# NTSB IAD71AI035: Sikorsky S-58E, N1172U, Sandston, VA, January 22, 1971

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: January 22, 1971
- Place: Sandston, VA · SANDSTON, VA
- Location: 37.5131° N, 77.3130° W: Placed by OpenAirDocs: center of Sandston, VA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.5131&lon=-77.3130&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 5 minor
- Status: Completed, report March 22, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 159478
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD71AI035
- Page: https://openairdocs.org/ntsb/IAD71AI035

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0013  71/1/22  NR.SANDSTON,VA        SIKORSKY S-58E      CR-  0  0  3  NONCOMMERCIAL             COMMERCIAL, AGE 36, 4434
        TIME - 1725                    N1172U              PX-  0  0  2  BUSINESS                  TOTAL HOURS, 1592 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, INSTRUMENT RATED.
        NAME OF AIRPORT - BYRD FIELD
        DEPARTURE POINT             INTENDED DESTINATION
          STRATFORD,CONN              RICHMOND,VA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: RESIDENCE(S)                              LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           PILOT IN COMMAND - IMPROPER IN-FLIGHT DECISIONS OR PLANNING
           PILOT IN COMMAND - MISMANAGEMENT OF FUEL
           MISCELLANEOUS ACTS,CONDITIONS - MISCALCULATED FUEL CONSUMPTION
           MISCELLANEOUS ACTS,CONDITIONS - FUEL EXHAUSTION
           TERRAIN - HIGH OBSTRUCTIONS
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-2 ENGINES
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- EXPERIMENTAL CERT.FUEL CONSUMPTN ESTD 600LB PER HR,USED 750LB.CONTD FLT AFT FUEL WARN LITE CAME ON
```

## Aircraft

- Registration: [N1172U](https://openairdocs.org/deregistered/N1172U-1971-03-22), registration cancelled 1971-03-22, S/N 581122 (OpenAirDocs)
- Reported make and model: SIKORSKY S-58E
- Registry model: [Sikorsky H-34A](https://openairdocs.org/model/sikorsky-h-34a) (registry code 8141812) (OpenAirDocs)
- Category: Helicopter
- Engines: turbo shaft
- Damage: Substantial damage
- Airport: Byrd Field

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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