# NTSB IAD77FIG10: Hughes 269B, N9483F, Gaithersburg, MD, January 23, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: January 23, 1977
- Place: Gaithersburg, MD · GAITHERSBURG, MD
- Location: 39.1486° N, 77.1951° W: Placed by OpenAirDocs: center of Gaithersburg, MD, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.1486&lon=-77.1951&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report March 30, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 156956
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD77FIG10
- Page: https://openairdocs.org/ntsb/IAD77FIG10

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0267  77/1/23    GAITHERSBURG,MD     HUGHES 269B         CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1030                    N9483F              PX-  0  0  0  DUAL                      AGE 34, 1984 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            12 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - MONTGOMERY ARPK
        DEPARTURE POINT             INTENDED DESTINATION
          GAITHERSBURG,MD             LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAKEOFF: RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
           DUAL STUDENT - FAILED TO MAINTAIN DIRECTIONAL CONTROL
```

## Aircraft

- Registration: [N9483F](https://openairdocs.org/deregistered/N9483F-1998-02-21), registration cancelled 1998-02-21, S/N 1260289 (OpenAirDocs)
- Reported make and model: HUGHES 269B
- Registry model: [Hughes 269B](https://openairdocs.org/model/hughes-269b) (registry code 4470502) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Montgomery Arpk

## 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 19770123001299A](https://openairdocs.org/incident/19770123001299A), Jan 23, 1977: Hughes 269B, Gaithersburg, MD, Substantial damage

## Other investigations on N9483F (2)

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 NYC95LA170](https://openairdocs.org/ntsb/NYC95LA170), Jul 22, 1995: Hughes 269B (N9483F), Honesdale, PA, destroyed. Probable cause: Corrosion and subsequent failure of the attaching lugs for the left (4H) shock strut assembly, which resulted in collapse of the landing gear/skid.
- [NTSB OAK72DVG36](https://openairdocs.org/ntsb/OAK72DVG36), Feb 21, 1972: Hughes 269B (N9483F), Winters, CA, 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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