The evidence supporting the pilot-suicide theory is “very circumstantial,’’ the embassy official says, insisting the plane could have been brought down by a mechanical problem. He suggests the U.S. investigators are sitting on important information. For this reason, the airline wants one of its former NTSB experts to examine the wreckage. NTSB officials aren’t backing off the suicide theory, but they’re still looking for a motive. A former EgyptAir pilot seeking asylum in Britain has told them the crash-plane co-pilot used to frequent topless bars, suggesting he might have led a different life on the road than at home. While this isn’t a clear motive, the NTSB wants to reinterview the witness.
