Accident Robinson R44 Raven II ZT-RBD,
ASN logo
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information. If you feel this information is incomplete or incorrect, you can submit corrected information.

Date:Wednesday 7 August 2019
Time:08:42 UTC
Type:Silhouette image of generic R44 model; specific model in this crash may look slightly different    
Robinson R44 Raven II
Owner/operator:Super Game Dealers CC
Registration: ZT-RBD
MSN: 13930
Year of manufacture:2016
Fatalities:Fatalities: 0 / Occupants: 3
Other fatalities:0
Aircraft damage: Substantial
Location:45 km east of the town Otjiwarongo -   Namibia
Phase: En route
Departure airport:Wabi Game Lodge Private Airfield
Destination airport:Wabi Game Lodge Private Airfield
Investigating agency: DAAI
Confidence Rating: Accident investigation report completed and information captured
The helicopter was on a dry lease from an operator in South African to an operator in Namibia and was conducting a game counting operation on a game lodge on the Waterberg mountains when the accident happened.
From Wabi Lodge, the pilot was accompanied by two passengers who were assisting him in game counting operation. According to the pilot, the main rotor RPM started to decay, and the engine RPM started to increase during level flight. The pilot further stated that a stable orange low main rotor RPM warning light illuminated on the instrument panel and the audible warning alarm sounded. Straight and level flight was no longer possible as the rotor RPM have decayed to below 85%. A hard landing followed, and the helicopter bounced once followed by a slight yaw to the right. Nobody was injured in the accident. The helicopter tail rotor assembly including the tail rotor gearbox broke off and the lower section of the vertical stabilizer was compressed.

Probable Cause
Emergency landing due to the decaying of the main rotor RPM.

Accident investigation:
Investigating agency: DAAI
Report number: 
Status: Investigation completed
Duration: 1 year and 2 months
Download report: Final report



Revision history:

09-Feb-2022 08:49 harro Added

Corrections or additions? ... Edit this accident description

The Aviation Safety Network is an exclusive service provided by:
Quick Links:

CONNECT WITH US: FSF on social media FSF Facebook FSF Twitter FSF Youtube FSF LinkedIn FSF Instagram

©2024 Flight Safety Foundation

1920 Ballenger Av, 4th Fl.
Alexandria, Virginia 22314