| N4139D | 1958 Helio H-391B Courier C/N 088Discuss this aircraft in community | 
| Manufacturer: | Helio | 
| Model: | H-391B Courier Search all Helio H-391B | 
| Year built: | 1958 | 
| Construction Number (C/N): | 088 | 
| Aircraft Type: | Fixed wing single engine | 
| Number of Seats: | 4 | 
| Number of Engines: | 1 | 
| Engine Type: | Reciprocating | 
| Engine Manufacturer and Model: | Lycoming GO-435C&D SER | 
| Registration Number: | N4139D | 
| Mode S (ICAO24) Code: | A4E2DC | 
| Certification Class: | Standard | 
| Certification Issued: | 2011-10-13 | 
| Air Worthiness Test: | 1958-06-17 | 
| Last Action Taken: | 2011-10-13 | 
| Current Status: | Valid | 
| Registration Type: | Individual | 
| Address: | Monroe, WA 98272 United States | 
| Region: | Northwest Mountain |