# NTSB CHI92LA148: Stinson 108-2, N9694K, Olathe, KS, May 12, 1992

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: May 12, 1992, 18:50 local (23:50 UTC)
- Place: Olathe, KS
- Coordinates: 38.839378, -94.77993 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.8394&lon=-94.7799&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report July 26, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 15443
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI92LA148
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/15443/pdf
- Page: https://openairdocs.org/ntsb/CHI92LA148

## Probable cause

THE IN FLIGHT SEPARATION OF THE PROPELLER TIP.  AN ASSOCIATED FACTOR IS THE ROUGH AND UNEVEN TERRAIN.

## Sequence of events

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

- Airframe/component/system failure/malfunction, cruise - normal
  - propeller system/accessories,blade - separation (cause)
- Forced landing, descent - emergency
- On ground/water encounter with terrain/water, landing - flare/touchdown
  - terrain condition - rough/uneven (contributing factor)

## Analysis

THE PILOT REPORTED A SEVERE SHUDDERING SHORTLY AFTER DEPARTING THE TRAFFIC PATTERN. POST ACCIDENT INSPECTION REVEALED THAT 7 INCHES OF ONE PROPELLER TIP HAD SEPARATED IN FLIGHT, CAUSING SEVERE IMBALANCE AND VIBRATION. THE PROPELLER TIP SEPARATED AT A REPAIR SCARF JOINT GLUE LINE.

## Aircraft

- Registration: [N9694K](https://openairdocs.org/deregistered/N9694K-2013-06-14), registration cancelled 2013-06-14, S/N 108-2694, built 1947 (OpenAirDocs)
- Reported make and model: STINSON 108-2
- Registry model: [Stinson 108-2](https://openairdocs.org/model/stinson-108-2) (registry code 9230406) (OpenAirDocs)
- Registry engine: [Franklin 6A4165 series](https://openairdocs.org/engine/franklin-6a4165-series) (registry code 27025, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 108-2694
- Engines: FRANKLIN 150-B-3 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Hauser, David A.
- Registered owner: Hauser, David A.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, September 1, 1991
- Destination: TOPEKA, KS

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 63; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 422 total, 20 in this make and model, 422 as pilot in command, 10 in the last 90 days, 10 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 355° at 12 knots
- Visibility: 25 statute miles
- Lowest ceiling: none
- Temperature: 75 °F, dew point -0 °F

## 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 19920512014329A](https://openairdocs.org/incident/19920512014329A), May 12, 1992: Univar 1082, Olathe, KS, Substantial damage. Severe vibration on climbout. Shutdown engine. Struck a ditch on landing. Nosed over. Reworked prop tip broke off.

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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