A Swedish supplier Autoliv's scientists say GM in the late 1990's asked the supplier to match Takata's airbag that saved several dollars per airbag. The problem say the scientists at Autoliv was that the Takata airbag that was made at lower cost used a dangerous volatile compound. Autoliv cited here by Tabuchi of the NYT, says it refused to do this. Years later 100 million of the Takata airbags are installed on cars in the U.S. made by GM and other automakers. The chemical ammonium nitrate used by Takata is still being used to make airbags with modifications to reduce its explosiveness. In this indepth account Tabuchi looks at the evidence against using ammonium nitrate, the warnings that were not heeded from Autoliv, and the work of Italian and other scientists that confirm the explosiveness of the substance when exposed to temperature and moisture changes. Here Tabuchi cites reports from suppliers of the nitrate who were hesitant to supply the substance to Takata because of liability issues. And he points out that there was manipulation of testing quality control for the defective airbags that passed the test, so that in addition to the use of the faulty chemical, the company failed to maintain strict quality control as required by the automakers. The pressure from automakers for cost reduction is given as one of the reasons for the problem, just as the pressure from BP to cut costs led to some of the faulty work done by suppliers at oil wells leading to explosions on a oil rig in the Gulf of Mexico. Before the approval of the faulty chemical for airbags Takata airbag business was in dire straits leading to management looking for ways to develop a viable business, as other propellants had failed to deliver results. It is at that point that Takata approved ammonium nitrate despite evidence of its explosiveness that led to TRW, another airbag maker, to reject it. ...
Original article 9 minutes, gist 1 minutes