Takata Airbag Inflators Spray Shrapnel at Drivers: 26 Million Vehicles Recalled, 27 Dead
What happened
Takata Corporation's airbag inflators, fitted to over 100 million vehicles by 19 manufacturers worldwide, were found to rupture violently under heat and humidity cycling, spraying metal shrapnel at drivers and passengers. At least 27 people were killed and over 400 injured globally. The resulting recall — approximately 67–100 million inflators worldwide, 26 million vehicles in the US alone — is the largest automotive recall in history. Takata filed for bankruptcy in 2017 with $9.85 billion in liabilities.[1]
What went wrong
Takata used ammonium nitrate as the propellant in its inflators — a cheaper alternative to tetrazole-based propellants used by competitors. Ammonium nitrate is highly hygroscopic: it absorbs moisture from the air. In high-humidity environments subjected to thermal cycling, the propellant degrades over time, causing the inflator canister to rupture at pressures far beyond design limits and fragment the metal housing. A 2004 Takata internal test reportedly showed ruptured inflators; that data was allegedly concealed from regulators. Takata initially limited the recall to high-humidity US states; only when deaths continued did the scope expand to the global recall.[1]
Lesson learned
A cost reduction in a safety-critical component — ammonium nitrate over tetrazole — can carry a decade-long fuse. The consequences were visible in internal test data years before deaths occurred. Concealing safety test results from regulators transforms a product defect into a criminal liability. The Takata bankruptcy is the outcome when the liability from a concealed defect outgrows the company that concealed it.
Sources
- [1] NHTSA / Takata recall records Takata Airbag Inflators Spray Shrapnel at Drivers: 26 Million Vehicles Recalled, 27 Dead