# NTSB LAX67D0291: Porterfield LP-65, N41658, Aqua Dulce, CA, February 5, 1967

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: February 5, 1967
- Place: Aqua Dulce, CA · AQUA DULCE, CA
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report July 10, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 118869
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX67D0291
- Page: https://openairdocs.org/ntsb/LAX67D0291

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0404   67/2/5    AQUA DULCE,CALIF    PORTERFIELD LP-65   CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 24, 183
        TIME - 1130                    N41658              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 6 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - AQUA DULCE AIRPRK
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
        FACTOR(S)
           WEATHER - DOWNDRAFT,UPDRAFTS
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING OFF AIRPORT
                                  ADVERSE/UNFAVORABLE WEATHER
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  WIND DIRECTION-DEGREES
          NONE                                                      45
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           15                                                      VFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- ACFT ENCOUNTERED DOWNDRAFTS DURING CLIMB AFTER TAKEOFF TOWARD RISING TERRAIN.
```

## Aircraft

- Registration: [N41658](https://openairdocs.org/deregistered/N41658-1971-01-12), registration cancelled 1971-01-12, S/N 1038, built 1941 (OpenAirDocs)
- Reported make and model: PORTERFIELD LP-65
- Registry model: [Porterfield LP-65](https://openairdocs.org/model/porterfield-lp-65) (registry code 6480124) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Aqua Dulce Airprk

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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