# NTSB CHI89FA173: Cessna 150M, N9329U, Plainfield, IL, August 18, 1989

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Field investigation · Final report
- Date: August 18, 1989, 18:20 local (23:20 UTC)
- Place: Plainfield, IL
- Coordinates: 41.609413, -88.200607 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.6094&lon=-88.2006&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 2 serious
- Status: Completed, report June 26, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 14273
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI89FA173
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/14273/pdf
- Page: https://openairdocs.org/ntsb/CHI89FA173

## Probable cause

THE PILOT-IN-COMMAND LOST CONTROL OF THE AIRCRAFT FOLLOWING A PREMATURE LIFT-OFF RESULTING IN AN UNCONTROLLED DESCENT INTO THE TERRAIN.

## Sequence of events

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

- Loss of control - in flight, takeoff - initial climb
  - lift-off - premature, pilot in command (contributing factor)
  - aircraft control - not maintained, pilot in command (cause)
  - stall/spin - inadvertent, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

ON INITIAL CLIMBOUT THE AIRCRAFT WAS OBSERVED BY WITNESSES TO BE LOW AND TO HAVE THE WINGS ROCKING BACK AND FORTH. WITNESSES THEN DESCRIBED THE AIRCRAFT DEPARTING CONTROLLED FLIGHT AND IMPACTING THE TERRAIN. THE AIRCRAFT WAS DESTROYED AND BOTH OCCUPANTS SUSTAINED SERIOUS INJURIES.

## Aircraft

- Registration: [N9329U](https://openairdocs.org/deregistered/N9329U-1990-07-31), registration cancelled 1990-07-31, S/N 15078278 (OpenAirDocs)
- Reported make and model: CESSNA 150M
- Registry model: [Cessna 150M](https://openairdocs.org/model/cessna-150m) (registry code 2071830) (OpenAirDocs)
- Category: Airplane
- Serial number: 15078278
- Airframe hours: 2842
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Registered owner: Scott Hrdy
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 13, 1989, 37 hours before
- Departed: 1C5, PLAINFIELD, IL
- Airport: 1C5, Clow Int'L, runway 36, 3,370 × 50 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 26; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 281 total, 81 in this make and model, 243 as pilot in command, 42 in the last 90 days, 7 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 90° at 8 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 75 °F, dew point 54 °F
- Altimeter: 30.00 inHg
- Observed at: DPA, 12 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 19890818030579A](https://openairdocs.org/incident/19890818030579A), Aug 18, 1989: Cessna 150M, Plainfield, IL, Destroyed. Stalled during nose high climbout.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.