final Report: