# Incident 20260327008059I: Piper PA-28-181, Redrock, AZ, March 27, 2026

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: March 27, 2026, 06:50 local time
- Place: Redrock, AZ
- Airport: Twin Hawks Airpark
- Damage: No damage
- Phase of flight: Cruise/Level Flight
- Operating rules: General operating rules (Part 91)
- Location: 32.5278° N, 111.1958° W: Placed by OpenAirDocs at TWIN HAWKS AIRPARK (AZ63), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.5278&lon=-111.1958&mi=10
- Aircraft: N4337F, registered now (https://openairdocs.org/aircraft/N4337F) (OpenAirDocs)
- Registry model: Piper PA-28-181 (registry code 7102807, https://openairdocs.org/model/piper-pa-28-181) (OpenAirDocs)
- Reported make and model: PIPER PA-28-181
- Reported engine: LYCOMING O-360
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Flight instructor
- Pilot flight hours: 483 total
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20260327008059I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ON [DATE], CESSNA 172 ^PRIVACY DATA OMITTED^ WAS CONDUCTING A TRAINING FLIGHT WITH A FLIGHT INSTRUCTOR AND STUDENT PILOT WHEN THE ENGINE EXPERIENCED A TOTAL LOSS OF POWER. RESTART ATTEMPTS WERE UNSUCCESSFUL, AND THE INSTRUCTOR CONDUCTED A PRECAUTIONARY LANDING AT TWIN HAWKS AIRPARK (AZ63) WITHOUT FURTHER INCIDENT. THE AIRCRAFT WAS NOT DAMAGED DURING THE LANDING.

THE ENGINE WAS REMOVED AND SENT TO AN ENGINE OVERHAUL FACILITY FOR TEARDOWN AND EVALUATION. THE TEARDOWN REVEALED A SHEARED CRANKSHAFT GEAR DOWEL PIN, WHICH ALLOWED THE CRANKSHAFT GEAR TO MOVE OUT OF POSITION AND PREVENTED THE MAGNETOS FROM OPERATING CORRECTLY, RESULTING IN THE LOSS OF ENGINE POWER. DAMAGE WAS NOTED TO THE CRANKSHAFT GEAR AND ASSOCIATED COMPONENTS.

MAINTENANCE PERSONNEL ADVISED THAT THE OBSERVED DAMAGE COULD BE CONSISTENT WITH A PREVIOUS PROPELLER STRIKE; HOWEVER, THE AIRCRAFT OWNER REPORTED THE ENGINE HAD NOT EXPERIENCED A PROPELLER STRIKE SINCE OVERHAUL. THE ASI REVIEWED THE AIRCRAFT MAINTENANCE RECORDS AND FOUND NO EVIDENCE OF A PROPELLER STRIKE. THE ENGINE WAS APPROXIMATELY 100 HOURS FROM THE MANUFACTURER'S RECOMMENDED OVERHAUL INTERVAL.

THE INVESTIGATION WAS UNABLE TO DEFINITIVELY DETERMINE THE CAUSE OF THE CRANKSHAFT GEAR DOWEL PIN FAILURE.

## Other reports on N4337F (1)

Matched to the same aircraft by N-number and date.

- [Incident 20100808044169I](https://openairdocs.org/incident/20100808044169I), Aug 8, 2010: Piper PA-28-181 (N4337F), Omaha, NE, Minor damage. The incident occured during an instructional flight with a primary student. The instructor had demonstrated several take-offs and landings which were followed…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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