HANOI, June 29 -- A taxiway scrape between two Vietnam Airlines planes at Hanoi's Noi Bai Airport has led to four pilots being suspended and two aircraft grounded, as authorities launch investigations into the incident.

According to Vietnamese media reports, it all happened around 2pm on June 27, when a Boeing 787 preparing for take-off to Ho Chi Minh City accidentally clipped the tail of an Airbus A321 that was waiting on a nearby taxiway to head to Dien Bien.

The Boeing's right wing tip hit the Airbus' vertical stabiliser as it passed through the intersection of taxiways S3 and S, causing damage to both jets - a torn tail fin for the A321 and a scuffed-up wing tip for the 787.

Fortunately, no one was hurt, but more than 380 passenger...