# NTSB DEN71DTC04: Piper PA-18A, N9850D, Lingle, WY, June 9, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 9, 1971
- Place: Lingle, WY · LINGLE, WY
- Location: 42.1387° N, 104.3460° W: Placed by OpenAirDocs: center of Lingle, WY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.1387&lon=-104.3460&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report February 2, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 161426
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN71DTC04
- Page: https://openairdocs.org/ntsb/DEN71DTC04

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1907   71/6/9    LINGLE,WYO          PIPER PA-18A        CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 26, 812
        TIME - 0940                    N9850D              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 600 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          LINGLE,WYO                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL                                                    IN FLIGHT: PROCEDURE TURNAROUND
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  400                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - AFT OF PILOT                      TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  4300                SWATH RUN-HOW FLOWN - CROSSWIND
          PROCEDURE TURNAROUND - THIRD 1/3 TURN
        REMARKS- SPRAYING DOW 2-4-D
```

## Aircraft

- Registration: N9850D (not matched to a registry record)
- Reported make and model: PIPER PA-18A
- Category: Airplane
- Engines: reciprocating
- Damage: 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.

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