| Registration Letters | OY-ACO |
| Manufacturers's serial number | 166 |
| Year Built | 1947 |
| Registration Date | 1947.11.04 |
| Previous Identities | |
| Cancelled | |
| Fate |
| Type Designation | S.A.I. KZ VII U-4 Lærke |
| Manufacturer | Skandinavisk Aero Industri A/S |
| CoA | 268 |
| Issued | 1947.11.04 |
| Builder | Skandinavisk Aero Industri A/S |
| Place | Kastrup, Denmark |
| COR | 08862 |
| Issued | 1993.06.18 |
| Cancelled | |
| Owner | Peter Schmidt Nielsen |
| Town | Bylderup Bov |
| User |
| COR | 06655 |
| Issued | 1985.01.31 |
| Cancelled | 1993.06.18 |
| Owner | Holger Jensen |
| Town | Fredericia |
| User |
| COR | 05151 |
| Issued | 1979.07.09 |
| Cancelled | 1985.01.31 |
| Owner | Erik Olsson |
| Town | Randers |
| User |
| COR | 04236 |
| Issued | 1976.10.08 |
| Cancelled | 1979.07.09 |
| Owner | Vagn Aage Jensen (+1) |
| Town | København |
| User |
| COR | 00868 |
| Issued | 1962.05.15 |
| Cancelled | 1976.10.08 |
| Owner | Vagn Aage Jensen |
| Town | Åbenrå |
| User |
| COR | 00650 |
| Issued | 1960.02.05 |
| Cancelled | 1962.05.15 |
| Owner | Ingolf Nielsen |
| Town | Sønderborg |
| User |
| COR | 00369 |
| Issued | 1950.04.03 |
| Cancelled | 1960.02.05 |
| Owner | Sønderjyllands Flyveselskab |
| Town | Åbenrå |
| User |
| COR | 00302 |
| Issued | 1947.11.04 |
| Cancelled | 1950.04.03 |
| Owner | Det Danske Petroleums Aktieselskab |
| Town | København |
| User |
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