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Factory A/C Removal


V1VRV2

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Something seems to be amiss...

1) CO in the cabin is very serious

2) Not using AC while on the ground is seriously non-economical...

3) Finding the source of CO would be important...

4) Finding the entry point of CO in the cabin would be important...

5) Is the CO from the usual exhaust source?

6) Is the entry from the usual outside air supply?

7) Were there seal improvements that came after this ‘rushed’ make a placard, turn the system off, solution?

8) Is it an always happens, or may possibly happen when...

9) How is CO related to the AC system?

10) What can be done to mitigate it?

There were so few AC systems in the early years.  There may be updates to the system...

We had one MSer that got his AC system worked on by a qualified mechanic... that disqualified the system using improper maintenance.  There were so few MSers with AC, there wasn’t much help available...

 

PP thoughts only and old memories...

Best regards,

-a-

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28 minutes ago, Gagarin said:

This might be “clickbait.” From the site:

THIS IS AN ADVERTISEMENT AND NOT AN ACTUAL NEWS ARTICLE, BLOG, OR CONSUMER PROTECTION UPDATE

THE STORY DEPICTED ON THIS SITE AND THE PERSON DEPICTED IN THE STORY ARE NOT ACTUAL NEWS. RATHER, THIS STORY IS BASED ON THE RESULTS THAT SOME PEOPLE WHO HAVE USED THESE PRODUCTS HAVE ACHIEVED. THE RESULTS PORTRAYED IN THE STORY AND IN THE COMMENTS ARE ILLUSTRATIVE, AND MAY NOT BE THE RESULTS THAT YOU ACHIEVE WITH THESE PRODUCTS. THIS PAGE COULD RECEIVE COMPENSATION FOR CLICKS ON OR PURCHASE OF PRODUCTS FEATURED ON THIS SITE.

Edited by Deb
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If you look at the AD it gives a list of airframe serial numbers. If I’m correct these are the only airframes that were affected? Because the serial number of the airplane I’m planning on purchasing isn’t on the list yet it has a logbook entry.

D622A42E-81AD-4C5D-8B0C-EB8084470114.png

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Ovations with air-conditioning built before 2000 were required to have this placard until a Service Bulletin was complied with, I don't recall which one but your Mechanic could tell you.  The SB reversed the airflow to the condenser in the tailcone plus a couple of other things.  I don't believe it was too costly to comply with.  Once that us done it can be used to all operations except takeoff.

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The cabin of Mooneys has the ability to run under enough vacuum...

That air is drawn from the back of the tail cone into the cabin...

Any opening near the exhaust stream can allow the CO to enter the cabin via the tail cone, Through openings such as the wire trough...

The wire trough has been known to not get sealed up properly after radio maintenance has been done...

CO monitors are all the rage since this AC CO issue came to light...
 

All MSers are using CO monitors lately... We have a CFII named Dan who negotiated a sweet deal on a good CO monitor...

The little chemical dots are sooo Pasé....   :)

Don’t get caught dead using one of those.

PP thoughts and PSA only, not a CFI or mechanic...

Best regards,

-a-

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