# Incident 20040510035179I: Beech A36, Daytona Beach, FL, May 10, 2004

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: May 10, 2004, 12:30 local time
- Place: Daytona Beach, FL
- Airport: Spruce Creek Airport
- Phase of flight: Normal Cruise
- Operating rules: General operating rules (Part 91)
- Location: 29.0781° N, 81.0444° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=29.0781&lon=-81.0444&mi=10
- Aircraft: N3670S (not matched to a registry record)
- Reported make and model: BEECH A36
- People aboard: 2
- Fatal injuries: 0
- Pilot flight hours: 20,149 total
- NTSB investigation: [NTSB MIA04IA088](https://openairdocs.org/ntsb/MIA04IA088) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20040510035179I

## Narrative

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

(-23) ON MAY 10, 2004, ABOUT 1230 EASTERN DAYLIGHT TIME, A BEECH A-36, N3670S, REGISTERED TO AND OPERATED BY A PRIVATE INDIVIDUAL AS A TITLE 14 CFR PART 91 MAINTENANCE TEST FLIGHT, INCURRED A HEAVY VIBRATION DURING CLIMB AND CRUISE, IN THE VICINITY OF DAYTONA BEACH, FL. VISUAL METEOROLOGICAL CONDITIONS PREVAILED, AND NO FLIGHT PLAN WAS FILED. THE AIRLINE TRANSPORT PILOT AND ONE PASSENGER WERE NOT INJURED AND THE AIRPLANE WAS NOT DAMAGED. AFTER CHECKING VARIOUS ITEMS THE MECHANIC NOTICE THAT ONE OF THE PROPELLER BLADES APPEARED TO BE IN A NEGATIVE PITCH AND WHEN MOVED, IT REVOLVED FREELY IN THE HUB.

## The NTSB's investigation of this event (1)

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.

- [NTSB MIA04IA088](https://openairdocs.org/ntsb/MIA04IA088), May 10, 2004: Beech A36 (N3670S), Daytona Beach, FL, incident, no damage. Probable cause: Improper maintenance/installation by the propeller overhaul/repair facility, which resulted in stress related fatigue and the eventual separation of the propeller pitch change pin.

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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