British Overseas Airways Corporation - BOAC

Following an uneventful flight from Jakarta, the crew started the descent to Singapore-Kallang in good weather conditions. On final approach to runway 06, the four engine aircraft christened 'Belfast' was too low and hit a sea wall, bounced and landed 80 yards past the runway threshold. On touchdown, the right main gear collapsed, the airplane veered off runway to the right, lost its right wing and came to rest in flames upside down. Seven crew members were injured while 33 other occupants, including all 31 passengers, were killed.

About twenty minutes after its takeoff from Rome-Ciampino Airport, while cruising at an altitude of 27,000 feet between the islands of Elbe and Montecristo, the airplane suffered a brutal decompression, disappeared from radar screens and crashed into the Tyrrhenian Sea. Some debris were found floating about 16 km south of Elbe Island and the main wreckage sank by a depth of 600 meters. All 35 occupants were killed. About 70% of the debris were recovered and the airplane was rebuilt in UK for investigations. As there were suspicions of technical issues, BOAC, Air France and SAA decided to suspend all Comet flights. After fifty modifications and improvements, the airplane started to fly again two months later. It was eventually discovered that the airplane suffered a structural failure and exploded in flight.

Because taxi lights were too dim to use at night, the crew had to use the landing lights while taxiing. Both lights had to be alternated left and right to avoid a meltdown by using a switch behind the captains seat. In a left hand turn the captain took his left hand off the steering wheel to select another landing light. The steering centered, and then the aircraft right wheel bogies ran off the paved surface. Engine power was applied on the two right engines, causing the bogie struts to be forced up and into the wing structure causing much damage.
Source:
https://aviation-safety.net/database/record.php?id=19530725-0

On its scheduled return flight from Singapore to London the aircraft took off from Calcutta-Dum Dum Airport at 1629LT bound for New Delhi-Palam Airport. Six minutes later, while climbing, the crew encountered poor weather conditions with the presence of a thunder-squall. The airplane went out of control, nosed down and crashed near the village of Jagalgori, about 24 miles from Dum Dum Airport. The aircraft disintegrated on impact and all 43 occupants were killed.

The aircraft was operating a scheduled passenger service from London to Johannesburg. The flight from London Airport to Rome was without incident. During the take-off from Rome on the second stage, the aircraft's normal speed failed to build up and after becoming airborne for a few seconds, the Captain's immediate reaction was that there was a lack of engine thrust. He throttled back the engines at the same time as the aircraft came to rest near the airport boundary, and the aircraft sustained considerable damage and two passengers were slightly injured. For take-off the aircraft was taxied to Runway 16 and lined up on the centre line; all pre-take-off checks were made and the elevator, aileron and rudder trim were set at the neutral position. The Captain's estimation of runway visibility was 5 miles but with no horizon. The flaps were lowered to 15" and the windscreen wipers were both operating. The engines were opened up to full power and the isolation switches were set to "Isolate'. The RPM were checked at 10 250 on all engines; fuel flows, engine temperatures and pressures were reported to be correct. The brakes were released and the aircraft made a normal acceleration. At an IAS of 75-80 knots, the nose wheel was lifted from the runway and a slight tendency to swing to starboard was corrected. At an IAS of 112 knots, the Captain lifted the aircraft from the ground by a positive backward movement of the control column and when he considered that the aircraft had reached a safe height he called for "undercarriage up". At about the same instant the port wing dropped rather violently and the aircraft swung to port; the controls gave normal response and lateral level was regained. At this point the Captain realized that the aircraft's speed was not building up, although he made no reference to the ASI. A pronounced buffeting was felt which he associated with the onset of a stall and in spite of two corrective movements of the control column the buffeting continued. Before the First Officer had time to select undercarriage up, the aircraft came down on its main landing wheels and bounced. It was now plainly evident to the Captain that the aircraft's speed was not increasing and he was convinced that there was a considerable loss of engine thrust. He was also aware that the aircraft was rapidly approaching the end of the runway and a decision to abandon the take-off was made. The undercarriage struck a mound of earth as he was closing the throttles and the aircraft slid for some 270 yards over rough ground. The main undercarriages were wrenched off and considerable damage resulted; a large spillage of fuel occurred but fire did not break out. One passenger suffered slight shock and another sustained a cut finger.

The aircraft took off on a scheduled service from Tripoli to Kano with a crew of eight and ten passengers. The weather forecast indicated fine weather en route and thunderstorms in the Kano area. Due to faulty use of the variation setting control on the Gyrosyn compass and the inability of the crew to determine the aircraft's position properly by the standard methods, the aircraft, with practically no fuel and over the desert, made a wheels-up landing in a wide depression littered with shifting sand-dunes surrounded by rocky escarpments. The port wing was torn off and the remainder of the aircraft slewed left and came to a standstill without breaking up. No fire resulted and all passengers and crew were evacuated without difficulty. Six were slightly injured but the copilot died five days later as a result of exhaustion brought about by strain and heat.

The aircraft was carrying 11 people (five engineers from Short Brothers and six BOAC crew members) who were performing a test flight. Upon landing in the Solent, just prior to touchdown, the seaplane was caught by strong winds, hit the water surface and sank off Netley, southeast of Southampton, Hampshire. All 11 occupants were quickly rescued while the aircraft was lost.

Crashed on landing for unknown reason. There were no casualties.

During the takeoff run, the aircraft was caught by a strong crosswind gust and slewed across the runway. The captain over-corrected and the aircraft ran off the runway on the opposite side and rolled over on the grass, breaking in two in the process. There were no injuries but all the passengers were suspended upside down in their seats by their seatbelts. The only reason they all got out was that, mercifully, the York didn’t catch fire despite being full of fuel for the sector it was starting.
Thanks to Andy Frish for his testimony and pictures.

An undercarriage failed upon landing at RAF Heathfield. The aircraft slid for several yards before coming to rest. There were no injuries but the aircraft was damaged beyond repair.