Extended TBO for Lycoming Installations

How to keep the Cessna 170 flying and airworthy.

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rupertjl
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Joined: Thu Jun 17, 2004 5:29 pm

Extended TBO for Lycoming Installations

Post by rupertjl »

Wanted to let everyone know that Lycoming released SI 1009BA yesterday that extends the TBO to 2200 hours for anyone flying behind the 0-360 (and other engine models). If you're flying more than a 100 hours a month with your plane, it extends the TBO to 2400.

The SI can be found here:
http://www.lycoming.com/content/service ... no-1009-ba
1950 170A: N9191A s/n 19366
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GAHorn
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Re: Extended TBO for Lycoming Installations

Post by GAHorn »

Thanks for bringing this to the forums.
This will be helpful to commercial operators who must comply with TBO recommendations. Of course, it will not improve the reliability/longevity the engines ordinarily suffer.
The TBO recommendation does not affect Pt 91 operators in any practical way.
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons. ;)
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rupertjl
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Re: Extended TBO for Lycoming Installations

Post by rupertjl »

You are correct George, nothing changes for us PT91 folks, but man, the flight schools are loving it!
1950 170A: N9191A s/n 19366
flyboy122
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Re: Extended TBO for Lycoming Installations

Post by flyboy122 »

It also doesn't apply if you use any PMA'd parts.

DEM
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ghostflyer
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Re: Extended TBO for Lycoming Installations

Post by ghostflyer »

It's a cheap grab by Lycoming that you use their parts and not PMA sourced parts . Some PMA parts are of a " Superior" quality and cost less too. [No pun intended ] . So where is listed that you have to over haul a Lycoming engine at a certain number of hours if you used approved PMA parts . It has been assumed that they were overhauled at 2000hrs for that model as laid down in the overhaul manual and other manuals . Overhaul requirements also depend on operator habits , the role the engine has to take and even environmental factors .
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GAHorn
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Re: Extended TBO for Lycoming Installations

Post by GAHorn »

ghostflyer wrote:... So where is listed that you have to over haul a Lycoming engine at a certain number of hours if you used approved PMA parts . ....
Although I haven't read the fine print yet, but most TBO extensions stipulate the use of genuine parts and mx schedules/procedures.
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons. ;)
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