Tu154m VS Goose

Accidents and disasters caused by rare birds. On average, it accounts for about 1st accident with fatalities on one billion flight hours (wiki).
I have long wanted to tell you about this incident, but all as the hands did not reach.
Will be 23 photos.





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30.09.2008 of the flight BRU 8478 from a / c to Antalya (Turkey) - "National a / p Minsk" on the Tu-154 EW-85706, after taking off from a / c Antalya, set at an altitude of 300 meters at a speed of 428 km / h (according to the MSRP - magnetic recording system flight mode) the crew felt a blow to the starboard forward fuselage. Aircraft system parameters have not changed. The crew continued the flight and made a safe landing in the "National Airport Minsk".



... 003

On poslepolёtnom inspection revealed structural damage to the aircraft on the right side of the fuselage from a collision with a large bird.



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Altitude System (KSKV) aircraft fully compensated for leakage of air from the pressurized cabin so that passengers do not feel anything during the entire flight.



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Under the radome (not airtight fuselage) discovered the head and right webbed foot goose. The rest of the bird slipped on trim flew between the trailing edge and center-right nacelle power plant - there are corresponding marks on the skin of the aircraft.



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The bird apparently at the last moment tried to avoid hitting and putting forward bent legs, but when hitting the casing, into the breach came the head and right paw. Upon further movement of the bird's body along the side paneling partially straightened and sharp edge, at the break cut off his head and leg.



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During the climb after take-off, at V = 428 km / h, H = 300 m., Weight goose ~ 7 kg (as the black box and a passport goose were found, the weight, the age and name have identified the remains) the impact force was 23400kg (by the magazine "Foreign air transportation" number 1 for the 1968 edition of the State Research Institute of Aviation ONTEI article "Problems of aircraft collisions with birds," Tab.1, page 2)

For example: A bird weighing only 450 grams at aircraft speed V = 320 km / h the impact force 2394 kg.



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Who cares, that the damage:
 - In front of the fuselage on the starboard side there is a longitudinal dent outside material size plating 890h690h50 mm between trowels. Number 3 ... 5 and stringers number 17 ... 24 with a through transverse rupture material plating 610 mm long, between the pages. Number 17 and 24, along the front of germodnischa trowels. Number 4 (not airtight fuselage);
 - Longitudinal, triangular (the form), digging material sealed fuselage skin between the trowels. Number 4, 5 (with direction from the top of the trowels. № 4 of trowels. № 5) on p. № 21 size 170h100 mm;
 - In the area of ​​cross-gap material cladding, at p. 22 number on the bottom of the spherical power pressure bulkhead number 4 has a break-through 220 mm long with a dent 220h300h45 mm. plating material along the line (pressurized fuselage).



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The tail)))



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Damage germodnischa



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Damage to the front of the rim flange shp.4



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Getting in the zone of deformation of the skin shp.3



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Snatching the fragment casing between shp.4-5 behind trowels-ta 4



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Deformation and fracture germodnischa 220 mm



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Shp.3 at elevated radome (no damage has)

All lesions were removed and the board continued to fly.

I finished, kick)))

Thank you for the material: T.S.I.



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