Thanks, very good point
According to Jang, the said plane was grounded by Shaheen and was acquired by Bhoja from South Africa.
I consider the plane caught fire in air, because when plane hit the ground, almost all the passengers were half burned and also plane was divided into three parts in air and was further scattered.
Microbust, thanks again, classic example
but it this was happening that time, it should effect some more objects in ground, no voice or effect was noted at that time, but may be a possibility. Luckily, here no report will be shared with poor Pakistanis like us 