Those holes should be known and documented and drilled long before the skin gets placed on the craft.

“The person responsible for the act of negligence has been identified,” the source told the news agency.”

That certainly sounds like 20 years in the gulag.

What did he try to seal it with? Beaumont Egg ?

1. “Nor could they cater for the deceit of some unscrupulous foundries, whose employees would disguise poor castings with lead or Beaumont’s Egg; a mixture of beeswax, fiddler’s rosin, finest iron borings and lamp black.”

2. “After the Tay Bridge disaster in Scotland in 1879, the court of enquiry found that the failure of the bridge had been due in part to lack of bracing. However, it also came to light that blow holes in the cast iron pillars had been filled with a substance known as Beaumont Egg which if I remember correctly was some sort of witches brew of iron filings, beeswax, varnish etc.

” Old-time manufacturers were not so concerned about the quality of the castings they used – and had no qualms about applying a filler composed of lamp black, fiddler’s rosin and iron filings or “borings” to cover up faults in the metal (an alternative was a mixture of sulphur, cast iron siftings and sal-ammoniac). The first mix, almost universally used, was known in the foundry trade as ‘Beaumont’s Egg’ , possibly from a corruption of “beamontage”, a filler used in the furniture trade. To hide minor faults in a casting Beaumont’s Egg was run into blow holes and porous areas by melting it with a hot iron bar followed by rubbing down to make it almost undetectable. As an interesting aside the supplier of the cast-iron columns that collapsed in the Tay-bridge disaster used ‘Beaumont’s Egg’ to cover his poor workmanship.”

It’s good to see that tradition is being upheld in Mother Russia