Originally Posted by Maroof Hussain Chishty

Bhai is ka Urdu mein ye matlab hoga

kisi bhi hawai jahaz k liye muta'alliqa zimma dar mehkama ki tarf se certificate ya ijazat nama keh aaya wo jahaz hawa or us k sakht pressure ya dabao mein urnay k qabil hay ya nahi. ye ijazat naama amooman jahaz k urnay se pehlay, muta'alliqa authority ki taraf se muqarrar karda airworthiness officer( engineer) k jahaz ko mukammal tor per check karnay k baad he jari kiya jata hay or jab tak ye ijazat naama ya certificate na mil jaey, koi jahaz uran bharnay ka soch bhi nahi sakta