# NTSB LAX83LA197: Maule M-5-220C, N51630, Young, AZ, April 17, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 17, 1983, 14:00 local (21:00 UTC)
- Place: Young, AZ
- Coordinates: 34.079311, -111.009147 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.0793&lon=-111.0091&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): 23683
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX83LA197
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/23683/pdf
- Page: https://openairdocs.org/ntsb/LAX83LA197

## Sequence of events

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

- Airframe/component/system failure/malfunction, landing - roll
  - landing gear,normal brake system - failure,partial (cause)
  - hydraulic system,seal - failure,total (cause)
- Loss of control - on ground/water, landing - roll
  - ground loop/swerve - intentional, pilot in command (contributing factor)
- Main gear collapsed, landing - roll
  - landing gear - overload

## Analysis

THE PLT REPORTED THAT THE LANDING WAS NORMAL, & AS HE APPLIED BRAKES THE RIGHT BRAKE FAILED. HE INTENTIONALLY APPLIED HARD LEFT BRAKE TO NEGOTIATE A GROUND-LOOP TO AVOID TREES AT THE END OF THE RWY. DISASSEMBLY OF THE RIGHT MASTER BRAKE CYLINDER REVEALED THAT ONE OF THE O-RINGS WAS BROKEN IN TWO PIECES.

## Aircraft

- Registration: N51630 (not matched to a registry record)
- Reported make and model: MAULE M-5-220C
- Category: Airplane
- Serial number: 2300
- Airframe hours: 1234
- Engines: FRANKLIN 6A-350-C1 220 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Michael Frey
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, June 14, 1982, 96 hours before
- Departed: E69, PAYSON, AZ
- Airport: 49E, Waldrip, runway 6, 4,200 × 60 ft, dirt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 35; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 790 total, 207 in this make and model, 662 as pilot in command, 5 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 100° at 10 knots
- Visibility: 40 statute miles
- Lowest ceiling: none
- Temperature: 91 °F, dew point 21 °F
- Altimeter: 29.00 inHg
- Observed at: PHX, 65 nm away

## 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 19830417014379A](https://openairdocs.org/incident/19830417014379A), Apr 17, 1983: Maule M5220C, Young, AZ, Substantial damage. Right brake failed and pilot purposely ground looped aircraft to avoid trees at end of runway.

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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