# NTSB BFO92LA154: Cessna 305A, N5074Y, Waynesville, OH, September 27, 1992

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 27, 1992, 15:00 local (19:00 UTC)
- Place: Waynesville, OH
- Coordinates: 39.530288, -84.079429 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.5303&lon=-84.0794&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 28, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 11858
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=BFO92LA154
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/11858/pdf
- Page: https://openairdocs.org/ntsb/BFO92LA154

## Probable cause

THE CHAFFING OF A LANDING GEAR BRAKE LINE WHICH CAUSED THE LOSS OF HYDRAULIC FLUID AND SUBSEQUENT LOSS OF BRAKING ACTION.

## 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 - chafed (cause)
  - fluid,hydraulic - leak (cause)
  - landing gear,normal brake system - failure,partial (cause)
  - directional control - not possible
- On ground/water collision with object, landing - roll
  - object - building(nonresidential)

## Analysis

ACCORDING TO THE PILOT, A PRE FLIGHT INSPECTION WAS PERFORMED AND NO ABNORMALITIES WERE FOUND.  THE PILOT ALSO STATED THAT DURING LANDING ROLLOUT, THE RIGHT BRAKE FAILED, CAUSING THE AIRPLANE TO VEER TO THE LEFT AND IMPACT A WOODEN OBSERVATION DECK.  AN EXAMINATION OF THE AIRPLANE REVEALED THAT A SMALL HOLE HAD BEEN WORN INTO THE BRAKE LINE BY CHAFFING ACTION FROM THE BRAKE LINE CLAMP ON THE LANDING GEAR.  HYDRAULIC FLUID ESCAPED FROM THIS HOLE AND RENDERED THE RIGHT BRAKE INEFFECTIVE.

## Aircraft

- Registration: N5074Y (not matched to a registry record)
- Reported make and model: CESSNA 305A
- Category: Airplane
- Serial number: 305A-22301
- Airframe hours: 9218
- Engines: CONTINENTAL O-470-11B 213 horsepower reciprocating
- Damage: Substantial damage
- Flight: Other work use, Part 91
- Operator: Soaring Society Of Dayton Inc.
- Registered owner: Soaring Society Of Dayton Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, July 30, 1992
- Departed: 20HP
- Airport: 20H9, Caesar'S Creek

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 40; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: front; flight hours: 2,308 total, 13 in this make and model, 2,230 as pilot in command, 11 in the last 90 days, 4 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: variable at 5 knots, gusting 7
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 70 °F

## 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 19920927038899A](https://openairdocs.org/incident/19920927038899A), Sep 27, 1992: Cessna 305A, Waynesville, OH, Substantial damage. Lost right brake on landing roll. Swerved into a wood platform. Found small leak in brakeline. Fluid depleted.

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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