The safest pilots are the ones who attempt to gain as much knowledge and learning about their airplane and environment as possible. These pilots are the ones who enjoy learning, going to seminars and conventions, and soak up all the MMOPA magazine articles in each issue. These pilots are the ones who get as much training as they can, above and beyond what the minimum requirements are.
If you are one of these pilots and you own a Piper PA46, then this blog is for you.
Casey Aviation, one of the best Piper PA46 training companies out there, recently released all of their Malibu, Mirage, Matrix, Meridian, and JetProp systems training videos for free. These are some fantastic videos that Casey Aviation created which go much more in depth than any power point presentation could.
The great thing about the videos is they give the viewer an all access “inside look” to the specific airplane. Joe Casey, owner of Casey Aviation, takes off cowlings, crawls under the nose gear compartment, and even shows an airplane with the interior out so all the flap cables and environmental systems can be seen.
I have started referring all of my PA46 customers to the Casey Aviation videos as part of the prep work for our training sessions.
To access the videos, check out the Casey Aviation website.
When it comes to turboprop engines, a hot start is a really bad thing. For you piston drivers out there thinking, “What’s the big deal, you are just starting a hot engine,” then here’s a little education for you.
In a PT6 turboprop engine, there is a very important temperature gauge that a pilot monitors very closely during each and every start. It is called the Inter-Turbine Temperature gauge, or ITT. This temperature is a measurement of the exhaust gases between the compressor turbine and the power turbine (s). In the picture below, the probe is located where the blue and red colors meet.
In a turboprop engine, specifically the Pratt & Whitney PT-6 in all it’s different sizes and variations, there will always be a specific temperature that the pilot will want to keep the ITT below. This article will deal specifically with a Piper Meridian.
A Piper Meridian starts hotter than almost any other PT6 engine because of the way it’s air intake is designed. Unlike other turboprops, the Meridian has a permanently open inertial separator. This means that not all the intake air makes it to the engine during start because some of it goes out the inertial separator opening. So, coming to a Meridian from operating other turboprop engines can lead to a little bit of a surprise on the ITT temperature being higher than what a pilot is used to when starting.
As a rule of thumb, when starting a Meridian, never let a start continue when the ITT hits 875 degrees. Based on the chart below, you are still in the safe zone at 875 and have about a 50 degree buffer before you have to start getting worried.
On cold starts with a good battery or a GPU, 875 is typically not an issue. Most starts when cold are going to be in the high 700s or low 800s. On a cold start, if you are seeing starts in the mid to upper 800s, try starting with a GPU and see if that lowers the start temperature. If it does, then that means your battery is weak and needs to be replaced. Another tell-tale sign of a weak batter is the Ng doesn’t spool up properly (meaning it settles around 12-13%) or takes a really long time to spool up. Also, never start on the battery with less than 24 volts.
When there are multiple flights in one day, the pilot has to take into consideration the warm engine prior to starting. If the ITT, prior to the start sequence, is above 150 degrees, it is time to do some motoring of the engine.
What is motoring? It is simply using the starter to turn the engine, which leads to air being sucked into the engine allowing the engine to cool off prior to start. The theory is, the cooler your engine prior to start, the cooler the ITT peaks at during start.
Here’s the steps on how to dry motor a Piper Meridian:
Battery on
Strobes on
Fuel Pumps and Ignition off
Throttle idle
Condition Lever feather/cutoff
Push the start button
Monitor the ITT temperature
Reaching 150 degrees, if less than 30 seconds have elapsed:
Fuel Pumps on
Ignition On
Condition Lever run
Reaching 150 degrees, if 30 seconds have elapsed:
Push Manual/Stop button to stop the start
Let starter rest for 30 seconds
The starter has a 30 second limit on the Meridian, followed by a 30 second rest period. You can do the sequence twice, then, after the 3rd start, there is a 30 minute rest period. Typically, if the ITT won’t cool down to 150 after the 3rd time, there is probably something wrong.
The most important thing a pilot can remember is never, ever push the condition lever forward if the ITT is above 150 degrees. You’ll be well on your way to avoiding hot starts that way.
April 18th, 2020 was supposed to mark the MMOPA Spring Safety Stand Down, an event held around the country for PA46 owners which counted toward the Master Aviator program. Sadly, due to the COVID-19 repercussions, the in person event had to be canceled.
Thankfully, due to modern technology, the event has been rescheduled to a nationwide webcast. The date for the Online MMOPA Safety Standdown in Saturday, August 8th. Joe Casey and Travis Holland will be hosting the MMOPA Safety Standdown.
MMOPA will be hosting it’s second Safety Standdown event at many locations across the country for Piper PA46 owners and pilots. The first iteration of MMOPA Safety Standdown in the fall of 2019 was a big hit. Each event was very well attended by MMOPA members.
What is Safety Standdown you ask? Safety Standdown was put together as a mid-year training event as part of the MMOPA Master Aviator program. It’s goal is to allow PA46 owners and pilots to fly in to a location at a reasonable time (the event starts at 10am local time), received some good quality ground training over relevant safety topics by highly experienced PA46 instructors, have a free lunch, then depart mid-afternoon to arrive back home before dark.
The event is free to all attendees. Lunch will be provided at each location. This event is not exclusive to MMOPA members, either. Any PA46 owner or pilot, or just anyone interested in the PA46 world, are invited to attend.
Texas Top Aviation is hosting the South Central Region Spring Safety Standdown at the Henrickson Jet Center at the Austin Executive Airport (KEDC). Hank Gibson and Pedro Vargas-Lebron will be presenting on the following topics:
MMOPA Operational Practices review and importance of stabilized approaches
Crosswind Takeoffs and Landings
High Density Altitude Operations
A discussion of thunderstorms, resources in the cockpit for weather avoidance, and accidents that have occurred involving thunderstorms
The MMOPA Spring Safety Standdown will take place on Saturday, April 18th, 2020. Registration is required for the event. The link for registration can be found here.
Come on out for some high quality training and free BBQ with 50 of your closest PA46 buddies!
Sometimes, it’s hard to find a good shop that does quality work and communicates well without charging a fortune. Luckily for the PA46 owner, there are lots of good options. Here are the Texas Top Aviation recommended Piper PA46 maintenance shops.
Lubbock Aero (KLBB)/Abilene Aero (KABI)-Texas
Lubbock Aero and Abilene Aero are owned by the same company. Both are Piper service centers. I have had some Piper PA46 maintenance interactions with Chad at Lubbock Aero over the last year and have been impressed.
The folks at Lubbock Aero are friendly, knowledgeable, and keep the customer abreast of what’s going on with their airplane. I haven’t been to Abilene Aero, but I suspect that the same quality of service exists there as well.
Chuck’s Aircraft (KEDC)-Austin, TX
Chuck’s Aircraft has been a Cirrus Service Center for a number of years. Recently, Chuck’s put several mechanics through Kevin Mead’s M-Class which educates mechanics on the ins and outs of Piper PA46 maintenance. Chuck’s is a great, convenient spot to get your PA46 worked on.
First Line Aero (KJSO)-Jacksonville, TX
Located on the same airport as Casey Aviation, First Line Aero specializes in Piper PA46 maintenance. Walking up to their hangar, it’s loaded with Malibus, Mirages, JetProps, and Meridians. Charles Crossman, the owner, has been turning wrenches for a lot of years. Anyone recommended by Joe Casey has a stamp of approval in my book.
Midwest Malibu (KHUT)-Hutchinson, KS
One of 2 nationally renowned PA46 shops, owners bring their PA46s from all over the country to Midwest Malibu. Owner Tony Beauchamp has personally assisted multiple of my customers when they have gotten in AOG situations with their PA46s.
Des Moines Flying Service (KDSM)-Des Moines, IA
I have not had any direct interaction with Des Moines Flying Service, but I have several customers who have. The reviews have all indicated knowledgeable mechanics, good work, and good communication.
Malibu Aerospace (KANE)-Blaine, MN
Malibu Aerospace (the second nationally renowned Piper PA46 maintenance shop) has done many great things for the PA46 line of aircraft. From the M1 Cooling Mod that alters the lower cowl and add baffles for cooling air getting to where it needs to go, to the M5 TSIO 550C upgrade for the original PA46-310P, the Malibu Aerospace guys know what they are doing with the PA46.
Hetrick Aviation (KTOP)-Topeka, KS
I recently learned about Hetrick Aviation in Topeka. I met a customer there to pick up his plane where it was having a pre-buy and annual done. Keith Hetrick, the owner, has worked on a lot of PA46 airplanes and was very knowledgeable in my discussions with him. He is also a pilot, so he flies each airplane after maintenance is done to make sure no bugs are present when an owner picks it up.
Those are the Texas Top Aviation recommended PA46 shops. Have another one to add? Post in the comments below and we’ll get it added to the list.
