# NTSB DIA69D0091: Hughes 269B, N9474F, Washington, DC, October 15, 1968

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: October 15, 1968
- Place: Washington, DC · WASHINGTON, DC
- Location: 38.8951° N, 77.0364° W: Placed by OpenAirDocs: center of Washington, DC, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.8951&lon=-77.0364&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report December 24, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 107973
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DIA69D0091
- Page: https://openairdocs.org/ntsb/DIA69D0091

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3729  68/10/15   WASHINGTON,DC       HUGHES 269B         CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, AGE 36, 7000
        TIME - 0800                    N9474F              PX-  0  0  0  POLICE PATROL             TOTAL HOURS, 3500 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - WASHINGTON NATL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: PARKED AIRCRAFT                           LANDING: POWER-ON LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED CLEARANCE
        REMARKS- M/R OF HUGHES N9474F STRUCK M/R OF BELL N261MV,SUBST DAMAGE.
```

## Aircraft

- Registration: [N9474F](https://openairdocs.org/deregistered/N9474F-2005-03-08), registration cancelled 2005-03-08, S/N 116-0278, built 1966 (OpenAirDocs)
- Reported make and model: HUGHES 269B
- Registry model: [Hughes 269B](https://openairdocs.org/model/hughes-269b) (registry code 4470502) (OpenAirDocs)
- Registry engine: [Lycoming I0360 series](https://openairdocs.org/engine/lycoming-i0360-series) (registry code 41515, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Washington Natl

## Other investigations on N9474F (4)

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 SEA95LA112](https://openairdocs.org/ntsb/SEA95LA112), Jun 4, 1995: Hughes 269B (N9474F), Caldwell, ID, destroyed. Probable cause: THE PILOT'S FAILURE TO MAINTAIN CLEARANCE FROM POWER LINES. FACTORS INCLUDE SUNGLARE ENCOUNTERED WHEN HE TURNED INTO THE SUN.
- [NTSB SEA93IA073](https://openairdocs.org/ntsb/SEA93IA073), Mar 5, 1993: Hughes 269B (N9474F), Mcminnville, OR, incident, minor damage. Probable cause: AN INFLIGHT LOSS OF CONTROL, AND INADEQUATE REMEDIAL ACTION. FACTORS INCLUDE A TAILWIND, AND GUSTS.
- [NTSB SEA92LA005](https://openairdocs.org/ntsb/SEA92LA005), Oct 12, 1991: Hughes 269B (N9474F), Hillsboro, OR, substantial damage. Probable cause: THE FAILURE TO MAINTAIN ROTOR RPM. FACTORS INCLUDE INADEQUATE PREFLIGHT PLANNING, OVERCONFIDENCE IN AIRCRAFT'S ABILITY, AND NON-SUITABLE TERRAIN.
- [NTSB DIA68A0001](https://openairdocs.org/ntsb/DIA68A0001), Jul 14, 1967: Hughes 269B (N9474F), Silver Spring, MD, 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.