Piston MSB affecting newer engines - MSB-E4-043
Moderators: Rick, Lance Murray
- Mdm0515
- 3 Diamonds Member
- Posts: 54
- Joined: Fri Jul 27, 2018 2:52 pm
- First Name: Matt
- Aircraft Type: OTHER
- Aircraft Registration: None
- Airports:
- Has thanked: 17 times
- Been thanked: 26 times
Re: Piston MSB affecting newer engines - MSB-E4-043
A sorry and difficult situation for Diamond owners. Sold my 40NG several years ago in the midst of other Austro failures, some resolved and some not. I also did not like the opacity of Diamond’s response to forced landings and near crash events which just seemed to come out of nowhere and never get any airtime or explanation. This will not help resale obviously and I would resolutely never own a Diamond again powered by Austro. I feel fortunate to be on the other side of ownership now and feel bad for those who are affected. Diamond will (or should) face value destruction lawsuits by owners who want out of their plane but can’t get appropriate value due to the continual failure of Austro/Diamond. I see class action coming.
- Boatguy
- 5 Diamonds Member
- Posts: 2103
- Joined: Mon Jan 22, 2018 4:48 am
- First Name: Russ
- Aircraft Type: DA62
- Aircraft Registration: N962M
- Airports: KSTS
- Has thanked: 1592 times
- Been thanked: 1407 times
Re: Piston MSB affecting newer engines - MSB-E4-043
My core is exactly the same as yours, but my pistons are rev AD1.ingramleedy wrote: Mon Sep 30, 2024 2:52 pmIt part of my Engine Log Book that I scanned and searched.Boatguy wrote: Mon Sep 30, 2024 2:38 pm I’ve been unable to find that information. Where did you find it?
You can see there is a revision number as well on the part number. For my pistons P/N E4A-72-400-000 it revision AD2 for whatever that means.
Interesting that an E4P has the same engine core as the E4A.
Last edited by Boatguy on Wed Oct 02, 2024 6:04 pm, edited 1 time in total.
- cshavit
- 2 Diamonds Member
- Posts: 13
- Joined: Thu Aug 24, 2023 4:07 am
- First Name: Chuck
- Aircraft Type: DA40NG
- Aircraft Registration: N640EZ
- Airports: KBED
- Has thanked: 26 times
- Been thanked: 15 times
Re: Piston MSB affecting newer engines - MSB-E4-043
AD1 or AD2, it's still an ADBoatguy wrote: Wed Oct 02, 2024 5:53 pmMy pistons are rev AD1.ingramleedy wrote: Mon Sep 30, 2024 2:52 pm You can see there is a revision number as well on the part number. For my pistons P/N E4A-72-400-000 it revision AD2 for whatever that means.

- marcayala
- 1 Diamond Member
- Posts: 2
- Joined: Sun Feb 04, 2024 10:28 pm
- First Name: Marc
- Aircraft Type: DA40NG
- Aircraft Registration: N528PA
- Airports: KORL
Re: Piston MSB affecting newer engines - MSB-E4-043
Does anyone know the suppliers for the old and new pistons? Our service center seemed to think the old (good) supplier was German and new one French/Italian.
- ingramleedy
- 3 Diamonds Member
- Posts: 132
- Joined: Wed Apr 13, 2022 11:59 pm
- First Name: Ingram
- Aircraft Type: DA40NG
- Aircraft Registration: N238PS
- Airports: KBOW
- Has thanked: 164 times
- Been thanked: 90 times
Re: Piston MSB affecting newer engines - MSB-E4-043
Would be interesting data to know with those who have had cracked pistons what revisions they were and if there is any correlation.Boatguy wrote: Wed Oct 02, 2024 5:53 pm My core is exactly same as yours, but my pistons are rev AD1.
- michael.g.miller
- 4 Diamonds Member
- Posts: 315
- Joined: Mon Aug 24, 2015 12:52 am
- First Name: Mike
- Aircraft Type: OTHER
- Airports:
- Has thanked: 11 times
- Been thanked: 178 times
Re: Piston MSB affecting newer engines - MSB-E4-043
I'm happy to fill you in as well (feel free to shoot me a PM with a contact number), but Chris at your SC should have all the info.marcayala wrote: Wed Oct 02, 2024 10:43 pm Does anyone know the suppliers for the old and new pistons? Our service center seemed to think the old (good) supplier was German and new one French/Italian.
- BritInNC
- 2 Diamonds Member
- Posts: 29
- Joined: Sat Sep 02, 2023 6:36 pm
- First Name: Mark
- Aircraft Type: DA40NG
- Aircraft Registration: N642BL
- Airports: KRDU
- Has thanked: 10 times
- Been thanked: 20 times
Re: Piston MSB affecting newer engines - MSB-E4-043
This is an AD now. Same requirements as the MSB, effective October 9th
- pazorin1982
- 1 Diamond Member
- Posts: 2
- Joined: Thu Oct 10, 2024 3:08 pm
- First Name: Pablo
- Aircraft Type: DA40NG
- Aircraft Registration: ECJMZ
- Airports: LELL
- Has thanked: 5 times
- Been thanked: 2 times
Re: Piston MSB affecting newer engines - MSB-E4-043
How do you think this will impact the brand’s reputation? I’m in the process of acquiring a low-hour (100) DA40 NG with an engine not affected by the last three MSBs. However, I can’t help but feel that I’m buying into a brand that is losing market competitiveness due to these ongoing issues with Austro engines. Do you think this situation will negatively affect the resale value? I’m a bit concerned and unsure whether to proceed with the purchase, even though I love the plane overall.
- bdbogle
- 3 Diamonds Member
- Posts: 99
- Joined: Fri Jun 28, 2019 1:56 pm
- First Name: Bryan
- Aircraft Type: DA62
- Aircraft Registration: N224UT
- Airports: KEFD
- Has thanked: 66 times
- Been thanked: 60 times
Re: Piston MSB affecting newer engines - MSB-E4-043
I've had an order for a DA62 for well over 2 years and I've owned a DA42 for right at 2 years and love the product warts and all. The efficiency and features are great and getting off 100LL and moving to JetA is a long-term winner. I've been AOG once for about a month but part of that was holiday backlog. Several engine manufacturers have had ADs that have grounded airplanes for a while and eventually, those are figured out. I think Austro will also figure things out but it will be painful for a bit. Part of the joys of owning an airplane.pazorin1982 wrote: Thu Oct 10, 2024 5:15 pm How do you think this will impact the brand’s reputation? I’m in the process of acquiring a low-hour (100) DA40 NG with an engine not affected by the last three MSBs. However, I can’t help but feel that I’m buying into a brand that is losing market competitiveness due to these ongoing issues with Austro engines. Do you think this situation will negatively affect the resale value? I’m a bit concerned and unsure whether to proceed with the purchase, even though I love the plane overall.
Last edited by bdbogle on Thu Oct 10, 2024 7:56 pm, edited 1 time in total.
- Soareyes
- 4 Diamonds Member
- Posts: 366
- Joined: Fri Feb 28, 2020 12:47 pm
- First Name: Dan
- Aircraft Type: DA42-VI
- Aircraft Registration: N518R
- Airports: KINF
- Has thanked: 302 times
- Been thanked: 256 times
Re: Piston MSB affecting newer engines - MSB-E4-043
The same question was asked in 2007 about Thielert engines which live on under the Continental marque.pazorin1982 wrote: Thu Oct 10, 2024 5:15 pm I can’t help but feel that I’m buying into a brand that is losing market competitiveness due to these ongoing issues with Austro engines.
Under the other hand, how would you feel about owning a brand for which the only fuel with a known operational history is set to run out in six years?
I’m gambling that jet fuel and Diamond/Austro will still be around.
Current: DA42-V1
Previous: Hang gliders, Paraglider, DA40(x3), Cessna 150 Aerobat, SR22
Previous: Hang gliders, Paraglider, DA40(x3), Cessna 150 Aerobat, SR22