# Accident 19990412003949A: Amtr RV4, Red Bluff, CA, April 12, 1999

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: April 12, 1999, 09:15 local time
- Place: Red Bluff, CA
- Damage: Substantial damage
- Phase of flight: Fcd/Prec Ldg From Cruise
- Operating rules: General operating rules (Part 91)
- Location: 40.1309° N, 122.4304° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=40.1309&lon=-122.4304&mi=10
- Aircraft: N6420E, a cancelled registration (https://openairdocs.org/deregistered/N6420E-1999-08-02) (OpenAirDocs)
- Registry model: Parker Michael G RV-4 (registry code 05608QX, https://openairdocs.org/model/parker-michael-g-rv-4) (OpenAirDocs)
- Reported make and model: AMTR RV4
- Reported engine: LYC O360A4A
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 6,500 total, 700 in this make and model
- NTSB investigation: [NTSB LAX99LA165](https://openairdocs.org/ntsb/LAX99LA165) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19990412003949A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(TTY) ACFT WAS AT 3,000 FEET WHILE EN ROUTE WHEN IT LOST OIL PRESSURE AND THE ENGINE STOPPED, THE PILOT ATTEMPTED TO MAKE AN EMERGENCY LANDING IN A FIELD, THE ACFT STRUCK A HARD OBJECT ON LANDING, GROUND LOOPED, AND CAME TO REST IN A DITCH, OTHER CIRCUMSTANCES ARE UNKNOWN. (-23) DURING CRUISE FLIGHT, ENGINE LOST POWER DUE TO OIL LOSS.  PILOT WAS FORCED TO LAND.  DURING LANDING ONTO UNDEVELOPED TERRAIN, THE AIRCRAFT FLIPPED OVER, ZIG-ZAGGED AND COME TO REST.  AIRCRAFT SEVERELY DAMAGED BUT NO INJURIES TO PILOT.  PILOT REPORTED THE OIL COOLER RUPTURE. (.4) THE ENGINE OF THE AMATEUR BUILT, EXPERIMENTAL AIRCRAFT SEIZED AND STOPPED AFTER THE SEAM OF THE AUTOMOTIVE-TYPE OIL COOLER OPENED UP IN-FLIGHT, RESULTING IN LOSS OF THE ENGINE OIL SUPPLY AND OIL STARVATION OF THE ENGINE.  THE PILOT ATTEMPTED TO MAKE A FORCED LANDING IN A FIELD, HOWEVER, THE RIGHT MAIN LANDING GEAR ENTERED A HOLE AND THE AIRCRAFT CARTWHEELED.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB LAX99LA165](https://openairdocs.org/ntsb/LAX99LA165), Apr 12, 1999: Parker Vans RV-4 (N6420E), Red Bluff, CA, substantial damage. Probable cause: A crack which developed in the automotive-type oil cooler of the experimental, amateur built aircraft and permitted the engine oil supply to flow overboard.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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