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{{short description|1969 aviation accident}}
{{Use American English|date=July 2016}}
{{Use American English|date=July 2016}}
{{Use mdy dates|date=July 2016}}
{{Use mdy dates|date=July 2016}}
{{Infobox aircraft occurrence
{{Infobox aircraft occurrence
|name=Allegheny Airlines Flight 737
| name = Allegheny Airlines Flight 737
|image=Convair 580, Allegheny Airlines AN0746352.jpg
| image = Convair 580, Allegheny Airlines AN0746352.jpg
|caption=A [[Convair 580]] similar to the one involved
| caption = A [[Convair 580]] similar to the one involved
|Date= January 6, 1969
| Date = January 6, 1969
|Type=[[Controlled flight into terrain]]<ref name="NTSB AAR-70-10 Final Report">{{cite book |url=http://libraryonline.erau.edu/online-full-text/ntsb/aircraft-accident-reports/AAR70-10.pdf |title=Aircraft Accident Report, Allegheny Airlines, Inc., Allison Prop Jet Convair 440, N5825, near Bradford, Pennsylvania, January 6, 1969 |publisher=[[National Transportation Safety Board]] |id=NTSB-AAR-70-10 |date=May 27, 1970}}</ref>
| Type = Undetermined; presumably [[controlled flight into terrain]]<ref name="NTSB AAR-70-10 Final Report">{{cite book |url=http://libraryonline.erau.edu/online-full-text/ntsb/aircraft-accident-reports/AAR70-10.pdf |title=Aircraft Accident Report, Allegheny Airlines, Inc., Allison Prop Jet Convair 440, N5825, near Bradford, Pennsylvania, January 6, 1969 |publisher=[[National Transportation Safety Board]] |id=NTSB-AAR-70-10 |date=May 27, 1970}}</ref>
|Site=[[Lafayette Township, McKean County, Pennsylvania|Lafayette Township, McKean County]], near [[Bradford]], [[Pennsylvania]]
| Site = [[Lafayette Township, McKean County, Pennsylvania|Lafayette Township, McKean County]], near [[Bradford Regional Airport]], [[Bradford, Pennsylvania|Bradford]], [[Pennsylvania]]
|Coordinates = {{coord|41|51|36|N|78|43|43|W|type:event|display=inline,title}}
| Coordinates = (41.8631088, -78.7233006)
|Origin=[[Washington D.C.]]
| Origin = [[Washington D.C.]]
|Stopover=[[Harrisburg International Airport]]
| Stopover = [[Harrisburg International Airport]]
|Destination=[[Bradford Regional Airport]]
| Destination = [[Bradford Regional Airport]]
|Fatalities=11
| Fatalities = 11
|Aircraft Type= [[Convair CV-580]]
| aircraft_type = [[Convair CV-580]]
|Operator=[[Allegheny Airlines]]
| Operator = [[Allegheny Airlines]]
|Tail Number= N5825
| tail_number = N5825
| Occupants = 28
|Passengers=25
| Passengers = 25
|Crew=3
|Survivors = 17
| Crew = 3
| injuries = 17
| Survivors = 17
}}
}}
.
'''Allegheny Airlines Flight 737''' was a [[Convair CV-580]] (aircraft registration {{Airreg|N|5825|),}} that crashed while attempting to land at [[Bradford Regional Airport]] in [[Bradford, Pennsylvania]] on January 6, 1969. Eleven of the 28 occupants on board were killed.
'''Allegheny Airlines Flight 737''' was a [[Convair CV-580]] (aircraft registration {{Airreg|N|5825|),}} that crashed while attempting to land at [[Bradford Regional Airport]] in [[Bradford, Pennsylvania]] on January 6, 1969. Eleven of the 28 occupants on board were killed.

== Aircraft and crew ==
The flight was operated using a [[Convair CV-580]] that was originally certificated as a [[Convair CV-240 family|Convair CV-440]] on July 11, 1967, but was modified to include upgraded turbine engines and propellers and re-certificated as a CV-580. The aircraft had accumulated a total of 27,285 flight hours at the time of the accident.<ref name="NTSB AAR-70-10 Final Report" /> The flight crew consisted of Captain William I. Blanton Jr. (33), and First Officer Ronald Lesiak (31).<ref name="NTSB AAR-70-10 Final Report" />


==Flight==
==Flight==
Flight 737 took off from [[Washington D.C.]] bound for [[Detroit]], [[Michigan]] with intermediate stops in [[Harrisburg, Pennsylvania|Harrisburg]], Bradford, and [[Erie, Pennsylvania]]. The flight was uneventful until the aircraft began its approach to Bradford. Weather was overcast with one and one half miles visibility and snow showers. At ten miles from the airport, Flight 737 requested and received clearance to make its instrument approach to runway 14 instead of runway 32.<ref>[http://aviation-safety.net/database/record.php?id=19690106-0 Aircraft accident Convair CV-580 N5825 Bradford Airport, PA]</ref> The flight struck treetops just under five nautical miles from the airport before coming to rest upside down on a snow-covered golf course.<ref>{{cite news |url=https://news.google.com/newspapers?id=dSogAAAAIBAJ&sjid=qYoDAAAAIBAJ&pg=2220,5580683&dq=allegheny+airlines+bradford&hl=en |title=Probers Express Amazement Over Similarity of 2 Crashes |newspaper=[[The Free Lance–Star]] |date=January 7, 1968 |accessdate=February 4, 2020}}</ref>
Flight 737 took off from [[Washington D.C.]] bound for [[Detroit]], [[Michigan]] with intermediate stops in [[Harrisburg, Pennsylvania|Harrisburg]], Bradford, and [[Erie, Pennsylvania]]. The flight was uneventful until the aircraft began its approach to Bradford. Weather was overcast with one and one half miles visibility and snow showers. At ten miles from the airport, Flight 737 requested and received clearance to make its instrument approach to runway 14 instead of runway 32.<ref>{{Cite web |last=Ranter |first=Harro |title=ASN Aircraft accident Convair CV-580 N5825 Bradford Airport, PA (BFD) |url=https://aviation-safety.net/database/record.php?id=19690106-0 |access-date=2021-02-19 |website=Aviation Safety Network |publisher=[[Flight Safety Foundation]]}}</ref> The flight struck treetops just under five nautical miles from the airport before coming to rest upside down on a snow-covered golf course.<ref>{{cite news |url=https://news.google.com/newspapers?id=dSogAAAAIBAJ&sjid=qYoDAAAAIBAJ&pg=2220,5580683&dq=allegheny+airlines+bradford&hl=en |title=Probers Express Amazement Over Similarity of 2 Crashes |newspaper=[[The Free Lance–Star]] |date=January 7, 1968 |access-date=February 4, 2020}}</ref>

⚫
==Aftermath==
⚫
Less than two weeks before flight 737 crashed, [[Allegheny Airlines Flight 736]] also went down on approach to Bradford Airport on the same Detroit-Washington DC route via Erie, Bradford and Harrisburg. Both aircraft were approaching the same runway but in opposite directions at the time of the crashes.<ref>{{cite news |url=https://news.google.com/newspapers?id=Q24eAAAAIBAJ&sjid=l8kEAAAAIBAJ&pg=895,1744100&dq=allegheny+airlines+bradford&hl=en |title=Common Factor In Crashes Sought |newspaper=[[The Daytona Beach News-Journal|Daytona Beach Morning Journal]] |date=January 8, 1969 |accessdate=February 4, 2020}}</ref> Shortly after Flight 737's crash, Allegheny Airlines self-imposed new rules for landings at airports. The rules required visibility of 1,000 feet up and three miles out for any airport without instrument landing systems. Allegheny cancelled 124 out of 1,409 scheduled flight segments in the first week after the new visibility rules were adopted.<ref>{{cite news |url=https://news.google.com/newspapers?id=iackAAAAIBAJ&sjid=3GwDAAAAIBAJ&pg=7235,2383458&dq=allegheny+airlines+bradford&hl=en |title=Allegheny's Restrictions Cut Landings; Self-Imposed Visibility Rules Canceling Stops |newspaper=[[Pittsburgh Post-Gazette]] |date=January 15, 1969 |accessdate=February 4, 2020}}</ref>


==Cause==
==Cause==
The [[NTSB]] was unable to determine the probable cause of the crash. "Of some 13 potential causes examined by the Board, three remain after final analysis. They are: 1) misreading of the altimeter by the captain, 2) a malfunction of the captain's altimeter after completion of the instrument approach procedure turn, and 3) a misreading of the instrument approach chart. Of these three, no single one can be accepted or rejected to the exclusion of another based on the available evidence."<ref name="NTSB AAR-70-10 Final Report"/>
The [[National Transportation Safety Board]] (NTSB) was unable to determine the probable cause of the crash. "Of some 13 potential causes examined by the Board, three remain after final analysis. They are: 1) misreading of the altimeter by the captain, 2) a malfunction of the captain's altimeter after completion of the instrument approach procedure turn, and 3) a misreading of the instrument approach chart. Of these three, no single one can be accepted or rejected to the exclusion of another based on the available evidence."<ref name="NTSB AAR-70-10 Final Report"/>


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==Aftermath==
⚫
{{Portal|United States|Aviation}}
⚫
Less than two weeks before flight 737 crashed, [[Allegheny Airlines Flight 736]] also went down on approach to Bradford Airport on the same Detroit-Washington DC route via Erie, Bradford and Harrisburg. Both aircraft were approaching the same runway at Bradford, but in opposite directions at the time of the crashes.<ref>{{cite news |url=https://news.google.com/newspapers?id=Q24eAAAAIBAJ&sjid=l8kEAAAAIBAJ&pg=895,1744100&dq=allegheny+airlines+bradford&hl=en |title=Common Factor In Crashes Sought |newspaper=[[The Daytona Beach News-Journal|Daytona Beach Morning Journal]] |date=January 8, 1969 |access-date=February 4, 2020}}</ref> Shortly after Flight 737's crash, Allegheny Airlines self-imposed new rules for landings at airports. The rules required visibility of 1,000 feet up and three miles out for any airport without instrument landing systems. Allegheny cancelled 124 out of 1,409 scheduled flight segments in the first week after the new visibility rules were adopted.<ref>{{cite news |url=https://news.google.com/newspapers?id=iackAAAAIBAJ&sjid=3GwDAAAAIBAJ&pg=7235,2383458&dq=allegheny+airlines+bradford&hl=en |title=Allegheny's Restrictions Cut Landings; Self-Imposed Visibility Rules Canceling Stops |newspaper=[[Pittsburgh Post-Gazette]] |date=January 15, 1969 |access-date=February 4, 2020}}</ref>

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{{Portal|United States|Aviation|Pennsylvania
}}


==References==
==References==
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==External links==
==External links==
*[http://www.airdisaster.com/cgi-bin/view_details.cgi?date=01061969&reg=N5825&airline=Allegheny+Airlines Allegheny Airlines Flight 737 at Airdisaster.com]
*{{usurped|1=[https://web.archive.org/web/20070915194209/http://www.airdisaster.com/cgi-bin/view_details.cgi?date=01061969&reg=N5825&airline=Allegheny+Airlines Allegheny Airlines Flight 737 at Airdisaster.com]}} ({{usurped|1=[https://archive.today/20121208170728/http://www.airdisaster.com/cgi-bin/view_details.cgi?date=01061969&reg=N5825&airline=Allegheny+Airlines Archive]}})


{{Aviation accidents and incidents in 1969}}
{{Aviation accidents and incidents in 1969}}
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{{Aviation accidents and incidents in the United States in the 1960s}}

{{DEFAULTSORT:Allegheny Airlines Flight 737}}
{{DEFAULTSORT:Allegheny Airlines Flight 737}}
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[[Category:Aviation accidents and incidents in 1969]]
[[Category:Accidents and incidents involving the Convair CV-240 family]]
[[Category:Accidents and incidents involving the Convair CV-240 family]]
[[Category:Airliner accidents and incidents in Pennsylvania]]
[[Category:Airliner accidents and incidents in Pennsylvania]]
[[Category:Airliner accidents and incidents with an unknown cause]]
[[Category:Airliner accidents and incidents involving controlled flight into terrain]]
[[Category:Airliner accidents and incidents involving controlled flight into terrain]]
[[Category:Allegheny Airlines accidents and incidents]]
[[Category:Allegheny Airlines accidents and incidents]]
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[[Category:Aviation accidents and incidents in the United States in 1969]]
[[Category:Aviation accidents and incidents in the United States in 1969]]
[[Category:1969 in Pennsylvania]]
[[Category:1969 in Pennsylvania]]
[[Category:January 1969 events]]
[[Category:January 1969 events in the United States]]

Latest revision as of 00:25, 11 September 2024

Allegheny Airlines Flight 737
A Convair 580 similar to the one involved
Occurrence
DateJanuary 6, 1969
SummaryUndetermined; presumably controlled flight into terrain[1]
SiteLafayette Township, McKean County, near Bradford Regional Airport, Bradford, Pennsylvania
(41.8631088, -78.7233006)
Aircraft
Aircraft typeConvair CV-580
OperatorAllegheny Airlines
RegistrationN5825
Flight originWashington D.C.
StopoverHarrisburg International Airport
DestinationBradford Regional Airport
Occupants28
Passengers25
Crew3
Fatalities11
Injuries17
Survivors17

Allegheny Airlines Flight 737 was a Convair CV-580 (aircraft registration N5825),[2] that crashed while attempting to land at Bradford Regional Airport in Bradford, Pennsylvania on January 6, 1969. Eleven of the 28 occupants on board were killed.

Aircraft and crew

[edit]

The flight was operated using a Convair CV-580 that was originally certificated as a Convair CV-440 on July 11, 1967, but was modified to include upgraded turbine engines and propellers and re-certificated as a CV-580. The aircraft had accumulated a total of 27,285 flight hours at the time of the accident.[1] The flight crew consisted of Captain William I. Blanton Jr. (33), and First Officer Ronald Lesiak (31).[1]

Flight

[edit]

Flight 737 took off from Washington D.C. bound for Detroit, Michigan with intermediate stops in Harrisburg, Bradford, and Erie, Pennsylvania. The flight was uneventful until the aircraft began its approach to Bradford. Weather was overcast with one and one half miles visibility and snow showers. At ten miles from the airport, Flight 737 requested and received clearance to make its instrument approach to runway 14 instead of runway 32.[3] The flight struck treetops just under five nautical miles from the airport before coming to rest upside down on a snow-covered golf course.[4]

Cause

[edit]

The National Transportation Safety Board (NTSB) was unable to determine the probable cause of the crash. "Of some 13 potential causes examined by the Board, three remain after final analysis. They are: 1) misreading of the altimeter by the captain, 2) a malfunction of the captain's altimeter after completion of the instrument approach procedure turn, and 3) a misreading of the instrument approach chart. Of these three, no single one can be accepted or rejected to the exclusion of another based on the available evidence."[1]

Aftermath

[edit]

Less than two weeks before flight 737 crashed, Allegheny Airlines Flight 736 also went down on approach to Bradford Airport on the same Detroit-Washington DC route via Erie, Bradford and Harrisburg. Both aircraft were approaching the same runway at Bradford, but in opposite directions at the time of the crashes.[5] Shortly after Flight 737's crash, Allegheny Airlines self-imposed new rules for landings at airports. The rules required visibility of 1,000 feet up and three miles out for any airport without instrument landing systems. Allegheny cancelled 124 out of 1,409 scheduled flight segments in the first week after the new visibility rules were adopted.[6]

References

[edit]
  1. ^ a b c d Aircraft Accident Report, Allegheny Airlines, Inc., Allison Prop Jet Convair 440, N5825, near Bradford, Pennsylvania, January 6, 1969 (PDF). National Transportation Safety Board. May 27, 1970. NTSB-AAR-70-10.
  2. ^ "FAA Registry (N5825)". Federal Aviation Administration.
  3. ^ Ranter, Harro. "ASN Aircraft accident Convair CV-580 N5825 Bradford Airport, PA (BFD)". Aviation Safety Network. Flight Safety Foundation. Retrieved February 19, 2021.
  4. ^ "Probers Express Amazement Over Similarity of 2 Crashes". The Free Lance–Star. January 7, 1968. Retrieved February 4, 2020.
  5. ^ "Common Factor In Crashes Sought". Daytona Beach Morning Journal. January 8, 1969. Retrieved February 4, 2020.
  6. ^ "Allegheny's Restrictions Cut Landings; Self-Imposed Visibility Rules Canceling Stops". Pittsburgh Post-Gazette. January 15, 1969. Retrieved February 4, 2020.
[edit]
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