# NTSB ATL89LA032: Beech 35-A33, N431T, Marietta, GA, November 13, 1988

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: November 13, 1988, 15:10 local (20:10 UTC)
- Place: Marietta, GA
- Coordinates: 34.020874, -84.610069 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.0209&lon=-84.6101&mi=10
- Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report December 6, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 7952
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL89LA032
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/7952/pdf
- Page: https://openairdocs.org/ntsb/ATL89LA032

## Analysis

DURING PREFLT 'RUN-UP' AT THE END OF THE ACTIVE RWY, THE RIGHT BRAKE FAILED AND THE AIRPLANE PIVOTED LEFT WHILE THE ENGINE WAS AT A HIGH POWER SETTING. THE PLT RPTED THAT THINGS HAPPENED SO FAST THAT HE MAY HAVE ADDED POWER WHILE ATTEMPTING TO REDUCE POWER. HE ALSO STATED THAT HE CONTINUED TO PRESS ON THE BRAKE PEDALS CAUSING THE ACFT TO TURN TO THE LEFT TOWARDS A STEEP BANK. THE ACFT ROLLED APPROX 200 FT AND OVERTURNED ON THE SIDE OF AN EMBANKMENT. INVESTIGATION REVEALED THAT THE RIGHT BRAKE HOSE HAD RUPTURED AT THE CALIPER WHICH CAUSED THE LOSS OF RIGHT BRAKE FLUID/PRESSURE. THE BRAKE HOSE WAS ORIGINAL EQUIPMENT, 28 YEARS OLD. AN ANNUAL INSPECTION WAS PERFORMED 5 MONTHS PRIOR TO THE ACCIDENT.

## Sequence of events

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

- Airframe/component/system failure/malfunction, standing - engine(s) operating
  - landing gear,normal brake system - failure,partial (cause)
  - maintenance,annual inspection - inadequate, other maintenance personnel (contributing factor)
  - hydraulic system,line - ruptured (cause)
- Loss of control - on ground/water, taxi
  - throttle/power control - improper use of, pilot in command (cause)
  - brakes(normal) - improper use of, pilot in command (cause)
- On ground/water encounter with terrain/water, taxi
  - terrain condition - ravine

## Aircraft

- Registration: [N431T](https://openairdocs.org/deregistered/N431T-2013-07-10), registration cancelled 2013-07-10, S/N CD-287, built 1961 (OpenAirDocs)
- Reported make and model: BEECH 35-A33
- Registry model: [Beech 35-A33](https://openairdocs.org/model/beech-35-a33) (registry code 1151404) (OpenAirDocs)
- Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: CD287
- Airframe hours: 2124
- Engines: CONTINENTAL IO-470-J 225 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Harry William Haney
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, June 3, 1988, 42 hours before
- Departed: 8A4, MARIETTA, GA
- Destination: 6A0, CARTERSVILLE, GA
- Airport: 8A4, Mccollum, runway 27, 4,591 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 61; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 466 total, 179 in this make and model, 10 in the last 90 days, 2 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 290° at 7 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 68 °F, dew point 46 °F
- Altimeter: 30.00 inHg
- Observed at: FTY

## 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 19881113051969A](https://openairdocs.org/incident/19881113051969A), Nov 13, 1988: Beech 35A33, Marietta, GA, Substantial damage. Brake failed on runup. Added power by mistake. Ran down a bank. Nosed over. 22YR old brake line had ruptured.

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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