# NTSB OAK74DVG46: Boeing A75, N66923, Knights Ldg, CA, April 17, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 17, 1974
- Place: Knights Ldg, CA · KNIGHTS LDG, CA
- Location: 38.7980° N, 121.7174° W: Placed by OpenAirDocs: center of Knights Landing, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.7980&lon=-121.7174&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 3, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 186152
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK74DVG46
- Page: https://openairdocs.org/ntsb/OAK74DVG46

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0995  74/4/17    KNIGHTS LDG,CALIF   BOEING A75          CR-  0  0  1  COMMERCIAL                AIRLINE TRANSPORT, AGE
        TIME - 1445                    N66923              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   42, 5165 TOTAL HOURS, 74
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - FARM STRIP
        DEPARTURE POINT             INTENDED DESTINATION
          KNIGHTS LDG,CALIF           LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER COMPENSATION FOR WIND CONDITIONS
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
        FACTOR(S)
           WEATHER - UNFAVORABLE WIND CONDITIONS
        WEATHER BRIEFING - UNKNOWN/NOT REPORTED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        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                  RELATIVE BEARING OF WIND
          NONE                                                     RIGHT QUARTERING HEAD WIND 023-067 DEGREES
        TEMPERATURE-F                                            WIND DIRECTION-DEGREES
           70                                                      200
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           15                                                      VFR
        TYPE OF FLIGHT PLAN
          NONE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - FERTILIZING (DUST)
          KIND OF CROP - RICE                                      TYPE OF CHEMICAL USED - DRY CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - NOT USED
          GOGGLES - USED                                           CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  30                  SWATH RUN-HOW FLOWN - CROSSWIND
        REMARKS- WIND GUSTING 25K.
```

## Aircraft

- Registration: [N66923](https://openairdocs.org/aircraft/N66923), registered now, S/N 75-2249, built 1941 (OpenAirDocs)
- Reported make and model: BOEING A75
- Registry model: [Boeing A75N1(PT17)](https://openairdocs.org/model/boeing-a75n1-pt17) (registry code 1380134) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Farm 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 19740417009669A](https://openairdocs.org/incident/19740417009669A), Apr 17, 1974: Boeing A75N1, Knights Ldg, CA, Substantial damage. Wind gusting 25K.

## Other investigations on N66923 (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 OAK71FVG67](https://openairdocs.org/ntsb/OAK71FVG67), Apr 15, 1971: Boeing A75N1 (N66923), Robbins, CA, substantial damage
- [NTSB OAK70D0023](https://openairdocs.org/ntsb/OAK70D0023), Apr 16, 1969: Boeing A75 (N66923), Robbins, CA, substantial damage
- [NTSB UNK64X2783](https://openairdocs.org/ntsb/UNK64X2783), Jul 12, 1964: Boeing A75N1 (N66923), Woodland, 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.