# NTSB ANC70IA092: Hiller Acft FH1100, N590FH, Delta Junctn, AK, June 22, 1970

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: June 22, 1970
- Place: Delta Junctn, AK · DELTA JUNCTN, AK
- Location: 64.0567° N, 145.6924° W: Placed by OpenAirDocs: center of Delta Junction, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=64.0567&lon=-145.6924&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report December 9, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 121698
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC70IA092
- Page: https://openairdocs.org/ntsb/ANC70IA092

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
5-0017  70/6/22  NR.DELTA JUNCTN,ALAS  HILLER ACFT FH1100  CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 30, 2080
        TIME - 1110                    N590FH              PX-  0  0  3  AIR TAXI-PASSG            TOTAL HOURS, 340 IN TYPE,
                                       DAMAGE-MINOR        OT-  0  0  0                            NOT INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        DEPARTURE POINT             INTENDED DESTINATION
         UNKNOWN/NOT REPORTED        UNKNOWN/NOT REPORTED
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: TREES                                     LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - COMPRESSOR ASSEMBLY: BLADE,COMPRESSOR ROTOR
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- 6TH STAGE COMPRESSOR BLADES FAILED.
```

## Aircraft

- Registration: [N590FH](https://openairdocs.org/deregistered/N590FH-2013-08-19), registration cancelled 2013-08-19, S/N 90, built 1967 (OpenAirDocs)
- Reported make and model: HILLER ACFT FH1100
- Registry model: [Fairchild Hiller FH-1100](https://openairdocs.org/model/fairchild-hiller-fh-1100) (registry code 3376502) (OpenAirDocs)
- Registry engine: [Allison 250 SER 250HP](https://openairdocs.org/engine/allison-250-ser-250hp) (registry code 03002, turbo-shaft) (OpenAirDocs)
- Category: Helicopter
- Engines: turbo shaft
- Damage: Minor damage

## Other investigations on N590FH (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 BFO87LA047](https://openairdocs.org/ntsb/BFO87LA047), Jul 15, 1987: Hiller FH-1100 (N590FH), Capron, VA, substantial damage
- [NTSB SEA73AS001](https://openairdocs.org/ntsb/SEA73AS001), Jul 19, 1972: Hiller Acft FH1100 (N590FH), North Bend, WA, 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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