Investigation Summary
Flight 206 was a routine domestic service from Hualien to Taipei. The aircraft involved was a NAMC YS-11A-219 with Manufacturer Serial Number (MSN) 2110. As the aircraft approached the Taipei basin, the local weather deteriorated rapidly due to a severe thunderstorm. Despite the low clouds and heavy rain, the crew continued the approach to Songshan Airport. The aircraft struck a low ridge on Yuan Mountain at an elevation of approximately 660 feet (200 meters), roughly half a mile (800 meters) from the runway threshold. The impact occurred in a bamboo grove near the mountain peak, destroying the airframe. Rescue operations were hampered by the terrain and ongoing storm conditions. The accident was one of several fatal incidents for China Airlines during this era, which saw a string of losses including Flight 227 in 1969 and Flight 825 in 1971. These events highlighted early challenges with operational safety, crew resource management, and adherence to weather minimums in the region's challenging terrain.
Final Conclusions
The accident was attributed to pilot error. The flight crew failed to maintain adequate terrain clearance while conducting an approach in weather conditions that were below minimums for the airport. The presence of a severe thunderstorm and thick fog led to a loss of situational awareness, resulting in controlled flight into terrain (CFIT).
Video Analysis
China Airlines Flight 206 Aftermath Footage | 12 August 1970 Taipei, Taiwan — Historical footage showing the wreckage of the China Airlines NAMC YS-11 in a bamboo grove on Yuan Mountain following the 1970 crash.
If playback is blocked, the owner has disabled embedding — use the link above.
Airframe & Maintenance
Systems & Failure Modes
Rolls-Royce Dart Mk.542-10K
The turboprop engines powering the NAMC YS-11; no mechanical failure was cited as a contributing factor.
Visual Approach Procedures
The crew attempted to land in conditions of thick fog and heavy rain that significantly exceeded safe visibility limits for the approach.
Interesting Facts
- 01The aircraft was only one year old at the time of the accident.
- 02The crash site was located approximately 800 meters (0.5 miles) from the runway threshold.
- 03The impact occurred at an elevation of approximately 200 meters (660 feet) above sea level.
- 0417 occupants survived the crash with various injuries.
Safety Actions & Advisories
Weather Minimums Enforcement
Source ↗Following a series of CFIT accidents in the late 1960s and early 1970s, Taiwanese aviation authorities and China Airlines increased emphasis on strict adherence to published weather minimums and the decision-height protocols during instrument approaches.