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  #1  
Old 05-23-2022, 08:38 PM
RFSchaller RFSchaller is offline
 
Join Date: Oct 2010
Location: Phoenix, AZ
Posts: 3,301
Default Drip Pan Failed

Today I was doing a routine engine inspection after flying 5 hours since my annual. My left drip pan for the carburetor had failed due to fatigue failure. The crack was at the 90 degree bend at the forward end of the horizontal pan. Total time in service 1174 hours since March 2012 when I did first flight. Thought I would pass on the info so others can check theirs. Replacement parts on order - itís too hot in PHX to fabricate one from scratch!

Rich
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  #2  
Old 05-24-2022, 06:25 AM
mdoyle mdoyle is offline
 
Join Date: Jun 2005
Location: Xenia, OH
Posts: 164
Default

I also found drip pan cracks during my condition inspection last year. The new drip pans are much more robust than the original design. My airplane has been flying for 12 years, around 670 hours.
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Mike Doyle
RV-12
RV-9A, Under Construction
Xenia, OH 45385
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  #3  
Old 05-24-2022, 06:53 AM
PilotBrent PilotBrent is offline
 
Join Date: Dec 2011
Location: Hackettstown, NJ
Posts: 531
Default

Good reminder. I frankly don't look too closely at the drip pans since they are non-structural and didn't assume were under any real stress. Clearly vibration is unforgiving. Will certainly take a much closer look this week. thanks.
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Hackettstown, NJ
RV-12, N913BC - EAA Light Plane Silver Lindy (2016)

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  #4  
Old 05-26-2022, 08:12 PM
seagull seagull is offline
 
Join Date: Dec 2019
Location: Highland, CA
Posts: 510
Default

Checked, no cracks.

I'm not sure what design changes were made to the pan over time. Mine is very beefy, it is a 2013 kit.

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Last edited by seagull : 05-26-2022 at 08:47 PM.
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  #5  
Old 05-26-2022, 11:03 PM
rgmwa rgmwa is online now
 
Join Date: Feb 2010
Location: Perth, Western Australia
Posts: 1,716
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The drip tray design was changed to include the curved stiffeners shown in the previous post sometime between Rev 1 (11/08/10) and Rev 3 (01/07/14) of the plans. I can't find an SB about it, but I seem to recall there were some reported cracks in the original design. I remember upgrading my drip trays around that time. Both Rich and Mike have older aircraft, and so may still have the original drip trays.
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  #6  
Old 05-27-2022, 07:40 AM
mdoyle mdoyle is offline
 
Join Date: Jun 2005
Location: Xenia, OH
Posts: 164
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Yes, I had the original drip trays, without the curved doubler. I did not see the cracks until I removed the carburetors for rebuilding.
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Mike Doyle
RV-12
RV-9A, Under Construction
Xenia, OH 45385
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  #7  
Old 05-27-2022, 09:16 PM
RFSchaller RFSchaller is offline
 
Join Date: Oct 2010
Location: Phoenix, AZ
Posts: 3,301
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The replacement parts were a bit pricey at$30+ so Iíll probably rivet a doubler on to the other drip pan (as a preventive measure) at the next annual and save a bit.
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