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2019 Alaska mid-air collision

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645:, and photos taken by passengers in the accident aircraft. The NTSB found that the DHC-2 had been gradually climbing and had leveled off at an altitude of 3,350 ft (1,020 m) and a heading of about 255°, while the DHC-3 was descending from 4,000 ft (1,200 m) at a track ranging from 224° and 237°. The agency determined that the DHC-2 pilot would have been unable to see the DHC-3 approaching from his right due to the DHC-2 cockpit structure, the right-hand wing, and the passenger sitting in the right-hand front seat, while the left front window post in the DHC-3 obscured the DHC-2 from the pilot's view for 11 seconds leading up to the collision. 524: 29: 147: 547:(ADS-B) collision warning system, but the pilot did not perceive any ADS-B collision warnings before he saw a "flash" to his left, and the two aircraft collided at 12:21 PM local time at an altitude of about 3,350 feet (1,020 m) MSL. One of the passengers in the DHC-3 reportedly saw the other aircraft before the collision and yelled "Pull up! Pull up!" before impact. The collision broke the windshield and separated the left rear door from the DHC-3. 251: 406:'the inherent limitations of the see-and-avoid concept, along with the absence of alerts from both airplanes' traffic display systems." Due to the angle of approach, the DHC-2 pilot's view was obscured by the aircraft structure and the passenger sitting in the right-hand seat, while the DHC-2 was blocked from the DHC-3 pilot's view by the left front window post. Both aircraft were equipped with 1632: 673:, which could have mitigated the lack of alerting capability of the CDTI in the Taquan DHC-3, and prompted the airline to update its preflight checklist to include appropriate CDTI settings. Additionally, the NTSB recommended that ForeFlight upgrade their software such that automatic alerts are provided by default when the target aircraft is not broadcasting pressure altitude. 1620: 510:
The DHC-3 pilot was 60 years old identified as Lou Beck. He held an airline transport pilot certificate and a flight instructor certificate, a rating for single-engine seaplanes, and a valid first-class medical certificate with a limitation requiring corrective lenses. He had been hired by Taquan Air
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broadcasting feature of the GSL 71 was disabled because the control knob was set to the OFF position, and the Taquan Air preflight checklist (which listed the name of a different operator) did not require the pilot to set the knob to the appropriate position to broadcast pressure altitude. According
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The bodies of three occupants of the DHC-2 were recovered from the water soon after the accident and the other two bodies were found in a wooded area near the shoreline the following day. The medical examiner determined the cause of death of all five DHC-2 occupants to have been blunt force trauma.
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Nine passengers in the DHC-3 sustained serious injuries and one passenger died on the scene, while the pilot of the DHC-3 sustained suffered head trauma during the accident; all four passengers and the pilot in the DHC-2 died on impact. Six injured victims were admitted to a local hospital and four
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The DHC-3 came to rest under about 80 feet (24 m) of water. The fuselage forward of the bulkhead separating the passenger cabin from the cockpit was found mostly broken away from the rear fuselage, and the left side of the forward fuselage was more heavily damaged than the right side. Two
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separated from the aircraft, and the cabin immediately flooded through the left rear door opening and broken windshield and began to sink. The pilot suffered head injuries in the collision and landing but was able to open the right rear door and help passengers exit. The pilot and surviving
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mobile app CDTI used by the DHC-2 pilot, which was not designed to provide alerts when the target aircraft is not broadcasting pressure altitude. The lack of dedicated auditory or visual warnings left both pilots dependent on visually checking their CDTI display screens periodically.
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and ferried the survivors to shore before a Coast Guard boat and helicopter arrived. The female passenger in the right front seat was severely injured and was seen motionless and slumped over in her seat as the aircraft sank. She was the only fatality on DHC-3.
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crashed one week later on 20 May and the airline suspended all flights the following day. Amid increased oversight by the FAA, Taquan resumed limited cargo service on 23 May, scheduled passenger flights on 31 May, and on-demand sightseeing tours on June 3.
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The body of the fatal front-seat passenger in the DHC-3 was found underwater, still strapped into her seat in the aircraft wreckage; her primary cause of death was determined to have been blunt force trauma with drowning being a contributing factor.
461:, manufactured in 1956, owned by Pantechnicon Aviation Ltd. since 2012, and operated by Taquan Air since 2016. It was also equipped with Edo floats, and had logged 30,297 hours of operation at its last annual inspection on April 30, 2019. 1662: 1657: 387:, United States. The DHC-2 broke up in mid-air with the loss of all four passengers and the pilot. The DHC-3 pilot was able to maintain partial control, but the aircraft sustained substantial damage in the collision and the subsequent 1652: 1257: 661:
to data records examined by the NTSB, the DHC-3 had not broadcast pressure altitude since April 29, 2019. The absence of pressure altitude broadcasts effectively disabled the automatic alert features in the
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with no limitations. His personal flight records could not be located but he had reported around 11,000 flight hours during his last medical exam. He was the owner and sole pilot for Mountain Air Service.
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Since the deceased DHC-2 pilot was the owner and sole pilot for Mountain Air Service, and the DHC-2 involved was the only aircraft owned by the airline, the company ceased all operations after the crash.
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propeller blades were partially broken off, while all three were bent and gouged in a manner consistent with heavy rotational contact with a solid object, and were smeared with white paint.
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The DHC-2 broke up in mid-air, creating an approximately 2,000-by-1,000-foot (610 by 300 m) debris field about 1.75 miles (2.82 km) southwest of the DHC-3 crash site. The DHC-2
1250: 957: 410:(ADS-B) traffic alert systems, but the DHC-3 automatic alert feature had been disabled by an equipment change, while the alert features of the DHC-2 system did not trigger because 1069: 1682: 1599: 1593: 1243: 544: 391:; the pilot suffered minor injuries, nine passengers suffered serious injuries, and one passenger was killed. Both aircraft were conducting sightseeing flights under 638: 407: 395:, which state that the pilot of each aircraft is responsible for visually ensuring adequate separation from other air traffic, commonly known as "see and avoid". 985: 535:
approximately 7 miles (11 km) southwest. The DHC-2 was flying at 107 knots (123 mph; 198 km/h) at an altitude of about 3,350 feet (1,020 m)
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in 2018 and flew for the airline primarily during the summer months. According to Taquan records, he had about 25,000 flight hours, with about 15,000 hours as
1511: 897: 867: 637:'the inherent limitations of the see-and-avoid concept along with the absence of alerts from both airplanes' traffic display systems." The NTSB examined 1471: 499: 1481: 1521: 1361: 1301: 648:
Both aircraft were equipped with ADS-B based Cockpit Display of Traffic Information (CDTI). However, an FAA-provided equipment upgrade to the
1551: 539:(MSL) while the DHC-3 was gradually descending at 126 knots (145 mph; 233 km/h) from an altitude of 3,700 feet (1,100 m) MSL. 1411: 1331: 627: 399: 1451: 1291: 696: 1041: 1571: 1391: 1311: 523: 28: 414:
in the DHC-3 were not broadcasting the aircraft's altitude. The NTSB also identified Taquan's inadequate preflight checklist and the
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N959PA taken by a passenger on N952DB just before the collision; the red oval illustrates the window post blocking the pilot's view
1124:"NTSB Publishes Preliminary Report for Investigation of Mid-Air Collision, Calls for Greater Safety Measures for For-Hire Flights" 1561: 1531: 1267: 540: 362: 159: 893: 863: 431: 415: 376: 263: 146: 630:(NTSB) immediately began an investigation of the accident. A preliminary NTSB accident report was published on May 22, 2019. 532: 465: 197: 746: 1371: 707: 702: 1610: 480: 683: 502:
and a flight instructor certificate, ratings for seaplanes with single or multiple engines, and a valid second-class
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floats, and had 16,452 total flight hours at the time of its most recent annual inspection in on April 16, 2019.
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The DHC-3 pitched about 27 degrees nose down, but the pilot was able to maintain partial control and perform a
447: 419: 901: 871: 1672: 446:, owned and operated by Mountain Air Service LLC since 2012. It was manufactured in 1951, was equipped with 1097: 527:
NTSB illustration of the flight paths of N952DB (orange line) and N959PA (pink line) prior to the collision
1013: 929: 811: 488: 1151:"NATIONAL TRANSPORTATION SAFETY BOARD Virtual Meeting of April 20, 2021 (Information subject to editing)" 1351: 1321: 558:, and cabin structure were separated from one another, and the right wing showed damage consistent with 435: 174: 1431: 1401: 1074: 990: 962: 614: 492: 1208: 1150: 1581: 484: 392: 1235: 1123: 453:
The second accident aircraft was a de Havilland Canada DHC-3 Turbine Otter floatplane, FAA number
1541: 1018: 934: 841: 187: 657: 476: 369: 62: 1070:"After 2 recent fatal crashes, Taquan Air is expected to resume passenger service Wednesday" 653: 570: 512: 469: 1624: 569:
before touching down in George Inlet. On landing, the aircraft shuddered violently, the
958:"NTSB: Pilot saw 'flash from left' before midair collision near Ketchikan that killed 6" 574:
passengers were rescued by a nearby boater in a small skiff, who immediately called the
250: 536: 388: 842:"Limitations of See-and-Avoid, Lack of Warning Alerts, Led to Alaska Midair Collision" 1646: 1636: 1046: 566: 1180: 986:"Company involved in midair collision near Ketchikan suspends cruise-line air tours" 380: 73: 1014:"Airline Involved in 2 Deadly Alaska Crashes Suspends Operations, Officials Say" 472: 430:
The first accident aircraft was a de Havilland Canada DHC-2 Beaver floatplane,
1224: 1213: 662: 373: 365: 273: 99: 86: 930:"2 More Bodies Found After Alaska Plane Collision, Bringing Death Toll to 6" 559: 555: 669:
The NTSB recommended that the FAA require Part 135 operators to implement
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The incident is featured in season 24 of the Canadian documentary series
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In a meeting held on April 20, 2021, the NTSB attributed the accident to
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The DHC-2 pilot was 46 years old identified as Randy Sullivan. He held a
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GSL 71 system in the DHC-3, implemented due to the phaseout of the FAA
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Accidents and incidents involving the de Havilland Canada DHC-2 Beaver
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Accidents and incidents involving the de Havilland Canada DHC-3 Otter
844:(Press release). National Transportation Safety Board. April 20, 2021 649: 384: 77: 656:, had disabled the auditory traffic alert feature. Furthermore, the 1126:(Press release). National Transportation Safety Board. May 22, 2019 1042:"UPDATE: Passenger, pilot in fatal crash near Metlakatla are ID'd" 522: 1239: 464:
Both aircraft were conducting local sightseeing flights of the
817:(Report). National Transportation Safety Board. April 20, 2021 487:(VFR). Neither aircraft carried, nor was required to carry, a 16:
Collision of two sightseeing flights over George Inlet, Alaska
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Aviation accidents and incidents in the United States in 2019
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Stack, Liam; Zaveri, Mihir; Victor, Daniel (May 14, 2019).
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Aviation Accident Report NTSB/AAR-21/04 PB2021-100915
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impacts. The pilot and all 4 passengers were killed.
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Airliner accidents and incidents involving ditching
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The DHC-3 was equipped with an 408:Automatic Dependent Surveillance–Broadcast 249: 145: 27: 20: 468:area for the benefit of passengers of a 1615: 1472:Skydive UmeĂĄ Gippsland GA8 Airvan crash 719: 483:as on-demand sightseeing flights under 377:de Havilland Canada DHC-3 Turbine Otter 264:de Havilland Canada DHC-3 Turbine Otter 1512:Philippines Beechcraft King Air crash 1204:National Transportation Safety Board 7: 1678:May 2019 events in the United States 1412:Biman Bangladesh Airlines Flight 060 1332:Biman Bangladesh Airlines Flight 147 628:National Transportation Safety Board 400:National Transportation Safety Board 697:2009 Hudson River mid-air collision 1482:Pakistan Army military plane crash 1392:Miami Air International Flight 293 402:(NTSB) attributed the accident to 14: 1522:Boeing B-17 Flying Fortress crash 1302:English Channel Piper PA-46 crash 898:"N-Number Inquiry Results N959PA" 868:"N-Number Inquiry Results N952DB" 368:operated by Mountain Air Service 151:N952DB, the DHC-2 Beaver involved 1630: 1618: 1552:Busy Bee Congo Dornier 228 crash 1532:Ukraine Air Alliance Flight 4050 1268:Aviation accidents and incidents 1040:Hohenstatt, Ben (May 21, 2019). 541:Visual meteorological conditions 531:Both aircraft were returning to 363:de Havilland Canada DHC-2 Beaver 255:N959PA, the DHC-3 Otter involved 160:de Havilland Canada DHC-2 Beaver 1098:"Taquan Air resumes operations" 1096:Tobin, Rebecca (June 7, 2019). 1068:DeMarban, Alex (May 29, 2019). 956:Hollander, Zaz (May 22, 2019). 894:Federal Aviation Administration 864:Federal Aviation Administration 432:Federal Aviation Administration 416:Federal Aviation Administration 1452:New York City helicopter crash 1292:Saha Airlines Boeing 707 crash 1215:NTSB Board Meeting on accident 533:Ketchikan Harbor Seaplane Base 466:Misty Fjords National Monument 307:Ketchikan Harbor Seaplane Base 299:Ketchikan Harbor Seaplane Base 198:Ketchikan Harbor Seaplane Base 1: 1572:Chilean Air Force C-130 crash 1372:Ethiopian Airlines Flight 302 708:2023 Alaska mid-air collision 703:2020 Alaska mid-air collision 22:2019 Alaska mid-air collision 1442:Indian Air Force An-32 crash 1342:Air Dynasty helicopter crash 1012:Stack, Liam (May 21, 2019). 687:, titled "Without Warning". 500:commercial pilot certificate 1699: 1462:Angara Airlines Flight 200 1312:SĂŁo Paulo helicopter crash 1209:NTSB board meeting summary 1591: 1283: 671:safety management systems 592:others were evacuated to 576:United States Coast Guard 422:as contributing factors. 248: 144: 26: 1562:MĂ©naka mid-air collision 1492:Ural Airlines Flight 178 1422:Alaska mid-air collision 420:safety management system 1226:NTSB accident animation 1182:William Bramble - NTSB 528: 489:cockpit voice recorder 100:55.42556°N 131.50500°W 47:May 13, 2019 1502:Alta helicopter crash 1352:CommutAir Flight 4933 1322:Atlas Air Flight 3591 904:on September 13, 2020 874:on September 13, 2020 526: 436:aircraft registration 1432:Taquan Air Flight 20 1402:Aeroflot Flight 1492 1075:Anchorage Daily News 991:Anchorage Daily News 963:Anchorage Daily News 615:Taquan Air Flight 20 493:flight data recorder 169:Mountain Air Service 105:55.42556; -131.50500 1600:►   2020 1594:2018   ◄ 1582:Bek Air Flight 2100 1382:Northrop N-9M crash 1362:Colombia DC-3 crash 504:medical certificate 485:visual flight rules 398:In April 2021, the 393:visual flight rules 361:On May 13, 2019, a 96: /  23: 1597:    1542:PenAir Flight 3296 1019:The New York Times 935:The New York Times 677:In popular culture 529: 1606: 1605: 1102:travelweekly.com/ 658:pressure altitude 477:Ketchikan, Alaska 426:Aircraft and crew 359: 358: 63:Mid-air collision 1690: 1635: 1634: 1633: 1623: 1622: 1621: 1614: 1598: 1278: 1277: 1275: 1260: 1253: 1246: 1237: 1227: 1216: 1193: 1192: 1191: 1189: 1179:William (n.d.), 1176: 1170: 1169: 1167: 1165: 1155: 1147: 1136: 1135: 1133: 1131: 1120: 1114: 1113: 1111: 1109: 1093: 1087: 1086: 1084: 1082: 1065: 1059: 1058: 1056: 1054: 1037: 1031: 1030: 1028: 1026: 1009: 1003: 1002: 1000: 998: 981: 975: 974: 972: 970: 953: 947: 946: 944: 942: 925: 914: 913: 911: 909: 900:. Archived from 896:(May 22, 2019). 890: 884: 883: 881: 879: 870:. 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Index


Mid-air collision
George Inlet
Alaska
55°25′32″N 131°30′18″W / 55.42556°N 131.50500°W / 55.42556; -131.50500

de Havilland Canada DHC-2 Beaver
Registration
Rudyerd Bay
Ketchikan Harbor Seaplane Base

de Havilland Canada DHC-3 Turbine Otter
Taquan Air
de Havilland Canada DHC-2 Beaver
floatplane
collided
Taquan Air
de Havilland Canada DHC-3 Turbine Otter
George Inlet
Alaska
forced landing
visual flight rules
National Transportation Safety Board
Automatic Dependent Surveillance–Broadcast
avionics
Federal Aviation Administration
safety management system
Federal Aviation Administration
aircraft registration
Edo

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