# NTSB CHI75FEE65: Brantly B2B, N2264U, Wheeling, IL, May 20, 1975

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: May 20, 1975
- Place: Wheeling, IL · WHEELING, IL
- Location: 42.1277° N, 87.9210° W: Placed by OpenAirDocs: center of Wheeling, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.1277&lon=-87.9210&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report July 25, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 148774
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI75FEE65
- Page: https://openairdocs.org/ntsb/CHI75FEE65

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1531  75/5/20    WHEELING,IL         BRANTLY B2B         CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1533                    N2264U              PX-  0  0  0  DUAL                      AGE 28, 328 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            138 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - CHICAGOLAND
        DEPARTURE POINT             INTENDED DESTINATION
          WHEELING,IL                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            LANDING: POWER-OFF AUTOROTATIVE LANDING
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           MISCELLANEOUS ACTS,CONDITIONS - SIMULATED CONDITIONS
           PILOT IN COMMAND - MISJUDGED SPEED AND ALTITUDE
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        REMARKS- PRACTICE AUTOROTATION.
```

## Aircraft

- Registration: [N2264U](https://openairdocs.org/aircraft/N2264U), registered now, S/N 426 (OpenAirDocs)
- Reported make and model: BRANTLY B2B
- Registry model: [Brantly B-2B](https://openairdocs.org/model/brantly-b-2b) (registry code 1440506) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Chicagoland

## 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 19750520016869A](https://openairdocs.org/incident/19750520016869A), May 20, 1975: Hynes B2B, Wheeling, IL, Substantial damage. Practice autorotation.

## Other investigations on N2264U (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 FTW88LA152](https://openairdocs.org/ntsb/FTW88LA152), Aug 25, 1988: Brantly Helicopter B-2B (N2264U), Sallisaw, OK, substantial damage
- [NTSB CHI70FDJ15](https://openairdocs.org/ntsb/CHI70FDJ15), Apr 26, 1970: Brantly B2B (N2264U), Wis Dells, WI, substantial damage
- [NTSB FTW65A0098](https://openairdocs.org/ntsb/FTW65A0098), Mar 28, 1965: Brantly B2B (N2264U), Amarillo, TX, substantial damage
- [NTSB UNK65X1045](https://openairdocs.org/ntsb/UNK65X1045), Dec 18, 1964: Brantly B2B (N2264U), Hawthorn, PA, 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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