Single-engine piston

N77SG

Homebuilt Steen Skybolt "B"

Registered No accidents on file
Built
—
Serial
4585
Class
Single-engine piston
Engines
Lycoming O&VO-360 series
Status
Current as of October 2026
Registered owner
Timestone Corp (Corporation)
Based
Calexico, CA
Registration record

N77SG on the FAA register

Type
Homebuilt Steen Skybolt "B"
Serial
4585
Engines
Lycoming O&VO-360 series
Registered owner
Timestone Corp
Calexico, CA
Certificate issued
2023-04-04
Airworthiness date
1980-06-12
Registration expires
2030-04-30
Airworthiness class
Experimental · amateur-built
Mode S (hex)
AA6845
Mode S (octal)
52464105
Seats (type)
2
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2030-04-30
    Registration expires (renewal due).
  • 2023-04-04
    Certificate of registration issued as N77SG.
  • 1980-06-12
    Airworthiness date on the current FAA record (experimental category (amateur-built)).
Overview

About N77SG

N77SG is a Homebuilt Steen Skybolt "B", serial number 4585. The FAA register lists Timestone Corp as the registrant in Calexico, California. The current certificate of registration was issued on April 4, 2023 and expires on April 30, 2030.

The FAA aircraft reference file describes the type as a single-engine piston, one Lycoming O&VO-360 series engine and 2 seats. Its airworthiness certificate is experimental category (amateur-built), dated June 12, 1980.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N77SG.

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N77SG.

Sources: NTSB aviation accident database and CAROL case system, FAA preliminary accident & incident notices. Search accident records

Same state

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Data: FAA Aircraft Registry (October 2026), including deregistered aircraft; NTSB and FAA accident data; fyiAero listing history. Individual owners' names are shown to signed-in users and street addresses are never shown. Type figures are published specifications, not this aircraft's.