# NTSB CHI92DEE04: Weatherly 201B, N2935W, Chana, IL, September 5, 1992

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: September 5, 1992, 11:30 local (16:30 UTC)
- Place: Chana, IL
- Coordinates: 41.989299, -89.199981 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.9893&lon=-89.2000&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report July 26, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 15236
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI92DEE04
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/15236/pdf
- Page: https://openairdocs.org/ntsb/CHI92DEE04

## Probable cause

FRACTURE OF A CONNECTING ROD RESULTING IN LOSS OF ENGINE POWER.

## 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,connecting rod - fractured (cause)
- Forced landing, descent - emergency
- On ground/water encounter with terrain/water, landing
  - terrain condition - rough/uneven (contributing factor)

## Analysis

THE PILOT EXPERIENCED ENGINE POWER LOSS RETURNING FROM AN AERIAL APPLICATION FLIGHT.  THE FORCED LANDING IN A ROUGH-SURFACED PASTURE RESULTED IN STRUCTURAL DAMAGE. ENGINE DISASSEMBLY SHOWED THE NUMBER 8 ROD HAD SEPARATED ACROSS THE I-BEAM SECTION AND FLAILED AGAINST ADJACENT PARTS OF THE ENGINE INTERIOR.

## Aircraft

- Registration: [N2935W](https://openairdocs.org/deregistered/N2935W-2008-09-10), registration cancelled 2008-09-10, S/N 603 (OpenAirDocs)
- Reported make and model: WEATHERLY 201B
- Registry model: [Weatherly 201B](https://openairdocs.org/model/weatherly-201b) (registry code 9630408) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 603
- Airframe hours: 5272
- Engines: P&W R-985-AN3 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Hendrickson Flying Service
- Registered owner: Hendrickson Flying Service
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, March 15, 1992, 4 hours before
- Departed: IL93, CRESTON, IL
- Destination: IL93

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 37; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: center; flight hours: 1,265 total, 160 in this make and model, 1,202 as pilot in command, 160 in the last 90 days, 160 in the last 30 days, 8 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 10 knots
- Visibility: 7 statute miles
- Lowest ceiling: none

## 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 19920905035499A](https://openairdocs.org/incident/19920905035499A), Sep 5, 1992: Wthrly 201B, Crestonchana, IL, Substantial damage. Lost power. Damage on forced landing, NR8 link rod break caused extensive engine damage.

## Other investigations on N2935W (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 OAK76FVG94](https://openairdocs.org/ntsb/OAK76FVG94), Jul 24, 1976: Weatherly 201B (N2935W), Davis, CA, destroyed

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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