# Accident 19970613023279A: Robsin R22BETA, San Antonio, TX, June 13, 1997

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: June 13, 1997, 19:35 local time
- Place: San Antonio, TX
- Airport: Stinson Municipal Airport
- Damage: Substantial damage
- Phase of flight: Autorot Descent (Rotorcraft)
- Operating rules: General operating rules (Part 91)
- Operator: H2ES
- Location: 29.5398° N, 98.4896° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=29.5398&lon=-98.4896&mi=10
- Aircraft: N4041W (not matched to a registry record)
- Reported make and model: ROBSIN R22BETA
- Reported engine: LYC O320B2C
- People aboard: 2
- Fatal injuries: 0
- Pilot flight hours: 669 total, 512 in this make and model, 180 in the last 90 days
- NTSB investigation: [NTSB FTW97LA226](https://openairdocs.org/ntsb/FTW97LA226) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19970613023279A

## Narrative

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

(.4)THE FLIGHT INSTRUCTOR WAS INSTRUCTING THE STUDENT PILOT IN STRAIGHT-IN POWER RECOVERY AUTOROTATIONS TO THE CENTER SOD. THE STUDENT INITIATED THE MANEUVER FROM AN ALTITUDE OF 1,100 FEET MSL, AND AN AIRSPEED OF 65 KIAS, WITH THE ROTOR RPM IN THE 'GREEN.' DURING THE AUTOROTATION, AT 40 FEET AGL, THE STUDENT INITIATED A CYCLIC FLARE.  'AS THE FLARE CONTINUED, THE DESCENT RATE SLOWED.'  THE STUDENT 'STARTED TO APPLY FORWARD CYCLIC TO LEVEL THE HELICOPTER WHEN IT STARTED A LEFT YAW.'  THE FLIGHT INSTRUCTOR GOT ON THE CONTROLS TO ALIGN THE AIRCRAFT WITH THE LANDING DIRECTION, AND THE LOW ROTOR RPM WARNING HORN ACTIVATED.  HE 'ROLLED ON THE THROTTLE AND THE HELICOPTER YAWED QUICKLY TO THE RIGHT.' AFTER HE CORRECTED FOR THE YAW THE HELICOPTER 'FELL APPROXIMATELY 10 TO 15 FEET STRAIGHT DOWN.'  IT 'IMPACTED [THE GROUND] HARD TO WHERE THE SKIDS WERE SPREAD OUT AND THE SEATS WERE COLLAPSED DOWN.(.23) SEE NARRATIVE #FTW97LA226.

## 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 FTW97LA226](https://openairdocs.org/ntsb/FTW97LA226), Jun 14, 1997: Robinson R22 Beta (N4041W), San Antonio, TX, substantial damage. Probable cause: The flight instructor's inadequate supervision during the practice autorotation and his failure to maintain rotor RPM.

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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