Maintenance

Each one of our experimental aircraft is unique, but they share many systems which need maintenance. It has to be done regularly to keep the aircraft airworthy, and it must be done correctly. Builders and owners share knowledge and tips for saving money in the process.

Engine Oil Analysis

When I purchased my GlaStar in February 2013 I had arranged over the phone for a pre-purchase inspection, then upon satisfactory findings, I flew...
Spark plug tray, adjusting tool, gap gage, spark plug socket and extension, magneto timer, torque wrench, combination wrenches, ratchet, socket and extension

Tools to Maintain Your Sportsman or GlaStar

As we get more Sportsman builders who may not have extensive tool collections, the question has come up, what tools do I really need...

Service Bulletin for Dynon Heated Pitot Tubes

Applicability and Affected Equipment This bulletin affects the Dynon Avionics Heated AOA/Pitot Probe (p/n 100667-000). Description Dynon Avionics has received reports from pilots who have experienced degraded...

Service Bulletin 72 for Sportsman and GlaStar Aircraft

Subject: Autopilots Cable Clamps Applicability: All Sportsman and GlaStar Aircraft Date: 7-11-14 Discussion: There have been several reports of slipping autopilot cables using the clamp system that is...

Hazardous Chemicals in the Building Process

As you build and maintain your airplane you will likely use a number of hazardous chemicals. Knowing how to handle these chemicals safely and what...

Shimmy Fix for Nose-Heavy GlaStars

Nose wheel shimmy can be a very destructive and difficult-to-diagnose problem in aircraft with free castering nose wheels. Here's a simple solution to this...

Sportsman Cage Replacement in Cameroon, Africa

Several years ago, Tom Needham – missionary pilot in Cameroon – experienced an unforeseen downdraft on final approach into one of the many villages...
GlaStar nose wheel bearings. Photo: Arlo Reeves.

Wheel Bearings

I was concerned about the salty sand we landed on in Baja corroding my wheels, so I rinsed them off and went flying, but...

Aux Fuel Pump

One of my aux tank pumps stopped working, so I decided to remove it and take it apart. New pumps are not expensive but...
Engine disassembly

Engine Overhaul

As part of requirement to obtain my A&P certificate, I was to witness a few more engine overhauls, so I called Poplar Grove Airmotive...