# NTSB MKC87LA031: Cessna 180, N26DL, Olathe, KS, December 11, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: December 11, 1986, 10:34 local (16:34 UTC)
- Place: Olathe, KS
- Coordinates: 38.879188, -94.809829 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.8792&lon=-94.8098&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 34330
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC87LA031
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34330/pdf
- Page: https://openairdocs.org/ntsb/MKC87LA031

## Sequence of events

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

- Gear collapsed, landing - roll
  - landing gear,main gear - fatigue (cause)
  - maintenance,annual inspection - inadequate, other maintenance personnel (cause)
  - procedures/directives - inadequate, airport personnel (contributing factor)

## Analysis

DURING LANDING AIRPLANE BALLOONED DUE TO WIND GUST. AFTER TOUCHDOWN. AIRPLANE VEERED LEFT AND DUIRNG PILOT'S CORRECTION, THE LEFT MAIN LANDING GEAR LEG BROKE OFF. METALLURGICAL EVALUATION REVEALED A PREVIOUS FATIGUE FAILURE IN THE FRACTURE SURFACE.

## Aircraft

- Registration: N26DL (not matched to a registry record)
- Reported make and model: CESSNA 180
- Category: Airplane
- Serial number: 32544
- Airframe hours: 5503
- Engines: CONTINENTAL IO-470 225 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: David B. Hayden
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, March 18, 1986
- Departed: OJC, OLATHE, KS
- Destination: IXD, OLATHE, KS
- Airport: IXD, Johnson County Industrial, runway 17, 7,339 × 190 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 62; commercial, flight instructor; airplane ratings: single-engine sea, multi-engine land, single-engine land, multi-engine sea; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: right; flight hours: 18,503 total, 122 in this make and model, 18,148 as pilot in command, 34 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 240° at 12 knots, gusting 18
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 36 °F
- Altimeter: 30.00 inHg
- Observed at: IXD

## 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 19861211086009A](https://openairdocs.org/incident/19861211086009A), Dec 11, 1986: Cessna 180, Olathe, KS, Substantial damage. The left main gear collapsed when the aircraft veered on rollout. A fatigue fracture was found on the broken leg.

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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