Northwest Orient Airlines Flight 2501

Cause

At the time of the last contact Flight 2501 was entering a squall line and turbulence. Since the plane's wreckage underwater has not been found, the cause of the crash has not been determined. There is output from a hindcast simulation of the possible weather conditions during the event. The incident was reported on June 25, 1950, by The New York Times with dateline of June 24 as follows:

Aftermath

The missing airliner became the subject of an annual search by Michigan Shipwreck Research Associates (MSRA), a Michigan-based non-profit organization. The search effort began in 2004 as a joint venture between author and explorer Clive Cussler and the MSRA. Cussler ended his involvement in 2013, but sent his side-scan sonar operator, Ralph Wilbanks, back to Michigan in 2015, 2016, and 2017 to follow some leads discovered by MSRA, which turned out to be a field of construction debris and a lost load of scrap metal. MSRA continued the search each year through 2024. In total, the organization covered about 600 sqmi, locating nine never-before-discovered shipwrecks, but not the wreckage of Flight 2501.

In September 2008, MSRA affiliate Chriss Lyon, investigating the crash of Flight 2501, found an unmarked grave that a sexton register indicated contains the remains of some of the 58 victims. Valerie van Heest, MSRA co-director and author of the book Fatal Crossing, says human remains floating offshore and recovered by the Coast Guard were buried in that mass grave in the Riverview Cemetery in St. Joseph without the knowledge of the victims' families, and the grave was never marked. In 2008, Van Heest of MSRA organized a ceremony at the cemetery to unveil a large black granite marker, donated by Filbrandt Family Funeral Home, that lists the names of the 58 and the words "In Memory of Northwest Flight 2501, June 23, 1950. Gone but Never Forgotten." About 10 families of the victims were able to attend the ceremony.

Another mass burial site was discovered in 2015 at Lakeview Cemetery in South Haven by cemetery sexton Mary Ann Frazier and her mother, Beverly Smith, working on a genealogy project. It contains the remains of victims found along the beaches of South Haven. That grave, also, had long been unmarked. Frazier contacted van Heest and together they planned a memorial service before the 65th anniversary. Filbrandt organized the service, which was led by Pastor Robert Linstrom. St. Joe Monument Works donated a marker for the gravesite; it was delivered to the cemetery a few days before the 65th anniversary of the crash. On June 24, 2015, a remembrance service was held at the grave site. Van Heest delivered a speech about the victims, and South Haven Mayor Robert Burr, along with Craig Rich from the MSRA, read off all of the 58 victims' names. After each name was read, a bell was rung.

The crash, van Heest's work to locate and contact the families of the victims, and the MSRA search effort was featured on an episode of the Discovery Channel program Expedition Unknown (season 8, episode 2), which aired on February 12, 2020.

The crash was featured on an episode of the History Channel program The Unbelievable with Dan Aykroyd (season 1, episode 1), which aired on December 1, 2023.

A 20-year search for the wreckage was suspended in June 2025. The searchers surmised that the plane broke into small pieces and sank into the muck.

References

References

1. (June 25, 1950). "58 FEARED LOST IN CRASH OF AIRLINER IN LAKE MICHIGAN; HUNT PROVES FUTILE; MANY FROM NEW YORK AREA ARE ABOARD; OIL SLICKS SIGHTED Plane from New York Runs Into Storm While on Trip to the West DIVER SEARCHES IN VAIN Report of 'Wreckage' Untrue --Loss May Be the Worst on Commercial Airlines". The New York Times.
2. {{ASN accident
3. [http://www.michiganshipwrecks.org/shipwrecks-2/shipwreck-categories/airplane-losses-lost-and-found/northwest-airlines-flight-2501-dc4 Michigan Shipwrecks website]
4. "The Disappearance of Flight 2501". [[Michigan Shipwreck Research Associates]].
5. "WRF-ARW Research Model Run Output".
6. Eckel, George. (June 25, 1950). "58 Feared Lost in Crash of Airliner in Lake Michigan; Hunt Proves Futile; Many from New York Area are Aboard". [[The New York Times]].
7. Van Heest, V.O. ''Fatal Crossing: The Mysterious Disappearance of NWA Flight 2501 and the Quest for Answers''. In-Depth Editions, 2012
8. (September 12, 2008). "New developments in mysterious Michigan plane crash". wzzm13.com.
9. Jones, Meg. (March 10, 2014). "Volunteers try to solve mystery of 1950 plane crash in Lake Michigan".
10. Van Heest, V.O. ''Fatal Crossing: The Mysterious Disappearance of NWA Flight 2501 and the Quest for Answers''. In-Depth Editions, 2012
11. (23 November 2015). "New mass grave found for victims of NWA Flight 2501". WZZM 13 News.
12. "Discovery Channel Show To Study Lake Michigan Plane Crash".
13. (June 25, 2025). "Search ends for plane 75 years after the then-worst crash in US history".
14. Kavi, Aishvarya. (June 25, 2025). "75 Years After a Deadly Plane Crash, the Search for Its Wreckage Ends".