A study on helicopter main gearbox planetary bearing fault diagnosis - ScienceDirect
EC225 crash near Bergen, Norway April 2016 - Page 9 - PPRuNe Forums
AS332 Super Puma Intermediate Gearbox
Airbus allays Super Puma gearbox fears | Upstream Online
A study on helicopter main gearbox planetary bearing fault diagnosis - ScienceDirect
Norway: Was EC225 Gear Failure Detectable? - Rotor & Wing International
ACCIDENT Aircraft Type and Registration: Eurocopter AS332L2 Super Puma, G-REDL No & Type of Engines: 2 Turbomeca Makila 1A
Planetary bearing defect detection in a commercial helicopter main gearbox with vibration and acoustic emission - Faris Elasha, Matthew Greaves, David Mba, 2018
Aviation Investigation Report A09A0016 - Transportation Safety Board of Canada
Unexpected - Flight Safety Foundation
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