# NTSB ANC74DAD14: Hiller Acft UH-12E, N5352V, Ketchikan, AK, March 21, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 21, 1974
- Place: Ketchikan, AK · KETCHIKAN, AK
- Location: 55.3571° N, 131.6746° W: Placed by OpenAirDocs: center of Ketchikan, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=55.3571&lon=-131.6746&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report June 10, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 124373
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC74DAD14
- Page: https://openairdocs.org/ntsb/ANC74DAD14

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1138  74/3/21  NR.KETCHIKAN,ALAS     HILLER ACFT UH-12E  CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, AGE 29, 3848
        TIME - 1445                    N5352V              PX-  0  0  0  DUAL                      TOTAL HOURS, 3595 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, INSTRUMENT RATED.
        NAME OF AIRPORT - TEMSCO HELIPORT
        DEPARTURE POINT             INTENDED DESTINATION
         KETCHIKAN,ALAS               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: POWER-ON DESCENT
           COLLISION WITH GROUND/WATER: CONTROLLED                  LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
           TERRAIN - OTHER
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON WATER
        REMARKS- PIC DEMON OF SETTLING WITH PWR RESULTED IN MAIN ROTOR BLADE SEVERING TAIL ROTOR SYS.LND IN COVE.
```

## Aircraft

- Registration: [N5352V](https://openairdocs.org/deregistered/N5352V-2008-09-24), registration cancelled 2008-09-24, S/N 2027, built 1959 (OpenAirDocs)
- Reported make and model: HILLER ACFT UH-12E
- Registry model: [Hiller UH-12E](https://openairdocs.org/model/hiller-uh-12e) (registry code 4360122) (OpenAirDocs)
- Registry engine: [Lycoming VO-540 series](https://openairdocs.org/engine/lycoming-vo-540-series) (registry code 41534, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Temsco Heliport

## 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 19740321010799A](https://openairdocs.org/incident/19740321010799A), Mar 21, 1974: Hiller UH12E, Ketchikan, AK, Substantial damage. PIC demon of settling with pwr resulted in main rotor blade severing tail rotor sys. Lnd in cove.

## Other investigations on N5352V (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 ANC75AA001](https://openairdocs.org/ntsb/ANC75AA001), Jul 2, 1974: Hiller Acft UH-12E (N5352V), Ketchikan, AK, substantial damage
- [NTSB ANC68A0045](https://openairdocs.org/ntsb/ANC68A0045), Mar 31, 1968: Hiller UH-12E (N5352V), Wrangell, AK, 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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