# NTSB MIA90LA004: Maule M-4-220C, N40340, Orlando, FL, October 6, 1989

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: October 6, 1989, 16:10 local (20:10 UTC)
- Place: Orlando, FL
- Coordinates: 28.560848, -81.349128 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=28.5608&lon=-81.3491&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 5, 1990
- Report: Approved by Office Director
- NTSB case key (mKey): 32588
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA90LA004
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/32588/pdf
- Page: https://openairdocs.org/ntsb/MIA90LA004

## Probable cause

FAILURE OF THE LEFT MAIN LANDING GEAR.

## Sequence of events

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

- Main gear collapsed, landing - roll
  - landing gear,main gear - failure,total (cause)

## Analysis

THE PLT LANDED ON RWY 7 WITH A WIND FROM 110 DEG AT 8 KTS. HE STATED THAT AFTER TOUCHDOWN, HE SENSED THE LEFT SIDE OF THE ACFT WAS LOWER THAN IT SHOULD BE. AS HE APPLIED BRAKES, THE LEFT BRAKE WAS INEFFECTIVE. SUBSEQUENTLY, THE LEFT MAIN GEAR COLLAPSED & THE ACFT CAME TO REST IN THE MIDDLE OF THE RWY.

## Aircraft

- Registration: [N40340](https://openairdocs.org/deregistered/N40340-2012-11-15), registration cancelled 2012-11-15, S/N 2115C, built 1972 (OpenAirDocs)
- Reported make and model: MAULE M-4-220C
- Registry model: [Maule M-4-220C](https://openairdocs.org/model/maule-m-4-220c) (registry code 5460114) (OpenAirDocs)
- Registry engine: [Franklin 6V 350 series](https://openairdocs.org/engine/franklin-6v-350-series) (registry code 27043, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 2115C
- Engines: FRANKLIN 6A-350-C1 220 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Unknown
- Departed: 40X, ORLANDO, FL
- Destination: ORL
- Airport: ORL, Orlando Executive, runway 7, 4,638 × 100 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 74; private; airplane ratings: single-engine land, single-engine sea; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; flight hours: 1,303 total, 771 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 110° at 8 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: -0 °F, dew point -0 °F
- Observed at: ORL

## 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 19891006042479A](https://openairdocs.org/incident/19891006042479A), Oct 6, 1989: Maule M4220C, Orlando, FL, Substantial damage. Ground looped on landing roll and collapsed left main gear. Quartering crosswind a factor.

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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