# NTSB LAX81DUJ81: Ayers S2R, N4025K, Poston, AZ, September 27, 1981

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 27, 1981
- Place: Poston, AZ · POSTON, AZ
- Location: 33.9921° N, 114.4045° W: Placed by OpenAirDocs: center of Poston, AZ, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.9921&lon=-114.4045&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 April 13, 1982
- Report: Brief approved by the director
- NTSB case key (mKey): 122682
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX81DUJ81
- Page: https://openairdocs.org/ntsb/LAX81DUJ81

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3545  81/9/27  NR.POSTON,AZ          AYERS S2R           CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 41, 7000
        TIME - 0300                    N4025K              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 2500 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, INSTRUMENT RATED.
        NAME OF AIRPORT - DIRT STRIP
        DEPARTURE POINT             INTENDED DESTINATION
         POSTON,AZ                    LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: MASTER AND CONNECTING RODS
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           POWERPLANT - LUBRICATING SYSTEM: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - OBSTRUCTED
           MISCELLANEOUS ACTS,CONDITIONS - LACK OF LUBRICATION-SPECIFIC PART,NOT SYSTEM
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        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 - UNKNOWN/NOT REPORTED
          KIND OF CROP - UNKNOWN/NOT REPORTED                      TYPE OF CHEMICAL USED - UNKNOWN/NOT REPORTED
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 TANK/HOPPER-LOCATION - UNKNOWN/NOT REPORTED
          SWATH RUN-HOW FLOWN - UNKNOWN/NOT REPORTED
        REMARKS- SILVER PLATING SEPD FM MASTER ROD BRG,CVRD OIL PASSAGES AT CRANK PIN.LNDD,DIRT RD,HIT RAISED X-ING
```

## Aircraft

- Registration: N4025K (not matched to a registry record)
- Reported make and model: AYERS S2R
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Dirt 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 19810927051829A](https://openairdocs.org/incident/19810927051829A), Sep 27, 1981: Ayres S2R, Poston, AZ, Substantial damage. Rough engine and red line oil temp during ag operation. Crash-landed. Master rod bearing failure and oil starvation

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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