So the Word became human and made his home among us. He was full of unfailing love and faithfulness. And we have seen his glory, the glory of the Father’s one and only Son (John 1:14).
From the Texas Top Aviation family (Hank, Kelsey, Everett, Cooper, and Cord) to your family, we wish you a Merry Christmas! We are thankful for how the Lord has blessed us this year. We pray for blessings on your family this coming year.
A Cirrus is an electric airplane. There are no vacuum pumps and therefore no vacuum driven instruments. The Klapmeier brothers did this on purpose, trying to make it a modern airplane. No vacuum systems means no vacuum pump failures, hence there is a lower likelihood of instrument failures in IMC.
What Cirrus did instead was put a lot of electricity producing and storing devices in the airplane. All SR20 and SR22s are equipped with 2 engine driven alternators and 2 backup batteries. Alternator 1 is a 28 volt alternator (the amperage varies based on whether or not you have an air conditioner) while Alternator 2 is a 28.5 volt alternator. There are 2 24 volt backup batteries, as well. Battery 1 is also used for starting.
In traditional airplanes that have 1 alternator, an alternator failure can affect a lot of things. Depending on how many electronics are in the airplane, the battery can get depleted quite quickly.
The Cirrus electrical system is quite ingenious. It’s a little bit different based on whether you have an Avidyne Cirrus or a Garmin Perspective Cirrus. I will discuss that further below.
The main goal of this article is to talk through what happens in the event of a #1 Cirrus Alternator Failure (an Alternator 2 failure actually isn’t a big deal at all, though Alt 2 is required for IFR flight), the procedure for trying to fix it, and a technique I have developed that makes the pilot’s job easier. First, let’s go through the #1 Cirrus Alternator Failure procedure.
Alternator 1 Failure
In either avionics configuration, the Cirrus Alternator Failure procedure is the same.
Check and reset the circuit breaker for Alternator 1 (Reset only once)
Cycle the Alternator 1 master switch
If Alternator 1 doesn’t come back online, leave the Alternator 1 master switch off and shed load on the battery
Avidyne Entegra
The Avidyne Entegra has 2 busses, the Main Bus and the Essential Bus. Alternator 2 isn’t set to come on until the engine RPM reaches 1700. While on the ground, Alternator 1 runs both the Main and Essential Buses. In the air, Alternator 1 runs the Main Bus and Alternator 2 runs the Essential Bus. Since Alt 2 is 28.5 volts, the higher voltage won’t allow the power from Alt 1 to cross over and run the Essential Bus. There are also 2 one-way directional diodes that prevent the voltage from Alt 2 to cross over and run the Main Bus.
Having said all that, when Alternator 1 fails, Battery 1 is now running the items on the Main Bus. There are a significant number of items on the Main Bus which causes the 24 volt battery to quickly lose it’s charge. This precipitates the need for shedding load. Items like GPS 2, the air conditioner and aircraft lights can all be turned off.
In the above scenario, Alternator 2 is running the Essential Bus still that has all the Essential items on it. Those include:
The PFD
Flight Instruments and associated Avidyne computers
Engine Instruments and associated Avidyne computers
GPS 1
Com 1
Nav 1
Autopilot
Stall Warning
Charging Battery 2
Note 2 important items that are not on the Essential Bus: the flaps and the landing light (which is very handy at night). Those two are only on the Main Bus, which Battery 1 is now powering.
Let’s further enhance our scenario. You are flying over Nevada (quite remote and not a lot of airports) at night, 30 minutes from the nearest airport when your Alt 1 fails. When you get to the airport you are planning on landing at, you want to have your flaps and your landing light, but we don’t know how long Battery 1 will last.
The solution (this is where my technique comes in): Turn off the Battery 1 master switch. This is an easy solution to ensuring you have battery power to use your flaps and landing light. Instead of going through and shedding load, simply turn off the source. You’ll still have all the above items on the Essential Bus, which is all you need to keep safely flying. Then, when you get to your landing airport, turn Battery 1 back on to utilize your flaps and landing light.
Garmin Perspective
Cirrus wired the Garmin Perspective plane a little bit differently. There are now 2 Main Buses along with the Essential Bus. Alternator 1 runs Main Bus 1, while Alternator 2 runs Main Bus 2 and the Essential Bus. Both Alternators are running all the time. The Alternator 1 Failure procedure remains the same.
The cool thing that comes along with the second Main Bus in the Perspective is the amount of items you still have available to you in the event of an Alternator 1 failure. The only items you lose will be:
Yaw Damper
Landing Light
Air Conditioner and associated components
EVS Camera
12 Volt power supply in armrest
Everything else is powered off of Alternator 2. That’s not much. The only item you really want on the above list is the landing light if you are going to be landing at night.
Follow the Alternator 1 Failure procedure, then do my technique again. Turn off Battery 1 to save the battery power in order to use the landing light when needed.
Cirrus did a great job creating an all electric airplane with plenty of backups in case something fails. I focused mainly on the Alternator 1 failure here. If Alternator 2 fails, the system is wired for Alternator 1 to run everything while still charging Battery 1 and 2. No big deal.
In my experience, turning off Battery 1 to conserve battery power is just a simpler solution when shedding load in the event of a Cirrus Alternator Failure.
Only now did I begin to realize the severity of the situation. The deer had completely broken the left main gear off of the airplane. Obviously, landing in this condition would not be ideal. Landing without a nose wheel is one thing, but landing without one of the mains would be a very dangerous and undesirable proposition.
The company’s maintenance guys arrived on the scene while I executed a few more low passes so that they could take a look. We all came to the same conclusion that the best situation for landing would be to retract the other two wheels so I could land on the belly. Unfortunately, the landing gear wouldn’t retract. Cranking the emergency gear handle didn’t work either as it is not designed to bring the wheels up, only to put them down.
I flew circles around the airport for a while as different options were all discussed. I owe a lot to the guys on the ground who were digging through the manuals coming up with solutions. Eventually, it was decided that I would try cranking the gear up by hand, even though the checklist in the airplane said that it could only be used to lower the gear. Even if we damaged the hand cranking mechanism, it would be worthwhile…plus, I’d already torn off the left main entirely, surely a little damage to the retraction mechanism wouldn’t be the end of the world!
Following the checklist, I pulled the CB for the gear motor and started cranking. To my great relief, the “in transit” light illuminated and the three green indication went away. It was difficult work to crank the gear up manually. The handle is in a very poor location in Barons and Bonanzas, plus I was working against gravity. It is also possible that there was some debris from the missing wheel causing friction or binding. While I was cranking, the rescue crews were being coordinated while extra vehicles and people had been called in from the city for support.
After some time had passed, enough to get a slightly sore arm from cranking, the lights indicated that the gear was up and locked. I lined up for one more pass hoping to verify that the landing gear was up and the landing gear doors were closed. After the final go ahead from everyone on the ground, all that was left was the landing.
I had been doing my best to keep the passengers informed of what was happening throughout the whole flight, but I felt bad for them as the news changed from the beginning of the flight: “precautionary landing” was quite different than the briefing I ended up giving them before we landed. I informed them that I was going to be “… killing the engines and landing with the gear up….” They did an impressive job of staying calm and being responsive. Before we landed, I made sure that they were all briefed on what to expect, how to unbuckle, and how to evacuate from the airplane. It is difficult to convince someone that everything is going to be fine when there are hordes of emergency vehicles (including ambulances) waiting next to the runway in anticipation of your landing.
Shortly before landing, I went through my flows and callouts, then verified by use of the checklist to ensure I hadn’t missed anything. I distinctly remember sitting in the airplane preparing for the landing, all the while being in complete disbelief that this was a real situation. I never imagined that I could be flying an airplane that was missing a wheel strut. Previously, my assumption had been that if there was an event serious enough to shear off one of my mains, the airplane wouldn’t continue flying. It all seemed like a bad dream.
I elected to use runway 26 since it was the longest. I wanted to be able to carry extra speed in order to give myself extra time between pulling the mixtures and landing so that I could feather the props and turn the fuel shut off valves to the off position (never thought I’d have to do that!) without being rushed. As I made my final approach with the engines shut off, I went through my final memory items and couldn’t help but laugh about just how backwards everything was from normal arrival procedure. GUMPS: Gas- Off (normally on the fullest tank), Under carriage- Up (Definitely not normal), Mixtures- Idle cut off (I normally save this for when I’m parked on the ramp), Props- Feathered (Again, never thought I’d have to do that in real life), Seatbelts- On (the only one that stayed the same!).
On final approach for runway 26 with the gear up and the props feathered. Photo Credit: www.lancasteronline.com
I’ve had several remarks about how quiet the airplane must have been during the final un-powered glide to the runway, and while that is absolutely true, I must confess that I never noticed. I was so focused on the task at hand that the silence in the airplane simply wasn’t something that stuck out to me. What did make an impression on me, however, was the acceleration the airplane experienced when the props were feathered. I’ve heard it preached many times the importance of feathering the propeller on a dead engine, but never truly appreciated the importance of it until I did it myself. I remember the airplane accelerating noticeably as though I had hit a boost button which was hidden somewhere in the cockpit for just such an occasion.
Although I didn’t notice the lack of noise upon killing the engines, the sickening, deafening noise which was produced during the touchdown and deceleration is something which I will never forget. Another thing that surprised me was the smoke which filled the cockpit and cabin as we slowed down. This was produced by the friction between the belly and the runway, although nothing was burning.
I don’t know how long the airplane actually slid for after touching down, but it felt like an eternity. However, when the noise subsided and the motion stopped everything returned to real time. I unfastened my seat belt, opened the door and climbed out onto the wing. I helped the passengers evacuate and we retreated to a safe distance on the side of the runway while the firefighters rushed in to do their job.
Tow Truck Unloading the Baron in the Maintenance Hangar
The step took the brunt of the runway damage and actually saved the right hand flap from contacting the runway at all
It was 8:35 am. So, from the time we took off to the time we landed was almost exactly an hour and a half. Not surprisingly, the passengers elected not to continue on to Pittsburgh and instead accepted a ride home in a car. The rest of my day was a blur of paperwork, reports, and phone calls.
Andrew Robinson is an airline pilot for Piedmont Airlines. He is a former 135 Charter Pilot and flight instructor who lives with his wife and 2 daughters in Pennsylvania. He instructs in Beechcraft Bonanzas.
Talk about star treatment. The Lajitas Golf Resort rolled out the red carpet for the 2019 Texas Top Aviation Lajitas Fly In. I had been to Lajitas twice before; once in July when it was hot, miserable and bumpy. The second time was the week before our Fly In. Both times, everyone from the airport folks to the bus drivers to the front desk and restaurant staff were top notch. It made for a very pleasurable experience.
If you haven’t been out to Lajitas (or don’t even know where it is) and you’re a pilot (you don’t even have to play golf), you have missed a sure gem. Lajitas is positioned on the southern tip of the Big Bend area of Texas, right on the Rio Grande river. Lajitas has great lodging with several different room options from big to small, an excellent restaurant for 3 square a day (and even a bakery for sweets, coffee, and breakfast tacos in the mornings), and a 5 star golf course in Black Jack Crossing.
Why is this all relevant to us aviators? Lajitas has it’s own private airport, 89TE. Complete with a 5,500 foot asphalt runway, VFR conditions most of the year, and reasonable fuel prices, Lajitas is the pilot’s gateway to the resort and the entire Big Bend area. If you wait until the fall, a brand new, 7,000 foot concrete runway should be completed and an IFR approach should be available. An AWOS is in the works too.
The resort and airport are so far south, radar and radio coverage with Albuquerque Center is pretty poor below about 15,000 feet, and non-existent below 10,000 feet. This isn’t a big concern as any airplanes in the area should be on 122.9 and the airport manager will make contact with you, give you a weather report, and assign a runway.
Once you are on the ground, there will be a resort bus waiting to whisk you and all your friends to the resort for your getaway.
The 2019 Texas Top Aviation Lajitas Fly In was a big hit. We had 7 airplanes total: 5 Cirrus SR22s, 1 Piper Matrix, and 1 Citation M2. There were 15 attendees total, including 13 golfers. Everyone raved about the resort and the golf course. The only hiccup in the weekend was the cold front that blasted through on Friday afternoon, kicking up a lot of dust. Golfing on Saturday was windy too, but Sunday morning was absolutely perfect.
Thanks again to the folks at Lajitas for the star treatment!
Interested in participating in the next Texas Top Aviation Fly In? Contact Us or Sign Up for Our Newsletter and we will make sure you find out about the next one so you don’t miss out!
Let’s face it: airplanes are not the best classrooms. The propeller is running, the engine is making lots of noise, the pilot is attempting to multi-task and the instructor is barking orders. That’s almost as much overstimulation as being a parent to 4 kids under 10 (I have experience in that arena!). That’s even before takeoff!
At Texas Top Aviation, we have observed many situations where a simulator would be an excellent way to introduce different concepts and supplement training. Now, in our Austin Executive (KEDC) office, we finally have a really good simulator.
Meet the Noble Flight Simulator, the next best thing to a Cirrus cockpit. With the Noble Flight Simulator, we can duplicate 6 different types of Cirrus aircraft (G3 SR22, G3 SR22T, G5 SR22, G5 SR22T, G6 SR22, and G6 SR22T). The Garmin Perspective panel easily swaps between the G3 and G5 configuration to the G6 configuration, so the buttons are all in the proper places.
Want to experience actual emergencies? An engine failure is a lot less stressful in a simulator.
Want to pull CAPS (Cirrus Airframe Parachute System)? The Noble Flight Simulator has a realistic CAPS handle with the same amount of pull pressure that the CAPS handle in the airplane has.
Need an IPC or want to practice approaches? All approaches done on a Noble Flight Simulator are luggable, plus a full IPC can be accomplished.
Want to save fuel? The Noble Flight Simulator is for you!
To top it all off, the Noble Flight Simulator that Texas Top Aviation has is classified as an Advanced Aircraft Training Device. It is certified to the highest standards of non-motion simulators, allowing pilots working toward their private and instrument ratings to log a significant amount of time toward that certificate or rating. Up to 20 hours of IFR training is allowed to be logged in an AATD toward an instrument rating. That’s huge!
Texas Top Aviation is also developing a CAPS specific course to expose Cirrus pilots to the many different scenarios where pulling CAPS would be necessary. This teaches Aeronautical Decision Making to Cirrus pilots who struggle with the decision of whether or not to pull CAPS. Look for CAPS course information under our Aircraft Training page later this summer.
Interested in checking the simulator out? Contact us today!
Austin Executive Airport opened a control tower on Friday, February 23rd 2018. The airport is now officially Class D airspace. The charts and A/FD are not updated yet to reflect the tower, but there is a NOTAM with the tower and ground frequency information. The tower hours are from 6am to 10pm. The weather frequency remains the same.
Make sure you check those NOTAMs if you are headed to KEDC anytime soon!
Yes, you heard correctly. Last fall, Cirrus released a program called Cirrus Embark. The Cirrus Embark program offers 3 Free Days of Training to new purchasers of used Cirrus aircraft. The 3 Days is equivalent to the Cirrus VFR Transition Training Course.
Previously, Cirrus offered free factory training to anyone who purchased a new Cirrus from the Cirrus factory. Now, anyone buying a used Cirrus gets the same offer through Cirrus Embark at their home airport with a local CSIP training provider.
IFR pilot? No problem. The Cirrus IFR Advanced Transition Training Course is 5 days in length, but the Cirrus Embark program covers the first 3, reducing the out of pocket pay to only 2 days.
