According to spokesperson of NAC Raju Bahadur KC, substance seen by a team of pilots in the cockpit was not smoke but a moisture-mixed air which appeared after it´s condensation into steam. In a normal condition this kind of humidity can be seen in the cockpit where there is a high humidity level.[break]
After smoke was suspected, the aircraft was grounded for one night in Bangkok for a technical inspection.It was found that the capacity of the water separator had decreased and there was an invisible crack through which uncontrolled air had gotten inside.
The aircraft is not unsafe because of that problem and the equipment was replaced after landing it at Tribhuvan International Airport.
The Boeing had recently been brought into operation right after a "C" Check in Israel. The left pack of the aircraft did not show any problem because the moisture of air in Kathmandu is relatively less than in Bangkok.
Related story
Smoke in cockpit sends Philadelphia-bound flight back to NY
-1200x560-1781083488.webp)
_20210331152226.jpeg)
