# NTSB CHI91LA234: Cessna 172, N4821G, Sheboygan, WI, July 27, 1991

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: July 27, 1991, 13:38 local (18:38 UTC)
- Place: Sheboygan, WI
- Location: 43.7698° N, 87.8517° W: Placed by OpenAirDocs at SHEBOYGAN COUNTY MEML INTL (SBM), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.7698&lon=-87.8517&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 2 uninjured
- Status: Completed, report March 31, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 15132
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI91LA234
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/15132/pdf
- Page: https://openairdocs.org/ntsb/CHI91LA234

## Probable cause

THE PILOT'S FAILURE TO MAINTAIN AIRCRAFT CONTROL. FACTORS ARE THE PILOT'S LACK OF TOTAL EXPEREINCE, HIS INADEQUATE RECOVERY FROM THE BOUNCED LANDING AND THE CROSSWIND CONDITION.

## Sequence of events

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

- In flight encounter with weather, landing - flare/touchdown
  - recovery from bounced landing - inadequate, pilot in command (contributing factor)
  - weather condition - crosswind (contributing factor)
  - aircraft control - not maintained, pilot in command (cause)
  - lack of total experience, pilot in command (contributing factor)
  - stall - encountered, pilot in command
- In flight collision with terrain/water, descent - uncontrolled
  - terrain condition - grass

## Analysis

THE PILOT STATED THE AIRPLANE BOUNCED AIRBORNE AFTER TOUCHING DOWN ON RUNWAY 13. HE REPORTED THE CROSSWIND PUSHED THE AIRPLANE OFF THE LEFT SIDE OF THE RUNWAY. WHEN THE PILOT WAS UNABLE TO STEER THE AIRPLANE BACK TOWARD THE RUNWAY, HE ATTEMPTED TO ABORT THE LANDING. HE STATED THE 'SPEED WAS TOO SLOW AND (THE PLANE) STALLED RIGHT AWAY'. THE AIRPLANE IMPACTED THE GROUND NOSE FIRST, AND CAME TO REST INVERTED.

## Aircraft

- Registration: [N4821G](https://openairdocs.org/deregistered/N4821G-2021-04-03), registration cancelled 2021-04-03, S/N 17273369, built 1979 (OpenAirDocs)
- Reported make and model: CESSNA 172
- Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (registry code 2072434) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 17273369
- Engines: LYCOMING O-320-H2AD 160 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Gibson Avaition, Inc.
- Airworthiness certificate: Standard, Normal; Standard, Utility
- Last inspection: 100 hour, July 5, 1991
- Departed: 63C, FRIENDSHIP, WI
- Airport: SBM, Sheboygan, runway 13, 3,993 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 35; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: right; flight hours: 110 total, 51 as pilot in command, 8 in the last 90 days, 6 in the last 30 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 10 statute miles
- Lowest ceiling: none
- Altimeter: 30.00 inHg

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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