# NTSB LAX82FA012: Robinson R22, N9073Q, Livermore, CA, November 11, 1981

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: November 11, 1981
- Place: Livermore, CA · LIVERMORE, CA
- Location: 37.6870° N, 121.7598° W: Placed by OpenAirDocs: center of Livermore, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.6870&lon=-121.7598&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed, report March 22, 1982
- Report: Brief approved by the director
- NTSB case key (mKey): 122622
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX82FA012
- Page: https://openairdocs.org/ntsb/LAX82FA012

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3569  81/11/11 NR.LIVERMORE,CA       ROBINSON R22        CR-  2  0  0  INSTRUCTIONAL             ATP,FLIGHT INSTR., AGE
        TIME - 1523                    N9073Q              PX-  0  0  0  DUAL                      44, 12200 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            750 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - LIVERMORE MUNI
        DEPARTURE POINT             INTENDED DESTINATION
         LIVERMORE,CA                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           UNDETERMINED                                             IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           MISCELLANEOUS - UNDETERMINED
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
         FIRE AFTER IMPACT
        REMARKS- M/R BLADE(S) HIT TAIL BOOM,TAIL SEPD.FND M/R BLADES BENT EXCESSIVELY UPWRD FM OVRLOAD.
```

## Aircraft

- Registration: [N9073Q](https://openairdocs.org/deregistered/N9073Q-2011-04-27), registration cancelled 2011-04-27, S/N 0227, built 1981 (OpenAirDocs)
- Reported make and model: ROBINSON R22
- Registry model: [Robinson Helicopter R22](https://openairdocs.org/model/robinson-helicopter-r22) (registry code 7640102) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed
- Airport: Livermore Muni

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19811111072959A](https://openairdocs.org/incident/19811111072959A), Nov 11, 1981: Robsin R22, Livermore, CA, Destroyed. Demonstrating autorotation to new student. Allowed RPM decay, blade droop caused main rotor tail boom strike.

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.

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