Don't overlook the Stinson 108's. Awesome aircraft!! In my opinion, one of the true "sleeper" deals still around!
John
Nrmangino7 wrote:Thanks for the input! i wil add it to my search list...does anyone have any advice/recomendations on how to buy the plane once youve found the "right one". What I mean by how to - is how does a pre-buy inspection work? do you find someone to where the plane is to trust to do the pre-buy, aka if i bought a plane in alaska for example( i am from maine). any incite would be awesome
Happens a lot. Nrmangino7 wrote:Yeah, I am trying to avoid that! I just didn't want to get some mechanic that might be in with the owner to try to cover up a problem issue. I hate to be that way but in this world you never know...

JP256 wrote:Nrmangino7 wrote:Yeah, I am trying to avoid that! I just didn't want to get some mechanic that might be in with the owner to try to cover up a problem issue. I hate to be that way but in this world you never know...
I would consider it unlikely that an FAA-certified mechanic would intentionally risk his license by covering up something that he knew was wrong with the airplane. But the person who's been maintaining the airplane is no more able to recognize their own mistakes than an author is of editing their own copy... It's ALWAYS a good idea to bring in someone who has NOT been working on that plane to do the inspection.
The way I start my purchase process is this: Once I've found a candidate airplane that seems like it fits my criteria, I ask for a copy of the logs to be sent to me for my personal review. Given the fact that scanners can be purchased for less than $50 these days, an owner who isn't willing to make a scanned PDF copy of their logs to share with potential buyers is either hopelessly out of touch with the market today, or is covering something up. No logs available? We're done and move on to another airplane. Don't waste my time or make me waste a mechanic's time because you're unwilling to spend a couple of hours scanning your logs...
By this time, I've already been in touch with the "type club" for the airplane I'm looking at, or at least gotten with several experienced owners and/or mechanics familiar with the type, and asked them for a list of things that might go wrong with the airplane that would be completely impossible to repair. Some airplanes have "special" parts that are irreplaceable. For example, if the spar carry-through on a Grumman Tiger or Cheetah becomes corroded, the entire airplane is junk, because the cost to PMA certify a newly manufactured part is upwards of $200K, and no one is willing to take that plunge. The cost vastly exceeds the worth of the airframe. All the used ones from salvage yards have escalated in price to the point where they cost as much as an engineless airplane!
That "show stopper" list, combined with any "hot spots" I indentify during the logbook review are the first things I have the pre-buy mechanic check on the plane, with instructions that if any of them are spotted on the plane - stop the inspection - we're done... If we get past that point, I ask them to check that ALL of the installed avionics are working, including the autopilot (ground checks, at least). Avionics can be extremely expensive to repair - especially those "no longer supported" GPS systems that often are installed. If they're not working, it's sometimes more expensive to make it right than installing a new working GPS or radio that does work...
Notice that I saved engine stuff for last? That's because almost any competent A&P can tell you pretty quickly if the engine is OK or not. Most of them will do a run-up, check idle speeds and roughness, check that the mixture control and throttle work correctly and operate throughout the required range, check the mags and mag timing, and that it shuts down cleanly. Afterwards, they will check differential compressions on the cylinders. If everything seems OK to that point, I'll ask them to change the oil and filter, cutting the filter open and inspect it for any metal, just as they would any other oil change...
I REALLY like it when the A&P is familiar with doing a borescope analysis of the exaust valves in addition to the compression check and the Lycoming valve wobble check. I like it even better if they can send me color pictures of the exhaust valves taken during the examination... If the valves look like a pizza pie, with relatively even or smoothly graduated coloration (black to red), with the deposits fairly equidistant from the entire circumference, that's "Good." If the coloration makes irregular shapes, or there is ANY "green" color depositing on the valve face, I simply assume that cylinder is bad (or will be shortly) and we need to plan to replace it very soon.
All that comes out good, or I can make pricing accomodations with the seller to allow for me to make the repairs myself and be happy with the plane? We're good to go! Seller unwilling to adjust price for a bad cylinder, inoperative GPS, etc. means I've got to decide if I'm willing to pay more for the airplane than eitehr of us was thinking it was worth... That stuff has to get fixed sooner or later, so it goes into the "deferred maintenance" budget and added to the total cost of the airplane. Still think it's worth the price? Buy it. You know what you're getting into...
And even with all this, there can still be surprizes that bite you in the wallet... An engine with perfect compression and excellent-looking valves can still have cam lobe corrosion and pitting that will require an overhaul. It's why we keep some money in reserve, and buy less airplane than the maximum we can afford, right? Right? RIGHT??? (Preaching to my own choir, here!)
I've been really lucky following the above process, and been very happy with every plane I've purchased. I've walked away from a couple of airplanes that might have been great, because their owners didn't want to go along with my process, but MOST owners have been quite reasonable about my requests. Especially when I'm willing to commit up-front to buying the plane for the agreed-upon price, pending a clean pre-buy (and they understand what that entails). There's always a clear understanding that any "show-stoppers" found in the pre-buy means the deal is off, and anything else that is a "major" expense (which I generally cap at $250 to repair) puts us back into price negotiation phase.
Good luck, and hope you find a great plane that is perfect for your mission!
JP256 wrote:Nrmangino7 wrote:Yeah, I am trying to avoid that! I just didn't want to get some mechanic that might be in with the owner to try to cover up a problem issue. I hate to be that way but in this world you never know...
I would consider it unlikely that an FAA-certified mechanic would intentionally risk his license by covering up something that he knew was wrong with the airplane. But the person who's been maintaining the airplane is no more able to recognize their own mistakes than an author is of editing their own copy... It's ALWAYS a good idea to bring in someone who has NOT been working on that plane to do the inspection.
The way I start my purchase process is this: Once I've found a candidate airplane that seems like it fits my criteria, I ask for a copy of the logs to be sent to me for my personal review. Given the fact that scanners can be purchased for less than $50 these days, an owner who isn't willing to make a scanned PDF copy of their logs to share with potential buyers is either hopelessly out of touch with the market today, or is covering something up. No logs available? We're done and move on to another airplane. Don't waste my time or make me waste a mechanic's time because you're unwilling to spend a couple of hours scanning your logs...
By this time, I've already been in touch with the "type club" for the airplane I'm looking at, or at least gotten with several experienced owners and/or mechanics familiar with the type, and asked them for a list of things that might go wrong with the airplane that would be completely impossible to repair. Some airplanes have "special" parts that are irreplaceable. For example, if the spar carry-through on a Grumman Tiger or Cheetah becomes corroded, the entire airplane is junk, because the cost to PMA certify a newly manufactured part is upwards of $200K, and no one is willing to take that plunge. The cost vastly exceeds the worth of the airframe. All the used ones from salvage yards have escalated in price to the point where they cost as much as an engineless airplane!
That "show stopper" list, combined with any "hot spots" I indentify during the logbook review are the first things I have the pre-buy mechanic check on the plane, with instructions that if any of them are spotted on the plane - stop the inspection - we're done... If we get past that point, I ask them to check that ALL of the installed avionics are working, including the autopilot (ground checks, at least). Avionics can be extremely expensive to repair - especially those "no longer supported" GPS systems that often are installed. If they're not working, it's sometimes more expensive to make it right than installing a new working GPS or radio that does work...
Notice that I saved engine stuff for last? That's because almost any competent A&P can tell you pretty quickly if the engine is OK or not. Most of them will do a run-up, check idle speeds and roughness, check that the mixture control and throttle work correctly and operate throughout the required range, check the mags and mag timing, and that it shuts down cleanly. Afterwards, they will check differential compressions on the cylinders. If everything seems OK to that point, I'll ask them to change the oil and filter, cutting the filter open and inspect it for any metal, just as they would any other oil change...
I REALLY like it when the A&P is familiar with doing a borescope analysis of the exaust valves in addition to the compression check and the Lycoming valve wobble check. I like it even better if they can send me color pictures of the exhaust valves taken during the examination... If the valves look like a pizza pie, with relatively even or smoothly graduated coloration (black to red), with the deposits fairly equidistant from the entire circumference, that's "Good." If the coloration makes irregular shapes, or there is ANY "green" color depositing on the valve face, I simply assume that cylinder is bad (or will be shortly) and we need to plan to replace it very soon.
All that comes out good, or I can make pricing accomodations with the seller to allow for me to make the repairs myself and be happy with the plane? We're good to go! Seller unwilling to adjust price for a bad cylinder, inoperative GPS, etc. means I've got to decide if I'm willing to pay more for the airplane than eitehr of us was thinking it was worth... That stuff has to get fixed sooner or later, so it goes into the "deferred maintenance" budget and added to the total cost of the airplane. Still think it's worth the price? Buy it. You know what you're getting into...
And even with all this, there can still be surprizes that bite you in the wallet... An engine with perfect compression and excellent-looking valves can still have cam lobe corrosion and pitting that will require an overhaul. It's why we keep some money in reserve, and buy less airplane than the maximum we can afford, right? Right? RIGHT??? (Preaching to my own choir, here!)
I've been really lucky following the above process, and been very happy with every plane I've purchased. I've walked away from a couple of airplanes that might have been great, because their owners didn't want to go along with my process, but MOST owners have been quite reasonable about my requests. Especially when I'm willing to commit up-front to buying the plane for the agreed-upon price, pending a clean pre-buy (and they understand what that entails). There's always a clear understanding that any "show-stoppers" found in the pre-buy means the deal is off, and anything else that is a "major" expense (which I generally cap at $250 to repair) puts us back into price negotiation phase.
Good luck, and hope you find a great plane that is perfect for your mission!
Nrmangino7 wrote:Do you usually pick a few "hone" in on and do as much digging as you can before making the trek out to wherever the plane is?

JP256 wrote:Nrmangino7 wrote:Do you usually pick a few "hone" in on and do as much digging as you can before making the trek out to wherever the plane is?
I narrow the list considerably before even trying to get the logs. If I ask for the logs, I'm closing in for the purchase. I'm a firm believer that "my word is my bond", and that a man's word should be as good as any contract on paper. When I tell the seller that based on our conversations so far, I am seriously interested in buying his airplane, I mean it. If he has accurately represented the plane to the best of his knowledge, we're probably going to do business, unless something neither of us was aware of comes up during the pre-buy, and we cannot work out a workable compromise.
I bought a plane that needed a fairly major repair to the vertical fin, and agreed to split the cost of that repair with the seller. He was most appreciative. I was simply repaying his own willingness to keep his word when another buyer tried to get him to break our verbal contract by offering more money for the plane than we had already agreed upon, and his honesty pertaining to the rest of the plane's condition.
So, I'm generally only looking at one set of logs at a time, unless I find something that causes me to reject that plane, then I move on quickly. (lLike the "no damage history" airplane that had prop, engine, main landing gear, and gear attach saddle all pulled off and overhauled or replaced over a six-month period with zero flying time... I got the owner to send pictures of the firewall area taken with his phone, and could immediately see evidence of a seriously hard landing that had even wrinkled the firewall. The airplane was not airworthy and the expense of replacing a firewall on that type was so high that the plane was basically "salvage" at that point. Current owner had no idea - he bought it that way, and his IA signed off the annual — twice!
But after the logbook review, it's generally the case that I make an offer, contingent on the inspection process I described previously. If the airplane is as promised, I "own it" at that point. If not, we discuss and try to reach a new agreement.
So, basically it's one at a time beyond that initial logbook review.
mtv wrote:Who gives a rats ass about what condition a plane was in in 1954? Look, it's fine to go over the logs thoroughly, but more importantly, I want to know what kind of condition a plane is in NOW. And, yes history may shed some light on repairs, but repairs should show up in a pre buy.....a good one that is.
To me, that's the key: A good pre buy.
I would agree that a plane on the far side of the country presents risks. And most every plane is going to need something.
First, figure out what you WANT. Then figure out what you NEED. That's a good start. Don't waste a lot of time on ANY airplane till you settle on what you're looking for.
Then figure out how to get it done. But you're a long ways from that point at the moment....but you're asking great questions.
MTV
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