# NTSB MIA71DKW40: Hughes 269, N9421F, Lafollette, TN, March 25, 1971

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: March 25, 1971
- Place: Lafollette, TN · LAFOLLETTE, TN
- Location: 36.3717° N, 84.1256° W: Placed by OpenAirDocs: center of La Follette, TN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.3717&lon=-84.1256&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report December 20, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 160437
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA71DKW40
- Page: https://openairdocs.org/ntsb/MIA71DKW40

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1177  71/3/25    LAFOLLETTE,TENN     HUGHES 269          CR-  0  1  0  NONCOMMERCIAL             PRIVATE, AGE 49, 300
        TIME - 1715                    N9421F              PX-  0  0  0  PRACTICE                  TOTAL HOURS, 84 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          LAFOLLETTE,TENN             KNOXVILLE,TENN
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: WIRES/POLES                               IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           PILOT IN COMMAND - CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OBJECTS OR OBSTRUCTIONS
           WEATHER - LOW CEILING
           WEATHER - FOG
           WEATHER - SNOW
           TERRAIN - HIGH OBSTRUCTIONS
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OBSCURATION                                               200
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          3/4 MILE OR LESS                                         SNOW
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TYPE OF WEATHER CONDITIONS
          FOG                                                      IFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- PLT HIT PWR LINES.
```

## Aircraft

- Registration: [N9421F](https://openairdocs.org/deregistered/N9421F-1972-03-13), registration cancelled 1972-03-13, S/N 15-0153 (OpenAirDocs)
- Reported make and model: HUGHES 269
- Registry model: [Hughes 269B](https://openairdocs.org/model/hughes-269b) (registry code 4470502) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed

## Other investigations on N9421F (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 MIA70FKG41](https://openairdocs.org/ntsb/MIA70FKG41), Jun 24, 1970: Hughes 269B (N9421F), Atlanta, GA, 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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