SE73-25 elevator trim tab actuator service

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3 weeks 6 days ago #3410 by STEVE ELLS
Replied by STEVE ELLS on topic SE73-25 elevator trim tab actuator service
Hi Lawrence;
Thanks for stepping up and answering this question.
I appreciate it.

Steve

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1 month 1 week ago - 1 month 1 week ago #3388 by David Kagey
Replied by David Kagey on topic SE73-25 elevator trim tab actuator service
Thanks. Aircraft is 49 years old and can’t find that it has ever been serviced. Trying to decide between new and rebuild
Will dig thru the log books in more detail to make sure now that I see this article. Any estimate on hours to replace if done at annual when tail opened up? Try to do one thing like this at each annual. Also working through…slowly…..the Cessna aging aircraft guide. Ugh.
Last edit: 1 month 1 week ago by David Kagey.

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  • LAWRENCE KORONA
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1 month 1 week ago #3387 by LAWRENCE KORONA
Replied by LAWRENCE KORONA on topic SE73-25 elevator trim tab actuator service
Just one

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1 month 1 week ago #3385 by David Kagey
Replied by David Kagey on topic SE73-25 elevator trim tab actuator service
How many actuators does a 172M have? Is it just one, or one on each side?
Thanks

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8 months 3 weeks ago #3131 by STEVE ELLS
Replied by STEVE ELLS on topic SE73-25 elevator trim tab actuator service
H Lawrence,

Lubricating the actuator is shown in the service manual in Chapter 2 of the service manual for your airplane.

Chapter 9 has a very detailed set of instructions on how to remove, disassemble, clean, inspect, (with specifications), re-lube and reassemble.

Cessna Service Letter SE73-25 was issued (in 1973) suggests that the actuator be removed every 1000 hrs, or 3 years to be inspected and re-lubed.

Cessna makes all this service information available for free on its website. However, none of the Cessna service bulletins, letters, etc. is mandatory in this country.

You can get your actuator overhauled by McFarlane Aviation ( www.McFarlaneAviation.com ) for $450, a company called The Aviation Group will overhaul it for $475. A new actuator from McFarlane is improved over the original Cessna actuator. It sells for $1810 + a $150 core charge ($1960 outright)

Steve

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8 months 3 weeks ago #3129 by LAWRENCE KORONA
Replied by LAWRENCE KORONA on topic SE73-25 elevator trim tab actuator service
Thanks for everyone's reply.
So I assume that this is a item that needs to be addressed. Also I assume that ignoring this service can result in trim issues?

I'm astonished that in my 30 years of owning this plane, no mechanic has ever mentioned anything about this service. Have you found that this service is common?

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