# NTSB DCA79AA019: Dehavilland DHC-6, N383EX, Hyannis, MA, June 17, 1979

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: June 17, 1979
- Place: Hyannis, MA · HYANNIS, MA
- Location: 41.6529° N, 70.2828° W: Placed by OpenAirDocs: center of Hyannis, MA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.6529&lon=-70.2828&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal, 7 serious, 2 minor
- Status: Completed, report September 23, 1980
- Safety recommendations: Yes
- NTSB case key (mKey): 79645
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA79AA019
- Board report AAR8001 (PDF): https://www.ntsb.gov/investigations/AccidentReports/Reports/AAR8001.pdf
- Page: https://openairdocs.org/ntsb/DCA79AA019

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0027  79/6/17    HYANNIS,MA          DEHAVILLAND DHC-6   CR-  1  1  0  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 2248                    N383EX              PX-  0  6  2                            60, 25101 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            951 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - BARNSTABLE MUNI
        OPERATOR - AIR NEW ENGLAND
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          FLUSHING,NY                 HYANNIS,MA                   NEW BEDFORD,CT
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: TREES                                     LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER IFR OPERATION
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - PILOT FATIGUE
           WEATHER - LOW CEILING
           WEATHER - RAIN
           WEATHER - FOG
        WEATHER BRIEFING - BRIEFING RECEIVED-METHOD UNKNOWN
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OBSCURATION                                               200
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          3/4 MILE OR LESS                                         DRIZZLE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          FOG                                                       67
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          210                                                       10
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          IFR                                                      IFR
        REMARKS- PIC TAKING POLYTHIAZIDE,A HYPERTENSIVE MEDICATION,& ALLOPURINAL FOR GOUT.FLEW 9HRS IN LAST 24HR PD
```

## Aircraft

- Registration: [N383EX](https://openairdocs.org/deregistered/N383EX-2009-04-23), registration cancelled 2009-04-23, S/N 245, built 1969 (OpenAirDocs)
- Reported make and model: DEHAVILLAND DHC-6
- Registry model: [Dehavilland DHC-6 TWIN OTTER](https://openairdocs.org/model/dehavilland-dhc-6-twin-otter) (registry code 2802606) (OpenAirDocs)
- Registry engine: [Pratt & Whitney Canada PT6A-60A](https://openairdocs.org/engine/pratt-whitney-canada-pt6a-60a) (registry code 52043, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Engines: turbo prop
- Damage: Destroyed
- Airport: Barnstable Muni

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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