According to '' Aviation Safety Network '' , Vietnam Airlines experienced six accidents/incidents since 1951 , with three of them leading to fatalities . All of the deadly accidents occurred on final approach , and all involved Soviet-built aircraft . The deadliest one took place on 19 September 1988 , when a Tupolev Tu-134A crashed on approach to Don Mueang International Airport , killing 76 of 90 occupants aboard . The second-deadliest accident occurred on 3 September 1997 , when a Tupolev Tu-134B-3 crashed after hitting trees on approach to Phnom Penh International Airport ; the death toll rose to 65 . The third-deadliest accident occurred on 14 November 1992 , when a Yakovlev Yak-40 crashed on approach to Nha Trang Airport , killing 30 of 31 occupants aboard . The airline has also experienced a hijacking episode in 1992 , without any recorded fatality
crashed
Vietnam Airlines Flight 474
Vietnam Airlines