# Accident 19990914038509A: Amtr KR2, Mariposa, CA, September 14, 1999

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 14, 1999, 18:10 local time
- Place: Mariposa, CA
- Airport: Mariposa-Yosemite Airport
- Damage: Destroyed
- Phase of flight: To Init Climb(1st Pwr Reduct)
- Operating rules: General operating rules (Part 91)
- Location: 37.5109° N, 120.0395° W: Placed by OpenAirDocs at MARIPOSA-YOSEMITE (MPI), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.5109&lon=-120.0395&mi=10
- Aircraft: N71KN, a cancelled registration (https://openairdocs.org/deregistered/N71KN-2017-07-12) (OpenAirDocs)
- Registry model: Nye Kenneth G KR-2 (registry code 05648ZJ, https://openairdocs.org/model/nye-kenneth-g-kr-2) (OpenAirDocs)
- Registry engine: Revmaster 2100 (registry code 52550, https://openairdocs.org/engine/revmaster-2100) (OpenAirDocs)
- Reported make and model: AMTR KR2
- Reported engine: AMTRVW VW2100VOLKS
- People aboard: 1
- Fatal injuries: 1
- Pilot flight hours: 322 total, 95 in this make and model, 74 in the last 90 days
- NTSB investigation: [NTSB LAX99LA303](https://openairdocs.org/ntsb/LAX99LA303) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19990914038509A

## Narrative

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

FOLLOWING A LOCAL AREA FLIGHT THE AMATEUR-BUILT AIRPLANE RETURNED TO THE DEPARTURE AIRPORT AND ENTERED THE TRAFFIC PATTERN. FOLLOWING A TOUCH-AND-GO LANDING, THE AIRPLANE CLIMBED TO ABOUT 200 FEET AGL OVER THE DEPARTURE END OF THE RUNWAY AND MADE AN ABRUPT RIGHT ROLL TO NEARLY A 90-DEGREE BANK ANGLE.  IT THEN TURNED TO A NORTHERLY HEADING, AND, AS IT TURNED, DESCENDED IN A WINGS VERTICAL ATTITUDE INTO TERRAIN NEAR THE RUNWAY END.  THREE PERSONS REPORTED THEY HAD SEEN THE PILOT PERFORM THE STEEP RIGHT TURN DEPARTURE MANEUVER ON PREVIOUS OCCASIONS.  ONE WITNESS REPORTED THAT THE ENGINE WAS OPERATING SMOOTHLY DURING THE TOUCH-AND-GO AND UNTIL IMPACT; A SECOND REPORTED THE ENGINE WAS OPERATING SMOOTHLY DURING THE TOUCH-AND-GO BUT DID NOT RECALL THE ENGINE SOUND DURING THE DESCENT TO IMPACT; AND A THIRD WITNESS REPORTED THAT THE ENGINE 'SPUTTERED' DURING THE CLIMB AND DESCENT TO IMPACT.  THE AIRCRAFT IMPACTED IN A STEEP NOSE DOWN ATTITUDE.  THERE WAS FUEL SPILLING FROM THE AIRCRAFT AND THE AIRCRAFT'S FLIGHT CONTROLS WERE CONTINUOUS AT THE ACCIDENT SITE.  NO HEAVY AIRCRAFT WERE REPORTED TO HAVE PRECEDED THE AIRCRAFT ON THE DEPARTURE RUNWAY.

## 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 LAX99LA303](https://openairdocs.org/ntsb/LAX99LA303), Sep 15, 1999: Nye KR-2 (N71KN), Mariposa, CA, destroyed, 1 fatal. Probable cause: The pilot's failure to maintain an adequate airspeed margin while performing an intentional steep right bank turning maneuver, which resulted in a stall/mush and descent into terrain.

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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