When and where was ANA Flight NH257 Cylinder Encounter documented?

This encounter was documented on February 11, 1978 in Tokyo–Fukuoka Air Route, Japan, Japan.

What sources and physical claims back the ANA Flight NH257 Cylinder Encounter record?

The ANOMALY archive indexes 1 independent source citations across 2 claims, achieving a provenance completeness score of 100%.

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ENC-002404LANDMARK CASE · HIGH CORROBORATIONDATE PRECISION: exactRECORD COMPLETENESS: 100%

ANA Flight NH257 Cylinder Encounter

February 11, 1978Tokyo–Fukuoka Air Route, Japan, Japan

New Insights reports that the crew of All Nippon Airways Flight NH257 observed a cigar/cylinder-shaped craft while at cruise altitude between Tokyo and Fukuoka.

// LINKED CLASSIFICATIONS:Elongated / Cigar / Cylinder(C-000255)→

Claims are displayed with the source wording, locator, relationship and verification state. Competing claims remain separate rather than being averaged into a single answer.

SOURCE COMPARISON

Encounter · New Insights case observation

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CLAIM-216028reported

“The ANA Flight NH257 crew reportedly observed a cigar-shaped craft about 150 meters below their Boeing 727 while cruising at 31,000 feet; it paced the aircraft at a reported distance of roughly 500 meters, had no visible wings or engines, emitted smoke, then departed.”

Inside the U.S. Government Covert UFO Program: New Insights

SRC-002150 · uploaded PDF pp. 67-67; printed pp. 58-58

SUPPORTS

SOURCE COMPARISON

ANA Flight NH257 Cylinder (1978) · New Insights reported subject characteristics

HOW TO READ THIS →

CLAIM-216029reported

“New Insights describes the object as cigar/cylinder-shaped with no visible wings or engines and says the crew could see it was not an airplane.”

Inside the U.S. Government Covert UFO Program: New Insights

SRC-002150 · uploaded PDF pp. 67-67; printed pp. 58-58

SUPPORTS