At the Irkutsk Aviation Plant (IAP, part of PJSC Yakovlev), the onboard cable network was tested using an automated complex. The equipment allows you to check all electrical systems of the aircraft for breakdown, open circuit and short circuit.
The IAP noted that this is a necessary step before connecting consumers to the network - blocks, units and engines.
Group 3.6 of the acceptance department of workshop No. 277 conducted testing and analysis of the results obtained independently. Preparation required a lot of effort and time - during the week, specialists installed more than 200 transitional harnesses of the complex.
Before the aircraft finally goes into series production, we must ensure that the error rates during the very first test are close to zero, because until the tests are carried out under voltage, the remaining work is slowed down, and this cannot be allowed in serial production.
Tests, which take from 20 minutes to 15 hours, are carried out using low and high voltage methods. As a result of the check, the operator receives a report indicating all identified inconsistencies.
Earlier at the Irkutsk Aviation Plant, employees presented their developments, which significantly facilitated the production process.
But the main complaint about the MC-21-310 is its weight. Assumptions have appeared on the Web about which particular components it is possible to remove excess load from.