# NTSB MKC66A0066: Brantly B-2, N2131U, N.Platte, NE, June 16, 1966

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 16, 1966
- Place: N.Platte, NE · N.PLATTE, NE
- Location: 41.1256° N, 100.7498° W: Placed by OpenAirDocs: center of North Platte, NE, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.1256&lon=-100.7498&mi=10
- Phase of flight: [Uncontrolled descent](https://openairdocs.org/ntsb-phases/650) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report February 20, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 171602
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC66A0066
- Page: https://openairdocs.org/ntsb/MKC66A0066

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0535  66/6/16    N.PLATTE NEBR       BRANTLY B-2         CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1800                    N2131U              PX-  0  0  0  DUAL                      AGE 31, 1851 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            2 IN TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - LEE BIRD FIELD
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             IN FLIGHT: UNCONTROLLED DESCENT
           ROLL OVER                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
           PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT
```

## Aircraft

- Registration: [N2131U](https://openairdocs.org/deregistered/N2131U-1977-07-14), registration cancelled 1977-07-14, S/N 179 (OpenAirDocs)
- Reported make and model: BRANTLY B-2
- Registry model: [Brantly B-2](https://openairdocs.org/model/brantly-b-2) (registry code 1440502) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Lee Bird Field

## Other investigations on N2131U (1)

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 CHI77FA038](https://openairdocs.org/ntsb/CHI77FA038), Apr 2, 1977: Brantly B-2 (N2131U), Tremont, IL, destroyed, 2 fatal

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.