# NTSB DEN79FTE64: Hiller 12E, N400AH, Longmont, CO, July 24, 1979

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 24, 1979
- Place: Longmont, CO · LONGMONT, CO
- Location: 40.1682° N, 105.1005° W: Placed by OpenAirDocs: center of Longmont, CO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.1682&lon=-105.1005&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 5, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 134763
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN79FTE64
- Page: https://openairdocs.org/ntsb/DEN79FTE64

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3372  79/7/24  NR.LONGMONT,CO        HILLER 12E          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 37, 3807
        TIME - 1100                    N400AH              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 225 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         LONGMONT,CO                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: SWATH RUN
           HARD LANDING                                             IN FLIGHT: SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           PILOT IN COMMAND - MISMANAGEMENT OF FUEL
           MISCELLANEOUS ACTS,CONDITIONS - FUEL EXHAUSTION
        FACTOR(S)
           POWERPLANT - POWERPLANT-INSTRUMENTS: FUEL QUANTITY GAUGE
           MISCELLANEOUS ACTS,CONDITIONS - STUCK
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 3700                       KIND OF OPERATION - FERTILIZING (LIQUID)
          KIND OF CROP - BEANS                                     TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - SIDES                             TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  5000                SWATH RUN-HOW FLOWN - WIND CALM
```

## Aircraft

- Registration: [N400AH](https://openairdocs.org/deregistered/N400AH-2003-04-22), registration cancelled 2003-04-22, S/N 1177, built 1975 (OpenAirDocs)
- Reported make and model: HILLER 12E
- Registry model: [Hiller UH-12E](https://openairdocs.org/model/hiller-uh-12e) (registry code 4360122) (OpenAirDocs)
- Registry engine: [Lycoming TI0-540 series](https://openairdocs.org/engine/lycoming-ti0-540-series) (registry code 41533, turbo-prop) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

## 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 19790724021779A](https://openairdocs.org/incident/19790724021779A), Jul 24, 1979: Hiller UH12E, Johnstown, CO, Substantial damage. Ag pilot conducting spraying operation exhausted fuel and crashed during spray run.

## Other investigations on N400AH (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 DEN88LA046](https://openairdocs.org/ntsb/DEN88LA046), Jan 2, 1988: Hiller UH-12E (N400AH), Vernal, UT, substantial damage
- [NTSB DEN86LA016](https://openairdocs.org/ntsb/DEN86LA016), Nov 1, 1985: Hiller UH-12E (N400AH), Vernal, UT, substantial damage
- [NTSB DEN83LA204](https://openairdocs.org/ntsb/DEN83LA204), Aug 31, 1983: Hiller UH-12E (N400AH), Manning, ND, substantial damage
- [NTSB DEN81DTE08](https://openairdocs.org/ntsb/DEN81DTE08), Nov 17, 1981: Hiller UH12E (N400AH), Craig, CO, 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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