Accident Description:
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𝗕𝗿𝗶𝘁𝗶𝘀𝗵 𝗘𝘂𝗿𝗼𝗽𝗲𝗮𝗻 𝗔𝗶𝗿𝘄𝗮𝘆𝘀 𝗙𝗹𝗶𝗴𝗵𝘁 𝟱𝟰𝟴 was a scheduled international passenger flight from London to Brussels, operated by a Hawker Siddeley HS-121 Trident (Reg. G-ARPI) on 𝗝𝘂𝗻𝗲 𝟭𝟴, 𝟭𝟵𝟳𝟮.
At 16:06:53 the crew reported ready for takeoff. Takeoff clearance was given and at 16:08:30 the brakes were released. The takeoff was normal and at 42 seconds the plane rotated, leaving the runway 2 seconds later at 145 knots IAS. At 83 seconds the captain reported 'Climbing as cleared'. He was then instructed to change frequency and contact London ARTCC. At 93 seconds the noise-abatement procedure was initiated which involved reducing engine power. At 100 seconds the captain called 'Passing 1500' and at 103 seconds the plane was cleared to climb to FL60. This message was acknowledged by the captain at 108 seconds with the terse call 'up to 60'.
At second 114 the droop lever was selected up putting the plane into the area of the stall as the droop started to move. At second 116 the stick-pusher stall recovery device operated. At second 128 the stall recovery system was manually inhibited by pulling the lever. The plane then entered a deep stall from which at that height no recovery was possible. Impact was at second 150 in a field next to the A30 motorway. The plane was totally destroyed and all 118 people aboard were killed.
𝗣𝗿𝗼𝗯𝗮𝗯𝗹𝗲 𝗖𝗮𝘂𝘀𝗲:
Immediate causes were:
1) Failure by PIC to achieve and maintain adequate speed after noise-abatement procedures; 2) Droop-retraction 60kts below minimum speed.; 3) Failure to monitor speed error and to observe droop lever movement.; 3) Failure to diagnose reason for stick-pusher operation and warnings; 4) Operation of stall recovery override lever.
A factors was a.o. the abnormal heart condition of the captain.
