14 fatalities

2003-07-19: Swearingen SA226 Metro II (ZS-OYI) — Ryan Blake Air Charter — Mt Kenya, Kenya

Mt Kenya, KenyaFlight

On July 19, 2003, a Swearingen SA226 Metro II (registration ZS-OYI) operated by Ryan Blake Air Charter was involved in an aviation accident near Mt Kenya, Kenya in flight. 14 people were killed. Investigators recorded the probable cause as: Controlled flight into terrain after the crew failed to maintain horizontal and vertical situational awareness of the aircraft’s proximity to the surrounding terrain. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 1 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 1781200947Data APIEditorial standards

A twin-engine charter aircraft carrying 12 U.S. passengers and two pilots struck Mount Kenya's Point Lenana while cruising in clouds, killing all aboard. Investigators cited controlled flight into terrain due to loss of situational awareness.

Accident Overview

A twin-engine aircraft departed Nairobi-Wilson Airport at 1558 local time on a charter flight to Samburu. On board were 12 passengers, all U.S. citizens, and two pilots. En route, the crew decided to conduct a tour over Mount Kenya before proceeding to Samburu. While cruising at an altitude of 16,500 feet in clouds, the aircraft struck the eastern slope of Point Lenana, the third highest peak of Mount Kenya. Wreckage was located 450 feet below the summit. All 14 occupants were killed.

Investigation Findings

The official investigation determined that the accident was a controlled flight into terrain. The probable cause was the crew's failure to maintain horizontal and vertical situational awareness of the aircraft's proximity to the surrounding terrain. Several contributing factors were identified.

Contributing Factors

Investigators cited unfamiliarity with the airspace and the route, particularly the existence of high ground on the planned flight path. Inadequate flight planning by the pilots and distraction when they were instructed to contact Nanyuki were noted. Additionally, poor pilot briefing by the Wilson ATC briefing office, poor communication between air traffic control units, and the failure of the radar controller to advise the pilot of termination of radar service were factors. The lack of a radar system minimum safe altitude warning for the radar controller and poor civil-military coordination during transit through military airspace also contributed.