kep5niner
Pre-takeoff checklist
- Joined
- Oct 5, 2018
- Messages
- 402
- Display Name
- Pete
I’m the owner of a 1970 Cessna 414, and recently discovered a serious compliance issue with an Aspen Evolution EFD1000 installation that dates back to 2016.
That installation was done by an FAA Repair Station. They were later sold and is now operating with a different name, but under the same CRS number.
The Aspen unit installed is P/N 910-00001-001. I contacted Aspen Avionics this month about an unrelated question, and their tech support verified that this part number (-001) corresponds to the EFD1000 Pilot, which is certified only for Class I and II aircraft under STC SA10822SC.
Because the Cessna 414 is a pressurized Class III aircraft (MTOW >6,000#), Aspen confirmed that this unit is not certified or legal for installation in this airplane. The correct Class III-approved models are P/N 910-00001-003 (EFD1000 Pro Class III) or the EFD1000 C3.
After contacting the repair station, their maintenance manager acknowledged the prior installation but said no records remain from that period and emphasized that they can’t offer “warranty” coverage for work done nine years ago. He expressed regret if it was installed in error but questioned how the aircraft had “flown for nine years without an issue.”
My concern isn’t warranty—it’s airworthiness and regulatory compliance under Part 43 / 145, since the repair-station certificate itself is continuous and still active under the same operation.
I’ve documented everything, including Aspen’s written confirmation, and I’m working toward a compliant resolution—most likely an upgrade to a Class III-approved unit.
I’m posting this mainly to:
That installation was done by an FAA Repair Station. They were later sold and is now operating with a different name, but under the same CRS number.
The Aspen unit installed is P/N 910-00001-001. I contacted Aspen Avionics this month about an unrelated question, and their tech support verified that this part number (-001) corresponds to the EFD1000 Pilot, which is certified only for Class I and II aircraft under STC SA10822SC.
Because the Cessna 414 is a pressurized Class III aircraft (MTOW >6,000#), Aspen confirmed that this unit is not certified or legal for installation in this airplane. The correct Class III-approved models are P/N 910-00001-003 (EFD1000 Pro Class III) or the EFD1000 C3.
After contacting the repair station, their maintenance manager acknowledged the prior installation but said no records remain from that period and emphasized that they can’t offer “warranty” coverage for work done nine years ago. He expressed regret if it was installed in error but questioned how the aircraft had “flown for nine years without an issue.”
My concern isn’t warranty—it’s airworthiness and regulatory compliance under Part 43 / 145, since the repair-station certificate itself is continuous and still active under the same operation.
I’ve documented everything, including Aspen’s written confirmation, and I’m working toward a compliant resolution—most likely an upgrade to a Class III-approved unit.
I’m posting this mainly to:
- See if anyone else has encountered similar Aspen EFD1000 class-compliance issues, and
- Ask whether others have had success getting repair-station participation or FAA guidance in correcting legacy installations like this.
