The Kazan company "Ferri Watt" faced problems while participating in the development of a composite wing for the new MC-21 aircraft. The company created equipment for the production of the part, but now risks losing 156 million rubles.
Ferri Watt claims that the cause of the problems was a faulty oven supplied by the Moscow-based company Aerotech. They state that the equipment for the wing never worked properly.
The wing is produced by two Aerocomposit plants: in Ulyanovsk, the wing is made by vacuum infusion, where the fabric is impregnated with resin and baked, and in Kazan, by autoclave method.
Ferri Watt undertook to create a thermo-infusion center (TIAC) for the serial production of the wing. It developed a control module, an infusion and vacuum system. But due to low revenue, it could not provide a bank guarantee for 90 million rubles and attracted Aerotech as a financial partner. The latter, in turn, found a contractor - LLC "Sparta" - for the manufacture of the oven.
The oven became a stumbling block in this matter. According to Ferri Watt, it worked incorrectly, so it was impossible to integrate it into the TIAC.
According to documents submitted to the court by Aerocomposit, the condition of the module was unsatisfactory: deviations in geometric parameters, gaps and non-perpendicularity in the joints of the section struts. The temperature deviation reached plus or minus 15 degrees, and overheating of the outer walls was observed.
Such an oven is not a mass-produced product, it is made to order: the infusion technology is not used anywhere else in the global aviation industry. The temperature in the oven is not very high, but in each point it should differ by no more than half a degree, and this is the biggest difficulty.
At the same time, Aerotech refused to check the oven, and Aerocomposit later accepted the complex with flaws, fining the Muscovites 48 million rubles. However, the wing itself was never certified.
As a result, Ferri Watt lost 16.5 million rubles in revenue and filed a lawsuit demanding compensation. The court rejected it, and Aerotech is now demanding 156 million from the Kazan company for the disruption of deadlines. Ferri Watt considers this unfair: they could not finish the work due to someone else's mistake and will challenge the claim.
Earlier www1.ru reported that Russian airlines withdrew 58 aircraft from operation due to the impossibility of repair.
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