# NTSB LAX82DA121: Cessna 150G, N4816X, Tucson, AZ, March 28, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: March 28, 1982, 07:30 local (14:30 UTC)
- Place: Tucson, AZ
- Coordinates: 32.32957, -110.979713 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=32.3296&lon=-110.9797&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 28, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 72866
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX82DA121
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/72866/pdf
- Page: https://openairdocs.org/ntsb/LAX82DA121

## Sequence of events

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

- Loss of engine power(partial) - mech failure/malf, maneuvering
  - exhaust system,gasket - failure,total (cause)
- Loss of control - on ground/water, landing - roll
  - precautionary landing - performed, pilot in command
  - weather condition - unfavorable wind (contributing factor)
  - weather condition - gusts (contributing factor)
  - compensation for wind conditions - improper, pilot in command (cause)
  - lack of total experience, pilot in command (contributing factor)
  - ground loop/swerve - inadvertent, pilot in command
- Main gear collapsed, landing - roll
  - landing gear,axle - failure,total (cause)
  - landing gear,main gear strut - overload (contributing factor)

## Analysis

DURING FLIGHT, THE STUDENT PILOT HEARD A LOUD NOISE FROM THE ENGINE AND LANDED AT A NEARBY AIRPORT. HE REPORTED THAT DURING THE LANDING, A GUST OF WIND WAS ENCOUNTERED, THE LEFT WING CAME UP AND THE NOSE VEERED LEFT. AT THAT TIME, THE RIGHT SPINDLE ATTACHMENT BROKE AND THE STRUT DUG INTO THE PAVEMENT AND CAME THROUGH THE FLOOR. THE ENGINE NOISE WAS FROM A BLOWN EXHAUST GASKET ON THE NUMBER ONE CYLINDER. THE PILOT REPORTED THAT THE WIND WAS SHIFTING AND GUSTING TO 15 KNOTS.

## Aircraft

- Registration: [N4816X](https://openairdocs.org/deregistered/N4816X-2013-08-15), registration cancelled 2013-08-15, S/N 15064866, built 1966 (OpenAirDocs)
- Reported make and model: CESSNA 150G
- Registry model: [Cessna 150G](https://openairdocs.org/model/cessna-150g) (registry code 2071816) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 15064866
- Airframe hours: 2935
- Engines: CONTINENTAL O-200 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: David G. Lepo
- Registered owner: David G. Lepo
- Departed: RYN, TUCSON, AZ
- Destination: RYN, TUCSON, AZ
- Airport: E14, Avra Valley, runway 12, 3,000 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 34; student; medical: class 3, valid medical--no waivers/lim.; flight hours: 46 total, 46 in this make and model, 16 as pilot in command, 17 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: variable at 12 knots
- Temperature: 140 °F
- Altimeter: 29.00 inHg

## 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 19820328006599A](https://openairdocs.org/incident/19820328006599A), Mar 28, 1982: Cessna 150G, Tucson, AZ, Substantial damage. Student pilot lost directional control during landing after hearing suspicious engine noise.

## Other investigations on N4816X (1)

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.

- [NTSB LAX79DUJ40](https://openairdocs.org/ntsb/LAX79DUJ40), Dec 27, 1978: Cessna 150 (N4816X), Tucson, AZ, substantial damage

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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