# NTSB LAX72FUM17: Bell 47G-2, N919SF, Chula Vista, CA, January 1, 1972

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: January 1, 1972
- Place: Chula Vista, CA · CHULA VISTA, CA
- Location: 32.6400° N, 117.0842° W: Placed by OpenAirDocs: center of Chula Vista, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.6400&lon=-117.0842&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report September 14, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 165291
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX72FUM17
- Page: https://openairdocs.org/ntsb/LAX72FUM17

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0253   72/1/1    CHULA VISTA,CALIF   BELL 47G-2          CR-  0  0  2  INSTRUCTIONAL             ATP,FLIGHT INSTR., AGE
        TIME - 1050                    N919SF              PX-  0  0  0  DUAL                      46, 4619 TOTAL HOURS, 169
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - BROWN
        DEPARTURE POINT             INTENDED DESTINATION
          CHULA VISTA,CALIF           LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            LANDING: TRAFFIC PATTERN-CIRCLING
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
        REMARKS- DMGD M/R BLADES. T/R BOOM SEPARATED. NO ENG MALFUNCTION FOUND.
```

## Aircraft

- Registration: [N919SF](https://openairdocs.org/deregistered/N919SF-2000-12-28), registration cancelled 2000-12-28, S/N 1695 (OpenAirDocs)
- Reported make and model: BELL 47G-2
- Registry model: [Bell 47G-2](https://openairdocs.org/model/bell-47g-2) (registry code 1181008) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Brown

## Other investigations on N919SF (3)

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 LAX97LA248](https://openairdocs.org/ntsb/LAX97LA248), Jul 21, 1997: Bell 47G-2 (N919SF), Buttonwillow, CA, destroyed. Probable cause: failure of the pilot to maintain adequate clearance from a utility pole (obstruction) during aerial application. The obstruction was a related factor.
- [NTSB LAX93LA021](https://openairdocs.org/ntsb/LAX93LA021), Oct 31, 1992: Bell 47G2 (N919SF), Gonzales, CA, destroyed. Probable cause: THE PILOT'S FAILURE TO MAINTAIN ADEQUATE CLEARANCE FROM THE WIRES.
- [NTSB LAX75DUQ22](https://openairdocs.org/ntsb/LAX75DUQ22), Jan 25, 1975: Bell 47G-2 (N919SF), Arroyo Grande, CA, substantial damage

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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