August 2001 Issue

Looks Can Deceive

Mechanics may think instructions are for idiots, but give íem some anyway

Itís every motoristís nightmare, breaking down in an Audi in a rural town where the only mechanic knows only tractors, Fords and Chevys.

Surely, pilots reason, the same thing canít happen to airplanes. The technology is usually more familiar and the mechanics are more worldly. Besides, the FAA makes sure mechanics know how to fix airplanes, right?

If you believe that, youíd better stick to a factory-standard 1978 Cessna 172.

The fact is that modifications done to airplanes through supplemental type certificates and even Form 337s can give mechanics headaches. Although the vast majority are straightforward installations that are intuitive to remove, service and replace, there are en...

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