• India regulator insists on presence at tests of fuel switches in Seattle, email shows
  • Indian officials have described the matter as 'sensitive'
  • Air India said earlier that fuel-switch checks on its 787s found no issues
  • Seattle testing aims to examine switch's locking mechanism, government source says
  • Testing coincides with anniversary of fatal crash involving fuel switches

Indian air safety officials plan to ​travel to Seattle to observe Boeing's testing of a fuel-control switch panel that was removed from an Air India 787 in February after the pilots on a London-Bengaluru flight ‌flagged a possible defect, according to documents seen by Reuters.

The testing, described by Indian officials as "sensitive", renews the spotlight on the switches on Boeing Dreamliners that regulate the flow of jet fuel into a plane's engines as investigators prepare a final report into an Air India 787 crash that killed 260 people in Gujarat last June.