# NTSB CHI87LA059: Cessna 172H, N3220L, Mosinee, WI, December 30, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: December 30, 1986, 15:10 local (21:10 UTC)
- Place: Mosinee, WI
- Coordinates: 44.780284, -89.680709 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.7803&lon=-89.6807&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 13716
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI87LA059
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13716/pdf
- Page: https://openairdocs.org/ntsb/CHI87LA059

## Sequence of events

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

- Loss of control - in flight, landing - flare/touchdown
  - proper glidepath - not maintained, dual student (cause)
  - flare - excessive, dual student (cause)
  - lack of total experience in type of aircraft, dual student (contributing factor)
  - remedial action - delayed, pilot in command(cfi) (cause)
- In flight collision with terrain/water, landing - flare/touchdown
  - terrain condition - runway

## Analysis

THE CFI STATED THAT WHILE IN THE LANDING CONFIGURATION, OVER THE APCH END OF THE RWY, THE STUDENT EXCESSIVELY FLARED THE ACFT AND IT STALLED WITH THE RIGHT WING CONTACTING THE RWY. ACCORDING TO THE CFI, POWER WAS ADDED BUT IT WAS TOO LATE TO 'SAVE THE LANDING.'

## Aircraft

- Registration: [N3220L](https://openairdocs.org/deregistered/N3220L-1990-02-13), registration cancelled 1990-02-13, S/N 17256120 (OpenAirDocs)
- Reported make and model: CESSNA 172H
- Registry model: [Cessna 172H](https://openairdocs.org/model/cessna-172h) (registry code 2072424) (OpenAirDocs)
- Category: Airplane
- Serial number: 17256120
- Airframe hours: 2768
- Engines: CONTINENTAL O-300-D 145 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Registered owner: Robert J. Gehring
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, July 15, 1986, 37 hours before
- Airport: CWA, Central Wisconsin Airport, runway 26, 7,645 × 150 ft, concrete

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; commercial, flight instructor; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: right; flight hours: 313 total, 126 in this make and model, 228 as pilot in command, 77 in the last 90 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 170° at 5 knots
- Visibility: 12 statute miles
- Lowest ceiling: 2,500 ft overcast
- Temperature: 34 °F, dew point 28 °F
- Altimeter: 30.00 inHg
- Observed at: CWA

## 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 19861230070879A](https://openairdocs.org/incident/19861230070879A), Dec 30, 1986: Cessna 172H, Mosinee, WI, Substantial damage. The wingtip contacted the runway when the aircraft stalled during landing flare. Inadequate instructor supervision

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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