De Havilland DHC-2
Ketchikan, AK — May 13, 2019
Event Information
| Date | May 13, 2019 |
| Event Type | ACC |
| NTSB Number | CEN19MA141 |
| Event ID | 20190514X70427 |
| Location | Ketchikan, AK |
| Country | USA |
| Coordinates | 55.42556, -131.50500 |
| Highest Injury | FATL |
Aircraft
| Make | De Havilland |
| Model | DHC-2 |
| Category | AIR |
| FAR Part | 135 |
| Aircraft Damage | DEST |
Conditions
| Light Condition | DAYL |
| Weather | VMC |
Injuries
| Fatal | 6 |
| Serious | 9 |
| Minor | 1 |
| None | 0 |
| Total Injured | 16 |
Event Location
Probable Cause
The inherent limitations of the see-and-avoid concept, which prevented the two pilots from seeing the other airplane before the collision, and the absence of visual and aural alerts from both airplanes’ traffic display systems, while operating in a geographic area with a high concentration of air tour activity. Contributing to the accident were (1) the Federal Aviation Administration’s provision of new transceivers that lacked alerting capability to Capstone Program operators without adequately mitigating the increased risk associated with the consequent loss of the previously available alerting capability and (2) the absence of a requirement for airborne traffic advisory systems with aural alerting among operators who carry passengers for hire.
About This NTSB Record
This aviation event was investigated by the National Transportation Safety Board (NTSB). NTSB investigates all U.S. civil aviation accidents to determine probable cause and issue safety recommendations to prevent future accidents.