# NTSB CHI84LA156: Cessna 172D, N2472U, Bad Axe, MI, April 20, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 20, 1984, 12:15 local (17:15 UTC)
- Place: Bad Axe, MI
- Coordinates: 43.800586, -82.99076 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=43.8006&lon=-82.9908&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12582
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI84LA156
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12582/pdf
- Page: https://openairdocs.org/ntsb/CHI84LA156

## Sequence of events

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

- Airframe/component/system failure/malfunction, takeoff - roll/run
  - landing gear,normal brake system - binding(mechanical) (cause)
- Loss of control - on ground/water, takeoff - roll/run
  - directional control - not possible, pilot in command
  - ground loop/swerve - uncontrolled, pilot in command
- On ground/water encounter with terrain/water, takeoff
  - aborted takeoff - performed, pilot in command
  - terrain condition - wet (contributing factor)
  - terrain condition - soft (contributing factor)
- Nose gear collapsed, takeoff
  - landing gear,nose gear - overload
- Nose down, takeoff

## Analysis

AFTER TRAVELING 100-150 FT ON THE TAKEOFF ROLL, THE RGT BRAKE SEIZED & THE ACFT VEERED SHARPLY TO THE RGT. THE ACFT DEPARTED THE RWY & WENT INTO A MUDDY AREA WHERE THE NOSE GEAR COLLAPSED & THE ACFT NOSED DOWN. THE PLT REPORTED THAT THERE WERE 200 FT LONG SKID MARKS ON THE RWY FROM THE RGT TIRE. HE ALSO REPORTED THAT THE PINS ON THE BRAKE PAD WERE LOOSE WHICH ALLOWED IT TO MOVE & SUBSEQUENTLY SEIZE.

## Aircraft

- Registration: [N2472U](https://openairdocs.org/deregistered/N2472U-1984-08-23), registration cancelled 1984-08-23, S/N 17250072 (OpenAirDocs)
- Reported make and model: CESSNA 172D
- Registry model: [Cessna 172D](https://openairdocs.org/model/cessna-172d) (registry code 2072410) (OpenAirDocs)
- Category: Airplane
- Serial number: 17250072
- Airframe hours: 2014
- Engines: CONTINENTAL O-300-D 145 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Richard L. Trowhill
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, December 28, 1983
- Destination: C16, URBANA, IL
- Airport: 76D, Huron Memorial, runway 3, 3,500 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 32; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 89 total, 45 in this make and model, 42 as pilot in command, 5 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 300° at 10 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 50 °F
- Altimeter: 29.00 inHg

## 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 19840420014419A](https://openairdocs.org/incident/19840420014419A), Apr 20, 1984: Cessna 172D, Bad Axe, MI, Substantial damage. Right brake seized on the takeoff roll. Ran off the runway and nosed over. Brake pad pins were loose and pad moved.

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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