Singapore Airlines Ltd on Wednesday posted its second-consecutive annual loss, which widened to a record S$4.27 billion ($3.20 billion), and said it would issue S$6.2 billion ($4.66 billion) of convertible bonds to help weather the coronavirus crisis. The loss for the 12 months ended March 31 was worse than the average S$3.27 billion ($2.46 billion) forecast by eight analysts, according to Refinitiv, and included S$2 billion ($1.5 billion) of impairments largely on the 45 older planes surplus to requirements. It was also far bigger than the S$212 million ($159 million) annual loss in the prior financial year, its first-ever dip into the red, when only one quarter was affected by the pandemic. Annual revenue fell 76.1 percent to S$3.82 billion ($2.87 billion) in the financial year ended March 31, with strong cargo revenues not enough to offset an almost 98 percent fall in passenger numbers. The airline said it expected passenger …