Conversation so far:
What kind of jobs did Sullenberger have in aviation?
founder and CEO of Safety Reliability Methods, Inc.
When did Sullenberger found Safety Reliability Methods?
2007.
What kind of company was Safety Reliability Methods?
firm providing strategic and tactical guidance to enhance organizational safety, performance, and reliability.
Does Sullenberger still work for the company?
CANNOTANSWER.
Did Sullenberger have any other jobs in his civil aviation career?
He served as an instructor, Air Line Pilots Association Local Air Safety Chairman, accident investigator, and national technical committee member.
When did Sullenberger serve as an instructor?
CANNOTANSWER.
Are there any other interesting aspects about this article?
He was a featured speaker for two panels, one on aviation and one on patient safety in medicine, at the High Reliability Organizations.

Question: When was he a featured speaker?
Self-contained rewrite: When was Sullenberger a featured speaker?