600 hr items

Any DA62 related topics

Moderators: Rick, Lance Murray

Post Reply
User avatar
Deanrobert
2 Diamonds Member
2 Diamonds Member
Posts: 45
Joined: Sun Jan 06, 2019 3:16 am
First Name: Dean
Aircraft Type: DA62
Aircraft Registration: N801VA
Airports: SPI
Has thanked: 6 times
Been thanked: 5 times

600 hr items

Post by Deanrobert »

Current have 480 hrs on our 2017 da-62 , and as i anticipate our 600 hr inspection and i see some of the required ( or i guess recommended for part 91 usage) items for replacement and i wonder why? Have there been failures that have initiated them? I am somewhat familiar w the MB 4 cylinder TC engines in automobiles and they seem to run damn new forever ..
So , just curious about the flywheel and fuel railunits that are to be replaced at 600 hr??
User avatar
CFIDave
5 Diamonds Member
5 Diamonds Member
Posts: 2678
Joined: Wed Nov 07, 2012 3:40 pm
First Name: Dave
Aircraft Type: OTHER
Aircraft Registration: N333GX
Airports: KJYO Leesburg VA
Has thanked: 231 times
Been thanked: 1473 times

Re: 600 hr items

Post by CFIDave »

Austro engines (all of them: AE300 aka E4, and AE330 aka E4P) have always required the high-pressure fuel pumps to be replaced at 600 hours, presumably because they're so critical to engine operation, and because of the very high pressures required by the common fuel rail.

But I don't understand why the flywheels need to be replaced on DA62 AE330/E4P engines, but not on DA40 or DA42 Austro engines (which only need to be removed and inspected). There's only a 5% difference in power output/torque on the DA62's engines.
Epic Aircraft E1000 GX
Former DA40XLS, DA42-VI, and DA62 owner
ATP, CFI, CFI-I, MEI
User avatar
Deanrobert
2 Diamonds Member
2 Diamonds Member
Posts: 45
Joined: Sun Jan 06, 2019 3:16 am
First Name: Dean
Aircraft Type: DA62
Aircraft Registration: N801VA
Airports: SPI
Has thanked: 6 times
Been thanked: 5 times

Re: 600 hr items

Post by Deanrobert »

Thx Dave; I’m going to ask Diamond tech support . See what they say
User avatar
Davestation
4 Diamonds Member
4 Diamonds Member
Posts: 250
Joined: Tue Mar 12, 2019 7:49 pm
First Name: David
Aircraft Type: D-JET
Aircraft Registration: NDJET
Airports: KFTW
Has thanked: 103 times
Been thanked: 100 times

Re: 600 hr items

Post by Davestation »

CFIDave wrote: Tue Jan 18, 2022 11:03 pm But I don't understand why the flywheels need to be replaced on DA62 AE330/E4P engines, but not on DA40 or DA42 Austro engines (which only need to be removed and inspected). There's only a 5% difference in power output/torque on the DA62's engines.
What were your inspection failure rates on the 42s though historically? I never tallied it but my gut feeling is that 1/3 fail. If that's really the case then I can see why they'd say to just replace it if it makes it past the second round.
Post Reply