# Bell 47D1

- Type: Aircraft model (FAA registry)
- Registry code: 1180802
- Manufacturer (registry): BELL
- Model: 47D1
- Aircraft type: Rotorcraft
- Category: Rotorcraft
- Engines: 1 · Reciprocating
- Seats: 3
- Weight class: Up to 12,499 lb
- Cruise speed: 78 mph
- Certification: Type certificated
- Data sheet: [TCDS H-1](https://openairdocs.org/tcds/H-1) (OpenAirDocs)
- Holder: Scott's-Bell 47 Inc
- Registered aircraft: 47
- Page: https://openairdocs.org/model/bell-47d1

Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker.

## ADs that may apply (OpenAirDocs)

Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

- [AD 2023-11-07](https://openairdocs.org/ad/2023-11-07): Ground Proximity System · Airbus Helicopters 47, 206, 210 and 237 more. Effective Jun 22, 2023
- [AD 2009-12-01](https://openairdocs.org/ad/2009-12-01): Main rotor blade box beam clip (clip) · Scotts-Bell 47 47, 47B, 47B3 and 21 more. Effective Jun 29, 2009
- [AD 2005-21-04](https://openairdocs.org/ad/2005-21-04): Weld assembly scissors bracket · Revise mast controls and remove stabilizer bar and install… (Scott's-Bell 47 STC SH2772SW). Effective Nov 21, 2005
- [AD 2001-17-17](https://openairdocs.org/ad/2001-17-17): Main Rotor Blade Grip Threads · Scotts-Bell 47 47B, 47B3, 47D and 19 more. Effective Oct 3, 2001
- [AD 98-07-09](https://openairdocs.org/ad/98-07-09): Stabilizer Bar Damper Link Assembly · Scotts-Bell 47 47B, 47B3, 47D and 19 more. Effective May 6, 1998
- [AD 96-06-12](https://openairdocs.org/ad/96-06-12): Inspect Tail Rotor Blade & Abrasion Strip · Scotts-Bell 47 47B, 47B3, 47D and 19 more. Effective May 29, 1996
- [AD 85-15-04](https://openairdocs.org/ad/85-15-04): Tail Rotor Blade Yolk P/N 74-641-057-9 · Scotts-Bell 47 47B, 47B3, 47D and 7 more. Effective Jan 8, 1986
- [AD 85-08-03](https://openairdocs.org/ad/85-08-03): Tail Rotor Blade Assemblies · Scotts-Bell 47 47, 47B, 47B3 and 21 more. Effective Apr 29, 1985
- [AD 81-17-01](https://openairdocs.org/ad/81-17-01): Starting Vibrator Assemblies · Bendix Starting Vibrator Assemblies, B-2, B-2A and 49 more. Effective Aug 13, 1981
- [AD 80-10-04 R1](https://openairdocs.org/ad/80-10-04-R1): Tail Rotor Blades · Continental Copters OH-13H, OH-13E, OH-13E and 26 more. Effective Feb 28, 1981
- [AD 81-04-03](https://openairdocs.org/ad/81-04-03): Tail Rotor Drive Assembly · Continental Copters OH-13H, OH-13E, OH-13E and 26 more. Effective Feb 2, 1981
- [AD 80-21-09 R1](https://openairdocs.org/ad/80-21-09-R1): Tail Rotor Pitch Link · Continental Copters OH-13H, OH-13E, OH-13E and 26 more. Effective Nov 24, 1980
- [AD 78-03-01](https://openairdocs.org/ad/78-03-01): Hopper Support Bracket (STC SH357SW) · Scotts-Bell 47 47, 47B, 47B3 and 21 more. Effective Mar 6, 1978
- [AD 77-21-01](https://openairdocs.org/ad/77-21-01): Tail Rotor Gear Boxes · Scotts-Bell 47 47, 47B, 47B3 and 21 more. Effective Nov 14, 1977
- [AD 70-10-08](https://openairdocs.org/ad/70-10-08): Tail Rotor Grips · Scotts-Bell 47 47, 47B, 47B3 and 21 more. Effective Jul 20, 1976
- [AD 76-12-02](https://openairdocs.org/ad/76-12-02): Tail Rotor Yoke · Scotts-Bell 47 47B, 47B3, 47D and 5 more. Effective Jul 14, 1976
- [AD 76-12-01](https://openairdocs.org/ad/76-12-01): Tail Rotor Hub Bolt · Scotts-Bell 47 47B, 47B3, 47D and 4 more. Effective Jul 14, 1976
- [AD 75-18-06](https://openairdocs.org/ad/75-18-06): Tail Rotor Pitch Control · Scotts-Bell 47 47B, 47B3, 47D and 5 more. Effective Sep 19, 1975
- [AD 74-08-02](https://openairdocs.org/ad/74-08-02): Mast Control Stabilizer Bar Assembly · Scotts-Bell 47 47, 47B, 47B3 and 21 more. Effective Jun 14, 1974
- [AD 74-07-01](https://openairdocs.org/ad/74-07-01): Main Rotor Control Tube Assembly · Scotts-Bell 47 47, 47B, 47B3 and 21 more. Effective May 30, 1974
- [AD 73-19-04](https://openairdocs.org/ad/73-19-04): Main Rotor Blade Grip · Scotts-Bell 47 47, 47B, 47B3 and 21 more. Effective Oct 10, 1973
- [AD 70-08-02](https://openairdocs.org/ad/70-08-02): Tail Rotor Drive Shaft · Scotts-Bell 47 47, 47B, 47B3 and 21 more. Effective Jan 1, 1971
- [AD 70-14-01](https://openairdocs.org/ad/70-14-01): Tail Rotor Pitch · Scotts-Bell 47 47D1, 47G, 47G-2 and 1 more. Effective Aug 17, 1970
- [AD 70-14-02](https://openairdocs.org/ad/70-14-02): Tail Rotor Hub Assembly Bolt · Scotts-Bell 47 47D, 47D1, 47G and 2 more. Effective Aug 10, 1970
- [AD 70-11-04](https://openairdocs.org/ad/70-11-04): Wood Main Rotor Blades · Scotts-Bell 47 47B, 47B3, 47D and 4 more. Effective Jun 26, 1970
- [AD 65-04-01](https://openairdocs.org/ad/65-04-01): Freewheeling Clutch · Scotts-Bell 47 47, 47B, 47B3 and 21 more. Effective Feb 17, 1965
- [AD 62-27-02](https://openairdocs.org/ad/62-27-02): Wood Tail Rotor Blades · Scotts-Bell 47 47, 47B, 47B3 and 21 more. Effective Jan 29, 1963
- [AD 62-23-02](https://openairdocs.org/ad/62-23-02): Main Rotor Mast Thrust Bearing · Scotts-Bell 47 47, 47B, 47B3 and 21 more. Effective Oct 29, 1962
- [AD 61-22-01](https://openairdocs.org/ad/61-22-01): Pitch Link Rod End Bearing · Scotts-Bell 47 47, 47B, 47B3 and 21 more. Effective Nov 7, 1961
- [AD 60-10-01](https://openairdocs.org/ad/60-10-01): Scissor Lever Bolts · Scotts-Bell 47 47B, 47B3, 47D and 7 more
- [AD 73-19-02](https://openairdocs.org/ad/73-19-02): Tail Rotor Yoke · Scotts-Bell 47 47B, 47B3, 47D and 5 more
- [AD 59-05-01](https://openairdocs.org/ad/59-05-01): Tail Rotor Blade Inspection · Scotts-Bell 47 47, 47B, 47B3 and 21 more
- [AD 58-26-02](https://openairdocs.org/ad/58-26-02): M-S MA4-5AA Carburetor · Scotts-Bell 47 47, 47B, 47B3 and 21 more
- [AD 58-23-01](https://openairdocs.org/ad/58-23-01): Tail Rotor Pitch Change Bearings · Scotts-Bell 47 47B, 47B3, 47D and 4 more
- [AD 57-12-04](https://openairdocs.org/ad/57-12-04): Tail Rotor Blade Inspection · Scotts-Bell 47 47B, 47B3, 47D and 5 more
- [AD 57-08-02](https://openairdocs.org/ad/57-08-02): Parker Check Valve · Scotts-Bell 47 47B3, 47D, 47D1 and 2 more
- [AD 57-08-01](https://openairdocs.org/ad/57-08-01): Tail Rotor Drive Shafts · Scotts-Bell 47 47, 47B, 47B3 and 21 more
- [AD 57-07-02](https://openairdocs.org/ad/57-07-02): Rotor Hub Equalizer Link · Scotts-Bell 47 47, 47B, 47B3 and 21 more
- [AD 56-25-02](https://openairdocs.org/ad/56-25-02): Tail Rotor Pitch Bearings · Scotts-Bell 47 47, 47B, 47B3 and 21 more
- [AD 56-20-03](https://openairdocs.org/ad/56-20-03): Tail Rotor Hub Bolts · Scotts-Bell 47 47B, 47B3, 47D and 4 more
- [AD 56-15-02](https://openairdocs.org/ad/56-15-02): Swashplate Control Ring · Scotts-Bell 47 47, 47B, 47B3 and 21 more
- [AD 56-05-01](https://openairdocs.org/ad/56-05-01): Tail Rotor Drive Shafts · Scotts-Bell 47 47, 47B, 47B3 and 21 more
- [AD 55-16-01](https://openairdocs.org/ad/55-16-01): Tail Rotor Hub Fillet · Scotts-Bell 47 47, 47B, 47B3 and 21 more
- [AD 55-05-01](https://openairdocs.org/ad/55-05-01): Pitch Control Link · Scotts-Bell 47 47B, 47B3, 47D and 2 more
- [AD 54-24-01](https://openairdocs.org/ad/54-24-01): Antitorque Pedal Stops · Scotts-Bell 47 47B, 47B3, 47D and 3 more
- [AD 53-01-01](https://openairdocs.org/ad/53-01-01): Gearbox Mounting Sleeve · Scotts-Bell 47 47D1
- [AD 52-28-04](https://openairdocs.org/ad/52-28-04): Tail Rotor Pinion Shaft · Scotts-Bell 47 47B, 47B3, 47D and 1 more
- [AD 52-28-03](https://openairdocs.org/ad/52-28-03): Tail Rotor Gearbox Shaft · Scotts-Bell 47 47, 47B, 47B3 and 21 more
- [AD 52-21-01](https://openairdocs.org/ad/52-21-01): Lord Mount Guards · Scotts-Bell 47 47, 47B, 47B3 and 21 more
- [AD 52-07-01](https://openairdocs.org/ad/52-07-01): Loading Chart Decal · Scotts-Bell 47 47D1

Historical (superseded or no longer in force):

- [AD 2021-23-13](https://openairdocs.org/ad/2021-23-13) (historical): Ground Proximity System · Airbus Helicopters K-225, K-190A, K-240 and 237 more. Effective Dec 9, 2021
- [AD 2000-18-51](https://openairdocs.org/ad/2000-18-51) (historical): Main Rotor Blade Grip · Bell Helicopter Textron 47B, 47B3, 47D and 19 more. Effective Nov 30, 2000
- [AD 86-06-08 R1](https://openairdocs.org/ad/86-06-08-R1) (historical): Main Rotor Blade Grips · Bell Helicopter Textron 47B, 47B3, 47D and 25 more. Effective Jul 10, 1987

All 66: https://openairdocs.org/model/bell-47d1/ads.md

## Registered aircraft (47)

- [N10065](https://openairdocs.org/aircraft/N10065): [Johnson Kyle](https://openairdocs.org/faa-owner/JOHNSON%20KYLE), [Exira, IA](https://openairdocs.org/faa-place/IA/Exira), built 1949, S/N 830
- [N12087](https://openairdocs.org/aircraft/N12087): [Western Antique Aeroplane & Automobile Museum](https://openairdocs.org/faa-owner/WESTERN%20ANTIQUE%20AEROPLANE%20%26%20AUTOMOBILE%20MUSEUM), [Hood River, OR](https://openairdocs.org/faa-place/OR/Hood%20River), S/N 734
- [N132BR](https://openairdocs.org/aircraft/N132BR): [Steinheiser Terry N](https://openairdocs.org/faa-owner/STEINHEISER%20TERRY%20N), [Renfrew, PA](https://openairdocs.org/faa-place/PA/Renfrew), built 1951, S/N 51-332
- [N140B](https://openairdocs.org/aircraft/N140B): [L Bachman LLC](https://openairdocs.org/faa-owner/L%20BACHMAN%20LLC), [Independence, IA](https://openairdocs.org/faa-place/IA/Independence), built 1947, S/N 60
- [N153B](https://openairdocs.org/aircraft/N153B): [Scotts Helicopter Service](https://openairdocs.org/faa-owner/SCOTTS%20HELICOPTER%20SERVICE), [Le Sueur, MN](https://openairdocs.org/faa-place/MN/Le%20Sueur), built 1947, S/N 7
- [N157B](https://openairdocs.org/aircraft/N157B): [Lewis Gerald K](https://openairdocs.org/faa-owner/LEWIS%20GERALD%20K), [Bakersfield, CA](https://openairdocs.org/faa-place/CA/Bakersfield), built 1947, S/N 11
- [N160B](https://openairdocs.org/aircraft/N160B): [James David R](https://openairdocs.org/faa-owner/JAMES%20DAVID%20R), [Wayne, MI](https://openairdocs.org/faa-place/MI/Wayne), built 1947, S/N 14
- [N16356](https://openairdocs.org/aircraft/N16356): [Modern American Warrior Inc](https://openairdocs.org/faa-owner/MODERN%20AMERICAN%20WARRIOR%20INC), [Spring, TX](https://openairdocs.org/faa-place/TX/Spring), built 1951, S/N 536
- [N182B](https://openairdocs.org/aircraft/N182B): [Lay Lawrence W](https://openairdocs.org/faa-owner/LAY%20LAWRENCE%20W), [Douglass, KS](https://openairdocs.org/faa-place/KS/Douglass), built 1948, S/N 36
- [N184B](https://openairdocs.org/aircraft/N184B): [Taz Air Service Inc](https://openairdocs.org/faa-owner/TAZ%20AIR%20SERVICE%20INC), [Middletown, DE](https://openairdocs.org/faa-place/DE/Middletown), built 1959, S/N 45
- [N202CH](https://openairdocs.org/aircraft/N202CH): [Bavarian Barnstormers 2 Inc](https://openairdocs.org/faa-owner/BAVARIAN%20BARNSTORMERS%202%20INC), [North Fort Myers, FL](https://openairdocs.org/faa-place/FL/North%20Fort%20Myers), built 1951, S/N 301
- [N225B](https://openairdocs.org/aircraft/N225B): [Hammock Flying Service Inc](https://openairdocs.org/faa-owner/HAMMOCK%20FLYING%20SERVICE%20INC), [Smithville, AR](https://openairdocs.org/faa-place/AR/Smithville), built 1949, S/N 149
- [N237DJ](https://openairdocs.org/aircraft/N237DJ): [James David R](https://openairdocs.org/faa-owner/JAMES%20DAVID%20R), [Wayne, MI](https://openairdocs.org/faa-place/MI/Wayne), S/N 237
- [N3103G](https://openairdocs.org/aircraft/N3103G): [Lancaster Helicopters Inc](https://openairdocs.org/faa-owner/LANCASTER%20HELICOPTERS%20INC), [Landisville, PA](https://openairdocs.org/faa-place/PA/Landisville), built 1959, S/N 185
- [N310A](https://openairdocs.org/aircraft/N310A): [Anverse Inc](https://openairdocs.org/faa-owner/ANVERSE%20INC), [Cartersville, GA](https://openairdocs.org/faa-place/GA/Cartersville), built 1947, S/N 82
- [N3116G](https://openairdocs.org/aircraft/N3116G): [Alvis Michael E](https://openairdocs.org/faa-owner/ALVIS%20MICHAEL%20E), [Parkton, NC](https://openairdocs.org/faa-place/NC/Parkton), S/N 284
- [N347WM](https://openairdocs.org/aircraft/N347WM): [Lancaster Helicopters Inc](https://openairdocs.org/faa-owner/LANCASTER%20HELICOPTERS%20INC), [Landisville, PA](https://openairdocs.org/faa-place/PA/Landisville), S/N 61
- [N4250A](https://openairdocs.org/aircraft/N4250A): [Ixl Inc](https://openairdocs.org/faa-owner/IXL%20INC), [Sulphur, LA](https://openairdocs.org/faa-place/LA/Sulphur), S/N 421
- [N4702S](https://openairdocs.org/aircraft/N4702S): [Ad-Air And Ag LLC](https://openairdocs.org/faa-owner/AD-AIR%20AND%20AG%20LLC), [Dothan, AL](https://openairdocs.org/faa-place/AL/Dothan), S/N B-101R
- [N555EN](https://openairdocs.org/aircraft/N555EN): [Setnar Stephen R](https://openairdocs.org/faa-owner/SETNAR%20STEPHEN%20R), [Butler, PA](https://openairdocs.org/faa-place/PA/Butler), built 1947, S/N 6
- [N63300](https://openairdocs.org/aircraft/N63300): [Bassett Tommy J](https://openairdocs.org/faa-owner/BASSETT%20TOMMY%20J), [Ashford, AL](https://openairdocs.org/faa-place/AL/Ashford), built 1951, S/N 841
- [N6579D](https://openairdocs.org/aircraft/N6579D): [Ixl Inc](https://openairdocs.org/faa-owner/IXL%20INC), [Sulphur, LA](https://openairdocs.org/faa-place/LA/Sulphur), S/N 895
- [N7137Z](https://openairdocs.org/aircraft/N7137Z): [Greenway Michael D](https://openairdocs.org/faa-owner/GREENWAY%20MICHAEL%20D), [Friday Harbor, WA](https://openairdocs.org/faa-place/WA/Friday%20Harbor), built 1948, S/N 19
- [N74004](https://openairdocs.org/aircraft/N74004): [House Guy C](https://openairdocs.org/faa-owner/HOUSE%20GUY%20C), [Castle Creek, NY](https://openairdocs.org/faa-place/NY/Castle%20Creek), built 1951, S/N 403
- [N74005](https://openairdocs.org/aircraft/N74005): [Newton Property Leasing LLC](https://openairdocs.org/faa-owner/NEWTON%20PROPERTY%20LEASING%20LLC), [Greene, IA](https://openairdocs.org/faa-place/IA/Greene), built 1963, S/N 409
- [N74081](https://openairdocs.org/aircraft/N74081): [Kehoe Keith J](https://openairdocs.org/faa-owner/KEHOE%20KEITH%20J), [Marion, TX](https://openairdocs.org/faa-place/TX/Marion), S/N 216
- [N74120](https://openairdocs.org/aircraft/N74120): [Slevin Mary Elizebeth](https://openairdocs.org/faa-owner/SLEVIN%20MARY%20ELIZEBETH), [Altamont, NY](https://openairdocs.org/faa-place/NY/Altamont), built 1949, S/N WH5005
- [N74124](https://openairdocs.org/aircraft/N74124): [Bowles Alan B](https://openairdocs.org/faa-owner/BOWLES%20ALAN%20B), [Georgetown, TX](https://openairdocs.org/faa-place/TX/Georgetown), built 1963, S/N WH-5009
- [N74822](https://openairdocs.org/aircraft/N74822): [Nockair Inc](https://openairdocs.org/faa-owner/NOCKAIR%20INC), [Longboat Key, FL](https://openairdocs.org/faa-place/FL/Longboat%20Key), built 1964, S/N 456
- [N74823](https://openairdocs.org/aircraft/N74823): [Tobler Hans P](https://openairdocs.org/faa-owner/TOBLER%20HANS%20P), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1953, S/N 270
- [N74898](https://openairdocs.org/aircraft/N74898): [James David R](https://openairdocs.org/faa-owner/JAMES%20DAVID%20R), [Wayne, MI](https://openairdocs.org/faa-place/MI/Wayne), S/N AIAT-68
- [N755E](https://openairdocs.org/aircraft/N755E): [Lavanture Richard A](https://openairdocs.org/faa-owner/LAVANTURE%20RICHARD%20A), [Bristol, IN](https://openairdocs.org/faa-place/IN/Bristol), built 1951, S/N 312
- [N7802E](https://openairdocs.org/aircraft/N7802E): [Continental Helicopters Inc](https://openairdocs.org/faa-owner/CONTINENTAL%20HELICOPTERS%20INC), [Mason, TX](https://openairdocs.org/faa-place/TX/Mason), S/N 473
- [N78900](https://openairdocs.org/aircraft/N78900): [Master Designs LLC](https://openairdocs.org/faa-owner/MASTER%20DESIGNS%20LLC), [Gilbert, AZ](https://openairdocs.org/faa-place/AZ/Gilbert), built 1952, S/N 480
- [N8117](https://openairdocs.org/aircraft/N8117): [Henry Mark A](https://openairdocs.org/faa-owner/HENRY%20MARK%20A), [Dickinson, TX](https://openairdocs.org/faa-place/TX/Dickinson), built 1967, S/N K732
- [N8645G](https://openairdocs.org/aircraft/N8645G): [Tobler Hans P](https://openairdocs.org/faa-owner/TOBLER%20HANS%20P), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1953, S/N 822
- [N8975](https://openairdocs.org/aircraft/N8975): [Gauntlett Robert Michael](https://openairdocs.org/faa-owner/GAUNTLETT%20ROBERT%20MICHAEL), [Yukon, OK](https://openairdocs.org/faa-place/OK/Yukon), S/N 607
- [N903B](https://openairdocs.org/aircraft/N903B): [Costa James J](https://openairdocs.org/faa-owner/COSTA%20JAMES%20J), [Tulare, CA](https://openairdocs.org/faa-place/CA/Tulare), built 1954, S/N 847
- [N908B](https://openairdocs.org/aircraft/N908B): [Plevyak Malcolm S](https://openairdocs.org/faa-owner/PLEVYAK%20MALCOLM%20S), [Berwick, PA](https://openairdocs.org/faa-place/PA/Berwick), built 1952, S/N 479
- [N9115R](https://openairdocs.org/aircraft/N9115R): [Olson Robert L](https://openairdocs.org/faa-owner/OLSON%20ROBERT%20L), [Yuba City, CA](https://openairdocs.org/faa-place/CA/Yuba%20City), built 1948, S/N 93
- [N9158R](https://openairdocs.org/aircraft/N9158R): [Haley Lee](https://openairdocs.org/faa-owner/HALEY%20LEE), [Ahwahnee, CA](https://openairdocs.org/faa-place/CA/Ahwahnee), built 1960, S/N 455
- [N917B](https://openairdocs.org/aircraft/N917B): [Quatacker Matt](https://openairdocs.org/faa-owner/QUATACKER%20MATT), [Porterville, CA](https://openairdocs.org/faa-place/CA/Porterville), built 1952, S/N 606
- [N929B](https://openairdocs.org/aircraft/N929B): [Valiant Air Command Inc](https://openairdocs.org/faa-owner/VALIANT%20AIR%20COMMAND%20INC), [Titusville, FL](https://openairdocs.org/faa-place/FL/Titusville), S/N 647
- [N93067](https://openairdocs.org/aircraft/N93067): [Milam Inc](https://openairdocs.org/faa-owner/MILAM%20INC), [Trussville, AL](https://openairdocs.org/faa-place/AL/Trussville), built 1965, S/N 5501
- [N93175](https://openairdocs.org/aircraft/N93175): [Gottschalk Brian D](https://openairdocs.org/faa-owner/GOTTSCHALK%20BRIAN%20D), [Moscow, ID](https://openairdocs.org/faa-place/ID/Moscow), S/N 1000
- [N9421H](https://openairdocs.org/aircraft/N9421H): [Elliott Miles DBA](https://openairdocs.org/faa-owner/ELLIOTT%20MILES%20DBA), [Porterville, CA](https://openairdocs.org/faa-place/CA/Porterville), built 1950, S/N 178
- [N9567C](https://openairdocs.org/aircraft/N9567C): [Walker John D](https://openairdocs.org/faa-owner/WALKER%20JOHN%20D), [Neosho, MO](https://openairdocs.org/faa-place/MO/Neosho), built 1950, S/N 212

## STCs approved for it (65, first 50)

- [STC SA00068SE](https://openairdocs.org/stc/SA00068SE): Installation of fuel flow/pressure instruments. (W/TSIO-360-MB1). Electronics International Inc.
- [STC SA00680SE (2 OF 6](https://openairdocs.org/stc/SA00680SE%20(2%20OF%206): Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer.. Electronics International
- [STC SA01258SE](https://openairdocs.org/stc/SA01258SE): Installation of the Automatic Flagman Dispenser Models in accordance with Automatic Flagman Master Drawing Lists specified in attached AML, or later FAA approved revision.This STC supercedes several existing STC s as listed in the notes on the attached AML.. R-S Sales Inc.
- [STC SA02033AT](https://openairdocs.org/stc/SA02033AT): Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line.. M-20 Oil Separators LLC
- [STC SA02268CH](https://openairdocs.org/stc/SA02268CH): Installation of Airwolf Filter Corp. Air Oil Separator. Airwolf Filter Corporation
- [STC SA02520AT](https://openairdocs.org/stc/SA02520AT): Installation of M-20 Oil Separator, model 600-WP.. M-20 Oil Separators LLC
- [STC SA1351WE](https://openairdocs.org/stc/SA1351WE): Replace existing fabric on wings, fuselage, empennage, and/or control surfaces, with Ceconite101 material. (262A Series -12). Ceconite Inc
- [STC SA1626NM PAGE 1](https://openairdocs.org/stc/SA1626NM%20PAGE%201): Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series). Electronics International
- [STC SA2190NM PAGE 1](https://openairdocs.org/stc/SA2190NM%20PAGE%201): Installation of electronics International Digital Volt/Amp Gauges and Accessories.. Electronics International
- [STC SA2350NM PAGE 1](https://openairdocs.org/stc/SA2350NM%20PAGE%201): Installation of Electronics International Inc digital carburetor/outside air temperature gauges. Electronics International
- [STC SA2687NM](https://openairdocs.org/stc/SA2687NM): Installation of Truboplus/ Electronics Int'l gauges and switches.. Aero Manufacturing Inc.
- [STC SA2693NM](https://openairdocs.org/stc/SA2693NM): Installation of Electronics International digital volt/amp gauges and accessories.. Electronics International Inc.
- [STC SA2844CE (1 OF 2)](https://openairdocs.org/stc/SA2844CE%20(1%20OF%202)): Installation of a plastic cap enclosure over the anti-collision strobe light system.. Air Transport Inc
- [STC SA3862NM PAGE 1](https://openairdocs.org/stc/SA3862NM%20PAGE%201): Installation of Electronics International Primary TIT/EGT/CHT instruments, remote switches and associated accessories.. Electronics International
- [STC SA4172NM](https://openairdocs.org/stc/SA4172NM): Installation of Aviation Development oil filter.. Aviation Development Corporation
- [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer.. Electronics International
- [STC SA4503NM](https://openairdocs.org/stc/SA4503NM): Remove original cloth covering and install Ceconite covering. Ceconite Division of Poly-Fiber Inc.
- [STC SA489EA](https://openairdocs.org/stc/SA489EA): Installation of ARP Inc. carburetor ice detection system. Aircraft & Rotorcraft Products (ARP) Inc
- [STC SA5581SW](https://openairdocs.org/stc/SA5581SW): Installation of ALCOR true-flow/ totalizer system. Alcor LLC
- [STC SA593CH](https://openairdocs.org/stc/SA593CH): Install Champion SlickSTART magneto booster system.. Champion Aerospace LLC
- [STC SA615EA](https://openairdocs.org/stc/SA615EA): Installation of a Whelen Anti-Collision Strobe Light System as replacement for originally installed anti-collision lights.. Whelen Aerospace Technologies
- [STC SA800EA](https://openairdocs.org/stc/SA800EA): Installation of Whelen Anti-Collision, Position, or Anti-Collision/Position  Light System, and applicable associated power supplies. Whelen Aerospace Technologies
- [STC SH1007SW](https://openairdocs.org/stc/SH1007SW): Modify tail rotor pitch change mechanism to add duplex bearing, (P/N 47-641-131-1) in place of single row bearing.  Approved for Bell models 47D1, 47G, and 47G-2 with 47-640-044 tail rotor gear box assembly.. Texas Helicopter Co. Inc
- [STC SH102WE](https://openairdocs.org/stc/SH102WE): Installation of automatic flagman model 5.. R-S Sales Inc.
- [STC SH1152NW](https://openairdocs.org/stc/SH1152NW): Installation of the Automatic Flagman Model 135 Control Stick Grip. Air Products & Parts LLC
- [STC SH13WE](https://openairdocs.org/stc/SH13WE): Conversion of Bell Model 47D1 to(1) Model 47G-2 (2) Model 47G. Scott's Bell 47 Inc
- [STC SH169WE](https://openairdocs.org/stc/SH169WE): Installation of exhaust muffler assembly.. Lear Avia Corporation
- [STC SH200WE](https://openairdocs.org/stc/SH200WE): Installation of stirrup assemblies to directional control pedals for operation by handicapped pilot.. Dallwig Barry C
- [STC SH213WE](https://openairdocs.org/stc/SH213WE): Installation of exhaust muffler assembly.. Scott's Bell 47 Inc
- [STC SH214NW](https://openairdocs.org/stc/SH214NW): Installation of Simplex Model 4100 Aerial Dust System.. Simplex Manufacturing Co
- [STC SH2772SW](https://openairdocs.org/stc/SH2772SW): Revise mast controls and remove stabilizer bar and install control system.. Scott's-Bell 47 Inc
- [STC SH279SW](https://openairdocs.org/stc/SH279SW): Modification of dual control cyclic stick into quick removable stick similar to Bell 47A stick by cutting off the stick and making an insert of 4130 steel tube to fit inside. Scott's Bell 47 Inc
- [STC SH283SW](https://openairdocs.org/stc/SH283SW): Change battery location from dual positions in aft and forward locations to one fixed position under the oil cooler on center frame bottom tubes and installation of ballast. Scott's Bell 47 Inc
- [STC SH2840SW](https://openairdocs.org/stc/SH2840SW): Chemical spray boom.. Warnell Company
- [STC SH2945NM](https://openairdocs.org/stc/SH2945NM): Addition of a twist grip on the cyclic pitch stick to provide hand operated yaw control. Narad James L
- [STC SH3319NM](https://openairdocs.org/stc/SH3319NM): Installation of Precise Flight Pulselite Control Unit in the
Landing /Taxi Recognition Visual Control Light system,. Precise Flight Inc
- [STC SH382SW](https://openairdocs.org/stc/SH382SW): Eligible only on Bell 47 series with open tail booms.  Installation of sign per Kitz Kopter's Drawing KK-101 dated 10/14/64.. Scott's Bell 47 Inc
- [STC SH397SW](https://openairdocs.org/stc/SH397SW): Installation of hydraulic boost kit.. Scott's Bell 47 Inc
- [STC SH4173NM](https://openairdocs.org/stc/SH4173NM): Installation of Simplex Model 7600 modular electrical system. (US ARMY OH-13E M74A). Simplex Manufacturing Company
- [STC SH506GL](https://openairdocs.org/stc/SH506GL): Installation of modified tail rotor gearbox using original installation hardware and components.. Helicopters, Inc
- [STC SH529SW](https://openairdocs.org/stc/SH529SW): Installation of Franklin 6V-350-A engine.. Scott's Bell 47 Inc
- [STC SH588SW](https://openairdocs.org/stc/SH588SW): Conversion to single-place cabin, without doors, revised cyclic and collective and throttle controls, rerouted electrical wiring.. Scott's Bell 47 Inc
- [STC SH5WE](https://openairdocs.org/stc/SH5WE): Installation of Cargo Sling and Hook. Helicopter Mechanics Svc
- [STC SH611SW](https://openairdocs.org/stc/SH611SW): Left and right door with tinted glass and sliding window.. Scott's Bell 47 Inc
- [STC SH752SW](https://openairdocs.org/stc/SH752SW): Centerframe modification or replacement and installation of Lycoming VO-435 engine in lieu of Franklin installation and optional lateral control system.. Scott's Bell 47 Inc
- [STC SH77WE](https://openairdocs.org/stc/SH77WE): Installation of Simplex Bi-Fluid Spray System.. Simplex Manufacturing Co
- [STC SH828NW](https://openairdocs.org/stc/SH828NW): Installation of weighing system. (AS MODIFIED BY STC SH657NW). Onboard Weighing Systems
- [STC SH888SW](https://openairdocs.org/stc/SH888SW): Use of spacer in lieu of snap ring on tail rotor drive quill.. Scott's Bell 47 Inc
- [STC SH95WE](https://openairdocs.org/stc/SH95WE): Installation of low profile spray system.. Simplex Manufacturing Co
- [STC SH972SW](https://openairdocs.org/stc/SH972SW): Installation of copilot's rudder pedals.. Scott's Bell 47 Inc

All 65: https://openairdocs.org/model/bell-47d1/stcs.md

## NTSB investigations (226, newest 50)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB ERA22LA039](https://openairdocs.org/ntsb/ERA22LA039), Oct 31, 2021: Bell 47D1 (N132BR), Zelienople, PA, substantial damage. Probable cause: A total loss of engine power for reasons that could not be determined.
- [NTSB WPR21LA077](https://openairdocs.org/ntsb/WPR21LA077), Jan 1, 2021: Bell 47D (N74823), Marana, AZ, substantial damage. Probable cause: The pilot's failure to maintain helicopter control, which resulted in a hard landing.
- [NTSB CEN17LA264](https://openairdocs.org/ntsb/CEN17LA264), Jul 6, 2017: Bell 47D1 (N153B), Big Lake, MN, substantial damage. Probable cause: The failure of the metal core assembly within a wooden main rotor blade due to undetected corrosion and fatigue, which caused the wooden blade to separate from the rotor mast.
- [NTSB ERA16LA167](https://openairdocs.org/ntsb/ERA16LA167), Apr 20, 2016: Bell 47D1 (N202CH), Myerstown, PA, substantial damage. Probable cause: A total loss of engine power for reasons that could not be determined because examination of the engine revealed no mechanical anomalies that would have precluded normal operation.
- [NTSB GAA15CA221](https://openairdocs.org/ntsb/GAA15CA221), Aug 11, 2015: Bell 47D1 (N74823), Clanton, AL, substantial damage. Probable cause: The student pilot's abrupt cyclic and collective inputs during the approach to land which resulted in abnormal runway contact and a subsequent tail boom strike by the main rotor blades.
- [NTSB ERA14LA099](https://openairdocs.org/ntsb/ERA14LA099), Jan 21, 2014: Bell 47D1 (N93067), Pell City, AL, substantial damage. Probable cause: The pilot’s use of an improper clutch engagement procedure, which resulted in clutch glazing, slippage, and, ultimately, the in-flight disengagement of the clutch and a loss of rotor rpm.…
- [NTSB CEN13LA396](https://openairdocs.org/ntsb/CEN13LA396), Jun 28, 2013: Bell 47D1 (N78900), Lake Ozark, MO, substantial damage. Probable cause: The improper rebuild and maintenance of the helicopter and inadequate subsequent inspections, which resulted in undetected fuel contamination and a subsequent total loss of engine power during cruise…
- [NTSB WPR12LA029](https://openairdocs.org/ntsb/WPR12LA029), Nov 8, 2011: Bell 47D1 (N4251A), San Diego, CA, substantial damage. Probable cause: The flight instructor's inadequate supervision of the student pilot during a simulated autorotation and the pilots’ failure to use carburetor heat while operating at reduced engine power while in…
- [NTSB WPR11LA469](https://openairdocs.org/ntsb/WPR11LA469), Sep 27, 2011: Bell 47D1 (N9158R), Ahwahnee, CA, substantial damage. Probable cause: The pilot’s failure to maintain adequate main rotor rpm during the landing approach, which resulted in a loss of control.
- [NTSB ERA10CA001](https://openairdocs.org/ntsb/ERA10CA001), Oct 2, 2009: Bell 47D1 (N74004), Dorrance, PA, substantial damage. Probable cause: A total loss of engine power due to fuel exhaustion for undetermined reasons.
- [NTSB CHI08LA151](https://openairdocs.org/ntsb/CHI08LA151), Jun 1, 2008: Bell 47D1 (N74898), Carrollton, OH, substantial damage. Probable cause: The airframe vibration for an undetermined reason.
- [NTSB LAX06LA030](https://openairdocs.org/ntsb/LAX06LA030), Nov 10, 2005: Bell 47D1 (N16356), Rancho Murieta, CA, substantial damage. Probable cause: a separation of the tail rotor assembly due to the reverse bending fatigue fracture of a tail rotor pitch change link bolt, resulting in a loss of control of the helicopter, and a hard landing during…
- [NTSB LAX05LA022](https://openairdocs.org/ntsb/LAX05LA022), Oct 31, 2004: Bell 47D1 (N903B), San Martin, CA, substantial damage. Probable cause: A loss of power for undetermined reasons.
- [NTSB NYC03LA069](https://openairdocs.org/ntsb/NYC03LA069), Mar 23, 2003: Bell 47D (N74120), Princetown, NY, substantial damage. Probable cause: The student's failure to maintain control while executing a takeoff to a hover, and the flight instructor's delayed remedial action. A factor in the accident was the muddy ground.
- [NTSB MIA02LA154](https://openairdocs.org/ntsb/MIA02LA154), Aug 20, 2002: Bell 47-D1 (N4702S), Union, SC, substantial damage. Probable cause: the pilot's failure to maintain obstacle clearance.
- [NTSB FTW02LA044](https://openairdocs.org/ntsb/FTW02LA044), Dec 1, 2001: Bell 47G (N5226), Ardmore, OK, substantial damage. Probable cause: the flight instructor's selection of an unsuitable area for practicing a full touchdown autorotation, which resulted in a nose over. A contributing factor was the soft ground.
- [NTSB MIA98LA254](https://openairdocs.org/ntsb/MIA98LA254), Sep 29, 1998: Bell 47-D1 (N755E), Oxford, MS, substantial damage. Probable cause: The pilot's failure to maintain directional control due to vibration from the main rotor blade for undetermined reasons. A related finding was the improper repair of a crack in the laminant of the…
- [NTSB MIA98LA230](https://openairdocs.org/ntsb/MIA98LA230), Aug 29, 1998: Bell 47D1 (N4702S), Dawson, GA, substantial damage. Probable cause: The pilot's selection of unsuitable terrain for landing resulting in debris being blown up during landing resulting in damage to the tail rotor and loss of control.
- [NTSB FTW98LA144](https://openairdocs.org/ntsb/FTW98LA144), Mar 11, 1998: Bell 47D1 (N13012), Jeanerette, LA, substantial damage. Probable cause: The in-flight disconnect of the rotating scissors due to the separation of its hinge bolt.
- [NTSB MIA98LA051](https://openairdocs.org/ntsb/MIA98LA051), Jan 3, 1998: Bell 47D1 (N59326), Bunnell, FL, substantial damage. Probable cause: the student pilot's improper planning/decision, which resulted in fuel exhaustion, loss of engine power, and a forced landing.
- [NTSB ATL97LA121](https://openairdocs.org/ntsb/ATL97LA121), Aug 11, 1997: Bell 47-D1 (N908B), Holcomb, MS, substantial damage. Probable cause: The failure of the pilot to adequately see and avoid all obstructions while doing aerial application work.
- [NTSB FTW96LA192](https://openairdocs.org/ntsb/FTW96LA192), Apr 26, 1996: Bell 47D1 (N5226), Ardmore, OK, substantial damage. Probable cause: the student's inadvertent dynamic rollover, and inadequate supervision by the flight instructor.
- [NTSB MIA96LA028](https://openairdocs.org/ntsb/MIA96LA028), Nov 15, 1995: Bell 47-D1 (N4702S), Jasper, FL, substantial damage. Probable cause: IMPROPER MAINTENANCE AND INSPECTION OF THE CARBURETOR SYSTEM BY MAINTENANCE PERSONNEL DURING THE LAST ANNUAL INSPECTION WHICH RESULTED IN A PARTIAL LOSS OF ENGINE POWER DUE TO CARBURETOR ICE.…
- [NTSB LAX96FA045](https://openairdocs.org/ntsb/LAX96FA045), Nov 12, 1995: Bell 47D1 (N78900), Shafter, CA, destroyed, 2 fatal. Probable cause: the pilot misjudged the altitude and ground clearance while performing an unwarranted low altitude flight maneuver.
- [NTSB BFO95LA084](https://openairdocs.org/ntsb/BFO95LA084), Aug 22, 1995: Bell 47D1 (N9115R), Sidney, OH, substantial damage. Probable cause: the student pilot's abrupt touchdown while landing in a field. Related factors are the student pilot's failure to attain the proper descent rate during the approach to landing, and the flight…
- [NTSB FTW95FA181](https://openairdocs.org/ntsb/FTW95FA181), Apr 25, 1995: Bell 47D1 (N2202C), Ardmore, OK, destroyed, 2 fatal. Probable cause: INFLIGHT COLLISION WITH A POWER TRANSMISSION ARRAY STATIC LINE WHEN THE FLIGHT INSTRUCTOR AND DUAL (PRIVATE PILOT) STUDENT FAILED TO MAINTAIN ADEQUATE VISUAL LOOKOUT.
- [NTSB ATL94LA172](https://openairdocs.org/ntsb/ATL94LA172), Sep 13, 1994: Bell 47D1 Wasp (N908B), Hazel Green, AL, substantial damage. Probable cause: UNDETERMINED.
- [NTSB LAX94LA235](https://openairdocs.org/ntsb/LAX94LA235), Jun 2, 1994: Bell 47D-1 (N14412), Chino, CA, substantial damage. Probable cause: loss of aircraft control due to the pilot's failure to correctly configure the hydraulic system prior to takeoff.
- [NTSB MIA94FA125](https://openairdocs.org/ntsb/MIA94FA125), Apr 22, 1994: Bell 47D1 (N9660), Marathon, FL, destroyed, 2 fatal. Probable cause: SEPARATION OF THE TAIL ROTOR GEARBOX AND TAIL ROTOR BLADES FOR AN UNDETERMINED REASON. FACTORS RELATED TO THE ACCIDENT WERE: FAILURE OF MAINTENANCE PERSONNEL TO FOLLOW THE PROPER MAINTENANCE…
- [NTSB LAX93LA010](https://openairdocs.org/ntsb/LAX93LA010), Oct 11, 1992: Bell 47-D1 (N162B), El Monte, CA, substantial damage. Probable cause: THE PILOT'S FAILURE TO MAINTAIN THE ROTOR RPM.
- [NTSB ATL92LA131](https://openairdocs.org/ntsb/ATL92LA131), Jun 25, 1992: Bell 47D1 (N68632), Centre, AL, substantial damage. Probable cause: THE PILOT'S INADEQUATE VISUAL LOOKOUT, RESULTING IN A COLLISION WITH A WIRE.
- [NTSB MIA92LA102](https://openairdocs.org/ntsb/MIA92LA102), Apr 2, 1992: Bell 47-D-1 (N322A), Fayette, MS, substantial damage. Probable cause: THE PILOT IN COMMANDS FAILURE TO INSURE THE PROPER FUEL QUANTITY FOR THE FLIGHT WAS PLACED ON THE AIRCRAFT AND HIS FAILURE TO MONITOR FUEL QUANTITY DURING FLIGHT RESULTING IN FUEL EXHAUSTION.
- [NTSB MIA92LA069](https://openairdocs.org/ntsb/MIA92LA069), Jan 27, 1992: Bell 47D1 (N93067), Cross City, FL, substantial damage. Probable cause: PARTIAL LOSS OF ENGINE POWER DUE TO UNDETERMINED REASONS AND UNSUITABLE TERRAIN ENCOUNTERED DURING THE AUTOROTATIVE LANDING.
- [NTSB ATL92LA017](https://openairdocs.org/ntsb/ATL92LA017), Oct 28, 1991: Bell 47D-1 (N925V), Rome, GA, substantial damage. Probable cause: THE FAILURE OF A TAIL ROTOR BLADE FOR UNDETERMINED REASONS.
- [NTSB FTW91LA126](https://openairdocs.org/ntsb/FTW91LA126), Jul 24, 1991: Bell 47D-1 (N3575), Provencal, LA, substantial damage. Probable cause: FUEL LEAKAGE FROM THE FUEL DRAIN VALVE. A FACTOR WAS THE INACCESSIBILITY OF SUITABLE TERRAIN FOR FORED LANDING.
- [NTSB FTW91LA091](https://openairdocs.org/ntsb/FTW91LA091), Jun 5, 1991: Bell 47D-1 (N8117), Peach Orchard, AR, substantial damage. Probable cause: THE PILOT'S FAILURE TO MAINTAIN ADEQUATE MAIN ROTOR RPM RESULTING IN DETERIORATED HELICOPTER PERFORMANCE. A FACTOR WAS THE TAILWIND CONDITION.
- [NTSB FTW91DRD05](https://openairdocs.org/ntsb/FTW91DRD05), May 26, 1991: Bell 47-D1 (N339MC), Sun, LA, substantial damage. Probable cause: THE TOTAL LOSS OF POWER FOR UNDETERMINED REASONS AND THE FAILURE OF THE PILOT TO MAINTAIN ROTOR RPM. A FACTOR WAS THE LACK OF SUITABLE TERRAIN.
- [NTSB CHI90DEC04](https://openairdocs.org/ntsb/CHI90DEC04), Aug 14, 1990: Bell 47 D-1 (N3656F), Stockbridge, MI, destroyed. Probable cause: THE RESTRICTED VISUAL LOOKOUT WHICH RESULTED FROM THE CANOPY FOGGING UP.
- [NTSB MKC90LA144](https://openairdocs.org/ntsb/MKC90LA144), Jul 12, 1990: Bell 47D-1 (N8117), Fair Oaks, AR, substantial damage. Probable cause: TAIL ROTOR CABLE DISENGAGEMENT DUE TO INADEQUATE MAINTENANCE.
- [NTSB NYC90DGM02](https://openairdocs.org/ntsb/NYC90DGM02), Jun 22, 1990: Bell 47D1 (N310A), Meadville, PA, destroyed, 1 fatal. Probable cause: THE PILOT'S FAILURE TO SEE AND AVOID THE POWER LINES.
- [NTSB BFO90LA042](https://openairdocs.org/ntsb/BFO90LA042), May 13, 1990: Bell 47D (N4229A), Baltimore, MD, substantial damage. Probable cause: THE PILOT APPLIED EXCESSIVE CYCLIC CONTROL, CAUSING THE MAIN ROTOR TO FLEX AND SEVERE THE TAIL CONE.
- [NTSB ATL90DLQ01](https://openairdocs.org/ntsb/ATL90DLQ01), Apr 24, 1990: Bell 47D1 (N2134), Hickman, KY, substantial damage. Probable cause: IMPROPER IN-FLIGHT PLANNING/DECISION BY THE PILOT. THE RESULTANT TAILWIND WAS A RELATED FACTOR.
- [NTSB MIA90LA096](https://openairdocs.org/ntsb/MIA90LA096), Mar 25, 1990: Bell 47D1 (N10326), Rockledge, FL, substantial damage. Probable cause: FAILURE OF A CONNECTING ROD.
- [NTSB FTW90LA041](https://openairdocs.org/ntsb/FTW90LA041), Dec 4, 1989: Bell 47D1 (N2202C), Ardmore, OK, substantial damage. Probable cause: PILOT'S INADEQUATE COMPENSATION FOR EXISTING WIND CONDITIONS. CONTRIBUTING TO THE ACCIDENT WERE THE GUSTY TAIL WINDS.
- [NTSB MIA90LA023](https://openairdocs.org/ntsb/MIA90LA023), Nov 2, 1989: Bell 47D1 (N93067), Loxahatchee, FL, substantial damage. Probable cause: FAILURE OF THE PILOT TO MAINTAIN ROTOR RPM AFTER PULLING UP FROM A SWATH RUN. A RELATED FACTOR WAS THE PRESENCE OF TREES.
- [NTSB FTW89LA104](https://openairdocs.org/ntsb/FTW89LA104), May 26, 1989: Bell 47D-1 (N2202C), Ardmore, OK, substantial damage. Probable cause: THE FLIGHT INSTRUCTOR FAILED TO RECOGNIZE THAT THE AIRCRAFT WAS DEVELOPING A DANGEROUS SINK RATE DURING THE AUTOROTATION AND TAKE CORRECTIVE ACTION BY EXECUTING A POWER RECOVERY. CONTRIBUTING TO THE…
- [NTSB ATL89DLT03](https://openairdocs.org/ntsb/ATL89DLT03), May 12, 1989: Bell 47 (N908B), Shelbyville, TN, substantial damage. Probable cause: FAILURE IN THE ROTOR DRIVE SYSTEM FOR UNKNOWN REASONS. CONTRIBUTING TO THE ACCIDENT WAS THE PILOT'S INABILITY TO PERFORM AN AUTOROTATION.
- [NTSB MIA89LA133](https://openairdocs.org/ntsb/MIA89LA133), Apr 17, 1989: Bell 47D1 (N342L), Miami, FL, substantial damage. Probable cause: THE UNQUALIFIED PERSONS FAILURE TO MAINTAIN CLEARANCE FROM THE FENCE. PRESSURE INDUCED BY OTHERS, LACK OF EXPERIENCE, AND OVER CONFIDENCE IN PERSONAL ABILITY ARE CONTRIBUTING FACTORS TO THIS ACCIDENT.
- [NTSB NYC89DNE01](https://openairdocs.org/ntsb/NYC89DNE01), Dec 2, 1988: Bell 47D1 (N163B), Russell, MA, destroyed, 1 fatal. Probable cause: A PILOT INDUCED LOW ROTOR RPM CONDITION, FOLLOWED BY BLADE FLAPPING AS THE MAIN ROTOR BLADE CONTACTED THE TAIL OF THE HELICOPTER.
- [NTSB FTW89DPA03](https://openairdocs.org/ntsb/FTW89DPA03), Dec 2, 1988: Bell 47-D1 (N74124), Allen, TX, substantial damage. Probable cause: UNQUALIFIED PILOT'S POOR JUDGEMENT IN LEVELING THE HELICOPTER DURING THE FLARE AND CONTRIBUTING TO THIS WAS HIS LACK OF TOTAL EXPERIENCE IN THIS TYPE AIRCRAFT.

All 226: https://openairdocs.org/model/bell-47d1/ntsb.md

## FAA accident and incident reports (160, newest 50)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20211031019149A](https://openairdocs.org/incident/20211031019149A), Oct 31, 2021: Bell 47D1 (N132BR), Zelienople, PA, Substantial damage. Aircraft sustained engine failure on departure from kpjc. Pilot performed autorotation due to engine failure. Rt skid gear collapsed on landing due to landing…
- [Accident 20210101001599A](https://openairdocs.org/incident/20210101001599A), Jan 1, 2021: Bell 47D1 (N74823), Marana, AZ, Substantial damage. While hover taxiing back to ramp on taxiway, a CE-182 entered the same taxiway approaching the helicopter. PIC stated that no radio contact could be made with…
- [Accident 20170706010589A](https://openairdocs.org/incident/20170706010589A), Jul 6, 2017: Bell 47D1 (N153B), Big Lake, MN, Substantial damage. The pilot was performing agriculture spray operations and had just completed a refill operation of pestidices. After increasing engine RPM to 3,100 RPM and…
- [Incident 20160521005389I](https://openairdocs.org/incident/20160521005389I), May 21, 2016: Bell 47D1 (N3575), Navarre, FL, Minor damage. While conducting a sightseeing/tour flight with two passengers over Navarre beach, Florida, the pilot stated as he started his approach to the Navarre beach…
- [Accident 20160420006219A](https://openairdocs.org/incident/20160420006219A), Apr 20, 2016: Bell 47D1 (N202CH), Lancaster, PA, Substantial damage. The CFI was demonstrating an auto rotation while conducting a flight review. The maneuver was initiated at approximately 1200 feet above ground level (AGL).…
- [Accident 20150811016529A](https://openairdocs.org/incident/20150811016529A), Aug 11, 2015: Bell 47D1 (N74823), Clanton, AL, Substantial damage. 08/11/2015 1500 Local time winds were observed as 340 at 10 KTS. Student pilot was manipulating the controls of N74823 a Bell 47D1 on final terminating with a…
- [Accident 20140121001109A](https://openairdocs.org/incident/20140121001109A), Jan 21, 2014: Bell 47D1 (N93067), Pell City, AL, Substantial damage. Helicopter was descending, according to the pilot's statement, and at approximately 25' to 35' AGL he heard a loud snap/pop along with an immediate…
- [Accident 20130628013159A](https://openairdocs.org/incident/20130628013159A), Jun 28, 2013: Bell 47D1 (N78900), Lake Ozark, MO, Substantial damage. Pilot stated that during cruise flight at 1500 MSL the engine sputtered. In response he rolled the throttle on and the engine came back on, then seconds later…
- [Accident 20111108026759A](https://openairdocs.org/incident/20111108026759A), Nov 8, 2011: Bell 47D1 (N4251A), San Diego, CA, Substantial damage. The owner of the aircraft was receiving rotorcraft flight instruction when the aircraft impacted the ground during an autorotation landing. The student stated…
- [Accident 20110927022599A](https://openairdocs.org/incident/20110927022599A), Sep 27, 2011: Bell 47D1 (N9158R), Ahwahnee, CA, Substantial damage. On September 27, 2011, N9158R a Bell 47 helicopter, with the owner and a certificated mechanic on board conducting a maintenance flight were involved in an…
- [Incident 20091219052779I](https://openairdocs.org/incident/20091219052779I), Dec 19, 2009: Bell 47D1 (N8975), Oakdale, CA, Minor damage. A Bell 47 helicopter was involved with a hard landing during a FAA flight test with a designated pilot examiner on board. During the execution of a steep…
- [Accident 20091002049919A](https://openairdocs.org/incident/20091002049919A), Oct 2, 2009: Bell 47D1 (N74004), Hazleton, PA, Minor damage. Pilot was flying approximately 1500 ft AGL when the engine quit. He autorotated into an old portion of a quarry, landing on some piles of stone and dirt. The…
- [Accident 20080601840789A](https://openairdocs.org/incident/20080601840789A), Jun 1, 2008: Bell 47D1 (N74898), Amsterdam, OH, Substantial damage. (-23) 5 Min. After TSO, substantial cyclic shakes, reduces control and landed in the farmer's field.
- [Accident 20051110028389A](https://openairdocs.org/incident/20051110028389A), Nov 10, 2005: Bell 47D1 (N16356), Rancho Murieta, CA, Destroyed. (-23) While on a training flight the student pilot experienced a vibration in the anti-torque pedals. This changed to an oscillation (helicopter moving from…
- [Incident 20051104028539I](https://openairdocs.org/incident/20051104028539I), Nov 4, 2005: Bell 47D1 (N16356), Rancho Murieta, CA. (-23) On 11/04/2005 the pilot [privacy data omitted] made an emergency landing at the Rancho Murieta Airport due to a broken tail rotor control cable. The…
- [Incident 20050413006029I](https://openairdocs.org/incident/20050413006029I), Apr 13, 2005: Bell 47D1 (N4229A), New Cumberland, PA. (-23) On April 13, 2005, the pilot [privacy data omitted] operated Bell helicopter N4229A from capital city airport until the engine failed due to fuel…
- [Accident 20041031028379A](https://openairdocs.org/incident/20041031028379A), Oct 31, 2004: Bell 47D1 (N903B), San Martin, CA, Substantial damage. (-23) At approximately 0915 hours on October 31, 2004, CFI randy sharp and owner/student pilot robert seuss departed rhv (san jose) for 3O7 (hollister) with…
- [Incident 20030302002299I](https://openairdocs.org/incident/20030302002299I), Mar 2, 2003: Bell 47D1 (N9421H), Torrance, CA, Minor damage. (-23) During a normal approach to a hover, the pilot made uncontrolled contact with the ground (grassy area) short of the helipad, causing damage to the right…
- [Accident 20020820027009A](https://openairdocs.org/incident/20020820027009A), Aug 20, 2002: Bell 47D1 (N4702S), Union, SC, Substantial damage. (-23) Helicopter was in process of landing on portable platform to refuel and reload chemicals, when tail rotor hit trailer next to platform.
- [Accident 20011201034399A](https://openairdocs.org/incident/20011201034399A), Dec 1, 2001: Bell 47G (N5226), Ardmore, OK, Substantial damage. (.19) On December 1, 2001, at 1030 central standard time, a Bell 47D1 helicopter, N5226, was substantially damaged during a practice autorotational landing at…
- [Accident 19980929033749A](https://openairdocs.org/incident/19980929033749A), Sep 29, 1998: Bell 47D1 (N755E), Oxford, MS, Substantial damage. (.19)On September 29, 1998, about 0700 central daylight time, a Bell H-13D, N755E, registered to precision air services, inc, collided with trees during a…
- [Accident 19980829022379A](https://openairdocs.org/incident/19980829022379A), Aug 29, 1998: Bell 47D1 (N4702S), Dawson, GA, Substantial damage. Helicopter was involved in aerial application and was attempting to land on a truck for refueling, debris behind the truck struck the tail rotor. (-23) PIC…
- [Accident 19980311003149A](https://openairdocs.org/incident/19980311003149A), Mar 11, 1998: Bell 47D1 (N13012), Jeanerette, LA, Substantial damage. Heli was practicing approaches when it started to vibrate vertically and laterally, landed hard. Jeanerette, LA (-23) on March 12, 1998, it was reported that…
- [Accident 19980103000069A](https://openairdocs.org/incident/19980103000069A), Jan 3, 1998: Bell 47D1 (N59326), Bunnell, FL, Substantial damage. Engine stopped 300FT AGL. Dropped to ground. Fuel exhaustion. (-23) helicopter sustained substantial damage, after student pilot on unsupervised solo made…
- [Accident 19970811021649A](https://openairdocs.org/incident/19970811021649A), Aug 11, 1997: Bell 47D1 (N908B), Holcomb, MS, Substantial damage. Helicopter was involved in aerial application, hit a telephone line and landed in a field.(.4) the pilot stated the cotton field he was going to spray with…
- [Incident 19960602020389I](https://openairdocs.org/incident/19960602020389I), Jun 2, 1996: Bell 47D1 (N132BR), Bristol, NH, Minor damage. Narrative: engine lost some power after t/o due to push rod breaking through engine casing and damaging engine cooling fan and control servo. Pilot elected to…
- [Accident 19960426008929A](https://openairdocs.org/incident/19960426008929A), Apr 26, 1996: Bell 47D1 (N5226), Ardmore, OK, Substantial damage. Familiarzation flight student landed short in tall grass. Tried takeoff with skid in soft earth. Rolled on side. (-23) during a familiarization flight in the…
- [Accident 19951115041659A](https://openairdocs.org/incident/19951115041659A), Nov 15, 1995: Bell 47D1 (N4702S), Jasper, FL, Substantial damage. Lost partial power landing. Settled into powerline. Fell vertical to ground. Carb heat exterior operated. Not on.
- [Accident 19951112036359A](https://openairdocs.org/incident/19951112036359A), Nov 12, 1995: Bell 47D1 (N78900), Shafter, CA, Destroyed, 2 fatal. Departed to spray water over trees to rinse system. Crashed and burned. Had unauthorized passenger on board.
- [Accident 19950822033149A](https://openairdocs.org/incident/19950822033149A), Aug 22, 1995: Bell 47D1 (N9115R), Sidney, OH, Substantial damage. Hard landing in soybeans. Unable to pull more pitch to flare on practice landing. Chopped tail. Belated pitch use. (-23) a flight instructor and student on an…
- [Accident 19950425008629A](https://openairdocs.org/incident/19950425008629A), Apr 25, 1995: Bell 47D1 (N2202C), Ardmore, OK, Destroyed, 2 fatal. Chief pilot giving pretest flight to student. Tailrotor struck power line. Crashed into trees and a fence.
- [Accident 19940913026889A](https://openairdocs.org/incident/19940913026889A), Sep 13, 1994: Bell 47D1 (N908B), Hazel Green, AL, Substantial damage. Aborted takeoff for unknown condition. Tried slide landing in tall grass skid caught cotton. Broke. Rolled over.
- [Incident 19940817021639I](https://openairdocs.org/incident/19940817021639I), Aug 17, 1994: Bell 47D1 (N339MC), Palm Harbor, FL, Minor damage. Rough engine. Precautionary landed. Struck power line on approach.
- [Accident 19940602013379A](https://openairdocs.org/incident/19940602013379A), Jun 2, 1994: Bell 47D1 (N14412), Chino, CA, Substantial damage. Lifted off pad to hover. Began pilot induced oscillation due heavy cylic force. Forgot to engage hydraulic system.
- [Accident 19940422012699A](https://openairdocs.org/incident/19940422012699A), Apr 22, 1994: Bell 47D1 (N9660), Marathon, FL, Destroyed, 4 fatal. Loud bang. Parts came off tail. Yawed right. Impact on island. Bounced into water. Overtime tail rotor blades failed
- [Incident 19940115004109I](https://openairdocs.org/incident/19940115004109I), Jan 15, 1994: Bell 47D1 (N177B), Clearwater, FL, Minor damage. Narrative: during pleasure flight in the Clearwater area, pilot experienced gradual loss of rotor & engine RPM (no split needle) tried to make it back to…
- [Accident 19921011041499A](https://openairdocs.org/incident/19921011041499A), Oct 11, 1992: Bell 47D1 (N162B), El Monte, CA, Substantial damage. Demonstrating pinnacle landing to passenger made hard impact due low rotor RPM. Rolled over.
- [Incident 19920831038909I](https://openairdocs.org/incident/19920831038909I), Aug 31, 1992: Bell 47D1 (N157B), Natchitoches, LA, Minor damage. Tail rotor drive shaft severed just aft of second aft hanger bearing. Autorotated to ground.
- [Accident 19920625025579A](https://openairdocs.org/incident/19920625025579A), Jun 25, 1992: Bell 47D1 (N68632), Centre, AL, Substantial damage. Struck powerline during a spray run. Pilot failed to note powerline on pre-inspection.
- [Accident 19920402009959A](https://openairdocs.org/incident/19920402009959A), Apr 2, 1992: Bell 47D1 (N322A), Fayette, MS, Substantial damage. Engine quit during spraying operations. Fuel tanks were empty.
- [Accident 19920127001329A](https://openairdocs.org/incident/19920127001329A), Jan 27, 1992: Bell 47D1 (N93067), Cross City, FL, Substantial damage. Rough engine and power loss while fire burning trees. Autorotated into trees. Low fuel may have unported turning.
- [Accident 19911028048259A](https://openairdocs.org/incident/19911028048259A), Oct 28, 1991: Bell 47D1 (N925V), Rome, GA, Substantial damage. Tail rotor gear box separated from helicopter. Auto rotated safely. Tail rotor blade separated tearing off gearbox.
- [Accident 19910724029759A](https://openairdocs.org/incident/19910724029759A), Jul 24, 1991: Bell 47D1 (N3575), Provencal, LA, Substantial damage. Engine quit on aerial fire burn survey. Landed on slope. Rolled over. Departed minimum fuel. Depleted by leaky sump
- [Incident 19910625041919I](https://openairdocs.org/incident/19910625041919I), Jun 25, 1991: Bell 47D1 (N74121), Howe, TX, Substantial damage. Aircraft caught fire while being refueled, in an open field.
- [Accident 19910605020209A](https://openairdocs.org/incident/19910605020209A), Jun 5, 1991: Bell 47D1 (N8117), Peach Orchard, AR, Substantial damage. Practicing aerial application with water made low level rudder turn to downwind and settled with power to impact.
- [Accident 19910526017319A](https://openairdocs.org/incident/19910526017319A), May 26, 1991: Bell 47D1 (N339MC), Sun, LA, Substantial damage. Reported power failure on climbout. Autorotated to hard landing. No engine problems found.
- [Incident 19910330015629I](https://openairdocs.org/incident/19910330015629I), Mar 30, 1991: Bell 47D1 (N4229A), Butler, MD, Minor damage. Engine quit in flight. Entered autoratation and landed in field. Found two studs on NR1 cylinder were broken.
- [Accident 19900814032999A](https://openairdocs.org/incident/19900814032999A), Aug 14, 1990: Bell 47D1 (N3656F), Stockbridge, MI, Substantial damage. Windshield fogged on night flight at low altitude with high humidity. Struck pole and wires crashed and burned.
- [Accident 19900712025479A](https://openairdocs.org/incident/19900712025479A), Jul 12, 1990: Bell 47D1 (N8117), Fairoaks, AR, Substantial damage. Lost pedal response on spray run. Made right turn. Unable stop. Impacted. Tail rotor cable broke. Locked right turn
- [Accident 19900622021819A](https://openairdocs.org/incident/19900622021819A), Jun 22, 1990: Bell 47D1 (N310A), Meadville, PA, Destroyed, 1 fatal. Struck a powerline and crashed while entering field to be sprayed. Had sprayed same field for 20 years.

All 160: https://openairdocs.org/model/bell-47d1/incidents.md

## The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

- [Bell Kitz Kopters 47D1](https://openairdocs.org/model/bell-kitz-kopters-47d1): 1 registered aircraft, registry code 1180844
- [Bell-Allied Helicopter 47D1](https://openairdocs.org/model/bell-allied-helicopter-47d1): 1 registered aircraft, registry code 118084C
- [Agusta Bell 47D-1](https://openairdocs.org/model/agusta-bell-47d-1): 0 registered aircraft, registry code 0264716
- [Bell - K Copter 47D1](https://openairdocs.org/model/bell-k-copter-47d1): 0 registered aircraft, registry code 1180843
- [Bell-Transworld Helicopters 47D1](https://openairdocs.org/model/bell-transworld-helicopters-47d1): 0 registered aircraft, registry code 1180845
- [Bell-Moore 47D1](https://openairdocs.org/model/bell-moore-47d1): 0 registered aircraft, registry code 1180847
- [Bell-Gilbert 47D1](https://openairdocs.org/model/bell-gilbert-47d1): 0 registered aircraft, registry code 118084D
- [Bell-Barnes 47D1](https://openairdocs.org/model/bell-barnes-47d1): 0 registered aircraft, registry code 118084E
- [Bell-Florida Helicopters 47D1](https://openairdocs.org/model/bell-florida-helicopters-47d1): 0 registered aircraft, registry code 118084H
- [Bell-Gulf Coast 47D1](https://openairdocs.org/model/bell-gulf-coast-47d1): 0 registered aircraft, registry code 118084K
- [Bell-Houston 47D1](https://openairdocs.org/model/bell-houston-47d1): 0 registered aircraft, registry code 118084M
- [Bell-Regan 47D1](https://openairdocs.org/model/bell-regan-47d1): 0 registered aircraft, registry code 118084R

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