Lao Airlines Flight 301

Lao Airlines Flight 301 was a scheduled domestic passenger flight from Vientiane to Pakse, Laos. On 16 October 2013, the ATR 72-600 aircraft operating the flight crashed into the Mekong River near Pakse, killing all 49 people on board. The accident was the first involving an ATR 72-600 and the deadliest ever to occur on Laotian soil.[1][2][3][4][5]

Lao Airlines Flight 301
RDPL-34233, the ATR 72 involved in the accident, landing at Tan Son Nhat International Airport, Vietnam
Accident
DateOctober 16, 2013
SummaryControlled flight into terrain due to pilot error
SiteDone Kho Island, Mekong River, Laos
15°09′06″N 105°43′59″E
Aircraft
Aircraft typeATR 72-600
OperatorLao Airlines
IATA flight No.QV301
ICAO flight No.LAO301
Call signLAO 301
RegistrationRDPL-34233
Flight originWattay International Airport, Vientiane, Laos
DestinationPakse International Airport, Laos
Occupants49
Passengers44
Crew5
Fatalities49
Survivors0

The investigation report concluded that the probable cause of the accident was the flight crew's failure to execute properly the published missed approach procedure following the aborted landing at Pakse airport.[6]

Accident
Crash site
Location of the crash site within Laos

The aircraft was operating a scheduled domestic passenger flight from Wattay International Airport, Vientiane to Pakse International Airport, Pakse, Laos.[7][8] The flight departed from Vientiane at 14:45 local time (07:45 UTC) and crashed into the Mekong River at 15:55 local time (08:55 UTC) while approaching Pakse for the second time, less than 6 kilometres (3.7 mi) from the airport.[9][10][11] The aircraft had already gone around once due to poor weather and was in the downwind leg for another approach when it crashed into a riverbank and was deflected into the nearby river. All five crew and 44 passengers on board were killed.[8]

Marks on the ground indicated that the aircraft landed heavily on the ground before entering the Mekong.[12] The weather was reported to be poor at the time of the accident due to the remnants of Typhoon Nari affecting southern Laos.[8][13]

Recovery of the victims and wreckage was hampered by the fast-flowing, deep waters of the Mekong. To assist with the search, 50 divers from Thailand were brought in.[14] Eighteen of the victims had been recovered as of 18 October.[15] By 23 October 44 of the 49 victims had been recovered. Identification had been confirmed for 27 of them.[16] Some of the victims were found 19 kilometres (12 mi) downstream of the crash site.[12]

Aircraft

The aircraft involved was an ATR 72-600, registration RDPL-34233, serial number 1071, with a total flying time of just over 700 hours since its delivery to Lao Airlines months before, in March 2013.[14][17]

Passengers and crew

The victims were of eleven nationalities. Of the 44 passengers on board, 16 were Laotian,[18] as were four of the five crew. The pilot was a Cambodian national.[12][13] The remaining casualties consisted of seven French nationals, six Australians, five Thais, three South Koreans, three Vietnamese, and one each from China, Taiwan, Malaysia and the United States.[9] At least two children, both from Australia, were among the dead.[19] Early reports that a Canadian was on board were incorrect, since it was later determined that the individual was a Vietnamese national.[20]

Country Passengers Crew Total
Laos16420
France707
Australia606
Thailand505
South Korea303
Vietnam303
Cambodia0 11
China101
Malaysia101
Taiwan101
United States101
Total 44 5 49

The pilots were captain Yong Som (57), who had logged 5,600 flying hours of which 3,200 on the ATR-72, and first officer Soulisack Houvanthong (22), who had logged around 400 hours of flying experience.

Investigation

The Laotian Department of Civil Aviation opened an investigation into the accident.[14] The aircraft's manufacturer ATR and the French Bureau d'Enquêtes et d'Analyses pour la Sécurité de l'Aviation Civile (BEA) assisted them.[8] The BEA sent four investigators to Laos.[21]

The wreckage of the aircraft was lifted from the Mekong on 22 October 2013.[16] Within three weeks from the accident, both the flight data recorder and the cockpit voice recorder were successfully recovered from the Mekong.[8][22]

According to the official investigation report, released in November 2014, the probable cause of the accident was the flight crew's failure to execute properly the published missed approach procedure, which resulted in the aircraft flying into terrain. A sudden change of weather conditions and an improperly executed published instrument approach necessitated the go-around.[23] The recordings show that the flight crew initiated a right turn according to the lateral missed approach trajectory without succeeding in reaching the vertical trajectory. Specifically, the flight crew did not follow the vertical profile of missed approach as the missed approach altitude was set at 600 ft and the aircraft system went into altitude capture mode. When the flight crew realized that the altitude was too low, the PF over-reacted, which led to a high pitch attitude of 33°. It then struck trees. The fuselage collided with the bank and plunged into the river.

gollark: The best thing I can come up with for now is to do the somewhat naive somewhat Factorio-style thing of tracking whether carts are currently using a segment of track (in the other direction), and if so forcing a reroute.
gollark: Unfortunately, it seems like proper signalling in case two things want to use one track is Very Hard™.
gollark: The routing system is now capable of approximately routing *multiple* pigs to arbitrary destinations!
gollark: GTech™ memorial ARR test site.
gollark: (I intend to test rail here)

See also

References
  1. Taylor, Ellis (17 October 2013). "ATR releases more details on Lao Airlines crash". Singapore: Flightglobal. Archived from the original on 17 October 2013.
  2. "Laos air safety profile". Aviation Safety Network. Retrieved 16 October 2013.
  3. "Lao Aviation". Aviation Safety Network. Retrieved 16 October 2013.
  4. "Lao Airlines". Aviation Safety Network. Retrieved 16 October 2013.
  5. "Lao Aviation incident record". Aviation Safety Network. Retrieved 29 October 2013.
  6. Corben, Ron (29 November 2014). "Pilot error 'probable cause' for Lao crash". Seven News. Australia. Retrieved 29 November 2014.
  7. Drum, Bruce. "Breaking News: A Lao Airlines ATR 72 crashes in the Mekong River, 44 people on board". World Airline News. Retrieved 16 October 2013.
  8. Hradecky, Simon. "Crash: Lao AT72 at Pakse on Oct 16th 2013, went into Mekong River on approach". The Aviation Herald. Retrieved 16 October 2013.
  9. "Bad weather being blamed for Lao Airlines crash which killed 49 passengers and crew". Reuters. 17 October 2013. Retrieved 17 October 2013.
  10. "Lao plane crashes into Mekong River, 39 people killed". Voice of Russia. Retrieved 16 October 2013.
  11. Toh, Mavis. "Lao Airlines working to identify cause of ATR 72 crash". Singapore: Flightglobal. Archived from the original on 18 October 2013.
  12. Harmer, Jerry (17 October 2013). "Bodies recovered in Mekong after Laos plane crash". The Aiken Standard. Retrieved 18 October 2013.
  13. "Dozens reported killed in Laos plane crash". CNN. 16 October 2013. Retrieved 16 October 2013.
  14. Pongkhao, Somsack. "Recovery effort underway after Lao Airlines plane crash". Vientiane Times. Retrieved 18 October 2013.
  15. "Govt demands prompt rescue operation after Pakxe plane crash". Vientiane Times. Archived from the original on 20 October 2013. Retrieved 19 October 2013.
  16. "26 bodies identified, Lao aircraft lifted from Mekong River". MCOT. 23 October 2013. Archived from the original on 29 October 2013. Retrieved 24 October 2013.
  17. "Lao Airlines ATR 42/72 – MSN 1071 – RDPL-34233". airfleets.net. Retrieved 16 October 2013.
  18. Doksone, Thanyarat. "49 feared dead in plane crash in Laos". Associated Press. Retrieved 16 October 2013.
  19. "Six Aussies dead as Lao Airlines plane carrying 49 people crashes into Mekong River". News.com.au. Retrieved 17 October 2013.
  20. "No Canadians on crashed plane in Laos". Citynews. Retrieved 18 October 2013.
  21. "Flight QV 301 on 16 October 2013 – ATR 72–600". Bureau d'Enquêtes et d'Analyses pour la Sécurité de l'Aviation Civile. Archived from the original on 21 October 2013. Retrieved 17 October 2013.() – French version(Archive)
  22. "Announcement#11". Lao Airlines. Archived from the original on 1 November 2013. Retrieved 31 October 2013.
  23. "Summary of Final Report on ATR72-600 Aircraft QV 301 Accident Investigation" (PDF). Archived from the original (PDF) on 10 June 2015. Retrieved 15 December 2018.
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