# NTSB FTW78FPJ09: Piper PA-24, N8636P, Oklahoma City, OK, December 14, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: December 14, 1977
- Place: Oklahoma City, OK · OKLAHOMA CITY, OK
- Location: 35.4676° N, 97.5164° W: Placed by OpenAirDocs: center of Oklahoma City, OK, within about 14 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=35.4676&lon=-97.5164&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report March 8, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 143846
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW78FPJ09
- Page: https://openairdocs.org/ntsb/FTW78FPJ09

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4054  77/12/14   OKLAHOMA CITY,OK    PIPER PA-24         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 34, 488
        TIME - 1700                    N8636P              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, ALL IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          AMARILLO,TX                 OKLAHOMA CITY,OK
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: PROPELLER                       IN FLIGHT: DESCENDING
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - PROPELLER AND ACCESSORIES: HYDRAULIC PITCH CONTROL MECHANISM
           MISCELLANEOUS ACTS,CONDITIONS - CORRODED/CORROSION
           TERRAIN - ROUGH/UNEVEN
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- PROPELLER,HARTZELL HC C2YKIA,PITCH CHANGE BLOCK,P/N 2217,FROZEN ON TEFLON BUSHING.
```

## Aircraft

- Registration: [N8636P](https://openairdocs.org/deregistered/N8636P-2013-03-07), registration cancelled 2013-03-07, S/N 24-4077, built 1964 (OpenAirDocs)
- Reported make and model: PIPER PA-24
- Registry model: [Piper PA-24-260](https://openairdocs.org/model/piper-pa-24-260) (registry code 7102406) (OpenAirDocs)
- Registry engine: [Lycoming TI0-540 series](https://openairdocs.org/engine/lycoming-ti0-540-series) (registry code 41533, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## 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 19771214038219A](https://openairdocs.org/incident/19771214038219A), Dec 14, 1977: Piper PA24260, Oklahoma City, SC, Substantial damage. Propeller,hartzell hc C2YKIA,pitch change block,p/n 2217,frozen on teflon bushing.

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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