# NTSB UNK64X0685: Beechcraft B35, N7973D, Friendly, MD, February 24, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: February 24, 1964
- Place: Friendly, MD · FRIENDLY, MD
- Location: 38.7603° N, 76.9670° W: Placed by OpenAirDocs: center of Friendly, MD, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.7603&lon=-76.9670&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Brief approved by the director
- NTSB case key (mKey): 185260
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X0685
- Page: https://openairdocs.org/ntsb/UNK64X0685

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0463  64/2/24    FRIENDLY MD         BEECHCRAFT B35      CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 53, 3000
        TIME - 1400                    N7973D              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 1100 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           WHEELS-UP                                                TAKEOFF: ABORTED
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
          MISC-UNKNOWN PERSON TAMPERED WITH AIRCRAFT.
        FACTOR(S)
           PERSONNEL - MISCELLANEOUS-PERSONNEL: OTHER
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
        REMARKS- TAMPERING RESULTED IN INSTABILITY IN AIR.
```

## Aircraft

- Registration: [N7973D](https://openairdocs.org/deregistered/N7973D-1988-04-06), registration cancelled 1988-04-06, S/N D5233 (OpenAirDocs)
- Reported make and model: BEECHCRAFT B35
- Registry model: [Beech H35](https://openairdocs.org/model/beech-h35) (registry code 1151520) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N7973D (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 MKC87LA119](https://openairdocs.org/ntsb/MKC87LA119), Jun 5, 1987: Beech B35 (N7973D), Keokuk, IA, 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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