# NTSB MIA89LA069: Bellanca 14-13-2, N74473, Sebring, FL, January 13, 1989

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: January 13, 1989, 10:04 local (15:04 UTC)
- Place: Sebring, FL
- Coordinates: 27.489177, -81.449943 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=27.4892&lon=-81.4499&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report January 22, 1991
- Report: Approved by Office Director
- NTSB case key (mKey): 32385
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA89LA069
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/32385/pdf
- Page: https://openairdocs.org/ntsb/MIA89LA069

## Probable cause

FAILURE OF THE CAM GEAR SNAP RING, WHICH ALLOWED THE CAMSHAFT GEAR TO BECOME DISCONNECTED.  FACTORS RELATED TO THE ACCIDENT WERE TREES IN THE EMERGENCY LANDING AREA.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power(total) - mech failure/malf, cruise - normal
  - engine assembly,other - failure,total (cause)
  - engine assembly,timing gear - disconnected (cause)
- Forced landing, descent - emergency
- On ground/water collision with object, landing - roll
  - object - tree(s) (contributing factor)

## Analysis

DURING FLT AT AN ALT OF APRX 1000 FT, THE ENG LOST POWER. ATTEMPTS TO RESTART THE ENG WERE UNSUCCESSFUL. SUBSEQUENTLY, THE ACFT COLLIDED WITH TREES DURING AN EMERGENCY LANDING. AN EXAM OF THE ENG REVEALED THE CAM GEAR SNAP RING (FRANKLIN PART NO: 19983) HAD FAILED & ALLOWED THE CAMSHAFT GEAR TO ROTATE TO AN OUT-OF-TIME CONDITION. SUBSEQUENTLY, THE ENG LOST POWER & THE PISTONS CONTACTED THE INTAKE & EXHAUST VALVES. THE ENG HAD A TOTAL TIME OF APRX 1205 HRS.

## Aircraft

- Registration: [N74473](https://openairdocs.org/deregistered/N74473-2022-07-02), registration cancelled 2022-07-02, S/N 1586, built 1948 (OpenAirDocs)
- Reported make and model: BELLANCA 14-13-2
- Registry model: [Bellanca 14-13-2](https://openairdocs.org/model/bellanca-14-13-2) (registry code 1201004) (OpenAirDocs)
- Registry engine: [Franklin 6A4150 series](https://openairdocs.org/engine/franklin-6a4150-series) (registry code 27024, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 1586
- Engines: FRANKLIN 6A-335-B1 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Snavely, William R.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, March 23, 1988, 71 hours before
- Departed: 8X5, LAKE PLACID, FL
- Destination: SEF, SEBRING, FL

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 52; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 2,420 total, 67 in this make and model, 32 in the last 90 days, 7 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 72 °F, dew point 64 °F
- Altimeter: 30.00 inHg
- Observed at: BOW, 40 nm away

## 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 19890113013569A](https://openairdocs.org/incident/19890113013569A), Jan 13, 1989: Blanca 14132, Sebring, FL, Substantial damage. Engine failed. Rolled into trees on forced landing. Camshaft lock ring failed caused out of time. Piston hit valves

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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