# NTSB investigations: Franklin 6A4200 series

A list on [Franklin 6A4200 series](https://openairdocs.org/engine/franklin-6a4200-series.md).

Matched to the registry by N-number and event date, newest first.

- [NTSB CEN12LA650](https://openairdocs.org/ntsb/CEN12LA650.md): Hiller UH-12B · Rio Vista, TX · Accident · No injuries · Limited investigation · Final report · Sep 19, 2012 · N94735 · Substantial damage
  > The catastrophic failure and disintegration of the No. 6 engine piston, which resulted in a total loss of engine power.
- [NTSB LAX06CA296](https://openairdocs.org/ntsb/LAX06CA296.md): Bell 47G · Angels Camp, CA · Accident · No injuries · Data collection · Final report · Sep 18, 2006 · N7762 · Substantial damage
  > a hard landing due to the pilot's inadequate compensation for a wind shift encountered on final approach and his failure to maintain an adequate translational lift airspeed.
- [NTSB FTW98LA371](https://openairdocs.org/ntsb/FTW98LA371.md): Bell 47G · Monette, AR · Accident · No injuries · Limited investigation · Final report · Aug 17, 1998 · N2795A · Substantial damage
  > The pilot's failure to maintain control. A factor was his lack of total flight experience in helicopters.
- [NTSB BFO95LA084](https://openairdocs.org/ntsb/BFO95LA084.md): Bell 47D1 · Sidney, OH · Accident · No injuries · Limited investigation · Final report · Aug 22, 1995 · N9115R · Substantial damage
  > 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 instructor's inadequate supervision of the student.
- [NTSB LAX93LA010](https://openairdocs.org/ntsb/LAX93LA010.md): Bell 47-D1 · El Monte, CA · Accident · No injuries · Limited investigation · Final report · Oct 11, 1992 · N162B · Substantial damage
  > The pilot's failure to maintain the rotor RPM.
- [NTSB ATL90DKG02](https://openairdocs.org/ntsb/ATL90DKG02.md): Bell 47G/Tomcat MK5 · Elberton, GA · Accident · 1 fatal · Final report · Nov 6, 1989 · N73871 · Destroyed
  > A loss of engine power due to carburetor ice.
- [NTSB CHI88DEC05](https://openairdocs.org/ntsb/CHI88DEC05.md): Bell 47D1 (OH-13E) · Stockbridge, MI · Accident · No injuries · Final report · Jul 11, 1988 · N12087 · Substantial damage
  > The plt was spraying an onion field when he noted a vibration, followed by a loud noise & severe shaking of the helicopter. He attempted a forced landing, but the helicopter was unresponsive to cyclic & collective inputs. Subsequently, the right skid dug into…
- [NTSB LAX86LA065](https://openairdocs.org/ntsb/LAX86LA065.md): Hiller H-23A · Madera, CA · Accident · Serious injuries · Limited investigation · Final report · Dec 13, 1985 · N3107G · Destroyed
  > The helicopter crashed during a local frost protection flight. After about one hour of light, in dark night time conditions, fog appeared suddenly and the pilot became disoriented and crashed into the ground.
- [NTSB ATL83LA354](https://openairdocs.org/ntsb/ATL83LA354.md): Bell 47G · Charleston, WV · Accident · No injuries · Limited investigation · Final report · Sep 7, 1983 · N88754 · Substantial damage
  > The helicopter settled after takeoff and rolled over after touching down on sloping terrain. One of the two pilots aboard was being transported to receive a private rating in helicopters. He had been endorsed for solo in the Bell 47 and had flown the Bell 47…
- [NTSB ATL82DLG12](https://openairdocs.org/ntsb/ATL82DLG12.md): Bell-Cont 42G EL TOMCAT-MK5A · Oswego, SC · Accident · No injuries · Final report · Jul 2, 1982 · N73871 · Substantial damage
  > The purpose of the flight was to study cotton fields that the pilot had been assigned to spray in the near future. He stated that during a landing approach on a farm field road, a wasp landed on his left arm and started stinging. The pilot allowed the rotor…
- [NTSB LAX81FUJ12](https://openairdocs.org/ntsb/LAX81FUJ12.md): Bell 47D-1 · Horseshoe Lk, AZ · Accident · Minor injuries · Closed · Nov 30, 1980 · N8272E · Substantial damage
- [NTSB MIA81FKJ03](https://openairdocs.org/ntsb/MIA81FKJ03.md): Bell 47D1 · Panama City, FL · Accident · No injuries · Closed · Nov 8, 1980 · N9115R · Substantial damage
- [NTSB NYC80FGT16](https://openairdocs.org/ntsb/NYC80FGT16.md): Bell 47G · Gettysburg, PA · Accident · No injuries · Closed · Jul 12, 1980 · N2795A · Substantial damage
- [NTSB CHI79DEM02](https://openairdocs.org/ntsb/CHI79DEM02.md): Bell 47G · Saginaw, MI · Accident · No injuries · Closed · Oct 1, 1978 · N7762 · Substantial damage
- [NTSB CHI77FEM43](https://openairdocs.org/ntsb/CHI77FEM43.md): Hiller UH-12B · Carrollton, MI · Accident · No injuries · Closed · Sep 26, 1977 · N94735 · Destroyed
- [NTSB CHI77FEK01](https://openairdocs.org/ntsb/CHI77FEK01.md): Bell 47D1 · Johnstown, OH · Accident · No injuries · Closed · Oct 1, 1976 · N9115R · Substantial damage
- [NTSB OAK76DVD44](https://openairdocs.org/ntsb/OAK76DVD44-154315.md): Bell 47G · Pittsburg, CA · Accident · Minor injuries · Closed · Jul 19, 1976 · N179B · Destroyed
- [NTSB OAK76DVG16](https://openairdocs.org/ntsb/OAK76DVG16.md): Bell 47G · Gold Run, CA · Accident · No injuries · Closed · Aug 25, 1975 · N179B · Substantial damage
- [NTSB MIA76FLG07](https://openairdocs.org/ntsb/MIA76FLG07.md): Bell 47G · Pinewood, SC · Accident · No injuries · Closed · Aug 12, 1975 · N73871 · Substantial damage
- [NTSB FTW75FPD33](https://openairdocs.org/ntsb/FTW75FPD33.md): Bell 47K · Arlington, TX · Accident · No injuries · Closed · Apr 8, 1975 · N7762 · Substantial damage
- [NTSB SEA75DYI01](https://openairdocs.org/ntsb/SEA75DYI01.md): Bell 47G · Midland, OR · Accident · No injuries · Closed · Jul 7, 1974 · N957B · Destroyed
- [NTSB NYC74FHA06](https://openairdocs.org/ntsb/NYC74FHA06.md): Bell 47D1 · Stockertown, PA · Accident · No injuries · Closed · Aug 17, 1973 · N2795A · Substantial damage
- [NTSB FTW74DRA03](https://openairdocs.org/ntsb/FTW74DRA03.md): Bell 47D1 · Sealey, TX · Accident · Minor injuries · Closed · Jul 13, 1973 · N9713C · Substantial damage
- [NTSB MKC72FCA30](https://openairdocs.org/ntsb/MKC72FCA30.md): Bell 47D1 · Dorena, MO · Accident · Serious injuries · Closed · Jun 10, 1972 · N3111G · Substantial damage
- [NTSB NYC72FID13](https://openairdocs.org/ntsb/NYC72FID13.md): Bell 47D-1 · Millers Tavern, VA · Accident · 1 fatal · Closed · Sep 14, 1971 · N9115R · Destroyed
- [NTSB MIA72FLG05](https://openairdocs.org/ntsb/MIA72FLG05.md): Bell 47G · Sumter, SC · Accident · No injuries · Closed · Aug 2, 1971 · N73871 · Destroyed
- [NTSB FTW71FRA65](https://openairdocs.org/ntsb/FTW71FRA65.md): Bell 47D1 · Alvin, TX · Accident · No injuries · Closed · Jun 14, 1971 · N9713C · Substantial damage
- [NTSB LAX70F0142](https://openairdocs.org/ntsb/LAX70F0142.md): Bell 47-H · Laguna Bch, CA · Accident · Serious injuries · Closed · Aug 30, 1969 · N1Z · Substantial damage
- [NTSB FTW70F0022](https://openairdocs.org/ntsb/FTW70F0022.md): Bell 47D1 · Livingston, LA · Accident · 1 fatal · Closed · Jun 24, 1969 · N3111G · Destroyed
- [NTSB FTW69F0392](https://openairdocs.org/ntsb/FTW69F0392.md): Bell 47D1 · Denton, TX · Accident · No injuries · Closed · Feb 25, 1969 · N9115R · Substantial damage
- [NTSB DIA68A0012](https://openairdocs.org/ntsb/DIA68A0012.md): Bell 47D1 · Currituck, NC · Accident · No injuries · Closed · Sep 21, 1967 · N9115R · Substantial damage
- [NTSB SEA67A0032](https://openairdocs.org/ntsb/SEA67A0032.md): Bell 47D1 · Llensburg, WA · Accident · No injuries · Closed · Oct 11, 1966 · N162B · Substantial damage
- [NTSB MIA66A0027](https://openairdocs.org/ntsb/MIA66A0027.md): Bell 47D1 · Sligo, NC · Accident · No injuries · Closed · Sep 7, 1965 · N9115R · Substantial damage
- [NTSB MKC66A0006](https://openairdocs.org/ntsb/MKC66A0006.md): Bell 47D-1 · Wichita, KS · Accident · No injuries · Closed · Jul 24, 1965 · N9713C · Destroyed
- [NTSB MIA66A0008](https://openairdocs.org/ntsb/MIA66A0008.md): Bell Tomcat · Skene, MS · Accident · No injuries · Closed · Jul 12, 1965 · N73871 · Substantial damage
- [NTSB UNK65X0522](https://openairdocs.org/ntsb/UNK65X0522.md): Bell 47H1 · Lagunabeach, CA · Accident · No injuries · Closed · Nov 1, 1964 · N1Z · Substantial damage
- [NTSB UNK64X3405](https://openairdocs.org/ntsb/UNK64X3405.md): Bell 47G · Alameda, CA · Accident · 1 fatal · Closed · Aug 15, 1964 · N179B · Destroyed
- [NTSB UNK64X3311](https://openairdocs.org/ntsb/UNK64X3311.md): Bell 47D1 · Rose Hill, KS · Accident · No injuries · Closed · Aug 9, 1964 · N9713C · Substantial damage
- [NTSB UNK64X1530](https://openairdocs.org/ntsb/UNK64X1530.md): Cont Copter 47G · Windsor, MO · Accident · Minor injuries · Closed · Apr 30, 1964 · N73871 · Substantial damage

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c."mKey" = a.case_mkey
WHERE a.engine_model_code IN ('27027')
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/engine/franklin-6a4200-series/ntsb

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