# NTSB CHI99FA285: Bell 206B, N67JJ, Custer, SD, August 10, 1999

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: August 10, 1999, 17:30 local (23:30 UTC)
- Place: Custer, SD
- Coordinates: 43.76033, -103.600898 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=43.7603&lon=-103.6009&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal, 2 serious, 1 minor
- Status: Completed, report January 24, 2001
- Report: Approved by Office Director
- NTSB case key (mKey): 47063
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI99FA285
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/47063/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=47063
- Page: https://openairdocs.org/ntsb/CHI99FA285

## Probable cause

The pilot's failure to maintain adequate altitude/clearance from the trees.  Contributing to the accident was the pilot's inadvertent settling with power.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- In flight collision with object, maneuvering
  - object - tree(s) (contributing factor)
  - altitude/clearance - inadequate, pilot in command (cause)
  - maneuver - performed, pilot in command (contributing factor)
  - settling with power - inadvertent, pilot in command (contributing factor)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

The helicopter impacted trees and terrain while maneuvering during a sightseeing flight over a national park.  The helicopter was in a descending left turn and a high angle of bank with decreasing main rotor rpm.  A low rpm warning horn was heard several seconds prior to impact with the trees.  An acoustical analysis of a video tape taken by a passenger shows a decrease in the engine gear box and planetary speeds along with a steady state engine speed several seconds prior to the end of the video tape.  The end of the video tape recorded the initial impact with the trees. Examination of the engine and airframe revealed no anomalies.

## Factual narrative

HISTORY OF FLIGHT

On August 10, 1999, at 1730 mountain daylight time, a Bell 206B, N67JJ, operated by Rapid Helicopters Incorporated, was destroyed on impact with trees and terrain while maneuvering over Custer State Park, South Dakota.  Visual meteorological conditions prevailed at the time of the accident.  The 14 CFR Part 91 sightseeing flight was not operating on a flight plan.  The pilot and one passenger sustained fatal injuries; two of the passengers sustained serious injuries, and the remaining passenger sustained minor injuries.  The flight originated, at approximately 1715, from a private heliport located approximately 6 miles southwest of the accident site.

A police report documented the interview of two of the passengers.  The report states the following:

"They stated the pilot had been flying for approximately 7 hours today while they were in the air.  He made a sweep over Mt. Rushmore and turned the helicopter on it's side to get a better view of the sights.  They said he did this at the Needles Eye to get another view.  [One of the passengers] stated the Helicopter made the same maneuver as at Mt. Rushmore but then felt as if the helicopter went into a power slide.  [The passenger] also stated the pilot went too far in trying to make the maneuver.  The helicopter hit the trees and rocks and then crashed.  [The other passenger] stated the helicopter started vibrating real bad before the crash.  He stated the vibrating occurred during the sweeping maneuver..."

A copy of a video tape taken by a passenger during the accident flight along with a map of the accident area is included in this report.  The video tape shows the helicopter in a descending left turn and a high angle of bank prior to impact.

PERSONNEL INFORMATION

The pilot was 28 years old and held a commercial pilot certificate with airplane single engine land, airplane multiengine land, rotorcraft-helicopter and instrument airplane and helicopter ratings.  The pilot received a first class medical certificate on December 11, 1998.  He had accumulated a total airplane flight time of 316 hours and a total helicopter flight time of 1,300 hours.

AIRCRAFT INFORMATION

The 1989 Bell 206B, serial number 4062, was powered by a Rolls-Royce Allison 250-C20B turboshaft engine, serial number CAE 270448, rated at 420 shaft horse power (SHP).  The helicopter accumulated a total airframe and engine time of 2,720.5 hours.  A 100-hour inspection of the airframe and engine was completed on July 31, 1999 at a total airframe and engine time of 2,675.6 hours.

The helicopter has a total fuel capacity of 84.1 gallons with a usable fuel capacity of 82.6 gallons.  Examination of the helicopter's annuciator panel revealed that it was not equipped with a "fuel low" annunciator light.

WRECKAGE AND IMPACT INFORMATION

The main wreckage was located at 43 degrees 50 minutes 476 seconds North and 103 degrees 32 minutes 820 seconds West and within a wooded area of trees which were estimated to be 50 feet in height.  The elevation of the accident site was approximately 6,500 feet msl.  The fuselage was resting on its left side and on a westerly heading as viewed from tail to the nose of the helicopter toward the bottom of a 30 degree slope at the top of which was Highway 87 or Needles Highway.  The tail boom was resting approximately 15 feet from the main wreckage.

Flight control continuity from both pedals and both stick controls was established.  Engine control continuity from the cockpit to the engine was also established.  Continuity of the main rotor transmission was established.  Approximately 6 gallons of liquid consistent with Jet A aviation fuel was drained from the helicopter's fuel tank.  Approximately 5 cc of liquid consistent with Jet A was drained from the fuel line leading to the fuel nozzle.  The airframe fuel filter was unobstructed and contained approximately 11 oz of liquid consistent with Jet A.  The engine was removed and shipped to Rolls-Royce Allison for testing.

MEDICAL AND PATHOLOGICAL INFORMATION

The FAA toxicological test of the pilot were positive for dextromethorphan, dextrorphan, ephedrine, pseudoephedrine, and phenylpropanolamine.  Pseudoephedrine is a common decongestant with a trade name Sudafed that is found in many over-the-counter cold and allergy preparations.  Ephedrine is sold as an asthama medication with a trade name Primatene available over-the counter in tablet form.  Ephedrine and pseudoephedrine are often found together in the herbal supplement "Ma Huang" also known as "ephedera".  "Ma Huang" is used as an "energy booster", stimulant, weight loss product, or decongestant in many nutritional supplements.  Phenylpropanolamine is an over-the-counter decongestant, also marketed as a weight loss product.  It is also a metabolite of ephedrine and pseudoephedrine.  Dextromethorphan is an over-the-counter cough suppressant, available in a large number of preparations, including many multi-symptom cold relievers.

The left front passenger's FAA toxicological test results were negative for all substances tested.

An autopsy of the pilot was conducted by the Clinical Laboratory of the Black Hills, Rapid City, South Dakota.

TESTS AND RESEARCH

According to the Rolls-Royce Accident Investigation and Engine Test Run Report, which is included in this report, the percent shaft horsepower for 6 data points ranged from 18.125 - 35.978 percent shaft horsepower below rated power during the test run.

ADDITIONAL INFORMATION

The Federal Aviation Administration, Bell Helicopter and Roll-Royce Allison were parties to the investigation.

The wreckage was released to the registered owner.

## Aircraft

- Registration: [N67JJ](https://openairdocs.org/aircraft/N67JJ), registered now, S/N 4062 (OpenAirDocs)
- Reported make and model: Bell 206B
- Registry model: [Bell 206B](https://openairdocs.org/model/bell-206b) (registry code 1181511) (OpenAirDocs)
- Category: Helicopter
- Serial number: 4062
- Airframe hours: 2721
- Engines: Rolls-Royce 250-C20B 420 horsepower turbo shaft
- Damage: Destroyed
- Flight: Part 91
- Operator: Rapid Helicopters Incorporated
- Registered owner: Interstate Helicopters
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, July 31, 1999, 45 hours before
- Departed: SD

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 28; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane, helicopter; medical: class 1, valid medical--w/ waivers/lim; seat: right; toxicology performed; flight hours: 1,616 total, 295 in this make and model, 158 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 190° at 15 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 90 °F, dew point 57 °F
- Altimeter: 29.00 inHg
- Observed at: RAP

## 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 19990810011649A](https://openairdocs.org/incident/19990810011649A), Aug 10, 1999: Bell 206B, Custer, SD, Destroyed, 2 fatal. Acft involved in a sightseeing operation when it crashed in mountainous terrain under unknown circumstances, 2 POB suffered fatal injuries, 3 others have…

## Docket (84 files)

The files NTSB released with the investigation on December 19, 2000, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=47063. 11.1 MB in all.

- Supplement C (item 1, .PDF, 473 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131514&FileExtension=.PDF&FileName=Supplement%20C-Master.PDF
- Supplement D (item 2, .PDF, 564 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131515&FileExtension=.PDF&FileName=Supplement%20D-Master.PDF
- Supplement S (item 3, .PDF, 74 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131516&FileExtension=.PDF&FileName=Supplement%20S-Master.PDF
- Materials Laboratory Factual Report (item 4, .PDF, 69 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40440237&FileExtension=.PDF&FileName=Materials%20Laboratory%20Factual%20Report-Redacted.PDF
- Witness Statements (item 5, .PDF, 414 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40440235&FileExtension=.PDF&FileName=Witness%20Statements-Redacted.PDF
- Maps/Charts of Accident Area (item 6, .PDF, 1.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131519&FileExtension=.PDF&FileName=Maps%2FCharts%20of%20Accident%20Area-Master.PDF
- Weather Reports (item 7, .PDF, 126 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131520&FileExtension=.PDF&FileName=Weather%20Reports%20-Master.PDF
- Custer County Sheriff's Department (item 8, .PDF, 397 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40440236&FileExtension=.PDF&FileName=Custer%20County%20Sheriff%27s%20Department-Redacted.PDF
- Pilot Information (item 9, .PDF, 148 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40440238&FileExtension=.PDF&FileName=Pilot%20Information-Redacted.PDF
- Bell Helicopter Textron Factual Mishap Report (item 10, .PDF, 1.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40440239&FileExtension=.PDF&FileName=Bell%20Helicopter%20Textron%20Factual%20Mishap%20Report-Redacted.PDF
- Rolls-Royce Accident Investigation and Engine Test Run Report (item 11, .PDF, 1.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40440240&FileExtension=.PDF&FileName=Rolls-Royce%20Accident%20Investigation%20and%20Engine%20Test%20Run%20Report-Redacted.PDF
- Bell Helicopter Tetron Accident Investigation - Acoustic Analysis (item 12, .PDF, 560 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131525&FileExtension=.PDF&FileName=Bell%20Helicopter%20Tetron%20Accident%20Investigation%20-%20Acoustic%20Analysis-Master.PDF
- Bell Helicopter Textron - Acoustic Analysis - Figure 1. 206B111 Accident Acoustic Analysis (item 13, .PDF, 58 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131526&FileExtension=.PDF&FileName=Bell%20Helicopter%20Textron%20-%20Acoustic%20Analysis%20-%20Figure%201.%20206B111%20Accident%20Acoustic%20Analysis-Master.PDF
- Figure 2. Bell 206B111 Detailed Acoustic Analysis Summary (item 14, .PDF, 54 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131527&FileExtension=.PDF&FileName=Figure%202.%20%20Bell%20206B111%20Detailed%20Acoustic%20Analysis%20Summary-Master.PDF
- Figure 3. Engine Compressor Stage 2 Blade Passage Frequency Time History (item 15, .PDF, 41 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131528&FileExtension=.PDF&FileName=Figure%203.%20%20Engine%20Compressor%20Stage%202%20Blade%20Passage%20Frequency%20Time%20History-Master.PDF
- Figure 4. Engine Compressor Spectra During Initial Transient (item 16, .PDF, 41 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131529&FileExtension=.PDF&FileName=Figure%204.%20%20Engine%20Compressor%20Spectra%20During%20Initial%20Transient-Master.PDF
- Figure 5. Engine Gearbox Acoustic Time History (item 17, .PDF, 50 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131530&FileExtension=.PDF&FileName=Figure%205.%20%20Engine%20Gearbox%20Acoustic%20Time%20History-Master.PDF
- Figure 6. Planetary Gear Mesh Acoustic Time History (item 18, .PDF, 61 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131531&FileExtension=.PDF&FileName=Figure%206.%20%20Planetary%20Gear%20Mesh%20Acoustic%20Time%20History-Master.PDF
- Figure 7. Tail Rotor Acoustic Signature (item 19, .PDF, 39 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131532&FileExtension=.PDF&FileName=Figure%207.%20%20Tail%20Rotor%20Acoustic%20Signature-Master.PDF
- Figure 8. Tail Rotor 4/Rev Acoustic Time History (item 20, .PDF, 68 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131533&FileExtension=.PDF&FileName=Figure%208.%20%20Tail%20Rotor%204%2FRev%20Acoustic%20Time%20History-Master.PDF
- Figure 9. Tail Rotor 4/Rev During Initial Transient (item 21, .PDF, 61 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131534&FileExtension=.PDF&FileName=Figure%209.%20%20Tail%20Rotor%204%2FRev%20During%20Initial%20Transient-Master.PDF
- Video Tape Information Provided by Glenn Locklear (item 22, .PDF, 27 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131535&FileExtension=.PDF&FileName=Video%20Tape%20Information%20Provided%20by%20Glenn%20Locklear-Master.PDF
- Parker Hannifin Corporation Airborne Division 1C38-1 Centrifugal Fuel Boost Pump Examination (item 23, .PDF, 283 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40440241&FileExtension=.PDF&FileName=Parker%20Hannifin%20Corporation%20Airborne%20Division%201C38-1%20Centrifugal%20Fuel%20Boost%20Pump%20Examination-Redacted.PDF
- Parker Hannafin Examination Photo 1 Roll 1 (item 24, .PDF, 35 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131537&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%201%20%20Roll%201%20%20-Master.PDF
- Parker Hannafin Examination Photo 2 Roll 1 (item 25, .PDF, 36 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131538&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%202%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 3 Roll 1 (item 26, .PDF, 39 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131539&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%203%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 4 Roll 1 (item 27, .PDF, 40 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131540&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%204%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 5 Roll 1 (item 28, .PDF, 36 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131541&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%205%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 6 Roll 1 (item 29, .PDF, 28 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131542&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%206%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 7 Roll 1 (item 30, .PDF, 28 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131543&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%207%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 8 Roll 1 (item 31, .PDF, 32 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131544&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%208%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 9 Roll 1 (item 32, .PDF, 29 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131545&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%209%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 10 Roll 1 (item 33, .PDF, 31 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131546&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2010%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 11 Roll 1 (item 34, .PDF, 33 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131547&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2011%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 12 Roll 1 (item 35, .PDF, 30 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131548&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2012%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 13 Roll 1 (item 36, .PDF, 30 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131549&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2013%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 14 Roll 1 (item 37, .PDF, 26 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131550&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2014%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 15 Roll 1 (item 38, .PDF, 28 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131551&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2015%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 16 Roll 1 (item 39, .PDF, 27 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131552&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2016%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 17 Roll 1 (item 40, .PDF, 33 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131553&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2017%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 18 Roll 1 (item 41, .PDF, 38 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131554&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2018%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 19 Roll 1 (item 42, .PDF, 38 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131555&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2019%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 20 Roll 1 (item 43, .PDF, 27 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131556&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2020%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 21 Roll 1 (item 44, .PDF, 27 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131557&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2021%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 22 Roll 1 (item 45, .PDF, 31 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131558&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2022%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 23 Roll 1 (item 46, .PDF, 31 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131559&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2023%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 24 Roll 1 (item 47, .PDF, 30 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131560&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2024%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 25 Roll 1 (item 48, .PDF, 31 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131561&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2025%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 26 Roll 1 (item 49, .PDF, 32 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131562&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2026%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 27 Roll 1 (item 50, .PDF, 33 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131563&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2027%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 28 Roll 1 (item 51, .PDF, 35 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131564&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2028%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 29 Roll 1 (item 52, .PDF, 38 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131565&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2029%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 30 Roll 1 (item 53, .PDF, 31 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131566&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2030%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 31 Roll 1 (item 54, .PDF, 31 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131567&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2031%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 32 Roll 1 (item 55, .PDF, 30 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131568&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2032%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 33 Roll 1 (item 56, .PDF, 35 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131569&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2033%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 34 Roll 1 (item 57, .PDF, 31 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131570&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2034%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 35 Roll 1 (item 58, .PDF, 30 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131571&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2035%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 36 Roll 1 (item 59, .PDF, 29 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131572&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2036%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 37 Roll 1 (item 60, .PDF, 30 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131573&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2037%20%20Roll%201-Master.PDF
- Parker Hannafin Examination Photo 1 Roll 2 (item 61, .PDF, 26 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131574&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%201%20%20Roll%202-Master.PDF
- Parker Hannafin Examination Photo 2 Roll 2 (item 62, .PDF, 28 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131575&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%202%20%20Roll%202-Master.PDF
- Parker Hannafin Examination Photo 3 Roll 2 (item 63, .PDF, 30 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131576&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%203%20%20Roll%202-Master.PDF
- Parker Hannafin Examination Photo 4 Roll 2 (item 64, .PDF, 30 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131577&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%204%20%20Roll%202-Master.PDF
- Parker Hannafin Examination Photo 5 Roll 2 (item 65, .PDF, 29 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131578&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%205%20%20Roll%202-Master.PDF
- Parker Hannafin Examination Photo 6 Roll 2 (item 66, .PDF, 31 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131579&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%206%20%20Roll%202-Master.PDF
- Parker Hannafin Examination Photo 7 Roll 2 (item 67, .PDF, 33 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131580&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%207%20%20Roll%202-Master.PDF
- Parker Hannafin Examination Photo 8 Roll 2 (item 68, .PDF, 34 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131581&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%208%20%20Roll%202-Master.PDF
- Parker Hannafin Examination Photo 9 Roll 2 (item 69, .PDF, 33 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131582&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%209%20%20Roll%202-Master.PDF
- Parker Hannafin Examination Photo 10 Roll 2 (item 70, .PDF, 28 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131583&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2010%20%20Roll%202-Master.PDF
- Parker Hannafin Examination Photo 11 Roll 2 (item 71, .PDF, 32 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131584&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2011%20%20Roll%202-Master.PDF
- Parker Hannafin Examination Photo 12 Roll 2 (item 72, .PDF, 32 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131585&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2012%20%20Roll%202-Master.PDF
- Parker Hannafin Examination Photo 13 Roll 2 (item 73, .PDF, 32 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131586&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2013%20%20Roll%202-Master.PDF
- Parker Hannafin Examination Photo 14 Roll 2 (item 74, .PDF, 32 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131587&FileExtension=.PDF&FileName=Parker%20Hannafin%20Examination%20Photo%2014%20%20Roll%202-Master.PDF
- Parker Hannafin Corporation Airborne Division 1C38-1 Centrifual Fuel Boost Pump Examination - Appendix B, Acceptance Test Data (item 75, .PDF, 114 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131588&FileExtension=.PDF&FileName=Parker%20Hannafin%20Corporation%20Airborne%20Division%201C38-1%20Centrifual%20Fuel%20Boost%20Pump%20Examination%20-%20Appendix%20B,%20Acceptance%20Test%20Data-Master.PDF
- Statement of Party Representatives to NTSB Investigation (item 76, .PDF, 430 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40440242&FileExtension=.PDF&FileName=Statement%20of%20Party%20Representatives%20to%20NTSB%20Investigation-Redacted.PDF
- Release of Aircraft Wreckage, NTSB Form 6120.15 (item 77, .PDF, 96 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40440243&FileExtension=.PDF&FileName=Release%20of%20Aircraft%20Wreckage,%20NTSB%20Form%206120.15-Redacted.PDF
- Toxicological Reports (item 78, .PDF, 122 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40440244&FileExtension=.PDF&FileName=Toxicological%20Reports-Redacted.PDF
- Photo 1. Accident Site (item 79, .PDF, 191 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131592&FileExtension=.PDF&FileName=Photo%201.%20%20Accident%20Site-Master.PDF
- Photo 2. Main Wreckage (item 80, .PDF, 227 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131593&FileExtension=.PDF&FileName=Photo%202.%20%20Main%20Wreckage-Master.PDF
- Photo 3. Main Wreckage (item 81, .PDF, 212 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131594&FileExtension=.PDF&FileName=Photo%203.%20%20Main%20Wreckage-Master.PDF
- Photo 4. Main Wreckage (item 82, .PDF, 219 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131595&FileExtension=.PDF&FileName=Photo%204.%20%20Main%20Wreckage-Master.PDF
- Photo 5. Main Wreckage (item 83, .PDF, 196 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131596&FileExtension=.PDF&FileName=Photo%205.%20%20Main%20Wreckage-Master.PDF
- Photo 6. Liquid From Helicopter Fuel Tank (item 84, .PDF, 152 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40131597&FileExtension=.PDF&FileName=Photo%206.%20%20Liquid%20From%20Helicopter%20Fuel%20Tank-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.
