# NTSB CHI90LA187: Piper PA-30B, N8095Y, Webster, WI, July 14, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 14, 1990, 16:10 local (21:10 UTC)
- Place: Webster, WI
- Coordinates: 45.869369, -92.360931 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.8694&lon=-92.3609&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 9, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 14716
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI90LA187
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/14716/pdf
- Page: https://openairdocs.org/ntsb/CHI90LA187

## Probable cause

THE FAILURE OF THE NOSE GEAR TRANSMISSION MOUNTING BRACKET WHICH RESULTED IN NOSE GEAR COLLAPSE DURING THE LANDING ROLL.

## Sequence of events

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

- Nose gear collapsed, landing - roll
  - landing gear,normal retraction/extension assembly - failure,partial (cause)

## Analysis

THE PILOT STATED THAT HIS PRE-LANDING CHECKLIST WAS SATISFACTORY, WITH THE GEAR DOWN LIGHT ILLIMINATING AND THE NOSE WHEEL VISIBLE IN THE MIRROR. THE PILOT REPORTED THAT THE MAIN LANDING GEAR TOUCHED DOWN ABOUT 100 FEET PAST THE DISPLACED THRESHOLD, BUT HE 'NEVER FELT THE NOSEGEAR TOUCH...HEARD LEFT PROPELLER STRIKE THE PAVEMENT FIRST.' POST-ACCIDENT EXAMINATION REVEALED THAT THE TRANSMISSION MOUNTING BRACKET IN THE NOSE WHEEL WELL WAS BROKEN OUT OF ITS CHANNEL ASSEMBLY.

## Aircraft

- Registration: [N8095Y](https://openairdocs.org/aircraft/N8095Y), registered now, S/N 30-1213, built 1966 (OpenAirDocs)
- Reported make and model: PIPER PA-30B
- Registry model: [Piper PA-30](https://openairdocs.org/model/piper-pa-30) (registry code 7103002) (OpenAirDocs)
- Registry engine: [Lycoming IO-320 series](https://openairdocs.org/engine/lycoming-io-320-series) (registry code 41509, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 30-1213
- Airframe hours: 2160
- Engines: LYCOMING IO-320-B1A 160 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Joseph V. Davis
- Registered owner: N8095y, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, June 13, 1990, 6 hours before
- Departed: 21D, LAKE ELMO, MN
- Airport: Y05, Voyager Village, runway 22, 3,500 × 55 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 57; commercial; airplane ratings: multi-engine land, single-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 4,790 total, 2,000 in this make and model, 4,445 as pilot in command, 33 in the last 90 days, 19 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 20 statute miles
- Lowest ceiling: 10,000 ft overcast
- Temperature: 12 °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 19900714025839A](https://openairdocs.org/incident/19900714025839A), Jul 14, 1990: Piper PA30, Webster, WI, Substantial damage. Nose gear collapsed on landing roll. Gear transmission mounting bracket was broken out.

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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