Editing ETOPS (section)

=== ETOPS 180 ===
[[File:Air Canada Boeing 767-300ER with CF6-80 engines.jpg|thumb|Twin-engine [[Boeing 767-300ER]] over Alaska beginning an ETOPS 180 trans-Pacific crossing]]
In 1988, the FAA amended the ETOPS regulation to allow the extension to a 180-minute diversion period, subject to stringent technical and operational qualifications. ETOPS-180 and ETOPS-207 cover about 95% of the Earth.<ref>{{Cite book |url= https://books.google.com/books?id=V_NRDwAAQBAJ&pg=PA203 |title= Initial Airworthiness: Determining the Acceptability of New Airborne Systems |author= Guy Gratton |publisher=[[Springer Science+Business Media]]|date= 17 March 2018 |isbn= 9783319756172 }}</ref> The first such flight was conducted in 1989. This set of regulations was subsequently adopted by the JAA, ICAO, and other regulatory bodies.