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Norwalk mid-air collision

1 Feb 1958 · Norwalk (California, USA)

US Air Force (1611th Air Transport Wing) Douglas DC-6 and US Navy Lockheed P-2 Neptune · Mid-air collision

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Event

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
Event fatalities
48 · all aircraft and ground
Ground fatalities
Unknown
Occupants
Unknown
Survivors
Unknown
InjuriesFatal: death within 30 days. Serious: over 48 hours in hospital within a week, most broken bones, severe bleeding, nerve or organ damage, or serious burns. Minor: anything less. Glossary
Unknown
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
Military

Aircraft 1 · Douglas DC-6

Aircraft type
Douglas DC-6
Category
Airplane · from aircraft type
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
53-3277
Onboard fatalities
41
Route
From Long Beach (California)To McGuire, Wrightstown (New Jersey)

Aircraft 2 · Lockheed P-2 Neptune

Aircraft type
Lockheed P-2
Category
Airplane · from aircraft type
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
127723
Operator
US Navy
Onboard fatalities
6
Occupants
Not stated
Survivors
2
InjuriesFatal: death within 30 days. Serious: over 48 hours in hospital within a week, most broken bones, severe bleeding, nerve or organ damage, or serious burns. Minor: anything less. Glossary
Not stated
Route
From Los Alamitos (California)To Los Alamitos (California)

Cause areas

  • Personnel issues › Task performance

From the investigation findings the Wikipedia article reports, sorted into the NTSB's cause areas with AI assistance.

Approximate · Estimated position: Norwalk, California, the place the Wikipedia article names. Not the accident site.

From the Wikipedia article

The Norwalk mid-air collision was an aviation disaster that occurred on the evening of Saturday, 1 February 1958, in Norwalk (a suburb of Los Angeles). On that day, two American military aircraft collided in the sky over the city: a Douglas C-118A Liftmaster transport and a Lockheed P2V-5F Neptune patrol aircraft, which then crashed onto the city below them and were destroyed. In total, 48 people fell victim to the accident.

Investigation and cause

Cause

The probable cause of the crash was named as a simple error by both crews, who did not exercise sufficient vigilance while flying visually at night and did not prevent the collision.

Translated into English with AI assistance from the Russian Wikipedia article “Столкновение над Норуолком” (revision 152379326, retrieved 2026-09-19) by its authors, under CC BY-SA 4.0. Extracted as plain text: references, tables, images and some sections are left out; the translation may contain errors, and long articles were cut to their first 700 words. Read the article

Sources

Russian Wikipedia article: Столкновение над Норуолком
Article
Столкновение над Норуолком
Translation
Into English with AI assistance; names of linked operators and aircraft types from Wikidata. It may contain errors.
Revision
152379326 · 2026-03-24 · retrieved 2026-09-19
Wikidata
Q20986948
Licence
Text CC BY-SA 4.0, by the article's authors; Wikidata CC0; town positions GeoNames (CC BY 4.0)
Where each value comes from
Record
ru Wikipedia article "Столкновение над Норуолком" (page 5723469, revision 152379326), translated into English with AI assistance
Date
Wikipedia infobox: date
Place and country
Wikipedia infobox: site
Map position
place the Wikipedia infobox site links (Wikidata coordinates)
Aircraft, operator and route
Wikipedia infobox: aircraft type, registration, operator, origin and destination; route airports from the linked airport articles' Wikidata codes (OurAirports)
Operation
operator named as an armed force or military unit in the infobox
Fatalities
Wikipedia infobox: total_fatalities
Ground fatalities
not stated in the Wikipedia infobox
Summary
Wikipedia article lead
Source notes (1)
  • Wikipedia · Facts from the Russian Wikipedia article's infobox, translated into English with AI assistance, not checked against an investigation report. Independent review pending.