1 fatality

Fatal Mountain Strike During Cargo Flight to Mendi (VH-GSA)

Mendi, Papua New GuineaLanding (descent or approach)

On July 8, 1958, a Noorduyn Norseman (registration VH-GSA) operated by Gibbes Sepik Airways was involved in an aviation accident near Mendi, Papua New Guinea during landing or approach. One person was killed. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 5 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-06-12Data APIEditorial standards

A single-engine cargo aircraft carrying cement bags struck a mountain slope and disintegrated while approaching Mendi in deteriorating weather, killing the sole pilot on board.

Incident Overview and Route Details A single-engine aircraft was operating a cargo flight from Minj to Mendi when it encountered deteriorating weather conditions during its approach to the destination. The aircraft was transporting a load of cement bags at the time of the accident. The pilot was the only person on board the aircraft when the incident occurred. The flight path took the aircraft through a valley that was experiencing active thunderstorm activity as it neared Mendi. The aircraft struck the slope of a mountain during this approach and disintegrated upon impact with the terrain. The pilot was killed in the accident. No other individuals were on board the aircraft, and the cargo of cement bags was part of the flight's manifest at the time of the crash.