# NTSB investigations: Enstrom F-28C NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports. Page 2 of 3 · 101 cases ## Cases, newest first - [NTSB LAX92TL#07](https://openairdocs.org/ntsb/LAX92TL%2307.md): Enstrom F-28C · Oakland, CA · Accident · No injuries · Class 3 · Final report · May 28, 1992 · N120PD · Substantial damage - [NTSB DEN92LA001](https://openairdocs.org/ntsb/DEN92LA001.md): Enstrom F-28C · Evergreen, CO · Accident · No injuries · Limited investigation · Final report · Oct 2, 1991 · N552H · Substantial damage > In flight encounter with a sudden downdraft. A factor was: the pilot's lack of total experience in aircraft type. - [NTSB FTW91FA002](https://openairdocs.org/ntsb/FTW91FA002.md): Enstrom F28-C · Mesquite, TX · Accident · 1 fatal · Field investigation · Final report · Oct 7, 1990 · N88RA · Destroyed > Installation error of company maintenance personnel. Factors were the unsuitable terrain, the tailwind, the inability of the pilot to maintain main rotor RPM, and the inadequate annual inspection by company maintenance personnel. - [NTSB SEA90LA116](https://openairdocs.org/ntsb/SEA90LA116.md): Enstrom F28C · Camas, WA · Accident · No injuries · Limited investigation · Final report · Jun 7, 1990 · N51729 · Substantial damage > The failure of a sprag clutch in the rotor-drive mechanism, at an altitude and position that precluded or limited the possibility of a successful outcome. - [NTSB DEN89LA118](https://openairdocs.org/ntsb/DEN89LA118.md): Enstrom F-28C · Regina, NM · Accident · No injuries · Limited investigation · Final report · May 9, 1989 · N88RA · Substantial damage > The pilot's poorly planned approach and disregard of the helicopters performance data. Contributing to the accident was the high density altitude conditions which existed at the time of the accident. - [NTSB FTW89LA079](https://openairdocs.org/ntsb/FTW89LA079.md): Enstrom F28C · Padre Island, TX · Accident · No injuries · Limited investigation · Final report · Apr 8, 1989 · N51774 · Substantial damage > The pilot's decision to fly in adverse weather condition. The adverse weather was a related factor. - [NTSB LAX89LA044](https://openairdocs.org/ntsb/LAX89LA044.md): Enstrom F-28C · Inyokern, CA · Accident · No injuries · Limited investigation · Final report · Nov 16, 1988 · N552CS · Destroyed > The pilot stated that, 'I landed in an open unpopulated area for the mechanic... To make adjustments on the main blade (we were tracking and balancing the blades). I never shut the engine down. I disengaged the clutch. After the adjustment was made, I… - [NTSB NYC88LA160](https://openairdocs.org/ntsb/NYC88LA160.md): Enstrom F-28C · Westerly, RI · Accident · No injuries · Limited investigation · Final report · Jun 5, 1988 · N580H · Substantial damage > The instructor pilot stated that after executing several straight-in and 180 degree autorotations they decided to attempt some hovering autorotations. After executing the first one successfully in a tailwind situation, the student initiated the second one,… - [NTSB NYC88LA018](https://openairdocs.org/ntsb/NYC88LA018.md): Enstrom F-28C · Laconia, NH · Accident · No injuries · Limited investigation · Final report · Oct 25, 1987 · N51699 · Substantial damage > The plt rprtd he was demonstrating a full touchdown autorotation in winds that were from 290 deg at 15 gusting 20 KTS. He stated the touchdown was soft with a lot of pitch pulled in; however, as he lowered the collective after touchdown, the retreating blade… - [NTSB ATL86LA236](https://openairdocs.org/ntsb/ATL86LA236.md): Enstrom F-28C · Coshocton, OH · Accident · No injuries · Limited investigation · Final report · Sep 1, 1986 · N549H · Substantial damage > The plt initiated a maximum power takeoff from a confined parking lot with 2 passengers on board. The area was boardered by obstructions & people. The plt rprtd that during lift-off, she increased power to 2900 RPM, lifted off to a 4' hover with 33' of… - [NTSB NYC86LA113](https://openairdocs.org/ntsb/NYC86LA113.md): Enstrom F-28C · Ridgefield Park, NJ · Accident · No injuries · Limited investigation · Final report · Apr 27, 1986 · N60PB · Substantial damage > A weight imbalance, then a split needle, caused the plt to abort 2 previous attempts to depart. Conditions were corrected & the helicopter departed the waterfront helipad. As it went over the water, the plt noted a loss of eng power. He tried to return to the… - [NTSB NYC86LA011](https://openairdocs.org/ntsb/NYC86LA011.md): Enstrom F-28C · Linden, NJ · Accident · No injuries · Limited investigation · Final report · Oct 17, 1985 · N5691Y · Substantial damage > The helicopter experienced a roll-over during a practice hover autorotation. The acc occurred when the acft started moving backwards during the hover. The left skid dug into the dirt which pitched the acft nose up & rolled it over to the left. - [NTSB DEN85LA094](https://openairdocs.org/ntsb/DEN85LA094.md): Enstrom F-28L · Salt Lake City, UT · Accident · No injuries · Limited investigation · Final report · Mar 14, 1985 · N51671 · Substantial damage > The acft eng lost pwr on final apch at aprx 100 ft AGL. The tail boom was severed during the autorotational landing on soft ground. Post accident exam of the eng revealed that the left magneto point gap was excessively closed. During eng test run, when the… - [NTSB LAX85LA089](https://openairdocs.org/ntsb/LAX85LA089.md): Enstrom F-28C · Sausalito, CA · Accident · No injuries · Limited investigation · Final report · Dec 28, 1984 · N51755 · Substantial damage > Wx conds were sky obscured, visibility less than 1/16 of a mile in fog. Plt arrived at heliport, went directly to acft and started engine. Another heliport plt went to acft and advised mishap plt against departure due to low visibility. Mishap plt replied he… - [NTSB MKC84LA144](https://openairdocs.org/ntsb/MKC84LA144.md): Enstrom F-28C · Louisville, NE · Accident · No injuries · Limited investigation · Final report · May 23, 1984 · N51792 · Substantial damage > According to the plt, the helicopter was involved in a ground search with a non-trained pax in the right seat. With the pax flying the acft in a hover the right skid contacted the muddy terrain causing the acft to roll over. - [NTSB LAX83LA429](https://openairdocs.org/ntsb/LAX83LA429.md): Enstrom F-28C · Quincy, CA · Accident · No injuries · Limited investigation · Final report · Sep 8, 1983 · N619H · Substantial damage > The acft was on a flt to a radio transmitter site at about the 7000 ft level in mountainous terrain. During arrival to the helipad, the plt noticed that several vehicles were parked on the landing surface. While in a hover, he maneuvered the helicopter to an… - [NTSB ATL83LA275](https://openairdocs.org/ntsb/ATL83LA275.md): Enstrom F28C · Brandywine, MD · Accident · No injuries · Limited investigation · Final report · Jul 14, 1983 · N582H · Substantial damage > In level cruise flt the plt experienced a severe vibration followed by uncontrollable rotation to the right. The plt wasunable to regain directional control & crashed into trees. Investigation revealed that the rear t/r drive coupling, PN28-13609, had failed… - [NTSB LAX83FA266](https://openairdocs.org/ntsb/LAX83FA266.md): Enstrom F28C · Mesa, AZ · Accident · Serious injuries · Field investigation · Final report · Jun 7, 1983 · N51684 · Destroyed > The pilot had taken off, went into a normal hover, then traveled about 200 feet for a pattern climb-out when he radioed the tower that the acft did not feel right. The acft started to fishtail. The pilot tried to autorotate but could not stop the rate of… - [NTSB ATL83LA191](https://openairdocs.org/ntsb/ATL83LA191.md): Enstrom F-28C · Wise, VA · Accident · No injuries · Limited investigation · Final report · May 20, 1983 · N654H · Substantial damage > The plt reported that he had stayed in the local area & had been practicing slow hover over the grass beside the rwy. There was a paved ramp that he had to cross, each time he went from one end of the rwy to the other. He said when he came to this area, he… - [NTSB LAX83LA175](https://openairdocs.org/ntsb/LAX83LA175.md): Enstrom F-28C · Chino, CA · Accident · No injuries · Limited investigation · Final report · Mar 31, 1983 · N595H · Substantial damage > The rated airplane plt was endorsed for local solo flts in the helicopter & was practicing autorotative landings. He stated that during a landing, he flared late & allowed the tail & tail rotor to impact the rwy. - [NTSB LAX82DA283](https://openairdocs.org/ntsb/LAX82DA283.md): Enstrom F28C · Phoenix, AZ · Accident · No injuries · Final report · Jul 31, 1982 · N5688N · Substantial damage > The helicopter made a forced landing in a cotton field after tail rotor driveshaft failure. Examination showed a ductileshear overload failure. No evidence of fatigue was reported. - [NTSB DEN82DA089](https://openairdocs.org/ntsb/DEN82DA089.md): Enstrom F-28C · Marmath, ND · Accident · No injuries · Final report · May 17, 1982 · N8617J · Substantial damage > The pilot reported that while he was in flight at about 75 to 80 ft AGL, the engine lost power. During an autorotative landing in an open pasture, a skid dug into the ground and the helicopter rolled over. A subsequent engine teardown revealed evidence that… - [NTSB ATL82FKG06](https://openairdocs.org/ntsb/ATL82FKG06.md): Enstrom 280C · Savannah, GA · Accident · Minor injuries · Closed · Nov 7, 1981 · N5700L · Substantial damage - [NTSB LAX82DVA06](https://openairdocs.org/ntsb/LAX82DVA06.md): Enstrom F-28C · Shaver Lake, CA · Accident · No injuries · Closed · Oct 22, 1981 · N56876 · Substantial damage - [NTSB ANC82DAG01](https://openairdocs.org/ntsb/ANC82DAG01.md): Enstrom F-28C · Big Lake, AK · Accident · No injuries · Closed · Oct 1, 1981 · N51727 · Substantial damage - [NTSB SEA81FYP28](https://openairdocs.org/ntsb/SEA81FYP28.md): Enstrom F-28C · Rice, WA · Accident · Minor injuries · Closed · Jul 21, 1981 · N5689M · Destroyed - [NTSB ANC81FA019](https://openairdocs.org/ntsb/ANC81FA019.md): Enstrom F28C · Anchorage, AK · Accident · No injuries · Closed · Jan 25, 1981 · N51674 · Substantial damage - [NTSB LAX81FVD08](https://openairdocs.org/ntsb/LAX81FVD08.md): Enstrom F-28-C · Eureka, CA · Accident · No injuries · Closed · Dec 26, 1980 · N541H · Substantial damage - [NTSB CHI80FEG19](https://openairdocs.org/ntsb/CHI80FEG19.md): Enstrom F-28 · Xenia, OH · Accident · No injuries · Closed · Jul 13, 1980 · N51789 · Substantial damage - [NTSB CHI80FEG17](https://openairdocs.org/ntsb/CHI80FEG17.md): Enstrom F-28C · Lebanon, OH · Accident · No injuries · Closed · Jul 1, 1980 · N572H · Substantial damage - [NTSB CHI80FEK17](https://openairdocs.org/ntsb/CHI80FEK17.md): Enstrom F-28C · Columbus, OH · Accident · No injuries · Closed · Jun 27, 1980 · N51786 · Substantial damage - [NTSB ANC80FA052](https://openairdocs.org/ntsb/ANC80FA052.md): Enstrom F-28-C · Talkeetna, AK · Accident · No injuries · Closed · Jun 19, 1980 · N544H · Substantial damage - [NTSB LAX80FVG26](https://openairdocs.org/ntsb/LAX80FVG26.md): Enstrom F28C · Sacramento, CA · Accident · No injuries · Closed · Apr 16, 1980 · N51764 · Substantial damage - [NTSB FTW80DRG11](https://openairdocs.org/ntsb/FTW80DRG11.md): Enstrom F-28C · Port Mansfield, TX · Accident · No injuries · Closed · Dec 7, 1979 · N51759 · Substantial damage - [NTSB NYC80FHJ04](https://openairdocs.org/ntsb/NYC80FHJ04.md): Enstrom F28C · Oakdale, NY · Accident · Serious injuries · Closed · Nov 24, 1979 · N642H · Substantial damage - [NTSB NYC79FGM44](https://openairdocs.org/ntsb/NYC79FGM44.md): Enstrom F28C · Erie, PA · Accident · Serious injuries · Closed · Aug 18, 1979 · N573H · Destroyed - [NTSB MKC79DCJ30](https://openairdocs.org/ntsb/MKC79DCJ30.md): Enstrom F28C · Auburn, NE · Accident · No injuries · Closed · Jul 28, 1979 · N51717 · Substantial damage - [NTSB OAK79DXQ29](https://openairdocs.org/ntsb/OAK79DXQ29.md): Enstrom F-28C · Bridgeport, CA · Accident · No injuries · Closed · Jul 26, 1979 · N593H · Substantial damage - [NTSB FTW79DRG45](https://openairdocs.org/ntsb/FTW79DRG45.md): Enstrom F-28C · Victoria, TX · Accident · No injuries · Closed · Jul 13, 1979 · N51774 · Substantial damage - [NTSB ANC79FA065](https://openairdocs.org/ntsb/ANC79FA065.md): Enstrom F-28C · Portage, AK · Accident · No injuries · Closed · Jul 2, 1979 · N532H · Substantial damage - [NTSB OAK79FJA08](https://openairdocs.org/ntsb/OAK79FJA08.md): Enstrom F-28C · Honolulu, HI · Accident · No injuries · Closed · Mar 28, 1979 · N623H · Destroyed - [NTSB NYC79FFA15](https://openairdocs.org/ntsb/NYC79FFA15.md): Enstrom F-28C · Schroon Lake, NY · Accident · Serious injuries · Closed · Mar 17, 1979 · N604H · Substantial damage - [NTSB NYC78FNA35](https://openairdocs.org/ntsb/NYC78FNA35.md): Enstrom F28C · So.Dennis, MA · Accident · Serious injuries · Closed · Jul 7, 1978 · N51667 · Substantial damage - [NTSB SEA78FTI16](https://openairdocs.org/ntsb/SEA78FTI16.md): Enstrom F-28C · Haugan, MT · Accident · No injuries · Closed · May 20, 1978 · N643H · Substantial damage - [NTSB CHI78FEX16](https://openairdocs.org/ntsb/CHI78FEX16.md): Enstrom F28C · Wheatland, IN · Accident · No injuries · Closed · May 8, 1978 · N51684 · Substantial damage - [NTSB NYC77DNC48](https://openairdocs.org/ntsb/NYC77DNC48.md): Enstrom F-28C · Manchester, NH · Accident · No injuries · Closed · Aug 19, 1977 · N642H · Substantial damage - [NTSB OAK77FJA13](https://openairdocs.org/ntsb/OAK77FJA13.md): Enstrom F28C · Honolulu, HI · Accident · No injuries · Closed · Aug 4, 1977 · N595H · Substantial damage - [NTSB NYC77FGM33](https://openairdocs.org/ntsb/NYC77FGM33.md): Enstrom F28C · Ford City, PA · Accident · No injuries · Closed · Aug 3, 1977 · N547H · Substantial damage - [NTSB SEA77DYK20](https://openairdocs.org/ntsb/SEA77DYK20.md): Enstrom F28C · Medford, WA · Accident · No injuries · Closed · Jul 22, 1977 · N51727 · Substantial damage - [NTSB MKC76DER77](https://openairdocs.org/ntsb/MKC76DER77.md): Enstron F-28 · Ortonville, MN · Accident · Minor injuries · Closed · Jul 4, 1976 · N625H · Substantial damage Next page: https://openairdocs.org/ntsb.md?model=3300407&page=3 ## 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_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1 WHERE c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('3300407')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?model=3300407&page=2 --- 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.