# NTSB CHI85LA353: Cessna 170B, N2209D, West Chicago, IL, August 21, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 21, 1985, 17:40 local (22:40 UTC)
- Place: West Chicago, IL
- Coordinates: 41.880744, -88.219238 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.8807&lon=-88.2192&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 13196
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI85LA353
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13196/pdf
- Page: https://openairdocs.org/ntsb/CHI85LA353

## Sequence of events

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

- Loss of control - on ground/water, takeoff - roll/run
  - proper alignment - not maintained, pilot in command (cause)
  - remedial action - not performed, pilot in command (cause)
- On ground/water encounter with terrain/water, takeoff - roll/run
  - ground loop/swerve - inadvertent, pilot in command (contributing factor)

## Analysis

DURING APPLICATION OF PWR DURING A TOUCH-AND GO LANDING THE ACFT 'STARTED TO GET SIDEWAYS' ON THE RWY. THE PLT ALLOWED THE ACFT TO DRIFT OFF THE LEFT SIDE OF THE RWY INTO THE GRASS. A GROUND LOOP SUBSEQUENTLY OCCURRED WHICH SUBSTANTIALLY DAMAGED THE ACFT. WINDS AT THE TIME WERE FROM 80 DEGS AT 5 KTS WITH NO GUSTS. THE LANDING WAS BEING MADE ON RWY 15.

## Aircraft

- Registration: [N2209D](https://openairdocs.org/aircraft/N2209D), registered now, S/N 20361, built 1952 (OpenAirDocs)
- Reported make and model: CESSNA 170B
- Registry model: [Cessna 170B](https://openairdocs.org/model/cessna-170b) (registry code 2072306) (OpenAirDocs)
- Registry engine: [Continental C145 series](https://openairdocs.org/engine/continental-c145-series) (registry code 17012, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 20361
- Airframe hours: 3487
- Engines: CONTINENTAL C-145 145 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Patrick Sheehan
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, June 1, 1985
- Airport: DPA, Dupage, runway 15, 3,401 × 100 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 21; private; airplane ratings: single-engine land, multi-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 209 total, 9 in this make and model, 67 as pilot in command, 31 in the last 90 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 20 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 19850821039779A](https://openairdocs.org/incident/19850821039779A), Aug 21, 1985: Cessna 170B, West Chicago, IL, Substantial damage. Lost directional conrol on takeoff roll. Ground looped off side of the runway.

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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