# NTSB SEA81DYP42: Boeing A75N1, N56929, Orondo, WA, September 17, 1981

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 17, 1981
- Place: Orondo, WA · ORONDO, WA
- Location: 47.6260° N, 120.2254° W: Placed by OpenAirDocs: center of Orondo, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.6260&lon=-120.2254&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 20, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 123456
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA81DYP42
- Page: https://openairdocs.org/ntsb/SEA81DYP42

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2709  81/9/17    ORONDO,WA           BOEING A75N1        CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 34, 3597
        TIME - 1200                    N56929              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 1935 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - LUCKY BADGER
        DEPARTURE POINT             INTENDED DESTINATION
          ORONDO,WA                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAKEOFF: RUN
           COLLIDED WITH: BUILDING(S)                               TAKEOFF: RUN
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: TAILWHEEL ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           SYSTEMS - FLIGHT CONTROL SYSTEMS: RUDDER AND RUDDER TAB CONTROL SYSTEM
           MISCELLANEOUS ACTS,CONDITIONS - JAMMED
           PILOT IN COMMAND - FAILED TO ABORT TAKEOFF
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 2953                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - FRUIT ORCHARDS                            TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          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 -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  740                 SWATH RUN-HOW FLOWN - WIND CALM
        REMARKS- T/W POST CASTING,P/N AG-75-2703,FAILED AT LOWER ATTACH PT TO TRUNION.T/W JAMMED RUDDER FULL L POS.
```

## Aircraft

- Registration: [N56929](https://openairdocs.org/deregistered/N56929-2014-10-28), registration cancelled 2014-10-28, S/N 75-1511 (OpenAirDocs)
- Reported make and model: BOEING A75N1
- Registry model: [Boeing A75N1(PT17)](https://openairdocs.org/model/boeing-a75n1-pt17) (registry code 1380134) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Lucky Badger

## 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 19810917060039A](https://openairdocs.org/incident/19810917060039A), Sep 17, 1981: Boeing A75N1, Orondo, WA, Substantial damage. Veered off runway on takeoff roll. Struck apple bin and flipped over. Tailwheel trunion failed. Jammed rudder.

## Other investigations on N56929 (1)

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 SEA71DYG53](https://openairdocs.org/ntsb/SEA71DYG53), May 18, 1971: Boeing A75N (N56929), Waterville, WA, 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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