Transportation Safety Board of Canada
Symbol of the Government of Canada

 A09A0016 - Sikorsky S92-A

Wreckage as seen by the remotely operated vehicle (ROV) during recovery

Photo 1 - Wreckage as seen by the remotely operated vehicle
(ROV) during recovery



Recovery basket with the main portion of the helicopter wreckage being lifted from the water by the Atlantic Osprey’s crane

Photo 2 - Recovery basket with the main portion of the helicopter
wreckage being lifted from the water by the Atlantic Osprey’s
crane




Recovery basket and wreckage secured on the aft deck of the Atlantic Osprey

Photo 3 - Recovery basket and wreckage secured on the aft deck
of the Atlantic Osprey




Right side of the ‘upper deck’ and fuselage structure

Photo 4 - Right side of the ‘upper deck’ and fuselage structure



Main gear box after removal from wreckage

Photo 5 - Main gear box after removal from wreckage




Oil filter housing showing 1 of 3 mounting studs broken and missing

Photo 6 - Oil filter housing showing 1 of 3
mounting studs broken and missing




Tail rotor drive gear with damaged teeth

Photo 7 - Tail rotor drive gear with damaged teeth




Tail rotor take off gear on right as compared to a new pinion on the left

Photo 8 - Tail rotor take off gear on right as compared to a new
pinion on the left




Wreckage layout and reconstruction

Photo 9 - Wreckage layout and reconstruction




Preparing wreckage for transport

Photo 10 - Preparing wreckage for transport




View of front end of helicopter

Photo 11 - View of front end of helicopter




Filter bowl assembly being removed

Photo 12 - Filter bowl assembly being removed




Cougar Flight 491 flight data recorder

Photo 13 - Cougar Flight 491 flight data recorder




Damaged tail rotor take-off pinion removed from C-GZCH

Photo 14 - Damaged tail rotor take-off pinion removed from C-GZCH




Damaged spiral bevel gear removed from C-GZCH

Photo 15 - Damaged spiral bevel gear removed from C-GZCH




Filter bowl mounting stud

Photo 16 - Filter bowl mounting stud