# NTSB OAK75FVG69: Piper PA-25, N4663Y, Manton, CA, May 23, 1975

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: May 23, 1975
- Place: Manton, CA · MANTON, CA
- Location: 40.4267° N, 121.8504° W: Placed by OpenAirDocs: center of Manton, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.4267&lon=-121.8504&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report July 10, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 148906
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK75FVG69
- Page: https://openairdocs.org/ntsb/OAK75FVG69

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1271  75/5/23    MANTON,CA           PIPER PA-25         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 20, 505
        TIME - 0800                    N4663Y              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 200 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          MANTON,CA                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: PULLUP FROM SWATH RUN
           COLLIDED WITH: TREES                                     IN FLIGHT: PULLUP FROM SWATH RUN
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: CRANKSHAFT
           MISCELLANEOUS ACTS,CONDITIONS - OBSTRUCTED
           MISCELLANEOUS ACTS,CONDITIONS - LACK OF LUBRICATION-SPECIFIC PART,NOT SYSTEM
           TERRAIN - HIGH OBSTRUCTIONS
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  200                       KIND OF OPERATION - DUSTING CROPS
          KIND OF CROP - GRAPES                                    TYPE OF CHEMICAL USED - DRY CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - USED
          GOGGLES - USED                                           CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -HILLY
          ELEVATION-AREA BEING TREATED-FEET -  3000                SWATH RUN-HOW FLOWN - WIND CALM
          PROCEDURE TURNAROUND - ENTRY TO PROCEDURE TURN
         FIRE AFTER IMPACT
        REMARKS- CLOGGED CRANKSHAFT OIL PASSAGEWAY NR 6 JOURNAL.
```

## Aircraft

- Registration: [N4663Y](https://openairdocs.org/deregistered/N4663Y-1975-07-21), registration cancelled 1975-07-21, S/N 25-4387, built 1967 (OpenAirDocs)
- Reported make and model: PIPER PA-25
- Registry model: [Piper PA-25-235](https://openairdocs.org/model/piper-pa-25-235) (registry code 7102504) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

## 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 19750523014799A](https://openairdocs.org/incident/19750523014799A), May 23, 1975: Piper PA25235, Manton, CA, Destroyed. Clogged crankshaft oil passageway nr 6 journal.

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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