# NTSB MIA00FA102: McDonnell Douglas HU-600N, N611BC, Miami, FL, March 3, 2000 - Type: NTSB accident investigation - Classification: Accident · Fatal · Field investigation · Final report - Date: March 3, 2000, 15:29 local (20:29 UTC) - Place: Miami, FL - Coordinates: 25.659696, -80.359237 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=25.6597&lon=-80.3592&mi=10 - Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping) - Highest injury: Fatal - Injuries: 2 fatal - Status: Completed, report March 2, 2001 - Report: Approved by Office Director - NTSB case key (mKey): 48709 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA00FA102 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/48709/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=48709 - Page: https://openairdocs.org/ntsb/MIA00FA102 ## Probable cause The pilot's ostentatious display and in-flight decision to perform an abrupt low altitude pitch up maneuver (aerobatic flight). This resulted in the main rotor blades colliding with and separating the tail boom assembly while maneuvering, and the helicopters subsequent in-flight collision with terrain. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Abrupt maneuver, maneuvering - in-flight planning/decision - improper, pilot in command (cause) - ostentatious display, pilot in command (contributing factor) - low altitude flight/maneuver - performed, pilot in command - Airframe/component/system failure/malfunction, maneuvering - misc rotorcraft,main rotor/tail boom contact - misc rotorcraft,tail boom - separation - In flight collision with terrain/water, descent - uncontrolled ## Analysis The Sky 6 pilot was returning to Tamiami Airport, Miami, Florida, when he overheard a friend departing the airport. They established radio contact on the air-to-air frequency, and the sky 6 pilot decided to join his friend on the outbound leg. He made a 180 degree turn, and joined up on the right side of his friends helicopter. They talked for a short time and the Sky 6 pilot departed. His friend stated, Sky 6 started a descent estimated at about 15 degree nose-down attitude. His passenger stated Sky 6 descent was about a 45 degree nose down attitude. The friend and the passenger stated the nose of Sky 6 pitched up 70 degrees or past the 90 degree point. The helicopter yawed to the left, held there, appeared to slide backwards, the nose pitched down, the tail boom assembly separated, and the helicopter collided with terrain. Another news helicopter pilot, who knew the Sky 6 pilot, stated he overheard Sky 6 talking with another pilot on the air-to-air frequency. Based on there conversation he assumed they knew each other. At about 1530, he and a flight controller heard Sky 6 state, 'watch this.' There was no other communication between Sky 6 and the other pilot. Witnesses on the ground stated they observed both helicopters in straight and level flight. The accident helicopter nose was observed to pitch down and then pitched up to a near vertical nose-up attitude. The helicopter yawed to the left, slid backwards, the nose pitched down, and the tail boom separated. The helicopter started rotating to the right until it disappeared from view. Other news helicopter pilots stated the Sky 6 pilot would arrive at a news scene and stop the helicopter by conducting a cyclic climb maneuver and then bring the helicopter to a hover. A friend of the Sky 6 pilot stated he had a conversation with the pilot during the first part of February 2000. The pilot described a maneuver that he had been performing in the helicopter. He would make a high speed pass down a runway followed by a steep pull-up. At the top of the pull-up he would reverse the heading by 180 degrees, and then recover from the ensuing dive similar to a hammerhead turn in a fixed wing aircraft. Examination of the airframe, flight controls, engine assembly and accessories revealed no evidence of a precrash mechanical failure or malfunction. Examination of the tail boom assembly revealed four main rotor blade strikes in addition to the fracture that resulted in the separation of the tail boom. ## Factual narrative HISTORY OF FLIGHT On March 3, 2000, at about 1529 eastern standard time, a McDonnell Douglas HU-600N, N611BC, registered to General Electric Capital Corporation, operated by WTVJ NBC 6, as a 14 CFR Part 91 photography flight, crashed in a residential area while maneuvering in the vicinity of Miami, Florida. Visual meteorological conditions prevailed and no flight plan was filed. The helicopter was destroyed by a post crash fire. The airline transport pilot and news photographer were fatally injured. The flight originated from Kendall-Tamiami Executive Airport (TMB), Miami, Florida, about 26 minutes before the accident. Friends of the pilot who were flying in another helicopter (N97UP) stated N611BC (Sky 6) was inbound to TMB when they talked to him on an air to air frequency. They got a visual location on each other and N611BC made a 180-degree turn, passed below them, and then joined up on their right side with about 300 yards separation in straight and level flight. They talked for a while and then Sky 6 departed. The pilot of N97UP observed Sky 6 initiate a descent which he estimated to be about a 15-degree nose-down attitude. His passenger estimated the descent at about a 45-degree nose-down attitude. The pilot observed the nose pull up to about a 30-degree nose-up attitude, and then pitched up about 70-degrees. The passenger stated the nose pulled up to an attitude past the 90-degree point. The helicopter yawed to the left, held there and appeared to be sliding backwards. The nose started to pitch down and the tail boom assembly separated. The helicopter descended and collided with the terrain. Witnesses on the ground who observed the accident stated they observed both helicopters in straight and level flight. The accident helicopter nose pitched down and then pitched up to an almost vertical nose-up attitude. The helicopter yawed to the left, started to descend backwards, the nose pitched down and the tail boom separated. The helicopter started rotating to the right until it disappeared from their view. Black smoke was then observed coming from the ground up. A helicopter pilot for channel 10 television was dispatched to cover the same bus/train accident as Sky 6. He contacted Miami tower to get authorization to enter into class "B" airspace and was informed that Sky 6 was over the scene. He attempted to locate Sky 6 visually but was unable to do so. He asked his cameraman to see if he could locate him with his equipment which was successful. He then informed Miami tower that he had Sky 6 in sight. He continued to monitor the Miami tower frequency and the VHF radio air-to-air frequency (123.025.) He subsequently heard Sky 6 inform Miami tower that he was clear of the area. A short time later he heard the Sky 6 pilot talking on the air-to-air frequency with another pilot. Based on their conversation he figured that they knew each other. He overheard the pilot of Sky 6 tell the other pilot to keep flying east bound. At about 1530, he heard the pilot of Sky 6 state, "watch this." There were no other communications heard between Sky 6 and the other pilot. The Sky 10 pilot stated he completed his mission over the bus/train accident and informed Miami tower that he was returning to TMB. He turned towards TMB and observed smoke. He thought it was a brush fire, and then he noticed that it was black smoke, and knew it had to be a house or vehicle fire of some sort. He headed towards the smoke. Upon arrival his cameraman informed him that it was a helicopter. He contacted the flight coordinator on frequency 123.025, and asked him to check on the status of their aircraft. The coordinator asked him what he thought had happened. He asked the coordinator if he had heard anything, and the coordinator replied, "watch this." A friend of the deceased Sky 6 pilot stated that he had a conversation with the pilot during the first part of February 2000. The pilot described a maneuver that he had been performing in the Sky 6 Notar helicopter. The maneuver entailed a high speed pass down a runway followed by a steep pull-up. At the top of the pull-up, the Sky 6 pilot informed him that he would reverse the heading by 180-degrees, and then recover from the ensuing dive similar to a hammerhead turn in a fixed wing aircraft. He also stated that the control forces during the recovery from the maneuver were extremely high. Two helicopter pilot's for different local area television stations stated the deceased pilot would normally arrive on a news scene and would stop the Sky 6 helicopter by conducting a cyclic climb maneuver. He would pitch the nose of the helicopter up to about a 45 degree angle or a near vertical nose-up attitude, and then bring the helicopter to a hover. He would normally be lower than the other helicopters on scene and would conduct high speed sideward flight. When he would depart a news site, he would make a very nose low departure, and when he departed TMB he would fly down the taxiway between 30 to 40 feet and he would make a cyclic climb departure. Cameramen from channel 6 and the employer of the deceased pilot did not substantiate all of the statements made by the 2 helicopter pilots from the other television stations. One cameramen stated 2 days before the accident he was standing in the main editing area at the TV station when the deceased photographer stated he would be flying with the deceased pilot on Friday March 3, 2000. The photographer stated he was concerned about flying with the deceased pilot because he was an aggressive pilot. He informed them that when they left TMB with the helicopter parked on a dolly that the pilot would initiate a steep high bank turn right after takeoff. He stated he did not mind the pilot doing it a couple of times, but after 7 or 8 times it became annoying. He also stated he discussed his displeasure of the maneuver with the pilot because he did not feel there was any need to be performing that type of maneuver. An attorney who was receiving turbine instruction at TMB on the day of the accident stated he was walking out to the helicopter when he met his instructor pilot returning from a flight with another student. As they approached the helicopter the other pilot stated, "There he is in another one of those 60 degree banks!" The attorney stated, "I looked where he was looking (toward the NE of where we were walking) and saw Sky 6 on a heading of about 180 at an altitude of about 200 feet, again over the center of TMB. Just as Keith had said, Sky 6 was in a bank of at least 60 degrees. I could see the entire rotor head and most of the rotor disk. The bank was so steep that the disk was almost a perfect circle, and Sky 6 was dropping-losing altitude at a high rate of speed. It soon disappeared from view, blocked from our sight by buildings. My initial reaction was that it was too low to recover from such a high rate of descent and must have crashed. When there was no crash or explosion, however, I said something like "He is really hot dogging it!" My thought at the time was that the pilot must have a death wish, or he was perhaps demonstrating the capabilities of the aircraft to someone. However it struck me that 200 feet above the center of TMB was not a good place to demonstrate such a dangerous maneuver and wondered what the pilot was doing. At this point Jim said that he had seen Sky 6 earlier in the day performing some various maneuvers and that Sky 6, when he was standing near the FKC helicopters, passed very fast and very low over his head. He said something about "getting a haircut." I asked if Paul Barth was flying it and he said no, it was Ruben (something-the name did not stick in my mind). At that time or later he said that Ruben "was just back from Oregon" and was working for Paul Barth again.... After we returned from the Jet Ranger flight Todd and Jim and I were sitting in Jim's FKC office chatting when the phone rang with a call from one of Jim's friends w ## Aircraft - Registration: [N611BC](https://openairdocs.org/deregistered/N611BC-2001-09-05), registration cancelled 2001-09-05, S/N RN008 (OpenAirDocs) - Reported make and model: McDonnell Douglas HU-600N - Registry model: [Mcdonnell Douglas Helicopter 600N](https://openairdocs.org/model/mcdonnell-douglas-helicopter-600n) (registry code 3027377) (OpenAirDocs) - Category: Helicopter - Serial number: RN008 - Airframe hours: 964 - Engines: Allison 250-C47M 600 horsepower turbo shaft - Damage: Destroyed - Fire: On-Ground - Flight: Part 91 - Operator: Wtvj Nbc 6 - Registered owner: General Electric Capital Corp - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, February 2, 2000, 44 hours before - Departed: TMB ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 42; airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane, helicopter; medical: class 1, valid medical--no waivers/lim.; seat: left; toxicology performed; flight hours: 6,506 total, 526 in this make and model, 5,900 as pilot in command, 90 in the last 90 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 290° at 6 knots - Visibility: 10 statute miles - Lowest ceiling: 3,500 ft broken - Temperature: 84 °F, dew point 43 °F - Altimeter: 29.00 inHg - Observed at: TMB, 4 nm away ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 20000303012769A](https://openairdocs.org/incident/20000303012769A), Mar 3, 2000: Doug 600N, Miami, FL, No damage, 2 fatal. (-23)No narrative ## Docket (40 files) The files NTSB released with the investigation on May 25, 2000, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=48709. 29.6 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 502 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40445635&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF - Witness Statements (item 2, .PDF, 774 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40445636&FileExtension=.PDF&FileName=Witness%20Statements-Redacted.PDF - Statements (item 3, .PDF, 881 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40445637&FileExtension=.PDF&FileName=Statements-Redacted.PDF - Supplement A (item 4, .PDF, 278 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124149&FileExtension=.PDF&FileName=Supplement%20A-Master.PDF - Supplement B (item 5, .PDF, 490 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124150&FileExtension=.PDF&FileName=Supplement%20B-Master.PDF - Supplement N (item 6, .PDF, 210 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124151&FileExtension=.PDF&FileName=Supplement%20N-Master.PDF - Supplement S (item 7, .PDF, 67 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124152&FileExtension=.PDF&FileName=Supplement%20S-Master.PDF - Transcript of Radio Communications (item 8, .PDF, 610 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40445638&FileExtension=.PDF&FileName=Transcript%20of%20Radio%20Communications-Redacted.PDF - Reports from Federal Agencies (NTAP) (item 9, .PDF, 3.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124154&FileExtension=.PDF&FileName=Reports%20from%20Federal%20Agencies%20(NTAP)-Master.PDF - Reports from Federal Agencies (Extract Visual Radar Tracking Data) (item 10, .PDF, 846 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124155&FileExtension=.PDF&FileName=Reports%20from%20Federal%20Agencies%20(Extract%20Visual%20Radar%20Tracking%20Data)-Master.PDF - Other Pertinent Forms and Reports (Extract MD 600N Rotorcraft Flight Manual Section II Limitations) (item 11, .PDF, 74 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124156&FileExtension=.PDF&FileName=Other%20Pertinent%20Forms%20and%20Reports%20(Extract%20MD%20600N%20Rotorcraft%20Flight%20Manual%20Section%20II%20Limitations)-Master.PDF - Other Pertinent Forms and Reports (Extract Federal Regulations) (item 12, .PDF, 642 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124157&FileExtension=.PDF&FileName=Other%20Pertinent%20Forms%20and%20Reports%20(Extract%20Federal%20Regulations)-Master.PDF - Reports from Federal Agencies (Extract FAA Order of Airman Certificate Revocation Letter) (item 13, .PDF, 119 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40445639&FileExtension=.PDF&FileName=Reports%20from%20Federal%20Agencies%20(Extract%20FAA%20Order%20of%20Airman%20Certificate%20Revocation%20Letter)-Redacted.PDF - Maps or Charts of Accident Area, Wreckage Diagrams (item 14, .PDF, 229 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124159&FileExtension=.PDF&FileName=Maps%20or%20Charts%20of%20Accident%20Area,%20Wreckage%20Diagrams-Master.PDF - Other Pertinent Forms and Reports (Extract MD 600N Station Numbers) (item 15, .PDF, 78 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124160&FileExtension=.PDF&FileName=Other%20Pertinent%20Forms%20and%20Reports%20(Extract%20MD%20600N%20Station%20Numbers)-Master.PDF - Reports from Parties to the Investigation (Rolls-Royce Accident Investigation Report) (item 16, .PDF, 1.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40445640&FileExtension=.PDF&FileName=Reports%20from%20Parties%20to%20the%20Investigation%20(Rolls-Royce%20Accident%20Investigation%20Report)-Redacted.PDF - Reports from Parties to the Investigation (Boeing Accident Case File) (item 17, .PDF, 359 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124162&FileExtension=.PDF&FileName=Reports%20from%20Parties%20to%20the%20Investigation%20(Boeing%20Accident%20Case%20File)-Master.PDF - Other Pertinent Forms and Reports (Extract Sky 6 Operations and Procedures Manual) (item 18, .PDF, 827 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40445641&FileExtension=.PDF&FileName=Other%20Pertinent%20Forms%20and%20Reports%20(Extract%20Sky%206%20Operations%20and%20Procedures%20Manual)-Redacted.PDF - Other Pertinent Forms and Reports (Extract Rotorcraft Logbook) (item 19, .PDF, 188 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40445642&FileExtension=.PDF&FileName=Other%20Pertinent%20Forms%20and%20Reports%20(Extract%20Rotorcraft%20Logbook)-Redacted.PDF - Other Pertinent Forms and Reports (Wysong Enterprises, Inc., Weight and Balance Information) (item 20, .PDF, 519 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40445643&FileExtension=.PDF&FileName=Other%20Pertinent%20Forms%20and%20Reports%20(Wysong%20Enterprises,%20Inc.,%20Weight%20and%20Balance%20Information)-Redacted.PDF - Other Pertinent Forms and Reports (Extract Sky 6 Travel Log) (item 21, .PDF, 61 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124166&FileExtension=.PDF&FileName=Other%20Pertinent%20Forms%20and%20Reports%20(Extract%20Sky%206%20Travel%20Log)-Master.PDF - Other Pertinent Forms and Reports (Extract Pilot Logbook) (item 22, .PDF, 1.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40445644&FileExtension=.PDF&FileName=Other%20Pertinent%20Forms%20and%20Reports%20(Extract%20Pilot%20Logbook)-Redacted.PDF - Other Pertinent Forms and Reports (Miami-Dade Police Department Offense-Incident Report) (item 23, .PDF, 1.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40445645&FileExtension=.PDF&FileName=Other%20Pertinent%20Forms%20and%20Reports%20(Miami-Dade%20Police%20Department%20Offense-Incident%20Report)-Redacted.PDF - Other Pertinent Forms and Reports (Miami-Dade Police Department Supplemental Offense-Incident Report) (item 24, .PDF, 11.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40445646&FileExtension=.PDF&FileName=Other%20Pertinent%20Forms%20and%20Reports%20(Miami-Dade%20Police%20Department%20Supplemental%20Offense-Incident%20Report)-Redacted.PDF - Other Pertinent Forms and Reports (Fire/Property Report) (item 25, .PDF, 367 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124170&FileExtension=.PDF&FileName=Other%20Pertinent%20Forms%20and%20Reports%20(Fire%2FProperty%20Report)-Master.PDF - Statement of Party Representatives to NTSB Investigation (item 26, .PDF, 239 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40445647&FileExtension=.PDF&FileName=Statement%20of%20Party%20Representatives%20to%20NTSB%20Investigation-Redacted.PDF - Toxicological Report (item 27, .PDF, 114 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40445648&FileExtension=.PDF&FileName=Toxicological%20Report-Redacted.PDF - Release of Aircraft Wreckage, NTSB Form 6120.15 (item 28, .PDF, 177 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40445649&FileExtension=.PDF&FileName=Release%20of%20Aircraft%20Wreckage,%20NTSB%20Form%206120.15-Redacted.PDF - Photo: 1 Aerial view of N611BC crash site. No negative available. Photo provided by Miami-Dade Police Department. (item 29, .PDF, 137 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124174&FileExtension=.PDF&FileName=Photo%3A%201%20Aerial%20view%20of%20N611BC%20crash%20site.%20No%20negative%20available.%20Photo%20provided%20by%20Miami-Dade%20Police%20Department.-Master.PDF - Photo: 2 View of N611BC looking from front to rear. No negative available. Photo provided by Miamia-Dade Police Department. (item 30, .PDF, 167 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124175&FileExtension=.PDF&FileName=Photo%3A%202%20View%20of%20N611BC%20looking%20from%20front%20to%20rear.%20No%20negative%20available.%20Photo%20provided%20by%20Miamia-Dade%20Police%20Department.-Master.PDF - Photo: 3 Side view of N611BC at rest on its left side on a heading of 135 degrees magnetic. (item 31, .PDF, 150 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124176&FileExtension=.PDF&FileName=Photo%3A%203%20Side%20view%20of%20N611BC%20at%20rest%20on%20its%20left%20side%20on%20a%20heading%20of%20135%20degrees%20magnetic.-Master.PDF - Photo: 4 Left rear view of N611BC laying on its left side looking forward. (item 32, .PDF, 164 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124177&FileExtension=.PDF&FileName=Photo%3A%204%20Left%20rear%20view%20of%20N611BC%20laying%20on%20its%20left%20side%20looking%20forward.-Master.PDF - Photo: 5 Rear view of N611BC. No negative available. Photo provided by Miami-Dade Police Department. (item 33, .PDF, 175 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124178&FileExtension=.PDF&FileName=Photo%3A%205%20Rear%20view%20of%20N611BC.%20No%20negative%20available.%20Photo%20provided%20by%20Miami-Dade%20Police%20Department.-Master.PDF - Photo: 6 View of N611BC main rotor blade ground strikes. (item 34, .PDF, 184 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124179&FileExtension=.PDF&FileName=Photo%3A%206%20View%20of%20N611BC%20main%20rotor%20blade%20ground%20strikes.-Master.PDF - Photo: 7 View of N611BC separated tail boom assembly. (item 35, .PDF, 127 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124180&FileExtension=.PDF&FileName=Photo%3A%207%20View%20of%20N611BC%20separated%20tail%20boom%20assembly.-Master.PDF - Photo: 8 View of N611BC main rotor blades. Note white paint transfer marks present from contact with the tail boom assembly. (item 36, .PDF, 133 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124181&FileExtension=.PDF&FileName=Photo%3A%208%20View%20of%20N611BC%20main%20rotor%20blades.%20Note%20white%20paint%20transfer%20marks%20present%20from%20contact%20with%20the%20tail%20boom%20assembly.-Master.PDF - Photo: 9 View of N611BC main rotor blades. (item 37, .PDF, 166 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124182&FileExtension=.PDF&FileName=Photo%3A%209%20View%20of%20N611BC%20main%20rotor%20blades.-Master.PDF - Photo: 10 Photo of main rotor blade strikes on N611BC tail boom assembly. (item 38, .PDF, 69 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124183&FileExtension=.PDF&FileName=Photo%3A%2010%20Photo%20of%20main%20rotor%20blade%20strikes%20on%20N611BC%20tail%20boom%20assembly.-Master.PDF - Photo: 11 Photo of main rotor blade strikes on N611BC tail boom assembly. (item 39, .PDF, 68 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124184&FileExtension=.PDF&FileName=Photo%3A%2011%20Photo%20of%20main%20rotor%20blade%20strikes%20on%20N611BC%20tail%20boom%20assembly.-Master.PDF - Photo: 12 Fragments of N611BC tail boom assembly with evidence of main rotor blade strikes. (item 40, .PDF, 121 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40124185&FileExtension=.PDF&FileName=Photo%3A%2012%20Fragments%20of%20N611BC%20tail%20boom%20assembly%20with%20evidence%20of%20main%20rotor%20blade%20strikes.-Master.PDF From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.