| Registration Letters | OY-ATJ |
| Manufacturers's serial number | 186 |
| Year Built | 1948 |
| Registration Date | 1977.08.12 |
| Previous Identities | O-623 63-623 |
| Cancelled | |
| Fate |
| Type Designation | S.A.I. KZ VII U-4 Lærke |
| Manufacturer | Skandinavisk Aero Industri A/S |
| CoA | 1676 |
| Issued | 1977.08.12 |
| Builder | Skandinavisk Aero Industri A/S |
| Place | Kastrup, Denmark |
| COR | 15995 |
| Issued | 2010.03.23 |
| Cancelled | |
| Owner | Danmarks Flymuseum |
| Town | Stauning |
| User |
| COR | 14581 |
| Issued | 2005.06.08 |
| Cancelled | 2010.03.23 |
| Owner | Flyvestation Skrydstrup Svæveflyveklub |
| Town | Vojens |
| User |
| COR | 04531 |
| Issued | 1977.08.12 |
| Cancelled | 2005.06.08 |
| Owner | Flyvematerielkommandoen |
| Town | Værløse |
| User | Flyvestation Skrydstrup Svæveflyveklub |
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