LAX98LA026 · Striplin Aircraft Corporation LONE RANGER SLVR CLD LONE RANGE
Striplin Aircraft Corporation LONE RANGER SLVR CLD LONE RANGE · Accident: airframe, component or system failure en route
From Agua Dulce Airpark (L70) to Leona Valley, CA
Event
- NTSB case
- LAX98LA026
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- 0
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Striplin Aircraft Corporation LONE RANGER SLVR CLD LONE RANGE
- Aircraft type
- Striplin LONE RANGER SLVR CLD
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N4478Y
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Agua Dulce Airpark (L70), CATo Leona Valley, CA
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- En route · cruise
- First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Airframe, component or system failure
- Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
- Stall/mush
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Destroyed
Cause areas
- Pilot in command › Airspeed(vs), not maintained
- Pilot in command › Stall/mush, inadvertent
- Propeller system/drive assembly › Disconnected
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot stated that about 500 feet AGL the engine began to shake violently. His attempts to reduce the vibration by reducing the power were unsuccessful. He did not have enough altitude to return to the airport, and performed a forced landing to a vacant field. A flight crew from the Los Angeles County Sheriff's Department responded to the accident site and interviewed the pilot. He reported that the engine began to lose power after takeoff and he headed toward a field just south of the crash site. The pilot stated that he was too high and fast to land in the field and he turned around to land downwind. He said that at 30 feet AGL, the airplane stalled, fell to the ground, and nosed over. Witnesses reported that they heard an aircraft over fly their homes producing strange noises. They saw the aircraft make an abrupt turn to land and the landing gear struck the ground. The gear collapsed and the aircraft nosed over onto its back. The pilot/owner/builder reported that the drive belt had rolled forward out of the pulley in the belt reduction drive unit, which induced the vibration and caused a loss of drive power to the propeller.
Probable cause
Failure of the propeller system/drive assembly, and the pilot's failure to maintain flying speed, which resulted in a stall and subsequent impact with the ground. Inadequate maintenance/inspection of the propeller system was a contributing factor.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record LAX98LA026
- Event ID
- 20001208X09069
- Case number
- LAX98LA026
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: 85b810049923c15ee960927468e359c410d2feb0410fc3cc82bfe3d6ff67df39; retrieved 2026-09-21T21:05:50.564Z.