# NTSB IAD70D0068: Beech 35-A33, N486T, Wash Natl Apt, DC, August 30, 1969

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 30, 1969
- Place: Wash Natl Apt, DC · WASH NATL APT, DC
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report May 5, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 155927
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD70D0068
- Page: https://openairdocs.org/ntsb/IAD70D0068

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3879  69/8/30    WASH NATL APT,DC    BEECH 35-A33        CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 50, 557
        TIME - 1445                    N486T               PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 151 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - WASHINGTON NATL
        DEPARTURE POINT             INTENDED DESTINATION
          CINCINNATTI,OHIO            WASH NATL APT,DC
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO EXTEND LANDING GEAR
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - CHECKLIST-FAILED TO USE
           AIRFRAME - LANDING GEAR: LANDING GEAR WARNING AND INDICATING COMPONENTS
        REMARKS- GR WARNING HORN INOPERATIVE.
```

## Aircraft

- Registration: [N486T](https://openairdocs.org/deregistered/N486T-2018-07-19), registration cancelled 2018-07-19, S/N CD-311, built 1961 (OpenAirDocs)
- Reported make and model: BEECH 35-A33
- Registry model: [Beech 35-A33](https://openairdocs.org/model/beech-35-a33) (registry code 1151404) (OpenAirDocs)
- Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Washington Natl

## Other investigations on N486T (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 ERA18FA146](https://openairdocs.org/ntsb/ERA18FA146), May 13, 2018: Beech 35A33 (N486T), Jacksonville, AL, destroyed, 1 fatal. Probable cause: The pilot/mechanic's inadequate inspection of the exhaust system, including the left muffler and heat exchanger, which precluded his detection of preexisting cracks and led to a missed opportunity to…

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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