Mike C.,

Another thing you might start thinking about, since you are intent on being the poster boy of past TBO operations, if the Biffle Citation II had past TBO engines, what kind of criticism would he be facing posthumously right now?

Sometimes it’s better to let people make their own decisions and accept the consequences of those decisions.

TBO Extension thinks they can do it, so you need to figure out where they get it done:

https://atlanticjetpartners.com/tbo-ext ... 35-series/

If there is a past TBO HSI option, then the strategy can be implemented.

Mike C.

TBO Extension thinks they can do it, so you need to figure out where they get it done:

https://atlanticjetpartners.com/tbo-ext ... 35-series/

If there is a past TBO HSI option, then the strategy can be implemented.

Mike C.

That makes no sense at all. Why would Pratt enable a company to take their revenue?

Pratt being behind is just artificial scarcity, something a monopoly can do at will to disempower their customers.

TBO Extension STC never made any sense, costs way too much for what it is. You have to pay for their STC development costs, their profits, and their monitoring gizmos, which is why it cost way more than just an HSI.

An owner operator doing an HSI without the STC does make sense.

Mike C.

That makes no sense at all. Why would Pratt enable a company to take their revenue?

Pratt being behind is just artificial scarcity, something a monopoly can do at will to disempower their customers.

TBO Extension STC never made any sense, costs way too much for what it is. You have to pay for their STC development costs, their profits, and their monitoring gizmos, which is why it cost way more than just an HSI.

An owner operator doing an HSI without the STC does make sense.

Mike C.

You’ll get less reroutes when you go faster.

Chip,

I'm normally on your side but this is a low blow. Engines fail for lots of reasons. A member here on BT had a -1A fail on takeoff a few months ago. The engine had a cycle-limited disk that failed before it hit its cycle limit so he was doing everything right. He handled the engine failure correctly, came around, and landed the plane safely. All the evidence we have in the Biffle crash points to the pilot borking the engine failure, not the engine failure itself. Besides, if the HSI was done properly, it should have identified and replaced any out of tolerance parts. What would an OH do that the HSI would not?

Chip,

I'm normally on your side but this is a low blow. Engines fail for lots of reasons. A member here on BT had a -1A fail on takeoff a few months ago. The engine had a cycle-limited disk that failed before it hit its cycle limit so he was doing everything right. He handled the engine failure correctly, came around, and landed the plane safely. All the evidence we have in the Biffle crash points to the pilot borking the engine failure, not the engine failure itself. Besides, if the HSI was done properly, it should have identified and replaced any out of tolerance parts. What would an OH do that the HSI would not?

No, the answer would start with, "Federal Aviation Regulation X (can't be bothered to look it up) states that overhauls are not required for Part 91 (personal) flying. We dutifully follow all Federal Aviation Regulations that apply to our flights. Furthermore, there is no evidence that an overhaul would have decreased the chances of the engine failure beyond what was done during the Hot Section Inspection. During that Inspection, all parts of the engine are Inspected and if any are out of tolerance they are repaired or replaced. The Inspection was performed on X date by X shop and all inspection steps and remediations were completed according to the manufacturer's guidelines."

I would then compare it to a car (which a jury could easily understand). Do you replace all of the guts of your car engine every so many miles whether it needs it or not? Of course not, throwing away perfectly good parts is stupid. Instead you inspect the engine at the manufacturer's recommended intervals and if anything is found to be out of spec you repair or replace it. An engine is an engine.