# NTSB investigations: Sikorsky S-76A A list on [Sikorsky S-76A](https://openairdocs.org/model/sikorsky-s-76a.md). Matched to the registry by N-number and event date, newest first. - [NTSB ERA18LA053](https://openairdocs.org/ntsb/ERA18LA053.md): Sikorsky S76 · Islamorada, FL · Accident · No injuries · Class 3 · Limited · Final report · Dec 15, 2017 · N911FK · Substantial damage > The pilot's activation of the rotor brake while the No. 2 engine was still set to govern the power turbine speed, which resulted in continuous power being applied to the rotor while the rotor brake was engaged and led to excessive friction, heat, and a… - [NTSB CEN13FA192](https://openairdocs.org/ntsb/CEN13FA192.md): Sikorsky S-76A++ · Grand Lake, LA · Accident · 3 fatal · Field investigation · Final report · Mar 15, 2013 · N574EH · Destroyed > Fracture of the red tail rotor blade spar, which resulted in the separation and departure of the red tail rotor blade from the helicopter and subsequent compromised tail gearbox. The red tail rotor blade was not recovered, thus the cause of the initial… - [NTSB CHI08FA141](https://openairdocs.org/ntsb/CHI08FA141.md): Sikorsky S-76A · Grand Rapids, MI · Accident · Serious injuries · Field investigation · Final report · May 29, 2008 · N176SH · Destroyed > The pilot's failure to maintain tail rotor obstacle clearance from a tower during takeoff. - [NTSB DFW07LA011](https://openairdocs.org/ntsb/DFW07LA011.md): Sikorsky S-76A++ · Eugene Isl 259 · Accident · Minor injuries · Limited investigation · Final report · Oct 22, 2006 · N22342 · Destroyed > The flight crew's failure to maintain clearance with the water and their diverted attention to secondary tasks while preparing to land. Contributing factor were the low ceilings and the heavy rains restricting their visibility. - [NTSB DFW06LA093](https://openairdocs.org/ntsb/DFW06LA093.md): Sikorsky S-76A · Houston, TX · Accident · No injuries · Limited investigation · Final report · Apr 19, 2006 · N8063R · Substantial damage > The failure by maintenance personnel to secure the tail rotor driveshaft cowling after performing maintenance which resulted in a loss of tail rotor control. A contributing factor was the pilot's improper preflight inspection of the tail rotor driveshaft area. - [NTSB DCA04MA030](https://openairdocs.org/ntsb/DCA04MA030.md): Sikorsky S76A++ · Gulf of Mexico · Accident · 10 fatal · Class 1 · Major · Final report · Mar 23, 2004 · N579EH · Destroyed > the flight crew's failure to identify and arrest the helicopter's descent for undetermined reasons, which resulted in controlled flight into terrain. - [NTSB LAX01FA252](https://openairdocs.org/ntsb/LAX01FA252.md): Sikorsky S-76A · Los Angeles, CA · Accident · Minor injuries · Field investigation · Final report · Jul 21, 2001 · N769BB · Substantial damage > The failure of the pilot to reduce the engine power control levers to ground idle prior to leaving the helicopter, resulting in the unmanned helicopter moving on the helipad and performing a dynamic rollover. - [NTSB FTW01LA176](https://openairdocs.org/ntsb/FTW01LA176.md): Sikorsky SK-76A · New Iberia, LA · Accident · No injuries · Limited investigation · Final report · Jul 10, 2001 · N164AG · Substantial damage > the loss of control while maneuvering for undetermined reasons. - [NTSB FTW01LA081](https://openairdocs.org/ntsb/FTW01LA081.md): Sikorsky SK-76A · Ec 270 · Accident · 1 fatal · Limited investigation · Final report · Mar 20, 2001 · N376AL · No damage > the passenger's inadvertent encounter with the rotating main rotor blades. - [NTSB NYC99FA140](https://openairdocs.org/ntsb/NYC99FA140.md): Sikorsky S-76A · Jackson, KY · Accident · 4 fatal · Field investigation · Final report · Jun 15, 1999 · N2743E · Destroyed > the failure of the PIC to adequately supervise the SIC, and maintain a positive climb. Factors were the fog and dark night. - [NTSB FTW97LA356](https://openairdocs.org/ntsb/FTW97LA356.md): Sikorsky S-76A · Patterson, LA · Accident · Serious injuries · Limited investigation · Final report · Sep 22, 1997 · N517AL · Substantial damage > failure of the copilot to maintain a positive rate of climb after takeoff, which led to an inadvertent descent and collision with a crop of sugar cane and the ground. Factors relating to the accident were: darkness, fog, and the pilot-in-command's inadequate… - [NTSB NYC92GA147](https://openairdocs.org/ntsb/NYC92GA147.md): Sikorsky S-76A · Graefenburg, KY · Accident · Serious injuries · Final report · Aug 7, 1992 · N50KY · Destroyed > An inadequate preflight inspection by the flight crew by failing to assure that all four of the engine cowling latches were properly secured, which resulted in subsequent failure of section ii of the tail rotor driveshaft after the cowling contacted the main… - [NTSB FTW91LA098](https://openairdocs.org/ntsb/FTW91LA098.md): Sikorsky S76A · Ship Shoal 290k · Accident · Serious injuries · Limited investigation · Final report · Jun 17, 1991 · N5418N · Destroyed > The copilot's reduction of power to ground idle on both engines. Factors were the pilot's poor landing technique and his failure to establish adequate crew coordination. - [NTSB NYC89FA106](https://openairdocs.org/ntsb/NYC89FA106.md): Sikorsky S-76A · Manhattan, NY · Accident · No injuries · Field investigation · Final report · Mar 27, 1989 · N586C · 2 aircraft · Substantial damage > The pilot of the other helicopter misjudged clearance between his and the other helicopter. Factors related to the accident were: inadequate layout (markings) of the heliport parking area, insufficient standard/requirement for numerical indication of maximum… - [NTSB NYC89FA088](https://openairdocs.org/ntsb/NYC89FA088.md): Sikorsky S-76A · Washington, PA · Accident · Serious injuries · Field investigation · Final report · Feb 22, 1989 · N767SA · Substantial damage > The pilot's inadvertent VFR flight into instrument meteorological conditions (IMC) which resulted in his loss of aircraft control. Factors related to the accident was: the pilot's flight into known weather, the adverse weather, and trees at the accident sight. - [NTSB BFO88LA058](https://openairdocs.org/ntsb/BFO88LA058.md): Sikorsky S-76A · Moundsville, WV · Accident · Minor injuries · Limited investigation · Final report · Jun 23, 1988 · N54C · Destroyed > The helicopter contacted power lines shortly after takeoff from a mine site. The nose gear of the helicopter contacted an uninsulated static wire. This wire was strung with one other static wire and two black insulated power lines. Both crew members stated… - [NTSB FTW88LA082](https://openairdocs.org/ntsb/FTW88LA082.md): Sikorsky S-76A · Offshore Oil · Accident · Serious injuries · Limited investigation · Final report · Mar 24, 1988 · N1547N · No damage > After landing on the platform, the copilot moved the power levers to flight idle and set the main rotor blade tip path plane to the height normally used. When an enplanning passenger came up the stairs onto the platform, he was struck on the head by the main… - [NTSB FTW87FA059](https://openairdocs.org/ntsb/FTW87FA059.md): Sikorsky S-76A · Angleton, TX · Accident · 2 fatal · Field investigation · Final report · Feb 5, 1987 · N767AL · Destroyed > Shortly after tkof, the plt contacted his company (opns) & said he had inadvertently enctrd IFR conds. He asked opns to relay info to him fm the apch plate for the ILS rwy 17 apch to brazoria county arpt. After rcvg the info, he contacted houston apch ctl &… - [NTSB NYC86IA109](https://openairdocs.org/ntsb/NYC86IA109.md): Sikorsky S-76 · Atlantic City, NJ · Incident · No injuries · Incident investigation · Final report · Mar 20, 1986 · N38 · Minor damage > During a preflight examination of a Sikorsky S76 the instructor and student discovered a hole in the leading edge of the pylon above the intermediate gear box and scuff mark on the main rotor blade caps. The instructor and student had just completed a 2.1 hr… - [NTSB FTW86LA032](https://openairdocs.org/ntsb/FTW86LA032.md): Sikorsky S-76A · Grand Isle Bl73 · Accident · 3 fatal · Limited investigation · Final report · Jan 5, 1986 · N7612L · Substantial damage > The acft rolled over in a high x-wind after landing while deplaning passengers. The acft had landed on a moving barge. A landing into the wind was blocked by a crane so the plt sideslipped from a flt path that paralleled the ships movement. The wind was… - [NTSB NYC85FA145](https://openairdocs.org/ntsb/NYC85FA145.md): Sikorsky S76A · Belmar, NJ · Accident · 1 fatal · Field investigation · Final report · Jun 11, 1985 · N176FJ · 2 aircraft · Substantial damage > During takeoff & landing practice for a pre-solo plt the CFI saw a helicopter, N176FJ, approaching the arpt. N4956B, at the time of 1st sighting, was on a left base for rwy 3. The rotorcraft apparently did not see N4956B or hear any radio calls at this… - [NTSB FTW85LA119](https://openairdocs.org/ntsb/FTW85LA119.md): Sikorsky S-76A · Houma, LA · Accident · Minor injuries · Limited investigation · Final report · Feb 19, 1985 · N31223 · Destroyed > The aircrew had just completed a medivac flt & were repositioning the helicopter to the home base. While they were en route, the company dispatcher informed the crew that fog was moving into the area & that they had better hurry. During the night apch, the… - [NTSB NYC84FA319](https://openairdocs.org/ntsb/NYC84FA319.md): Sikorsky S-76A · Unionville, PA · Accident · Serious injuries · Field investigation · Final report · Sep 22, 1984 · N79K · Substantial damage > On approach, acft yawed right. Plt reduced power and executed emerg lndg. Before shutdown, it was noted the t/r was stationary while the main rotor continued to turn. Investigation revealed t/r drive shaft had separted due to thermal/mechanical damage… - [NTSB FTW84FA216](https://openairdocs.org/ntsb/FTW84FA216.md): Sikorsky S-76A · High Isl Blk595 · Accident · No injuries · Field investigation · Final report · May 1, 1984 · N763AL · Substantial damage > During cruise flight at 500 ft over gulf waters, the left engine sustained a massive, uncontained, explosive failure. Sharpnel penetrated the right engine, which failed from damage. Sharpnel also penetrated the ac and DC junction boxes, causing complete… - [NTSB CHI83FA428](https://openairdocs.org/ntsb/CHI83FA428.md): Sikorsky S-76A · Chicago, IL · Accident · Minor injuries · Field investigation · Final report · Sep 14, 1983 · N521AC · Destroyed > While cruising at 2000 ft MSL & 150 KTS, the crew heard a loud noise, and simultaneously, the helicopter yawed aprx 30 to 40 deg to the right & pitched nose down. The aircrew began an autorotation & activated the emergency floats. The helicopter continued in… - [NTSB FTW81FA061](https://openairdocs.org/ntsb/FTW81FA061.md): Sikorsky S-76 · Conroe, TX · Accident · Serious injuries · Closed · Mar 31, 1981 · N765AL · Destroyed - [NTSB FTW80FA111](https://openairdocs.org/ntsb/FTW80FA111.md): Sikorsky S-76 · Patterson, LA · Accident · Minor injuries · Closed · Sep 3, 1980 · N766AL · Destroyed - [NTSB FTW80FRD10](https://openairdocs.org/ntsb/FTW80FRD10.md): Sikorsky S-76A · Intracstl City, LA · Accident · No injuries · Closed · Nov 29, 1979 · N476AL · Substantial damage - [NTSB MIA78FA109](https://openairdocs.org/ntsb/MIA78FA109.md): Sikorsky S76A · W Palm Beach, FL · Accident · Serious injuries · Closed · Jul 28, 1978 · N763SA · 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.aircraft_model_code IN ('8143006') ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/model/sikorsky-s-76a/ntsb --- 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.