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Proof a thorough annual is important • plus more


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Hi All, I just wanted to share some stuff from my annual we finished today:

1. A 55 year old airplane can look as good as a 10 year old airplane given the right care. Even when everything looks to be in great shape, ALWAYS look over everything, even if the engine is new.   We found a baffling that had a little crack and had moved the 14" bolt down less than 2mm so it was chafing an oil line. It only took a ~150 hours for this to happen and another 100 hours I would probably had to land the plane on the road somewhere. 

2. Stop using duct tape at the wing root fairing. It takes a little more time to use 3M calk strips, but it's much better. 

3. When in doubt, replace. $200 is cheaper than a rescue.

4. Riveting is fun! Did my first riveting to replace the RAM Air baffling. 

Photos below.

 

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On 9/9/2019 at 3:13 PM, carusoam said:

Great pics, Dustin!

What tube got the wear mark?

is that a fuel line?

What was it rubbing with?

Best regards,

-a-

Under the cylinders there is a long rod that holds the two ends of the baffle together.  many times this rod gets replaced with safety wire.   The oil return lines from the cylinder heads contact the wire or rod and start wearing.    Oil is then allowed to escape.....   luckily this is not pressurized only, but would make quite the mess.

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2 hours ago, Yetti said:

...many times this rod gets replaced with safety wire. 

That's because R&R'ing those rods is a beyotch :lol:

Has to be done though and is a right of passage for anyone who claims to have worked on a Mooney with a doghouse!

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2 minutes ago, HRM said:

That's because R&R'ing those rods is a beyotch :lol:

Has to be done though and is a right of passage for anyone who claims to have worked on a Mooney with a doghouse!

This inspection should be caught not just at annual, but any time the cowl is opened up.

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