(Sept. 1, 2005) To better understand the impact of European Aviation Safety Agency (EASA) Executive Director Decision (ED) 2004/04/CF, ARSA conducted an informal survey to determine the number of DER (8110-3s) repairs currently in existence.
The survey asked five simple questions:
- Are you an EASA Part 145 approved Repair Station?
- Are you located in the United States?
- Are you located in the European Union?
- Are you located outside the United States and the European Union?
- How many DER-approved repairs (8110-3s) does your repair station hold?
ARSA received 195 responses identifying in excess of 26,000 DER approved repairs. This matrix provides a complete breakout of the data collected.
| Question |
Yes |
No |
Total |
| Q1. Are you an EASA Part 145 Approved Repair Station? |
183 |
12 |
195 |
|
Number of DER approved repairs associated with Q1. |
25,857 |
169 |
26,026 |
| Q2. Are you located in the U.S.? |
177 |
18 |
195 |
|
Number of DER approved repairs associated with Q2. |
19,763 |
6,263 |
26,026 |
| Q3. Are you located in the European Union (E.U.)? |
6 |
189 |
195 |
|
Number of DER approved repairs associated with Q3. |
2,318 |
23,708 |
26,026 |
| Q4. Are you located outside of the U.S. and the E.U.? |
11 |
184 |
195 |
|
Number of DER approved repairs associated with Q4. |
3,945 |
22,081 |
26,026 |
It should be noted that some responses indicate answers like 1,000’s, more than 1,500 per year, etc. In those cases ARSA took a conservative approach and only utilized the base number.
If the data is extrapolated the potential number of DER approved repairs for 1,250 EASA Part 145 approved repair stations is 176,619.
More from ARSA
On Oct. 14, ARSA presented an online training session introducing the key definitions in 49 CFR tied to hazardous materials requirements for maintenance providers in 14 CFR. The level 1…
Read More
On Nov. 10, ARSA will present a new addition to its list of human factors training sessions reviewing the June 10, 1990 explosive decompression of British Airways flight 5390.
The…
Read More
ARSA has learned that dozens of United Kingdom Civil Aviation Authority (UK CAA) Part-145 certificates issued to U.S. repair stations are at risk of lapsing because renewal applications have not…
Read More
ARSA calls on persons holding delegated authority from the FAA to respond to this “quick question” survey. Data collected through this effort will support ongoing efforts to assert designee due…
Read More
October 14, 2026 | Categories:
Act Now,
ARSA News & Updates
ARSA’s Sarah MacLeod, Christian Klein, and Brett Levanto take (a little more than) 10 minutes to react to an FAA blog post (yes…a blog post) with warnings wrapped in opportunity…
Read More
