# NTSB UNK64X2780: Piper PA11, N4767M, Sullivan, IN, July 12, 1964

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: July 12, 1964
- Place: Sullivan, IN · SULLIVAN, IN
- Location: 39.0959° N, 87.4077° W: Placed by OpenAirDocs: center of Sullivan, IN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.0959&lon=-87.4077&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 2 serious, 1 minor
- Status: Completed, report October 30, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 183589
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X2780
- Page: https://openairdocs.org/ntsb/UNK64X2780

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0384  64/7/12    SULLIVAN IND        PIPER PA11          CR-  0  1  0  NONCOMMERCIAL             PRIVATE, AGE 59, 500
        TIME - 1630                    N4767M              PX-  0  1  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 475 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL                                                    TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY LOADED AIRCRAFT-WEIGHT-AND/OR C.G.
        REMARKS- 0NE PASSENGER WAS AN INFANT
```

## Aircraft

- Registration: [N4767M](https://openairdocs.org/deregistered/N4767M-1964-09-03), registration cancelled 1964-09-03, S/N 11-282 (OpenAirDocs)
- Reported make and model: PIPER PA11
- Registry model: [Piper PA-11](https://openairdocs.org/model/piper-pa-11) (registry code 7101102) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

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.