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Picture of the mounting bracket below. I'm assuming all of the black dust is from the brushes. Hi Dave - good to cross paths... hope all is well! Part of my conundrum here is to understand the role of a rubber washer or rubber bushing. Does a rubber part even belong in this assembly? If so is...

Thanks for the feedback! This alternator was installed about 550 hours ago as a generator to alternator upgrade on my Commander 500A Colemill. Engine TCM IO520-E. I agree that someone likely mixed up some of the parts and that's what I am trying to figure out. Even with the vibration problem the...

Noticed my alternator (ES-4011) has a fair amount of movement in the lower bracket attach point contributing to excess vibration and wear. I pulled the unit and examined all of the mounting hardware and discovered several problems as shown. Trying to find an assembly drawing but Hartzell tech...

Very helpful - I might be able to use these. Thanks!

Back in the heyday of GA a company by the name of Meletron made a variety of pressure switches for pneumatic, fuel & hydraulic systems. These units found application in various high end GA aircraft include some bizjets. My Aero Commander has several of the Meletron switches performing different...

This picture you posted illustrates the transition that I want to accomplish installing the side windows - a narrow border of sealant between the edge of the window frame tapering out by .25" - looks good and should create a great seal. I am putting the sides windows (with frameless vent window)...

No doubt there are dozens of sealant/adhesives out there, but some must be better than others. I want to install some side windows. Looking for a material that will handle the bonding task but will also allow me to form a nice tapered border to smooth out the step between the aircraft skin and...

This is very helpful feedback, thanks! Based on these comments I'm not going to worry too much about the pint of oil leaking out of the filter adapter. However I do want to figure out this high oil pressure reading on my instrument panel gauge (it's one of those 3-in-1 gauges). Seems like the...

Yes, nearly identical, at least in their vertical position.

Here is my situation: IO-520 with Airwolf remote filter, Hartzell prop, Woodward governor, Twin Commander. During a recent left engine oil/filter change I observed the following… drained the oil from sump – let it drain for a couple of days until it stopped dripping. Then I proceeded to remove...

Thanks for the feedback... I will report further as I inspect oil filter and take other action.

Had an attention getting experience today. Climbing out some 20 minutes after takeoff the left engine prop on my Commander started running away. RPM surging up and down by over 800 RPM with no warning. This event was not preceded by any power change or other pilot action. Prop control had...

The POA brain trust never disappoints. Great help, thanks!

While traveling on a commercial airliner recently I noted how thin yet strong the side panels were. Thickness was about .125 to .156. Panels were formed to match various curves and other features. Anyone know what materials might be available for GA interior use that have these characteristics...

Hi Edward... I'm a local to KSBP, have two hangars in site November. Would enjoy meeting up with you and talking shop and other things. --Rob

Hi August! As the owner of the current Bellanca Aircraft factory I would really enjoy connecting with you! Your family heritage is so highly respected in the aviation community - you have a lot to be proud of! Looking forward to knowing you better! --Rob Swanland

Hi Craig, our factory does not have these older records (or at least we have not found anything like this since I bought the business a while back). To the best of my knowledge the family of Giuseppe Bellanca donated all of the historic documents and type certificates to the Smithsonian. It is...

Very interesting point you brought up Brian... so I went back to read 61.1 again. While the Aeromatic propeller does not have a pilot operated control per se, the pilot actually does control the effective pitch based on the power and other flight conditions. 61.1 does acknowledge that the FADEC...

The Bellanca 14-13 Cruisair series featured retractable landing gear involving a manual hand crank operation. Later models - the 14-19 Cruisemaster series - incorporated an engine driven hydraulic pump which power hydraulic actuators to raise and lower the gear. Some Cruisairs have been modified...

You may find it helpful to refer to page 12 of AC 23-27 in which it provides some guidance on battery substitution. https://www.faa.gov/regulations_policies/advisory_circulars/index.cfm/go/document.information/documentid/1021446