# NTSB CHI89LA006: Beech 55B, N8769R, Quincy, IL, October 9, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: October 9, 1988, 16:20 local (21:20 UTC)
- Place: Quincy, IL
- Location: 39.9423° N, 91.1924° W: Placed by OpenAirDocs at QUINCY RGNL-BALDWIN FLD (UIN), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.9423&lon=-91.1924&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report July 9, 1990
- Report: Approved by Office Director
- NTSB case key (mKey): 14296
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI89LA006
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/14296/pdf
- Page: https://openairdocs.org/ntsb/CHI89LA006

## Probable cause

THE PILOT IN COMMAND'S FAILURE TO MAINTAIN CONTROL OF THE AIRCRAFT AND TO TAKE APPROPRIATE ACTION TO CORRECT THE PORPOISE.

## Sequence of events

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

- Hard landing, landing - flare/touchdown
  - flare - improper, pilot in command (cause)
  - porpoise/pilot-induced oscillation - not corrected, pilot in command (cause)
- Nose gear collapsed, landing - roll
  - landing gear,nose gear - overload

## Aircraft

- Registration: [N8769R](https://openairdocs.org/aircraft/N8769R), registered now, S/N TC-1790, built 1974 (OpenAirDocs)
- Reported make and model: BEECH 55B
- Registry model: [Beech 95-B55 (T42A)](https://openairdocs.org/model/beech-95-b55-t42a) (registry code 1152706) (OpenAirDocs)
- Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: TC1790
- Airframe hours: 2090
- Engines: CONTINENTAL IO-470L 260 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Registered owner: Delmarva Engineering Assoc Ltd
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, February 3, 1988, 45 hours before
- Departed: BUF, BUFFALO, NY
- Destination: OJC, KANSAS CITY, KS
- Airport: UIN, Quincy-Baldwin Fld, runway 31, 5,400 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 54; private; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 890 total, 199 in this make and model, 725 as pilot in command, 15 in the last 90 days, 6 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 310° at 10 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 63 °F, dew point 43 °F
- Altimeter: 30.00 inHg
- Observed at: UIN

## 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 19881009046559A](https://openairdocs.org/incident/19881009046559A), Oct 9, 1988: Beech 95B55, Quincy, IL, Substantial damage. Bounced, ballooned and porpoised until nose wheel separated.

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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