Test

The crew was conducting a post-maintenance test flight. Shortly after takeoff from Travis AFB, while climbing to a height of 100 feet, the aircraft banked left, stalled and crashed in flames. Three crew members were killed while four others were injured. The aircraft was destroyed.
Crew:
1st Lt James Lyman Hayter,
2nd Lt Richard C. Nelson,
2nd Lt Garth L. Tingey,
M/Sgt Russell M. Hobart,
M/Sgt Harold E. Roache, †
M/Sgt Arthur G. Bird, †
S/Sgt Amos H. Kolb. †

The crew was engaged in a test flight on behalf of the Telecommunications Research Establishment (TRE). While taxiing, a fire broke out in a wheel well. The pilot was able to stop the airplane and all five occupants escaped without any injuries. The airplane was considered as damaged beyond repair and later transferred to Farnborough for structural test.

The aircraft took off at approximately 1700LT on a local test flight carrying a crew of 2 and 4 passengers. The purpose of the flight was to test the single-engine performance of the aircraft when loaded to the maximum permissible weight for take-off and to determine the correct power setting and performance. Just before 1705LT witnesses stated that they saw the aircraft turn onto its back with a sudden cessation of engine noise and white or grey vapor was seen to come from both engines as it dived in a very steep nose down attitude to the ground. From statements of witnesses it was deduced that it was probable that the aircraft was below 1,000 feet when it turned onto its back. The aircraft exploded on impact and caught fire. All the occupants were killed and the aircraft was destroyed.

The crew was completing a local test flight at RAF Hucknall on behalf of the Rolls Royce motorist. On short final, the pilot-in-command decided to make a go around when control was lost. A wing hit the ground and the airplane crashed, killing all four crew members.

The crew was engaged in a test flight on behalf of the Empire Test Pilots' School (ETPS) and departed Farnborough for RAF Lyneham. Enroute, a technical failure occurred on the right engine that caught fire. The pilot-in-command reduced his altitude, contacted ATC and elected to make an emergency landing. After passing Chibolton and while descending through the last cloud layer, the starboard wing was on fire. While attempting to land, the airplane hit a tree and crashed in flames. The aircraft was destroyed and all three crew members were killed.
Crew:
W/Cdr K. J. Sewell,
F/Lt D. B. James,
F/Lt J. C. Crouch.

Following a 1,000 hours maintenance check, the twin engine airplane christened 'Tutankhamun' was involved in a 3 minutes test flight with two pilots and two technicians on board. On final approach to runway 32, the crew voluntarily shot down the left engine and feathered its propeller to conduct an asymmetric landing. It is believed the aircraft was unstable as it landed too long, in the last third of the runway. In such conditions, the captain decided to make a go around and increased power on the right engine when the aircraft stalled and crashed in flames. Three crew members were killed while a fourth occupant was seriously injured.

The crew (two technicians and two pilots) were conducting a post maintenance test flight when the twin engine aircraft crashed in unknown circumstances into the Tokyo Bay. The aircraft sank and was lost and all four occupants were killed.

The crew (engineers and technicians) were performing ground test following technical modifications. While taxiing, the airplane went out of control, veered off taxiway and came to rest. Both occupants were uninjured while the aircraft was damaged beyond repair.

The crew was completing a local test flight out from New Delhi-Safdarjung Airport, a mission that was part of the official investigations from the Indian Civil Aviation Authorities following the crash of a C-47 at Nagpur on 12 December 1953. On approach to Safdarjung Airport, the aircraft went out of control and crashed in the district of Jammu Bridge, near the airfield. While nobody on the ground was injured, all three crew members were killed.

The crew (Bristol pilots and engineers and KLM pilots) was performing a test flight out from Bristol-Filton Airport. About seven minutes after takeoff, the engine number three temperature rose. The engine was shut down and later restarted as the temperature cooled. While climbing to an altitude of 10,000 feet, the temperature rose again and the engine exploded. The fire could not be extinguished and as a precaution, it was decided to shot down the engine number four and to return to Filton. On approach, both left engines stopped but were quickly restarted. In such conditions, the captain decided to attempt a belly landing in the Severn estuary, off Littleton-upon-Severn. All 13 occupants escaped with minor injuries while the aircraft was damaged beyond repair.
Source:
http://www.bristol-britannia.com/p/history-of-romeo-x-ray.html