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LAX88FA094 · Cessna 172

23 Jan 1988 · Temple City, CA, United States

Cessna 172 and Cessna 411 · Accident: midair collision en route

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Event

NTSB case
LAX88FA094
Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
Completed
API-reported fatalities
2 · all aircraft and ground
Ground fatalities
0
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
General aviation
WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
Visual Meteorological Cond

Aircraft 1 · Cessna 172

Aircraft type
Cessna 172
Category
Airplane
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N5113A
Operator
Unknown
Onboard fatalities
Unknown
Route
From L66 · Corona, CATo Van Nuys Airport (VNY), Van Nuys, CA
Aircraft age
Not recorded
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 91: General Aviation
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
En route · cruise
First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Midair collision
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Destroyed

Aircraft 2 · Cessna 411

Aircraft type
Cessna 411
Category
Airplane
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N63CA
Operator
Unknown
Onboard fatalities
Unknown
Route
From Fullerton Municipal Airport (FUL), Fullerton, CATo Van Nuys Airport (VNY), Van Nuys, CA
Aircraft age
Not recorded
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 91: General Aviation
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
En route · cruise
First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Midair collision
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Substantial

Cause areas

  • Pilot in command › Visual lookout, inadequate
  • Pilot of other aircraft › Visual lookout, inadequate

Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.

NTSB narrative

A TWIN CESSNA COLLIDED WITH A SINGLE ENGINE CESSNA FROM THE SINGLE ENGINE CESSNA'S 7 O'CLOCK POSITION. THE SINGLE ENGINE CESSNA CRASHED AND THE TWIN CESSNA LANDED WITHOUT FURTHER INCIDENT. BOTH AIRPLANES WERE CONDUCTING VISUAL FLIGHT RULES PERSONAL FLIGHTS TO VAN NUYS, CA. THE SINGLE ENGINE CESSNA 172 WAS RECEIVING TRAFFIC ADVISORIES FROM BURBANK TRACON. THE TWIN ENGINE CESSNA HAD DEPARTED FULLERTON AND WAS FLYING A CIRCUITOUS ROUTE TO VAN NUYS IN ORDER TO AVOID THE AIRPORT RADAR SERVICE AREA. THE SINGLE ENGINE CESSNA WAS TRANSPONDER EQUIPPED BUT WITHOUT MODE C CAPABILITY. THE TWIN ENGINE CESSNA WAS EQUIPPED WITH, AND USING, A TRANSPONDER WITH MODE C CAPABILITY. THE RADAR DATA STUDY REVEALED THAT THE TWIN ENGINE CESSNA WAS DISPLAYED ON THE CONTROLLER'S RADAR SCOPE FOR ABOUT 4 MINUTES BEFORE THE COLLISION. THE CONTROLLER DID NOT WARN THE SINGLE ENGINE CESSNA PILOT OF THE CONVERGING TRAFFIC. THE TRACON WAS NOT PROGRAMMED TO ALERT THE CONTROLLER OF A CONFLICT BETWEEN A TRACKED (C-172) AND UNTRACKED (C-411) TARGET.

Probable cause

PILOT OF N63CA IMPROPER VISUAL LOOK-OUT. CONTRIBUTING TO THIS ACCIDENT WAS THE CONTROLLER'S FAILURE TO OBSERVE THE FASTER MOVING AIRPLANE APPROACHING THE SINGLE ENGINE CESSNA FROM THE REAR.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record LAX88FA094
Event ID
20001213X24919
Case number
LAX88FA094
Dataset
historical-pre2008
Source SHA-256
89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
  • Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
  • Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
  • The date is the local date, which is the same as the UTC date the NTSB stores.
  • API snapshot SHA-256: 35360ec00a0319917b2b0e5096f96519031ad89b73a2ccf24a6a3a109785ee6e; retrieved 2026-09-21T03:50:02.095Z.