Aerodon

I think the 2.5G warning in the 252 is next to useless. A 9 or 10G warning would be much safer, much like the Bonanzas that state no takeoff with less than 1/4 tanks. Don

This will work, google the usual suppliers. LONE STAR STEP UP 12V TO 24V CONVERTER I have a new one for you at a discount to the best price. Aerodon

Something is not making sense. I'm familiar with the K model, but the M cannot be much different? The trim servo should be the easiest to replace - it's a sprocket and chain arrangement, accessible through the avionics door. Easy. The pitch and yaw dampers are next easiest. cable attached to the fore and aft end of the pushrods. Inspection doors at the back, through the avionics bay at the front. Cable tension needs to be adjusted, and three different bridle cable lengths are available. But the servo mounts are so exact, I can't believe it will take long. The aileron servo is most tedious to install, but one the cable routing and alignment are sorted, replacement can't be too long. I think you are paying for someone else's learning experience. I have seen techs spend hours reading through installation or service manuals before starting, and others that can open the book at the page that is needed. Aerodon

I have a few new old stock GEM probes - CHT gasket style, CHT Bayonet, CHT 'adaptor, style. Also a couple of Alcor CHT probes. Someone must need these as 'standy' spares? GEM 2853 CHT Sparkplug x 4 GEM 2855 CHT 'adaptor' probe. This is the one that allows the OEM bayonet probe to remain in service ALCOR 86251 CHT Bayonet x 4 ALCOR CHT and EGT wires Aerodon

I have on for you, PM to follow. Aerodon

Are you talking about the shelf above the passenger's left knee? Mine was starting to look like swiss cheese because of all the different antenna splitters that had been mounted on the forward side. So I drew it and cut a new one on my CNC machine. This is an easy enough part to make by hand, but if you want something that looks like it came from the factory I can cut one for you. Aerodon

Hank It would appear the engine had about 2700 hours and about 230 SMOH. And it was either a 1600 or 1800 TBO to start with (depends on serial numbers). A factory overhaul would have replaced the gear. A field overhaul should NDT all the gears and make a decision. Not compulsory I would imagine, but apparently not wise in this case. So it was 'engineered' well enough to get to TBO, but I think major components should get at least 2 overhauls? Aerodon

Erik, the gear is not visible, its one of the gears in the accessory case, that why it is so difficult to change. Aerodon

Yes, I don't know how you could overhaul an engine and not replace this gear without worrying about the liability..... "To eliminate the possibility of camshaft gear tooth fracture, resulting in power loss or in-flight shutdown, and to inspect and remove from service P/Ns 631845, 655430, 655516, or 656031 and replace with camshaft gear, P/N 656818. This Service Document initially announced the release of improved camshaft gear P/N 656818 in 2005. It now clarifies part number superseding action and amplifies camshaft gear replacement instructions."

As far as I can see this could have been a 1600 or 1800 TBO engine with 2000 hours. We had an O360 (TBO 2000) that was running fine at 2900 hours. We made a decision to overhaul at 3000 hours because we did not want to put ourselves in the position of trying to answer that question. This was not such an easy CSB to comply with and I may not have complied with it. But this report is making me more conservative, so I think this should be one of the issues to take into account when stretching your TBO. Aerodon

This one is sold, but I have put together a newer and nicer system. Contact me.

Yes, even if you buy it privately from out of province, the PST guys will eventually track you down and ask for 12%. If you buy from a dealer they are supposed to collect GST/HST/PST. Aerodon (BC)

Congrats Pieter, looking forward to your spreadsheet of information. Don

I have a new EDM930 display unit, ideal for the start of an upgrade from an EDM700, 830, etc. I have new and 'as removed' parts on hand to make up the rest of a system. Aerodon

I don't use this very often so maybe someone else needs it for ground operation of your avionics. These cost $785 new from ACS. Aerodon

I have a couple of those side panels with round holes for other clocks. Send me a pm. Aerodon

Nicely done with the color coding. The annunciator is calibrated to trigger an alarm when the fuel reaches a low level. A JPI EDM900 can be programmed to provide a low level alarm (to the red/yellow annunciator or a separate low fuel alarm). I'm not sure if this is on the calculated low level or measured low level. It look like the GI-275 can have a discrete out on reaching a measured low fuel level. But the annunciator is not looking for a discrete in, its looking for a voltage or resistance below a certain level. I'm going a different direction, replacing the annunciator panel with a series of Eaton annunciators. Personally I think the Mooney low fuel at 2.5G is useless, I prefer an overall low level of 8-12G. Aerodon

Here is a picture of one of the two ACU's installed in my 252. It was probably made by Zefronics for Mooney, but maybe they have a secret stash somewhere? Alan Fox is parting out a 252 and probably has two for you, along with the mounting bracket? And there are a couple of service bulletins around the ACU's. One is to splice an additional ground near the ACU, another is to relocate the 'field V' sense wire away from the field breaker. This one makes sense, if the field breaker trips there is no way for the ACU to provide the warring light, when you really need it. But Mooney went about it in a really convoluted way with wire splices to the annunciator panel and the hi/lo vacuum switch. It's much easier to relocate this ring terminal from the field breaker to the annunciator and hi/lo breaker. Don

Complete system, really nice 2019 unit. Current production model that can be used with all different fuel quantity transducers. Reprogrammed by factory for your N# and engine limits. IMO, you can reuse your JPI EGT/CHT harness and probes. And maybe one or two other transducers like FF and OAT. Don

I have two transponders for sale: 1) GTX345DR - like new with paperwork and new install kit $7500 2) GTX345R with GPS with 8130 and new install kit $5500 3) Vertical mount instead of horizontal mount for above $500. The DR is the unit that Canadian customers need. The 'with GPS' is the unit you need for a G1000 upgrade or any other installation where you do not have a WAAS position source. Can be controlled with a G3x or GI-275. Aerodon

I have two spare RF filters like the ones shown above on the RHS, from 1996, not 1986 if you want to get newer.... I'm not tempted to replace mine. Don

I have a TSIO360MB that I am thinking of parting out. We can have a discussion about the whole M induction system if you want? Aerodon

A PlanePower alternator control unit (ACU) has a 'fault lamp' that operates when there is a fault by provide a ground for a lamp and 1A CB. I think my 252 has something similar for 'low volts'. There is not much that can go wrong with this circuit other than a short in the wiring. And if you are having problems with this annunciator while the voltages appear fine, more than likely to be a wiring short. Not difficult to trouble shoot either, apart from the intermittent nature. Aerodon

A mere 10:04 hours on Friday: https://www.flightaware.com/live/flight/N5810T/history/20240815/2314Z/RPLC/WSSL

I removed the front one so I can install a traffic antenna. Had to take headline off. I can't remember if there were nut plates underneath the screws, but there are spacers and washers between the mounting plate and the out skin. So even iff there are nut plates, you don't want those rattling around. I removed the rear one to install a GPS/Com antenna for my lynx traffic system, had to move the antenna sideways and drill some new holes. But there is already a nice triangular doubler riveted to the skin, so no structural issues. So now I have these two antennas for sale. Make me a decent offer. Aerodon