# NTSB MIA78DKT23: Hiller UH-12D, N501AG, Jupiter, FL, December 21, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: December 21, 1977
- Place: Jupiter, FL · JUPITER, FL
- Location: 26.9205° N, 80.1194° W: Placed by OpenAirDocs: center of Jupiter, FL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=26.9205&lon=-80.1194&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report April 28, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 143522
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA78DKT23
- Page: https://openairdocs.org/ntsb/MIA78DKT23

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4216  77/12/21   JUPITER,FL          HILLER UH-12D       CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 39, 1261
        TIME - 1050                    N501AG              PX-  0  0  2  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 120 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          JUPITER,FL                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           DITCHING                                                 LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
           MISCELLANEOUS ACTS,CONDITIONS - ANTI-ICING/DEICING EQUIPMENT-IMPROPER OPERATION OF/OR FAILED TO USE
           MISCELLANEOUS ACTS,CONDITIONS - ICE-CARBURETOR
        FACTOR(S)
           WEATHER - CONDITIONS CONDUCIVE TO CARB./INDUCTION SYSTEM ICING
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON WATER
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TYPE OF WEATHER CONDITIONS
          NONE                                                     VFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- WRECKAGE NOT RECOVERED FOLLOWING DITCHING,PILOT DID NOT USE CARB HEAT.
```

## Aircraft

- Registration: [N501AG](https://openairdocs.org/deregistered/N501AG-1981-05-07), registration cancelled 1981-05-07, S/N 1094 (OpenAirDocs)
- Reported make and model: HILLER UH-12D
- Registry model: [Hiller UH-12D](https://openairdocs.org/model/hiller-uh-12d) (registry code 4360118) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed

## 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 19771221042149A](https://openairdocs.org/incident/19771221042149A), Dec 21, 1977: Hiller UH12D, Jupiter, FL, Substantial damage. Wreckage not recovered following ditching,pilot did not use carb heat.

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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