# NTSB CHI77DEV37: Bell 47G2, N5174B, Peoria, IL, July 27, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 27, 1977
- Place: Peoria, IL · PEORIA, IL
- Location: 40.6936° N, 89.5890° W: Placed by OpenAirDocs: center of Peoria, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.6936&lon=-89.5890&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report September 27, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 146100
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI77DEV37
- Page: https://openairdocs.org/ntsb/CHI77DEV37

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1893  77/7/27    PEORIA,IL           BELL 47G2           CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1500                    N5174B              PX-  0  0  0  DUAL                      AGE 29, 3501 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            440 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - GREATER PEORIA
        DEPARTURE POINT             INTENDED DESTINATION
          PEORIA,IL                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           DUAL STUDENT - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        FACTOR(S)
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
```

## Aircraft

- Registration: N5174B (not matched to a registry record)
- Reported make and model: BELL 47G2
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Greater Peoria

## 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 19770727022189A](https://openairdocs.org/incident/19770727022189A), Jul 27, 1977: Bell 47G2, Peoria, IL, Substantial damage

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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