By David Shepardson, Abhijith Ganapavaram and Allison Lampert WASHINGTON/NEW DELHI/MONTREAL (Reuters) -The U.S. Federal Aviation Administration and Boeing have privately issued notifications that the fuel switch locks on Boeing planes are safe,

The FAA’s Continued Airworthiness Notification, dated July 11, was issued days after India’s Aircraft Accident Investigation Bureau (AAIB) released its initial findings into last month’s fatal Air India 787-8 crash, which killed all 260 people on board. The report questioned how the aircraft’s engine fuel cutoff switches flipped during takeoff.

A focus on the Boeing 787’s fuel switches in a preliminary assessment raised questions about the pilots’ actions, but much is still unknown about Flight 171.