Annual
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It was time for the annual inspection on 6G, and so I went up with Dad to see our C172 with all of the access panels open. We had the work done at Missionary Maintenance (MMS). I have helped a friend of mine pound thousands of rivets together to build an RV-6, so I had some inkling of what the internals of a general aviation aircraft looked like. It was pretty interesting - really, there's not too much to a Cessna but the airframe, a simple carbeurated engine, a vacuum system, an alternator, and some flight controls.
I have been around large commercial aircraft undergoing A, B, and C checks at Mexicana, Northwest Airlines, Air Canada, Delta, Aer Lingus, and others, and so I have spent a fair amount of time in aircraft shops, and I have to say that I was very impressed with the thoroughness of MMS. They really take a lot of time and seem to really pay a great deal of attention to small details. Of course, the annual inspection is a thorough process as mandated by the FAA, but you can tell the difference between someone that takes their job seriously and someone who is punching a time clock. I was impressed.
Here are a few photos of the airplane through the inspection...
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C172 Cockpit with the seats removed, looking through the cargo door.
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You can clearly see erosion of the used sparkplug versus the newer one.
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View looking down the inside of the fuselage towards the tail.
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Powered by Lycoming! A closeup of the cylinder head on the O-320.