N76HRLake Larry HARMON ROCKET II
Safety record in brief:No NTSB accidents or incidents since 19822 ADs may apply1 service difficulty report
Registration
FAA Aircraft Registry · Oct 17, 2026- Registered owner
- Headwaters Flying Service LLC
- Owner type
- LLC
- City, state
- Three Forks, MT
- Certificate issued
- Mar 24, 2023
- Expires
- Mar 31, 2030
- Airworthiness
- Experimental · Amateur Built
- Airworthiness date
- Sep 24, 1997
We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.
Airframe & engine
FAA Registry + type dataAirframe
- Manufacturer
- Lake Larry
- Model
- HARMON ROCKET II
- Serial number
- 74
- Aircraft type
- Fixed wing single engine
- Category
- Land
- Certification
- Not Type Certificated
- Seats
- 2
- Engines
- 1
- Max takeoff weight
- Up to 12,499 lb
- Mode S code
- AA3FEE
Engine
- Make and model
- Lycoming Io-540 Ser
- Type
- Reciprocating
- Power
- 300 hp
Total time and engine hours aren't public. They appear here once the owner adds logbooks.
Ownership history
Ownership history from FAA records- 2023 – nowHeadwaters Flying Service LLCThree Forks, MT · current
Individual owners are shown by city and state only.
Safety record
NTSB · Oct 15, 2026 · FAA ADs · Oct 17, 2026 · SDRs · Oct 16, 2026NTSB events (0)
No NTSB accidents or incidents found for this airframe since 1982.
ADs published since 1998 that may apply (2)
These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.
| AD | Subject | Effective | Applies to |
|---|---|---|---|
| 2005-19-11 | Lycoming Engines (Formerly Textron Lycoming) AEIO-360, IO-360, O-360, LIO-360, LO-360… | Oct 21, 2005 | Engine (IO-540 SER)Only with: Engines rated at 300 HP or lower, manufactured new, rebuilt, or overhauled after March 1, 1999, or that had a crankshaft installed after March 1, 1999. |
| 2004-05-24 | Lycoming Engines (Formerly Textron Lycoming) AEIO-540, IO-540, LTIO-540, O-540, and… | Mar 30, 2004 | Engine (IO-540 SER)Only with: Engines with crankshaft gear retaining bolts P/N STD-2209 installed; excludes O-540-F series engines subject to AD 99-03-05 with bolt not since replaced, engines with bolt installed at original assembly or replaced by Lycoming per SB 554 after November 10, 1998, engines with bolt from replacement kits 05K19987, 05K23325, 05K23326, 05K23327, 05K23335 or 05K23336, and engines with single-drive dual magnetos. |
AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.
Service Difficulty Reports (1)
Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.
- Navigation · encoder · malfunctionedJun 14, 1999
ATC REPORTED ENCODER WAS INACCURATE. REMOVED ENCODER AND SENT TO MANUFACTURER FOR REPAIRS. RECEIVED, RE-INSTALLED, AND PERFORMED CORRELATION TEST IAW FAR 91:413. ENCODER IS NOW REPORTING PROPERLY.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Sources
- FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 17, 2026
- NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
- FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 17, 2026
- FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026