AAIB investigation to Sikorsky S-92A, G-CHHF
Nose landing gear failed to lower on approach to Scatsta Airport, Shetland, 29 January 2018.
Summary:
During a final approach to land at Scatsta the nose landing gear (NLG) failed to extend despite being recycled and the use of the emergency blowdown system. The crew declared a PAN and the decision was taken for ground crew to lever the NLG down manually. This was successfully carried out and the helicopter landed safely. It was found that the automatic nosewheel self-centring mechanism had not operated, causing the nosewheels to jam the nose leg in its bay. The exact cause of the failure of the NLG to centre the nosewheels could not be determined. The operator has taken three safety actions.
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Published 9 August 2018