Concord crash walin passe hadana eka nawaththuwa neda?
Yes, you are correct, that was one of the reasons to halt production.
In April 2003, Air France and British Airways simultaneously announced they would retire Concorde .
They cited low passenger numbers following the 2000 crash, the slump in air travel following the September 11 attacks, and rising maintenance costs: Airbus, the company that acquired Aerospatiale in 2000, had made a decision to no longer supply replacement parts for the aircraft.
Although Concorde was technologically advanced when introduced in the 70s, 30 years later, its analog cockpit was outdated. There had been little commercial pressure to upgrade the Concorde due to a lack of competing aircraft, unlike other airliners of the same era such as the Boeing 747.
It has been suggested that Concorde was not withdrawn for the reasons usually given but that it became apparent during the grounding of Concorde that the airlines could make more profit carrying first-class passengers subsonically.
Other reasons why the attempted revival of Concorde never happened relate to the fact that the narrow fuselage did not allow for "luxury" features of subsonic air travel such as moving space, reclining seats and overall comfort.