KLM Flight 844

KLM (Royal Dutch Airlines) Flight 844 was an international scheduled passenger flight from Biak-Mokmer Airport, Netherlands New Guinea (now Indonesia) to Manila International Airport, Manila, Philippines on 16 July 1957 when it crashed into Cenderawasih Bay 1.2 kilometres (0.75 mi) from its departure airport.^[1][2] As a result, 58 (9 of which were crew members) out of 68 onboard perished. The flight was the first leg of a service with the ultimate destination of Amsterdam, the Netherlands.^[1]

The aircraft

The Lockheed 1049E Super Constellation was registered PH-LKT and christened Neutron. With a construction number of 4504, the aircraft first flew in 1953 has accumulated 11,867 hours of flight.^[2] After Flight 844, Neutron was written-off.

Flight

After take-off, at 03:32 on 16 July 1957, from Runway 10 at Biak-Mokmer Airport, the captain of KLM Flight 844 requested that the runway lights be kept on and permission to carry out a low pass down the runway, with both requests granted. Following take-off the Super Constellation initiated a 180-degree turn, losing altitude during the turn until it struck the sea at 03:36, breaking apart and sinking in water with depths of 250 metres (820 ft).^[2]

Investigation

Probable cause

Initially the cause was attributed to pilot error and/or technical failure, with no direct evidence for either cause. As the accident happened at night, the pilot might have misjudged his altitude relative to the sea.^[1] Allegations raised in the late 1990s resulted in a request to re-open the case on the grounds that the crew were allegedly under the influence of alcohol, with family of the crew equally desirous of a conclusion to the investigation.^[2]

Accident Board summary

The summary of the report from the Accident Board noted that there was no evidence for either pilot error or technical failure, but also noted that the risks involved in take-off and landing should not be needlessly increased by carrying out low passes on scheduled services with passengers aboard.^[2]

References

1. ^ ^{a b c} Gero, David (2009). Aviation Disasters, The world's major civil airliner crash since 1950. The History Press. p. 326. ISBN 978-0-7524-5039-1. 
2. ^ ^{a b c d e} "Accident Description: Flight 844". aviation-safety.net. 7/10/07. http://aviation-safety.net/database/record.php?id=19570716-0. Retrieved 21 September 2010. 

Bibliography

• Gero, David (2009). Aviation Disasters, The world's major civil airliner crash since 1950. The History Press. p. 326. ISBN 978-0-7524-5039-1. 
• "Accident Description: Flight 844". aviation-safety.net. 7/10/07. http://aviation-safety.net/database/record.php?id=19570716-0. Retrieved 21 September 2010.