Narrative:
The aircraft had descended from 9000 feet to 5000 feet when the pilot spotted a mountain in front of him. Full power was applied and a steep climb was initiated. The aircraft stalled, struck trees and crashed.
| Status: | |
| Date: | Tuesday 29 March 1977 |
| Type: |  de Havilland Canada DHC-6 Twin Otter 300 |
| Operator: | Merpati Nusantara Airlines |
| Registration: | PK-NUP |
| MSN: | 486 |
| First flight: | 1976-09-28 (6 months) |
| Engines: | 2 Pratt & Whitney Canada PT6A-27 |
| Crew: | Fatalities: 2 / Occupants: 3 |
| Passengers: | Fatalities: 11 / Occupants: 20 |
| Total: | Fatalities: 13 / Occupants: 23 |
| Aircraft damage: | Damaged beyond repair |
| Location: | Bainaha Valley ( Indonesia)
|
| Phase: | En route (ENR) |
| Nature: | Domestic Scheduled Passenger |
| Departure airport: | Palu-Mutiara Airport (PLW/WAML), Indonesia |
| Tolitoli Airport (TLI/WAMI), Indonesia |
The aircraft had descended from 9000 feet to 5000 feet when the pilot spotted a mountain in front of him. Full power was applied and a steep climb was initiated. The aircraft stalled, struck trees and crashed.
Classification:
Loss of control
Sources:
» Flight International 23 April 1977 (1092)Photos
Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Palu-Mutiara Airport to Tolitoli Airport as the crow flies is 236 km (147 miles).
Accident location: Global; accuracy within tens or hundreds of kilometers.
Distance from Palu-Mutiara Airport to Tolitoli Airport as the crow flies is 236 km (147 miles).
Accident location: Global; accuracy within tens or hundreds of kilometers.
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
languages: 
Indonesia
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DHC-6 Twin Otter
- 930+ built
- 42nd loss
- 28th fatal accident
- 2nd worst accident (at the time)
- 47th worst accident (currently)
Indonesia- 21st worst accident (at the time)
- 59th worst accident (currently)
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