Our airport (69N) Slatington was hit by a tornado last week. My three sliding hanger doors were sucked out, then blew in. The center door hit the spinner of my RANS S 7 and pushed the aircraft back three ft.  The spinner and backing plate did not brake, only scratched. The Louan plywood interior panel on the door was broken by the impact.  
I’m not sure how to proceed. The insurance company is asking for estimates. 
The gear box case looks okay. 

Any ideas?

8766_1_D556E7EB-8A92-4D73-AA3A-52E811F76528.jpeg (You do not have access to download this file.)
8766_1_98012637-1298-45BB-8DF6-98254511D155.jpeg (You do not have access to download this file.)
  • Re: Gear Box Impact

    by » one month ago

    If the prop didn't break and the spinner is only scratched plus the engine wasn't running I'd say you're probably just fine. I'd have a different view if the prop was wiped out and the spinner smashed off. Then I'd want the prop shaft and prop flange checked for true.

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

    Thank you said by: Eugene Salvatore, john gunn

  • Re: Gear Box Impact

    by » one month ago

    It looks like you dodged the bullet!
    At a minimum, I would proceed as if you had a prop strike.

    Pull the Prop and inspect to see if the spinner struck the prop.
    While it is off, check the Prop Shaft Flange Runout.  (HMM 72-00-00; 3.9.10)

    If BOTH checks are OK, put it back together.

    Bill Hertzel
    Rotax 912is
    North Ridgeville, OH, USA
    Clicking the "Thank You" is Always Appreciated.

    Thank you said by: Eugene Salvatore, RotaxOwner Admin

  • Re: Gear Box Impact

    by » one month ago

    Hi All

    I can tell all that in gearbox impacts the engine need not be running to be damaged.  years ago when we had shipping boxes made of cardboard rather than the current plywood, fork lifts could damage a prop flange.  Even if the flange is not bent I found some that bent the 4 retaining bolts inside that retain the ball bearing from movement.  

    My recommendation is to remove the gearbox and send it in for NDT on the propshaft and also check the housing for cracks at the retaining bolt holes in the gearbox nose.  


    Thank you said by: RotaxOwner Admin

You do not have permissions to reply to this topic.