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Mel Asberry

Mel Asberry
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Mel Asberry is an experienced Designated Airworthiness Representative specializing in Experimental/Amateur-Built aircraft. He and his wife, Ann, have built seven amateur-built airplanes including two ultralight types, a Moni Motorglider, a Dragonfly Mk2, two RV-6s and a Zenair CH 601HDS. They are currently building a scratch-built biplane.

Ask the DAR

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Selling a project, Sport Pilot-eligible aircraft, recycling an N-number, Phase I testing.

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Non-builder maintenance, importing a kit from Canada, repairman certificate problems.

Ask the DAR

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Data plate questions, airworthiness certificate errors, complying with service bulletins.

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NX numbers on older designs, logbook records, proving compliance with the 51% rule.

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Repairman certificate requirements, increasing gross weight, correcting inaccurate V-speeds.

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Pilots operating handbook, the most common builder error, and adding vortex generators.

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Builders liability, N-number placement, qualifying for an E/A-B repairman certificate.

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Building an RV-12 as E/A-B instead of ELSA, trying to second-guess the FAA.

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Converting an ultralight to ELSA, kit without a bill of sale, engine missing its data plate.

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Avionics certification, ops lims for self-designed aircraft, house paint on Experimentals.

In Case You Missed It

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Can a former Part 103 aircraft be registered as an LSA? And how is an appropriate Phase I flight-test area determined?

Checkpoints

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Bad building practices.
The Superior IO-360 engine stripped and ready for cylinder removal. Note that oil return lines are capped as are the intake tubes in the sump. Until the decision has been made to completely tear down the engine it is best to protect everything as you go.

Maintenance Matters: Engine Overhaul Part I

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Evaluation and Removal.

When It’s Time to Throw That Landing Away

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How to go around safely.