# NTSB LAX92LA037: Cessna 180, N2802A, Sacramento, CA, November 4, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: November 3, 1991, 20:30 local (Nov 4, 1991, 04:30 UTC)
- Place: Sacramento, CA
- Coordinates: 38.509956, -121.489562 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.5100&lon=-121.4896&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report March 31, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 27496
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX92LA037
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/27496/pdf
- Page: https://openairdocs.org/ntsb/LAX92LA037

## Probable cause

THE PARTIAL FAILURE OF THE BRAKE SYSTEM DUE TO CONTAMINATION.

## Sequence of events

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

- Airframe/component/system failure/malfunction, taxi - from landing
  - landing gear,normal brake system - contamination (cause)
  - maintenance,annual inspection - inadequate, other maintenance personnel
  - landing gear,normal brake system - failure,partial (cause)
  - brakes(normal) - unavailable, pilot in command (cause)
- On ground/water collision with object, taxi - from landing
  - object - building(nonresidential)

## Analysis

FOLLOWING AN UNEVENTFUL LANDING, THE PILOT TAXIED TO PARKING AND APPLIED PRESSURE TO THE BRAKE PEDALS.  THE RIGHT BRAKE FAILED, AND THE AIRPLANE COLLIDED WITH A HANGAR. EXAM OF THE BRAKE SYSTEM REVEALED AN ACCUMULATION OF ALUMINUM PARTICLES IN THE MASTER CYLINDER, AND ITS OPERATION WAS INTERMITTENT. THE PILOT HAD OPERATED HIS AIRPLANE FOR 79.8 HOURS SINCE IT LAST RECEIVED AN ANNUAL INSPECTION.

## Aircraft

- Registration: [N2802A](https://openairdocs.org/aircraft/N2802A), registered now, S/N 30002, built 1953 (OpenAirDocs)
- Reported make and model: CESSNA 180
- Registry model: [Cessna 180](https://openairdocs.org/model/cessna-180) (registry code 2072602) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 30002
- Airframe hours: 4142
- Engines: CONTINENTAL O-470-J 225 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Elson Hamilton
- Registered owner: Elson Hamilton
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, April 14, 1991, 80 hours before
- Departed: O20, LODI, CA
- Airport: SAC, Sacramento Executive

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 52; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; flight hours: 1,351 total, 1,099 in this make and model, 1,269 as pilot in command, 60 in the last 90 days, 28 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Night/bright
- Wind: calm
- Visibility: 35 statute miles
- Lowest ceiling: none
- Temperature: 64 °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 19911103048739A](https://openairdocs.org/incident/19911103048739A), Nov 3, 1991: Cessna 180, Sacramento, CA, Substantial damage. Lost right brake on landing roll. Struck a hangar. Lock o seal ruptured in master cylinder.

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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