# NTSB LAX73DUG35: Aero Comdr A-9B, N7758V, Sunnymead, CA, February 19, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: February 19, 1973
- Place: Sunnymead, CA · SUNNYMEAD, CA
- Location: 33.9400° N, 117.2437° W: Placed by OpenAirDocs: center of Sunnymead, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.9400&lon=-117.2437&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report July 25, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 170460
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX73DUG35
- Page: https://openairdocs.org/ntsb/LAX73DUG35

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1521  73/2/19    SUNNYMEAD,CALIF     AERO COMDR A-9B     CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 55, 14500
        TIME - 0830                    N7758V              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 1215 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - DAVIS STRIP
        DEPARTURE POINT             INTENDED DESTINATION
          SUNNYMEAD,CALIF             LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: CRANKSHAFT
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           TERRAIN - WET,SOFT GROUND
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - FERTILIZING (DUST)
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - DRY CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT
        REMARKS- CRANKSHAFT FAILED,PROP & NR 1 CYL SEPARATED.
```

## Aircraft

- Registration: [N7758V](https://openairdocs.org/deregistered/N7758V-2017-02-04), registration cancelled 2017-02-04, S/N 1508, built 1969 (OpenAirDocs)
- Reported make and model: AERO COMDR A-9B
- Registry model: [Aero Commander CALLAIR A-9B](https://openairdocs.org/model/aero-commander-callair-a-9b) (registry code 0144206) (OpenAirDocs)
- Registry engine: [Lycoming TI0-540 series](https://openairdocs.org/engine/lycoming-ti0-540-series) (registry code 41533, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Davis Strip

## 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 19730219003539A](https://openairdocs.org/incident/19730219003539A), Feb 19, 1973: Airpts A9B, Sunnymead, CA, Substantial damage. Crankshaft failed,prop & nr 1 cyl separated.

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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