# NTSB SEA77FTA18: Piper PA-25, N7312Z, Brockway, MT, May 21, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 21, 1977
- Place: Brockway, MT · BROCKWAY, MT
- Location: 47.2992° N, 105.7644° W: Placed by OpenAirDocs: center of Brockway, MT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.2992&lon=-105.7644&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 16, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 158211
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA77FTA18
- Page: https://openairdocs.org/ntsb/SEA77FTA18

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1133  77/5/21    BROCKWAY,MT         PIPER PA-25         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 21, 271
        TIME - 0800                    N7312Z              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 20 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - HAGLAND RANCH
        DEPARTURE POINT             INTENDED DESTINATION
          BROCKWAY,MT                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL                                                    LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -   20                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  2700
        REMARKS- ACFT STALLED DURING TURN TO FINAL APPROACH.
```

## Aircraft

- Registration: [N7312Z](https://openairdocs.org/deregistered/N7312Z-2013-05-07), registration cancelled 2013-05-07, S/N 25-3259, built 1965 (OpenAirDocs)
- Reported make and model: PIPER PA-25
- Registry model: [Piper PA-25](https://openairdocs.org/model/piper-pa-25) (registry code 7102502) (OpenAirDocs)
- Registry engine: [Lycoming 0-540 series](https://openairdocs.org/engine/lycoming-0-540-series) (registry code 41532, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Hagland Ranch

## 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 19770521011839A](https://openairdocs.org/incident/19770521011839A), May 21, 1977: Cvac STCAPJC, MT, Substantial damage

## Other investigations on N7312Z (2)

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 SEA81DYA12](https://openairdocs.org/ntsb/SEA81DYA12), Jun 11, 1981: Piper PA-25 (N7312Z), Rockford, ID, substantial damage
- [NTSB SEA72DTA14](https://openairdocs.org/ntsb/SEA72DTA14), Mar 22, 1972: Piper PA-25 (N7312Z), Brusett, MT, 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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