On Thursday , December 30, 1948, in the Minsk region of the Minsk region, shortly after departure , the Aeroflot TC-62 crashed , resulting in 3 deaths.
| Accident TS-62 near Minsk | |
|---|---|
 S-47 (prototype TS-62 ) | |
| General information | |
| date of | December 30, 1948 |
| Time | 09:20 |
| Cause | Not installed |
| A place |  Petrovschina village , Minsk region, Minsk region , near Minsk airport ( BSSR , USSR ) |
| Aircraft | |
| Model | TS-62 |
| Airline |  Aeroflot (MUTA GVF, 15 atoms) |
| Departure point |  Minsk |
| Destination | Vnukovo ( Moscow , RSFSR ) |
| Board number | USSR-L1017 |
| Date of issue | April 25, 1945 |
| Crew | four |
| Dead | 3 |
| Survivors | one |
Prior Circumstances
On December 4, the TS-62 aboard the USSR-L1017 landed at the Minsk airport , when, during the run along the runway on the right landing gear, the rear strut assembly was broken. As a result, the right landing gear formed and the plane fell on the right wing. As a result of this serious incident , the TC-62 on the right wing bent the propeller blades and the deformation of the flaps, aileron , end fairing of the right console, hood and basket of the right oil cooler [1] .
The repair team arrived from the ARB-400 and performed aircraft repair on December 15-21. At the same time, in order to reduce the volume of work, the team decided not to replace the bent end fairing with a new one, but to repair the old one. For a more detailed repair, it was required to overtake the TS-62 on the ARB-400 to Vnukovo Airport ( Moscow ) [1] .
Holocaust
To distill the aircraft, a crew of 15 atoms arrived, consisting of commander Timofey Gavrilov , co-pilot Fyodor Mazurov, flight mechanic Nikolai Kryuchkov and flight engineer Peter Malinin. Due to various reasons, the departure was delayed until December 30 , while the airplane was not flown [1] .
On the 30th, at 08:25, the director of the Minsk Airport received a storm warning, according to which, from 09:30 to 13:30, cloudiness was expected to drop below 100 meters, as well as fog formation when visibility was less than 1000 meters. The weather minimum for this airport was as follows: cloud height 100 meters with horizontal visibility 1000 meters. However, the crews of the planes departing at 08:30 and 08:45 reported that cloud cover had already dropped to 75 meters. After that, the crew commander of the distilled TS-62 was given a weather bulletin in which the cloud height was 75 meters and the horizontal visibility was 2 kilometers. The weather minimum was lower than necessary, but at 09:15 the board of the USSR-L1017 flew out of the airport at a magnetic course of 300 °. The crew reported a take-off, after which they no longer contacted [1] .
The plane made its first U-turn and went into cloud cover. However, after a minute and a half, according to eyewitnesses, he again left the clouds in the vicinity of the village of Petrovshchina , flying with a right bank. The TS-62 descended and hooked the ground for 50 meters, then it rose, flew 25 meters, descended and again began to hook the earth for 30 meters, then flew up again, but after 20 meters it crashed into the ground with its nose, right engine and wing. The wing tore off, but the TS-62 flew up, turned 180 ° in flight and 100 meters from the previous strike again crashed into the ground and caught fire. TS-62 crashed 2 kilometers northwest (azimuth 300 °) from the airport of departure. The commander, the co-pilot and the flight engineer were killed, the airborne operator received bruises, but survived [1] .
Major of the Air Force Timothy Kuzmich Gavrilov (crew commander) died in the crash.
Investigation
Initially, the commission of inquiry concluded that the cause of the disaster was a change in the repair of work, as a result of which the old end fairing was installed, while the repair team could not check its internal fairing set, which could be broken. Thus, according to the commission, the end fairing was deformed, as a result of which the aileron on the right wing jammed [1] .
However, soon the State Research Institute of Civil Air Fleet conducted tests that discovered the fallacy of the original version. The repair team put 8 patches on the damaged places, and the fairing tests showed that the repair made it possible to safely overtake the aircraft at the base in Vnukovo. According to the tests, it was revealed that the aileron was jammed due to the bend of the wing end fairing by 10 °, while the end fairing itself collapsed even earlier due to a load of 1200 kilograms - 30% higher than the calculated one. Based on the tests, GosNII GVF concluded [1] :
The cause of the disaster could not be the clamping of the aileron during the deformation of the end fairing. Clamping occurs only with the complete destruction of the fairing. In this case, the aileron is removed from the clamping force of 30-40 kg at the helm. Destruction of the end fairing in the air can only be in case of failure by 70-80% of its power set. The examined power set of the terminal fairing of the L-1017 aircraft does not give reason to believe that it was launched with such a weakening.
- [1]
The real cause of the disaster has not been established.
Notes
- ↑ 1 2 3 4 5 6 7 8 The catastrophe of TS-62 of the Moscow command of the Civil Air Fleet near the airport Minsk . AirDisaster.ru. Date of treatment April 13, 2013. Archived April 21, 2013.