# NTSB LAX91LA063: Cessna 172, N739ZV, Tucson, AZ, December 30, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: December 30, 1990, 13:28 local (20:28 UTC)
- Place: Tucson, AZ
- Coordinates: 32.150287, -110.92926 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=32.1503&lon=-110.9293&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report December 30, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 27084
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX91LA063
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/27084/pdf
- Page: https://openairdocs.org/ntsb/LAX91LA063

## Probable cause (aircraft 2)

BOTH PILOTS USED POOR VISUAL LOOKOUT PROCEDURES.

## Sequence of events

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

- On ground/water collision with object, taxi - from landing
  - object - aircraft moving on ground
  - visual lookout - poor, pilot in command (cause)
  - visual lookout - poor, pilot of other aircraft (cause)
- On ground/water collision with object, taxi - from landing
  - visual lookout - poor, pilot in command (cause)
  - visual lookout - poor, pilot of other aircraft (cause)

## Analysis (aircraft 2)

BOTH AIRPLANES LANDED ON RUNWAY 06. THE CESSNA AIRPLANE WAS CLEARED TO TAXI SOUTHEAST ON TAXIWAY 2 AND THE MOONEY WAS CLEARED TO TAXI SOUTHWEST ON TAXIWAY B. BOTH PILOTS USED POOR VISUAL LOOKOUT PROCEDURES AND COLLIDED NEARLY HEAD-ON AT THE INTERSECTION OF TAXIWAY 2 AND TAXIWAY B.

## Aircraft 1

- Registration: [N739ZV](https://openairdocs.org/deregistered/N739ZV-2004-04-01), registration cancelled 2004-04-01, S/N 17270945, built 1978 (OpenAirDocs)
- Reported make and model: CESSNA 172
- Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (registry code 2072434) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 17270933
- Engines: LYCOMING O-320-H2AD 160 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Jerome Katz
- Airport: RYN, Ryan, runway 6, 5,504 × 75 ft, asphalt

## Aircraft 2

- Registration: [N3567H](https://openairdocs.org/deregistered/N3567H-2018-08-13), registration cancelled 2018-08-13, S/N 25-0423 (OpenAirDocs)
- Reported make and model: MOONEY M20K
- Registry model: [Mooney M20K](https://openairdocs.org/model/mooney-m20k) (registry code 5870220) (OpenAirDocs)
- Registry engine: [Continental TSIO-360 series](https://openairdocs.org/engine/continental-tsio-360-series) (registry code 17019, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 5870220
- Engines: CONTINENTAL TSIO-360 210 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Lee, Hoover
- Airport: RYN, Ryan, runway 6, 5,504 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot, aircraft N739ZV; age 51; private; airplane ratings: single-engine land; medical: unknown, unknown
- Pilot, aircraft N3567H; age 57; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 350 total, 50 in this make and model, 250 as pilot in command, 30 in the last 90 days, 20 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: -0 °F, dew point -0 °F

## FAA reports on this event (2)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19901230056452A](https://openairdocs.org/incident/19901230056452A), Dec 30, 1990: Cessna 172N, Tucson, AZ, Substantial damage. Taxiing on intersecting taxiways was struck at intersection by N3567H on its left entering taxiway and failed yield
- [Accident 19901230056451A](https://openairdocs.org/incident/19901230056451A), Dec 30, 1990: Mooney M20K, Tucson, AZ, Substantial damage. Taxiing on intersecting taxiways failed to see or give way to N739ZV on its right approaching intersection. Collided

## Other investigations on N739ZV (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 LAX02LA269](https://openairdocs.org/ntsb/LAX02LA269), Aug 31, 2002: Cessna 172N (N739ZV), Lakeside, CA, substantial damage. Probable cause: The failure of the engine to respond for undetermined reasons. Also causal was the student's decision to continue the simulated emergency maneuver to an altitude that was insufficient to allow for…

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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