Single-engine piston

N844SP

2006 Homebuilt Harmon Rocket II

Registered No accidents on file
Built
2006
Serial
183
Class
Single-engine piston
Engines
Lycoming IO-540-D4A5
Status
Current as of October 2026
Registered owner
Six Passes Aviation LLC (LLC)
Based
Bozeman, MT
Registration record

N844SP on the FAA register

Type
2006 Homebuilt Harmon Rocket II
Serial
183
Engines
Lycoming IO-540-D4A5
Registered owner
Six Passes Aviation LLC
Bozeman, MT
Certificate issued
2023-02-09
Airworthiness date
2023-07-10
Registration expires
2030-02-28
Airworthiness class
Experimental · amateur-built
Mode S (hex)
AB9053
Mode S (octal)
52710123
Seats (type)
2
Weight class
up to 12,499 lb
Kit
Harmon Rocket Llc HARMON ROCKET II
Status
Current as of October 2026
Registry history

Timeline

  • 2030-02-28
    Registration expires (renewal due).
  • 2023-07-10
    Airworthiness date on the current FAA record (experimental category (amateur-built)).
  • 2023-02-09
    Certificate of registration issued as N844SP to the current registrant.
  • 2011-10-24
    N844SP previously assigned to a Robinson R44 RAVEN I Piston Helicopters / R44 Cadet / R44 RAVEN II Piston Helicopters (s/n 1724); cancelled.
  • 2008-09-22
    N844SP previously assigned to a Cessna 172S Skyhawk SP / 172SP Skyhawk SP / 172 Skyhawk (s/n 172S8751); cancelled.
  • 2006
    Manufactured (2006).
Overview

About N844SP

N844SP is a 2006 Homebuilt Harmon Rocket II, serial number 183. The FAA register lists Six Passes Aviation LLC as the registrant in Bozeman, Montana. The current certificate of registration was issued on February 9, 2023 and expires on February 28, 2030.

The FAA aircraft reference file describes the type as a single-engine piston, one Lycoming IO-540-D4A5 engine and 2 seats. Its airworthiness certificate is experimental category (amateur-built), dated July 10, 2023.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N844SP.

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N844SP.

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

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Browse: Aircraft registered in Montana· Registry by state· FAA registry stats

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.