# NTSB CHI93LA091: Beech 77, N3733B, Evansville, IN, February 18, 1993

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: February 18, 1993, 13:28 local (18:28 UTC)
- Place: Evansville, IN
- Coordinates: 37.969436, -87.570472 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=37.9694&lon=-87.5705&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report November 3, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 15668
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI93LA091
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/15668/pdf
- Page: https://openairdocs.org/ntsb/CHI93LA091

## Probable cause

THE PARTIAL FAILURE OF THE NORMAL BRAKE SYSTEM.

## Sequence of events

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

- Airframe/component/system failure/malfunction, landing
  - landing gear,normal brake system - failure,partial (cause)
- On ground/water collision with object, landing - roll
  - directional control - not maintained, pilot in command
  - terrain condition - snowbank
- Nose over, landing - roll

## Analysis

THE SOLO STUDENT PILOT LANDED ON A DRY ASPHALT RUNWAY.  DURING THE ROLLOUT THE AIRPLANE VEERED TO THE RIGHT, IMPACTED A SNOWBANK AND NOSED OVER.  A 200 FOOT LONG SKID MARK WAS LEFT ON THE RUNWAY FROM THE RIGHT MAIN TIRE. A POST ACCIDENT FUNCTIONAL EXAMINATION OF THE BRAKING SYSTEM REVEALED THAT THE RIGHT BRAKE OPERATED NORMALLY; HOWEVER, THE LEFT BRAKE WOULD NOT WORK ON INITIAL APPLICATION.  ONLY AFTER PUMPING THE LEFT BRAKE PEDAL WOULD THE BRAKE HOLD.

## Aircraft

- Registration: [N3733B](https://openairdocs.org/deregistered/N3733B-2013-03-25), registration cancelled 2013-03-25, S/N WA-157, built 1980 (OpenAirDocs)
- Reported make and model: BEECH 77
- Registry model: [Beech 77](https://openairdocs.org/model/beech-77) (registry code 1153007) (OpenAirDocs)
- Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Serial number: WA-157
- Airframe hours: 2908
- Engines: LYCOMING O-235-L2C 115 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Van S Aviation Corp.
- Registered owner: Van S Aviation Corp.
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, December 4, 1992, 19 hours before
- Departed: I52, INDIANAPOLIS, IN
- Airport: EVV, Evansville Regional, runway 18, 5,080 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 30; student; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 47 total, 47 in this make and model, 26 in the last 90 days, 11 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 280° at 11 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 16 °F, dew point -0 °F
- Altimeter: 30.00 inHg
- Observed at: EVV, 1 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 19930218003159A](https://openairdocs.org/incident/19930218003159A), Feb 18, 1993: Beech 77, Evansville, IN, Substantial damage. Veered right off runway on landing roll. Struck snowbank. Flipped over. Weak left brake. Could be pumped up.

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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