Within False Alarms
Was Flight 53 Tracking a Craft or Clutter?
The 1987 radar return near McGrath looked fast and unusual, but clutter, changing range and missing ground coverage prevented confirmation.
On this page
- What the pilots saw on airborne weather radar
- How range changes and mountain clutter affected the return
- Why the FAA could not confirm a solid object
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Introduction
On 29 January 1987, the crew of Alaska Airlines Flight 53 reported an unusual radar target while flying west of McGrath, Alaska. The return appeared on the aircraft’s onboard weather radar and seemed to move at an exceptionally high speed. At first glance, the incident looked like another puzzling Alaska aviation UFO case. Yet the evidence that emerged afterwards pointed in a different direction: investigators could not confirm that the radar return represented a real, solid object. Instead, limitations of airborne radar, changing display ranges, mountain interference and the lack of corroborating ground radar data left the event unresolved but far from compelling evidence of an unknown craft.[The Black Vault Documents]documents.theblackvault.comThe flight crew reported that the target on their radar moved at a very high rate of speed…Read more…
The Flight 53 case remains important because it illustrates a recurring theme in Alaska’s UFO history. Even experienced airline crews can encounter radar contacts that appear extraordinary in real time but become much harder to interpret once investigators examine how the equipment and environment behaved.
What the pilots saw on airborne weather radar
Flight 53 was travelling from Nome to Anchorage at about 35,000 feet when the crew noticed an unexpected target on their weather radar. According to later FAA documentation, the radar contact appeared roughly west of McGrath and seemed to move across the display at a remarkable rate. The crew estimated that it advanced about five miles between successive radar sweeps, creating the impression of a very fast-moving object.[The Black Vault Documents]documents.theblackvault.comThe flight crew reported that the target on their radar moved at a very high rate of speed…Read more…
The report attracted attention partly because it came only weeks after the widely publicised Japan Air Lines Flight 1628 incident over Alaska. Pilots and controllers in the region were already alert to unusual aerial reports, making any unexplained radar contact especially noteworthy.[UPI]upi.comFinal FAA report can't explain UFO sightingFinal FAA report can't explain UFO sighting - UPI ArchivesMar 6, 1987 — The FAA also released a report of a UFO sighting Jan. 29 picke…
However, unlike a confirmed aircraft track observed simultaneously by multiple systems, the Flight 53 target was primarily an onboard radar observation. That distinction became crucial once investigators began examining what the radar was actually showing.
How range changes and mountain clutter affected the return
The strongest sceptical explanation focuses on the behaviour of the weather radar itself rather than on the existence of a physical object.
According to FAA-related documentation, the target moved toward the edge of the radar display. As it did so, the crew changed the radar scale from a 50-mile range setting to a 100-mile range setting in an attempt to continue tracking it. The target reportedly appeared briefly on the new scale before disappearing into what investigators described as ground clutter associated with the Alaska Range.[The Black Vault Documents]documents.theblackvault.comThe flight crew reported that the target on their radar moved at a very high rate of speed…Read more…
This detail matters because weather radar is designed primarily to detect precipitation and terrain reflections, not to serve as a precision air-search radar. When operators change range settings, the display is rescaled and weak or ambiguous returns can appear to jump, shift position or vanish. A target near the limit of detection may look more dramatic than it actually is.[The Black Vault Documents]documents.theblackvault.comThe flight crew reported that the target on their radar moved at a very high rate of speed…Read more…
Alaska presents additional challenges. Mountainous terrain can generate strong radar echoes, especially when viewed at long distances or shallow angles. Radar systems may also receive reflections from weather, ice crystals and other environmental features. Historical descriptions of Alaska’s radar network note that radar installations routinely had to contend with unwanted echoes from landforms, weather and other non-aircraft sources.[Alaska Department of Natural Resources]dnr.alaska.govAlaska Department of Natural ResourcesHistory of the Aircraft Control and Warning System in AlaskaAlthough radar can detect desired objec…
In practical terms, a radar return that appears to race across a display is not automatically evidence of a high-speed craft. The apparent motion may be influenced by display geometry, range adjustments, intermittent reflections or clutter entering and leaving the radar beam.
Why the FAA could not confirm a solid object
The key finding of the investigation was not that an extraordinary object had been detected. It was that investigators lacked enough evidence to establish what the target was.
FAA records indicate that controllers checked with military authorities and found no known aircraft operating in the area that matched the report. Yet the absence of a known aircraft did not prove the presence of an unknown one. Investigators also lacked a continuous, independently verified radar track showing a coherent object moving through the airspace.[The Black Vault Documents]documents.theblackvault.comThe Black Vault Documentsinterview with crewFlight 53 (AS53) at approximately 40W MCG on January, 30 1987 at 0340 UTC. My name…Read more…
The target was never conclusively correlated with a ground-based radar track. Without that confirmation, investigators could not determine its altitude, true speed, size or direction of travel. The available evidence showed only that an unusual return appeared on the aircraft’s radar display.[The Black Vault Documents]documents.theblackvault.comThe flight crew reported that the target on their radar moved at a very high rate of speed…Read more…
This distinction is often lost in later retellings. A radar contact is not automatically equivalent to a verified object. Aviation investigators generally seek corroboration from multiple sensors, independent radar sites, visual observations or a sustained track history before treating a contact as a genuine aircraft or physical target. The Flight 53 case never reached that level of confirmation.[The Black Vault Documents]documents.theblackvault.comThe flight crew reported that the target on their radar moved at a very high rate of speed…Read more…
What the case tells us about Alaska UFO reports
Flight 53 is best understood as a cautionary example rather than a strong UFO case. The pilots appear to have reported what they genuinely observed, and there is no evidence of misconduct or fabrication. The difficulty lies in determining whether the radar return represented a real airborne object or an artefact created by the interaction of radar equipment, terrain and environmental conditions.[The Black Vault Documents]documents.theblackvault.comThe flight crew reported that the target on their radar moved at a very high rate of speed…Read more…
The incident fits a broader pattern seen in Alaska aviation reports. Vast distances, mountainous terrain, incomplete radar coverage and challenging atmospheric conditions can produce observations that seem extraordinary in the cockpit but become much less certain under investigation. Even experienced crews can encounter ambiguous radar contacts that cannot be reliably reconstructed afterwards.[Alaska Department of Natural Resources]dnr.alaska.govAlaska Department of Natural ResourcesHistory of the Aircraft Control and Warning System in AlaskaAlthough radar can detect desired objec…
For that reason, the most defensible conclusion is not that Flight 53 tracked an unknown craft, nor that investigators definitively solved the mystery. Rather, the available evidence suggests that clutter, changing radar ranges and the absence of confirming ground-radar coverage prevented anyone from establishing that a solid object was ever present. The case remains an instructive example of why unusual Alaska sightings can fool even highly trained witnesses.[The Black Vault Documents]documents.theblackvault.comThe flight crew reported that the target on their radar moved at a very high rate of speed…Read more…
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Endnotes
1.
Source: upi.com
Title: Final FAA report can’t explain UFO sighting
Link:https://www.upi.com/Archives/1987/03/06/Final-FAA-report-cant-explain-UFO-sighting/4541542005200/
Source snippet
Final FAA report can't explain UFO sighting - UPI ArchivesMar 6, 1987 — The FAA also released a report of a UFO sighting Jan. 29 picke...
2.
Source: upi.com
Title: FAA reopens UFO probe
Link:https://www.upi.com/Archives/1987/01/03/FAA-reopens-UFO-probe/9716536648400/
Source snippet
FAA reopens UFO probe - UPI Archives3 Jan 1987 — An unknown object appeared on radar screens monitored by the Anchorage Air Route Traf...
3.
Source: dnr.alaska.gov
Link:https://dnr.alaska.gov/parks/oha/publications/histaircontrol.pdf
Source snippet
Alaska Department of Natural ResourcesHistory of the Aircraft Control and Warning System in AlaskaAlthough radar can detect desired objec...
4.
Source: upi.com
Title: Radar review fails to confirm UFO
Link:https://www.upi.com/Archives/1987/01/08/Radar-review-fails-to-confirm-UFO/8875537080400/
5.
Source: faa.gov
Title: Civil Aviation Policy in Alaska
Link:https://www.faa.gov/sites/faa.gov/files/about/office_org/headquarters_offices/arc/Civil_Aviation_Policy_in_Alaska.pdf
6.
Source: documents.theblackvault.com
Link:https://documents.theblackvault.com/documents/ufos/jal1628/733667-001-024.pdf
Source snippet
The flight crew reported that the target on their radar moved at a very high rate of speed...Read more...
7.
Source: documents.theblackvault.com
Title: The Black Vault Documentsinterview with crew
Link:https://documents.theblackvault.com/documents/ufos/jal1628/733667-001-030.pdf
Source snippet
Flight 53 (AS53) at approximately 40W MCG on January, 30 1987 at 0340 UTC. My name...Read more...
Additional References
8.
Source: ufointel.ai
Link:https://ufointel.ai/documents/cmqg4iyjt00gk0imqckqva7ye
Source snippet
733667-001-030-0008 - UFOIntelThis document details a radar sighting by the crew of an Alaska Airlines flight on January 29, 1987, where...
Published: January 29, 1987
9.
Source: thisawfulawesomelife.com
Link:https://www.thisawfulawesomelife.com/home/2024/10/1/the-alaska-triangle-by-robin-barefield
Source snippet
This Awful-Awesome LifeThe Alaska Triangle by Robin Barefield1 Oct 2024 — On January 29, 1987, the crew of Alaska Airlines Flight 53 sigh...
Published: January 29, 1987
10.
Source: youtube.com
Link:https://www.youtube.com/watch?v=Oz-oYFX-3cs
Source snippet
Pilots Speak Out (Full Episode) | UFOs: Investigating the Unknown | National Geographic...
11.
Source: youtube.com
Link:https://www.youtube.com/watch?v=6LNnWxi_lw4
Source snippet
Pilot Reports a UFO Just Flying By his Plane...
12.
Source: youtube.com
Title: Japan Airlines Saw a UFO Bigger Than an Aircraft Carrier | Kevin Knuth
Link:https://www.youtube.com/watch?v=J3uHbff-GRw
Source snippet
An Out of This World Encounter | Japan Air Lines Flight 1628...
13.
Source: youtube.com
Title: Pilot Encounters Flying Object The Size Of 4 Aircraft Carriers!
Link:https://www.youtube.com/watch?v=D7ECp2Ldtpw
Source snippet
Japan Airlines Saw a UFO Bigger Than an Aircraft Carrier | Kevin Knuth...
14.
Source: arxiv.org
Link:https://arxiv.org/abs/2305.18566
15.
Source: cia.gov
Link:https://www.cia.gov/readingroom/document/cia-rdp81r00560r000100010001-0
16.
Source: instagram.com
Link:https://www.instagram.com/reel/DZxmsi6lBt_/
17.
Source: facebook.com
Link:https://www.facebook.com/groups/348704483442978/posts/721022889544467/