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Part 91 and Low Time Jump pilots, crop dusting, and other Part 91 jobs

Your view on a Cessna 340??

Old 04-25-2011, 08:51 PM
  #11  
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Originally Posted by wizepilot View Post
The place I work will do your 421 engines for maybe a tad under 200k for both. OUUUUCHHH!
Vaseline included?
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Old 04-27-2011, 06:59 PM
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All are good flying planes (340, 414, 421)

If possible, I'd go for 414A. No tip tanks, more fuel better performance.

Avoid the 421A at all costs (literally)

GTSIO-540 also have a 800-1400 TBO (depending on model). And it's geared.

(don't get me started)
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Old 04-27-2011, 08:01 PM
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Originally Posted by CrimsonEclipse View Post
All are good flying planes (340, 414, 421)

If possible, I'd go for 414A. No tip tanks, more fuel better performance.
The only issue with the 414A/421C is that with the wet wing, they fall under the Service Bulletin (SB) for the wing spar.

The tip tank models do not have the same wing and don't have that SB. Could be a costly ($70-80,000) thing if you're not careful with the aircraft that you potentially purchase. Be sure to read this post on AOPA before purchasing a 414A.

AOPA Online: Regulatory Brief -- FAA proposed twin Cessna wing spar ADs
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Old 04-27-2011, 09:41 PM
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Pre-buy.

I didn't see the 421 mentioned in the link but I'm sure it's likely included.

Cape air had a problem with a couple of their 402C's.

Mental note, it wasn't just the wet wing. The earlier models were a problem too.

I also remember several AD's concerning prop hubs cracking and exhaust leaks.
They were 50hour reoccuring. Since the exhaust goes right by the ring spar, a leak could mean a bad day.

(ask me how I know)
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Old 04-28-2011, 12:06 AM
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Originally Posted by CrimsonEclipse View Post

(ask me how I know)
Well now I'm curious!!!....

I heard a story about a mechanic leaving a greasy rag in the wing of a 402.

Result: In-flight fire from the exhaust..... Is this what you are getting at Crimson???

If so....... Sounds scary
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Old 04-28-2011, 07:19 AM
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Had an exhaust failure in a 421. Manifold pressure went to ambient.
I pulled power to idle and landed. I was lucky, it only burnt a hole in the
cowling and damaged the engine mount.

If I had continued with reduced power, the engine would have slumped and
the prop contacting the fuselage (where I was).

Other incidents include an exhaust failure upstream of the turbo charger and
near the spar resulting in loss of wing.

If you are in a turbo powered twin Cessna and MP goes to ambient, the proper
procedure is a COMPLETE SHUTDOWN.
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Old 04-28-2011, 06:33 PM
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I was in a recurrent training event (for insurance) once, and the person told us if you have a wing fire, a la exhaust leak or failure, you have about 4 minutes to get on the ground, hopefully in one piece.
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Old 05-18-2011, 10:42 AM
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Daang I start flying one of these next week....lets hope i don't have any mechanical problems!
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Old 05-19-2011, 06:40 PM
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Trust your A&P. Hopefully they are very intimate with the airplane and it's systems. The place I work, we have 5 421's, varying years. Some are fractionally owned. Anyway, my boss has about 20k hours in 421's. His most trying time, according to him, was when he lost a turbocharger when he was over the Rockies. He made it down safely, of course. Lose a turbo on any airplane up high, hope the ground isn't too hard and lumpy.
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