# NTSB SEA78DYP40: Cessna 188, N80770, Tilma, ID, July 17, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 17, 1978
- Place: Tilma, ID · TILMA, ID
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 26, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 140846
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA78DYP40
- Page: https://openairdocs.org/ntsb/SEA78DYP40

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2394  78/7/17    TILMA,ID            CESSNA 188          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 25, 2141
        TIME - 1830                    N80770              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 767 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          TEKOA,WA                    LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER IN-FLIGHT DECISIONS OR PLANNING
        FACTOR(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           TERRAIN - HIGH OBSTRUCTIONS
           WEATHER - HIGH DENSITY ALTITUDE
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        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                  TEMPERATURE-F
          NONE                                                      75
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - UNKNOWN/NOT REPORTED
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -HILLY
          ELEVATION-AREA BEING TREATED-FEET -  3000                SWATH RUN-HOW FLOWN - WIND CALM
         FIRE AFTER IMPACT
        REMARKS- SPRAY RUN INTO RISING TERRAIN WITH HEAVY LOAD. DENSITY ALT ABOUT 5000FT.
```

## Aircraft

- Registration: [N80770](https://openairdocs.org/deregistered/N80770-1998-10-13), registration cancelled 1998-10-13, S/N 17266738 (OpenAirDocs)
- Reported make and model: CESSNA 188
- Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (registry code 2072418) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## 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 19780717024559A](https://openairdocs.org/incident/19780717024559A), Jul 17, 1978: Cessna 188ACESSNA, Tilma, ID, Substantial damage. Spray run into rising terrain with heavy load. Density alt about ft.

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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