Which of the following airline’s license was canceled due to an air crash in 1949?

Which of the following airline’s license was canceled due to an air crash in 1949?

مندرجہ ذیل میں سے کس ایئر لائن کا لائسنس 1949 میں ہوائی حادثے کی وجہ سے منسوخ ہو گیا تھا؟
Explanation

Pakistan Airways also known as "Pak Air" or "Pak Airways", was an airline from Pakistan with its headquarters in Karachi. The company was founded in 1948