# NTSB OAK75DVG32: Grumman G-164A, N982X, Knights Ldg, CA, October 30, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: October 30, 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: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report December 18, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 142524
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK75DVG32
- Page: https://openairdocs.org/ntsb/OAK75DVG32

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3522  74/10/30 NR.KNIGHTS LDG,CALIF  GRUMMAN G-164A      CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 32, 6500
        TIME - 1000                    N982X               PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 1000 IN
                                       DAMAGE-DESTROYED    OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - UNNAMED STRIP
        DEPARTURE POINT             INTENDED DESTINATION
         KNIGHTS LDG,CALIF            LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           COLLIDED WITH: TREES                                     LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: BLOWER,IMPELLER ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           TERRAIN - HIGH OBSTRUCTIONS
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 5500                       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 - USED
          CRASH HELMET - AVAILABLE USED                            COCKPIT CRASHPAD - INSTALLED
          CRASH BAR - INSTALLED                                    TANK/HOPPER-LOCATION - FORWARD OF PILOT
        REMARKS- BLOWER IMPELLER FAILED.
```

## Aircraft

- Registration: [N982X](https://openairdocs.org/deregistered/N982X-2003-12-11), registration cancelled 2003-12-11, S/N 496, built 1968 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164A
- Registry model: [Grumman G-164A](https://openairdocs.org/model/grumman-g-164a) (registry code 3952704) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Unnamed 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 19741030037799A](https://openairdocs.org/incident/19741030037799A), Oct 30, 1974: Grumav G164A, Knights Ldg, CA, Destroyed. Blower impeller failed.

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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