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  #1  
Old 02-13-2017, 02:59 PM
rightrudder rightrudder is offline
 
Join Date: Mar 2014
Location: Laguna Hills, CA
Posts: 1,853
Default Happy birthday! First condition inspection

It's been a great year with the RV-9A. I've put 112.9 on the Hobbs so far, and have flown from my home airport of Cable in Upland, CA to Arizona a couple of times (Chandler and Sedona) and a quick gambling trip to Jean, NV as well. Most of my flying is 30-45 minute breakfast hops to French Valley and Camarillo, and I've been to Hemet, Fallbrook, Fullerton, Hesperia, and Gillespie Field a couple of times. Did the SFRA route over LAX and loitered a bit over Malibu. Fun!

No major issues on the first annual, just some small fiddly stuff.

Airbox/filter: As other have experienced, the filter element has shrunk a little, so viewed head-on, it's a bit conical now. There's some pitting in the aluminum floor of the airbox where the filter element has vibrated against it...maybe a function of intake pulses/pressure waves acting on it. No big deal, but I'll keep an eye on it. FAB plate is holding up great...I made it out of 0.125" stock (twice as thick as the stock piece).



Engine, in general: Good numbers on differential pressure testing, as would be expected from a new engine. 80/79, 80/79, 80/80, 80/80. (Thanks, Keith, for fearlessly holding the prop during the testing!) Plugs look decent (photo shows them before cleaning and gapping) with the center electrodes just starting to show some oval-ness. No baffle cracks in stock baffling, though I did make a small brace to reduce flex near the oil cooler. Tightened hose clamps on all the intake coupler hoses. The metal ferrule on one of the fire-sleeved fuel hoses was just grazing the engine mount, so I made a scuff guard out of silicone rescue tape and tie-wraps to protect it.





Fuel filter/fuel servo screen: Both clean as a whistle!



Engine bolts: All have held their torque, both the engine-to-mount bolts and mount-to-airframe bolts.

Brakes: Pads are getting pretty worn...the worst one is pictured. I've reassembled everything for now, but will change out the linings at the next oil change. I think for future inspections, I'll change out the linings as a matter of course. They're only $35, which is cheap peace of mind, and I've already purchased the Avery tool for setting the special rivets. At the brake pedals there were a couple of very minor leaks, one on the 90-degree fitting (high-pressure side) on the master cylinder, the other where the high pressure flex lines meet the hard lines at the firewall. Both were flared joints, so snugging them down seemed to fix the problem.



Tires: Plenty of tread. Good for another year at least.






Empennage attachment bolts: I put a wrench on all of these to check torque. Some had relaxed just a little, but only required 1/16 turn or so to reach the torque spec.

Under the forward seat pans: Geez, removing/reinstalling these is definitely the most tedious part of the annual. Fixed a slight amount of fore/aft slop in the control stick by tightening the longitudinal pivot bolt. Secured a bit of wiring that had come loose, and really cranked down the friction block for the aileron trim.

Prop: I removed it to check torque of the prop extension bolts...everything within spec. Prop itself is holding up great (Catto 70x70 with nickel leading edges).



Some general observations: When working on the aircraft's interior, empty your entire toolbox onto the cargo floor! Anything to reduce the number of trips in and out is a good thing. Advil is your friend, both as a preemptive strike and afterward. Swap those seat cushions side to side to equalize wear. And where appropriate, mark torque specs for key components on or near the components themselves, so you don't having to go fishing through all the manuals to find them.

It's also a great time to clean everything up, remove smudges from the panel, etc.



__________________
Doug
RV-9A "slider"--sold in July 2021
Flew to Osh in 2017, 2018 & 2019!
Donation made for 2021
You haven't seen a tree until you've seen its shadow from the sky -- Amelia Earhart

Last edited by rightrudder : 02-13-2017 at 09:47 PM.
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  #2  
Old 02-13-2017, 03:50 PM
Jimbot Jimbot is offline
 
Join Date: Aug 2013
Location: FL & NC
Posts: 167
Default

Hi Doug,

Happy Birthday!

Neat post & pics - very informative!
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Jim Hall
VAF Annual Dues Paid
Former President, EAA Chapter 309 - EAA 309
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  #3  
Old 02-13-2017, 07:34 PM
rightrudder rightrudder is offline
 
Join Date: Mar 2014
Location: Laguna Hills, CA
Posts: 1,853
Default

Thanks, Jim!
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Doug
RV-9A "slider"--sold in July 2021
Flew to Osh in 2017, 2018 & 2019!
Donation made for 2021
You haven't seen a tree until you've seen its shadow from the sky -- Amelia Earhart
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  #4  
Old 02-13-2017, 07:44 PM
Chkaharyer99 Chkaharyer99 is offline
 
Join Date: Oct 2011
Location: Pilot Hill, CA
Posts: 868
Default

I always enjoy your write ups and photographs. Wishing you many more to come!
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Charlie
RV-8
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  #5  
Old 02-13-2017, 09:38 PM
rightrudder rightrudder is offline
 
Join Date: Mar 2014
Location: Laguna Hills, CA
Posts: 1,853
Default

Thanks, Charlie! It's fun to document this stuff. The next annual should go a little quicker now that I have the system down.

Forgot to mention...I checked the inside of the spar where the inboard aileron bracket attaches, per the Van's SB, and no cracks found. Having an eBay $15 borescope is a huge help here. I also recharged my handheld comm (kept in the mapbox for a backup) and re-familiarized myself with its operation.
__________________
Doug
RV-9A "slider"--sold in July 2021
Flew to Osh in 2017, 2018 & 2019!
Donation made for 2021
You haven't seen a tree until you've seen its shadow from the sky -- Amelia Earhart

Last edited by rightrudder : 02-13-2017 at 09:41 PM.
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  #6  
Old 02-15-2017, 01:39 AM
CAVU Mark's Avatar
CAVU Mark CAVU Mark is offline
 
Join Date: Dec 2014
Location: San Diego, CA
Posts: 140
Default Time to visit Brown Field and EAA Chapter 14

We have lunch every Saturday and flyouts most fourth Saturdays. The third Saturday is our Chapter meeting with a speaker and that may be a good time to visit. That speedster should make it down to Brown in no time. We are right under the tower.

We have two 3s and one 6A at the Chapter and I would like to see a 9A up close since that is my next target. I'll buy lunch!

Mark
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Mark

RV-3 sold - and I really miss it.
Stearman - N2S-5 completed/flying
L3 building for San Diego Air and Space Museum
Misc. others... F4F, F4U, HUP WACO YKS-7, JN4. TBF
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  #7  
Old 02-15-2017, 01:14 PM
rightrudder rightrudder is offline
 
Join Date: Mar 2014
Location: Laguna Hills, CA
Posts: 1,853
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Quote:
Originally Posted by CAVU Mark View Post
We have lunch every Saturday and flyouts most fourth Saturdays. The third Saturday is our Chapter meeting with a speaker and that may be a good time to visit. That speedster should make it down to Brown in no time. We are right under the tower.

We have two 3s and one 6A at the Chapter and I would like to see a 9A up close since that is my next target. I'll buy lunch!

Mark
PM sent. When these crazy storms (which always seem to happen on the weekends) ease up, I'll come by for a visit.
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Doug
RV-9A "slider"--sold in July 2021
Flew to Osh in 2017, 2018 & 2019!
Donation made for 2021
You haven't seen a tree until you've seen its shadow from the sky -- Amelia Earhart
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