
FAA will accept more risk to aircraft from space debris under new policy
Four days before SpaceX listed on the Nasdaq in the largest-ever initial public offering, the U.S. Federal Aviation Administration quietly changed its safety policy to allow more aircraft to fly through airspace where they are at higher risk of a catastrophic accident due to falling space debris.
The FAA previously allowed no more than a few thousand aircraft per year to transit the outer portions of aircraft hazard areas identified in advance of each launch and re-entry operation — airspace where they face more risk than the agency’s Air Traffic Organization would normally tolerate. By capping this number at 6,412 aircraft per 12-month period, the FAA had maintained 95% confidence that no fatal accident due to falling space debris associated with a launch or re-entry operation would occur in 80 years.
No aircraft were allowed to transit the most hazardous portions of these zones, and that has not changed. But in a June 8 memo, the FAA’s Executive Safety Council removed the rolling limit that previously served as a cornerstone of its acceptable level of risk (ALR) policy, raising questions about whether the odds of a fatal accident will rise as SpaceX and its competitors increase their launch tempo.