# NTSB SEA70A0006: Cessna 210D, N3735Y, Boise, ID, July 30, 1969

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: July 30, 1969
- 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: Fatal
- Injuries: 6 fatal
- Status: Completed, report November 24, 1969
- Report: Brief approved by the director
- NTSB case key (mKey): 164345
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA70A0006
- Page: https://openairdocs.org/ntsb/SEA70A0006

## NTSB brief (aircraft 2)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2481  69/7/30    BOISE,ID            BEECH V35           CR-  1  0  0  NONCOMMERCIAL             PRIVATE, AGE 49, UNK/NR
        TIME - 0822                    N9550Q              PX-  3  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, UNK/NR IN
                                       DAMAGE-DESTROYED    OT-  2  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - BRADLEY
        DEPARTURE POINT             INTENDED DESTINATION
          SMILEY CREEK,ID             BOISE,ID
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OTHER AIRCRAFT
           PERSONNEL - MISCELLANEOUS-PERSONNEL: PILOT OF OTHER AIRCRAFT
         SPECIAL DATA
          SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-SMALL US GEN.AV.
          CONTROLLING AGENCY - NO CONTROL                          RADAR CTL/SURVEILLANCE - NOT UNDER RADAR CONTACT
          TRAFFIC ADVISORY ISSUED - NONE                           CONTROLLED/UNCONTROLLED AIRPORT - UNCONTROLLED AIRPORT
          CONTROL ZONE/AREA - YES                                  HORIZONTAL COLLISION ANGLE-DEGREES -   145
          EVASIVE ACTION TAKEN - UNKNOWN/NOT REPORTED              ANTI-COLLISION LIGHTS - INSTALLED,OPERATION UNKNOWN
         FIRE AFTER IMPACT
```

## NTSB brief (aircraft 1)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2481  69/7/30    BOISE,ID            CESSNA 210D         CR-  1  0  0  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 0822                    N3735Y              PX-  1  0  0  PLEASURE/PERSONAL TRANSP  AGE 51, 7677 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  4  0  0                            UNK/NR IN TYPE,
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - BRADLEY
        DEPARTURE POINT             INTENDED DESTINATION
          SMILEY CREEK,ID             BOISE,ID
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OTHER AIRCRAFT
           PERSONNEL - MISCELLANEOUS-PERSONNEL: PILOT OF OTHER AIRCRAFT
         SPECIAL DATA
          SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-SMALL US GEN.AV.
          CONTROLLING AGENCY - APPROACH CONTROL LANDING            RADAR CTL/SURVEILLANCE - NOT UNDER RADAR CONTACT
          TRAFFIC ADVISORY ISSUED - NONE                           CONTROLLED/UNCONTROLLED AIRPORT - UNCONTROLLED AIRPORT
          CONTROL ZONE/AREA - YES                                  HORIZONTAL COLLISION ANGLE-DEGREES -   217
          VERTICAL COLLISION ANGLE-DEGREES -  0                    EVASIVE ACTION TAKEN - NO
          ANTI-COLLISION LIGHTS - INSTALLED,OPERATION UNKNOWN
        REMARKS- ALT ESTIMATED 10000 TO 1500 FT AGL BY OBSERVERS.
```

## Aircraft 1

- Registration: [N3735Y](https://openairdocs.org/deregistered/N3735Y-1971-01-15), registration cancelled 1971-01-15, S/N 21058235 (OpenAirDocs)
- Reported make and model: CESSNA 210D
- Registry model: [Cessna 210D](https://openairdocs.org/model/cessna-210d) (registry code 2073414) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Bradley

## Aircraft 2

- Registration: [N9550Q](https://openairdocs.org/deregistered/N9550Q-1970-07-28), registration cancelled 1970-07-28, S/N D-8197 (OpenAirDocs)
- Reported make and model: BEECH V35
- Registry model: [Beech V35](https://openairdocs.org/model/beech-v35) (registry code 1151538) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Bradley

## Other investigations on N3735Y (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 SEA69F0085](https://openairdocs.org/ntsb/SEA69F0085), Sep 4, 1968: Cessna 210 (N3735Y), Boise, ID, 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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