avia.wikisort.org - Event

United Airlines Flight 823 was a scheduled flight from Philadelphia International Airport, Pennsylvania to Huntsville International Airport, Alabama with 39 on board. On July 9, 1964 at approximately 18:15 EST, the aircraft, a Vickers Viscount 745D, registration N7405,[2] crashed 2.25 mi (3.62 km) northeast of Parrottsville, Tennessee after experiencing an uncontrollable fire on board, killing all 39.[1]^: 3 The fire of unknown origin occurred in the passenger cabin.[1]^: 14–15 One passenger abandoned the aircraft through the No.4 escape window prior to impact but did not survive the free-fall. Among the victims was Durant da Ponte, professor of American literature and assistant dean of the University of Tennessee graduate school.[3]

This article may be expanded with text translated from the corresponding article in Russian. (March 2017) Click [show] for important translation instructions. Machine translation like DeepL or Google Translate is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Russian Wikipedia article at [[:ru:Катастрофа Vickers Viscount под Ньюпортом]]; see its history for attribution. You should also add the template {{Translated|ru|Катастрофа Vickers Viscount под Ньюпортом}} to the talk page. For more guidance, see Wikipedia:Translation.

United Airlines Flight 823

The aircraft involved, at Chicago O'Hare International Airport in 1963
Accident
Date	July 9, 1964 (1964-07-09)
Summary	In-flight fire for reasons unknown, loss of control
Site	Cocke County, near Parrottsville, Tennessee, United States 36°1′36.51″N 83°3′41.19″W
Aircraft
Aircraft type	Vickers Viscount 745D
Operator	United Airlines
Registration	N7405[1]
Flight origin	Philadelphia International Airport
Stopover	Washington-National Airport
Last stopover	Knoxville-McGhee Tyson Airport
Destination	Huntsville International Airport
Occupants	39
Passengers	35
Crew	4
Fatalities	39
Survivors	0

The Aircraft Accident Report published by the Civil Aeronautics Board in June 1966—almost two years after the crash—stated that "The Board is unable to identify the source of fuel, the ignition point of the fire, or the cause of the final manoeuvre."[1]^: 15 The investigation found the probable cause was "an uncontrollable in-flight fire, of undetermined origin, in the fuselage, which resulted in a loss of control of the aircraft."[1]^: 15

Approximately 33,000 lbs. of the 40,000 lb. (empty weight) airliner were recovered, with much of the missing weight attributable to cabin furnishings that were destroyed by fire. The wreckage was transported to the Naval Laboratory in Washington, D.C. where the Vickers was reconstructed by the Civil Aeronautics Board.[4]

The accident triggered an investigation of the Lockheed L-109C flight data recorder which resulted in modifications of that device and revision of the standards for all recorders. Also addressed were potential problems with the Pyrene Duo Head Model DCD-10 fire extinguisher system for the underfloor baggage and heater compartments. There was an Airworthiness Directive issued. Revisions were made to the Pilot's Manual, Viscount Maintenance and Instruction, and Accessories Manuals.[1]^{: (Attachments 1-2)}

References

External links

• United 823
• Civil Aeronautics Board Accident Report United Airlines, Inc., Vickers Viscount 745D, N7405 rosap.ntlbts.gov Investigations of Aircraft Accidents 1934-1965
• Accident description at the Aviation Safety Network
• "39 Victims Of Airplane Crash Remembered 50 Years Later" The Greeneville Sun, July 9, 2014, Archived from the original on May 26, 2021
• "Viscount c/n 103 Operational History". vickersviscount.net. Archived from the original on May 26, 2021.

Further reading

• Serling, Robert J. Loud and Clear. Garden City, New York: Doubleday & Company, Inc., 1969, pp 225–235. Library of Congress Catalog Card Number 68-22504

На других языках

---

[de] United-Air-Lines-Flug 823

Auf dem United-Air-Lines-Flug 823 (Flugnummer: UA823) verunglückte am 9. Juli 1964 eine Vickers Viscount 745D bei Parrotsville im Cocke County im Bundesstaat Tennessee, USA. Zuvor war ein Brand an Bord der Maschine ausgebrochen. Bei dem Unfall kamen alle 39 Menschen an Bord ums Leben.[1]

---

- [en] United Air Lines Flight 823

---

[it] Volo United Airlines 823

Il volo United Airlines 823 era un volo di linea della United Airlines operato il 9 luglio 1964 da un Vickers Viscount tra l'Aeroporto di Filadelfia e l'Aeroporto di Huntsville con scali intermedi a Washington e Knoxville[1]. I piloti del Vickers, ormai prossimi all'atterraggio, persero il controllo del velivolo a causa di un incendio a bordo. La causa di tale incendio non è stata identificata.

---

[ru] Катастрофа Vickers Viscount под Ньюпортом

Катастрофа Vickers Viscount под Ньюпортом — авиационная катастрофа, произошедшая вечером в четверг 9 июля 1964 года в районе Ньюпортаruen (штат Мичиган). Пассажирский самолёт Vickers 745 Viscount американской авиакомпании United Air Lines подходил к Ноксвиллу, но затем перешёл в быстрое снижение, а через несколько минут рухнул на землю. Жертвами авиакатастрофы стали 39 человек, что делает её крупнейшей в штате Теннесси.

---

---