S4/2012 - Sikorsky S-76C++, G-WIWI, 3 May 2012

From:
Air Accidents Investigation Branch
Published
10 December 2014
Category:
Commercial - rotorcraft
Report type:
Special bulletin
Date of occurrence:
3 May 2012
Aircraft type:
Sikorsky S-76C++
Location:
Private landing site, East Sussex
Registration:
G-WIWI

Special Bulletin: S4/2012 - Sikorsky S-76C++, G-WIWI

Summary:

Following an event in which high torque was used, flight data was analysed on behalf of the operator using incorrect conversion information relevant to earlier variants of the helicopter. The operator was therefore unaware that total torque had exceeded a level at which maintenance action was required. The investigation revealed the existence of the correct information and one Safety Recommendation is made to publish it in a single document.

Download report:

S4-2012 G-WIWI.pdf (385.55 kb)

Published 10 December 2014