# NTSB SEA80FYA11: Cassutt 3M, N11XR, Boise, ID, March 16, 1980

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: March 16, 1980
- Place: Boise, ID · BOISE, ID
- Location: 43.6135° N, 116.2035° W: Placed by OpenAirDocs: center of Boise, ID, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.6135&lon=-116.2035&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report April 22, 1980
- Report: Brief approved by the director
- NTSB case key (mKey): 132360
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA80FYA11
- Page: https://openairdocs.org/ntsb/SEA80FYA11

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0201  80/3/16  NR.BOISE,ID           CASSUTT 3M          CR-  0  1  0  MISCELLANEOUS             COMMERCIAL, FL.INSTR.,
        TIME - 1450                    N11XR               PX-  0  0  0  FERRY                     AGE 30, 3767 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            23 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          LAZY H RANCH,ID             ORCHARD,ID
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: WIRES/POLES                               IN FLIGHT: OTHER
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           POWERPLANT - IGNITION SYSTEM: SPARK PLUG
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER CLEARANCE-TOLERANCE
           MISCELLANEOUS ACTS,CONDITIONS - ERRATIC
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OBJECTS OR OBSTRUCTIONS
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
           MISCELLANEOUS ACTS,CONDITIONS - SUNGLARE
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING OFF AIRPORT
        REMARKS- ENG SPUTTERED. HIT PWR LINES 80-100FT AGL.
```

## Aircraft

- Registration: [N11XR](https://openairdocs.org/deregistered/N11XR-2011-03-09), registration cancelled 2011-03-09, S/N H-1, built 1971 (OpenAirDocs)
- Reported make and model: CASSUTT 3M
- Registry model: [Cassutt IIIM](https://openairdocs.org/model/cassutt-iiim) (registry code 19704G7) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Engines: reciprocating
- Damage: Destroyed

## 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 19800316005919A](https://openairdocs.org/incident/19800316005919A), Mar 16, 1980: Amtrsx CASSUTT1, Boise, ID, Destroyed. Engine rough. Hit wires trying to land in farm field. Nonstandard fouled spark plugs in engine.

## Other investigations on N11XR (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 SEA07FA264](https://openairdocs.org/ntsb/SEA07FA264), Sep 14, 2007: Tuttle Cassutt Iiim (N11XR), Reno, NV, destroyed, 1 fatal. Probable cause: The failure of the pilots of both aircraft to maintain an adequate visual lookout and clearance from one another during a low altitude aerial race.

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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