# NTSB FTW73FRJ08: Piper PA-25, N4525Y, Holly Ridge, LA, August 15, 1972

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 15, 1972
- Place: Holly Ridge, LA · HOLLY RIDGE, LA
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 14, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 167938
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW73FRJ08
- Page: https://openairdocs.org/ntsb/FTW73FRJ08

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3019  72/8/15    HOLLY RIDGE,LA      PIPER PA-25         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 24, 1240
        TIME - 1600                    N4525Y              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 700 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          RAYVILLE,LA                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: SWATH RUN
           COLLISION WITH GROUND/WATER: CONTROLLED                  LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - IGNITION SYSTEM: MAGNETOS
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           POWERPLANT - REDUCTION GEAR ASSEMBLY: GEARS,ACCESSORY DRIVE
           MISCELLANEOUS ACTS,CONDITIONS - SHEARED
           MISCELLANEOUS - EVASIVE MANEUVER TO AVOID COLLISION
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  700                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - COTTON                                    TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  500                 SWATH RUN-HOW FLOWN - CROSSWIND
          PROCEDURE TURNAROUND - SECOND 1/3 TURN
         FIRE AFTER IMPACT
        REMARKS- RIGHT MAGNETO FAILED SHEARING ACCESSORY DRIVE GEAR RESULTING IN COMPLETE ENGINE FAILURE.
```

## Aircraft

- Registration: [N4525Y](https://openairdocs.org/deregistered/N4525Y-1973-06-25), registration cancelled 1973-06-25, S/N 25-4174, 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: 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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