# NTSB LAX84LA242: Cessna 210, N9889M, Tucson, AZ, April 4, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 4, 1984, 11:27 local (19:27 UTC)
- Place: Tucson, AZ
- Coordinates: 32.150691, -110.929992 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=32.1507&lon=-110.9300&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 24223
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX84LA242
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/24223/pdf
- Page: https://openairdocs.org/ntsb/LAX84LA242

## Sequence of events

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

- Airframe/component/system failure/malfunction, cruise - normal
  - door,landing gear - failure,partial (cause)
  - maintenance,service bulletin/letter - not followed, other maintenance personnel (cause)
  - hydraulic system,fitting - failure,partial (cause)
- In flight collision with terrain/water, landing - flare/touchdown
  - fluid,hydraulic - exhaustion (cause)
  - landing gear,normal retraction/extension assembly - inoperative (cause)
  - gear extension - not possible, pilot in command (cause)
  - wheels up landing - performed, pilot in command

## Analysis

THE ACFT HAD A HYDRAULIC LINE FAILURE DURING AN ATTEMPT TO LOWER THE LANDING GEAR. THE HYDRAULIC FLUID WAS LOST AND A GEAR UP LANDING WAS MADE. THE RETAINING RING OF THE MAIN DOOR ACTUATOR HAD FAILED ALLOWING THE PISTON TO POP OUT OF THE ACTUATOR. THERE WAS A SERVICE LETTER CONCERNING THE CIRCLIP (RETAINING RING) INSPECTION AND REPLACEMENT DETAIL.

## Aircraft

- Registration: N9889M (not matched to a registry record)
- Reported make and model: CESSNA 210
- Category: Airplane
- Serial number: 62085
- Airframe hours: 1064
- Engines: CONTINENTAL IO-520 L3A 310 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Joseph D. Western Soil
- Airworthiness certificate: Standard, Normal
- Departed: FMN, FARMINGTON, NM
- Destination: TUS, TUCSON, AZ
- Airport: TSA, Tucson, runway 11R, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 31; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 3,000 total, 700 in this make and model, 2,750 as pilot in command, 160 in the last 90 days, 50 in the last 30 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 140° at 5 knots
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 77 °F, dew point 12 °F
- Altimeter: 29.00 inHg

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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