Noticeable vibration at 200+ hours 912iS Sport

by Paul Hamilton in 912iS Technical Questions 9 years ago

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Re: Noticeable vibration at 200+ hours 912iS Sport

by james porter » 7 years ago

james porter

14 81 73

Mine is not affected.
James Porter

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Re: Noticeable vibration at 200+ hours 912iS Sport

by Jim Flock » 7 years ago

Jim Flock

13 172 189

Apparently ROTAX is working on this but it looks slowly. For now we have to live with this and have the gearbox rebuilt about every 200 hours under warranty....

Any idea where Rotax is on this?

I had a strange vibration during my last flight. I'm hoping it's not the gearbox. (PS - I'm at 320 hrs)

Aviation Real Estate Specialist & iRMT

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Re: Noticeable vibration at 200+ hours 912iS Sport

by Roger Lee » 7 years ago

Roger Lee

128 5.28k 4.98k

There is a solution coming, but I'm not sure when it will be
out.

Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-349-7056 Cell

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Re: Noticeable vibration at 200+ hours 912iS Sport

by Jim Flock » 7 years ago

Jim Flock

13 172 189

I had a strange vibration during my last flight. I'm hoping it's not the gearbox.

What level of urgency should I be giving this?

Aviation Real Estate Specialist & iRMT

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Re: Noticeable vibration at 200+ hours 912iS Sport

by Roger Lee » 7 years ago

Roger Lee

128 5.28k 4.98k

Hi Jim,
I kind of depends on how bad the vibration was and if you have ruled out all the factors on the plane that can cause vibration.
Common causes;
Tire out of balance
elevator loose
prop blades not at the same pitch
prop out of track
loose wheel pants
prop needs dynamic balance
gearbox needs reshimming

Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-349-7056 Cell

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Noticeable vibration at 200+ hours 912iS Sport

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