After a Boeing 737 crashed near Amsterdam more than a decade ago, an expert study that sharply criticized the manufacturer was never published by the Dutch safety authorities, and its key findings were either excluded or played down in their accident report.

On Tuesday, the Dutch Safety Board, which had commissioned the study, reversed course — publishing it a day after The New York Times detailed the findings.

The Times’s review of evidence from the accident, which killed nine people on a Turkish Airlines flight in 2009, showed the study’s conclusions were relevant to investigations into two more recent crashes of Boeing aircraft that killed 346.

[Read The Times’s investigation here.]

The study, by Sidney Dekker, acknowledged that the pilots made serious errors but also found that Boeing bore significant responsibility. It accused the company of trying to deflect attention from its own “design shortcomings” with “hardly credible” statements drawing attention to the pilots’ mistakes.