# NTSB investigations: Messerschmitt-Boelkow-Blohm BO-105S 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. ## Latest cases - [NTSB ERA22LA342](https://openairdocs.org/ntsb/ERA22LA342.md): Messerschmitt-Boelkow-Blohm BO_105S · Daytona Beach, FL · Accident · No injuries · Class 4 · Limited · Final report · Jun 30, 2022 · N160TH · Substantial damage > The pilot’s rapid reduction of collective following an in-flight loss of control while lifting from a dolly resulting in a hard landing. Contributing to the loss of control was the pilot’s likely inadequate left anti-torque control pedal input during initial… - [NTSB CEN09LA571](https://openairdocs.org/ntsb/CEN09LA571.md): Messerschmitt-Boelkow-Blohm BO-105S · Thibodaux, LA · Accident · Minor injuries · Limited investigation · Final report · Sep 6, 2009 · N131EH · Substantial damage > The pilot's inability to maintain control due to the mechanic's inadvertent switching of two cyclic control tubes of different lengths during maintenance. - [NTSB MIA06LA044](https://openairdocs.org/ntsb/MIA06LA044.md): MBB BO-105S · Ponce, PR · Accident · Minor injuries · Limited investigation · Final report · Jan 12, 2006 · N495LF · Substantial damage > A loose B-nut on the PC line connecting the power turbine governor (PTGOV) to the fuel control unit (FCU) that created a leak and caused the engine to roll back to an idle condition, causing a low hydraulic system pressure and subsequent control lock. A… - [NTSB MIA05FA008](https://openairdocs.org/ntsb/MIA05FA008.md): Eurocopter Deutschland BO-105 CBS5 · Santa Rosa Bch, FL · Accident · 3 fatal · Field investigation · Final report · Oct 20, 2004 · N916SH · Destroyed > The pilot's spatial disorientation and in-flight loss of control of the helicopter after encountering night instrument meteorological conditions resulting in collision with water during the resultant uncontrolled descent. A factor in the accident was the… - [NTSB FTW99LA215](https://openairdocs.org/ntsb/FTW99LA215.md): Mbb BO-105S · Vermilion 250 · Accident · No injuries · Limited investigation · Final report · Aug 10, 1999 · N2785R · Substantial damage > The failure of the pilot to maintain directional control of the helicopter while attempting to takeoff. A factor was the high wind condition. - [NTSB LAX99FA137](https://openairdocs.org/ntsb/LAX99FA137.md): Mbb B0-105CBS-4 · Indian Springs, NV · Accident · 3 fatal · Field investigation · Final report · Apr 4, 1999 · N105HH · Destroyed > the pilot's decision to continue VFR flight in deteriorating IFR conditions resulting in spatial disorientation and subsequent loss of control. - [NTSB FTW97FA121](https://openairdocs.org/ntsb/FTW97FA121.md): MBB BO-105S · Lena, LA · Accident · 1 fatal · Field investigation · Final report · Mar 14, 1997 · N7161J · Destroyed > The pilot's continued VFR flight into instrument meteorological conditions, and his subsequent loss of aircraft control due to spatial disorientation. Factors were the pilot not following company procedures and directives, the low ceiling, and the dark night… - [NTSB FTW97FA014](https://openairdocs.org/ntsb/FTW97FA014.md): Mbb BO-105 CBS-4 · Cameron, LA · Accident · 1 fatal · Field investigation · Final report · Oct 10, 1996 · N299EH · Destroyed > the pilot's failure to maintain clearance with terrain for undetermined reasons. Contributing factors were the dark night and pilot fatigue. - [NTSB FTW96FA265](https://openairdocs.org/ntsb/FTW96FA265.md): Mbb BO-105 · Sabine Pass, TX · Accident · 4 fatal · Field investigation · Final report · Jun 21, 1996 · N2906T · Destroyed > The failure of the sun gear within the main transmission resulting in the main rotor system not being driven. - [NTSB FTW96FA136](https://openairdocs.org/ntsb/FTW96FA136.md): Mbb BO-105 · Gulf Of Mexico · Accident · 2 fatal · Field investigation · Final report · Feb 10, 1996 · N126EH · Destroyed > The pilot's failure to maintain clearance from the ocean for unknown reasons. - [NTSB FTW96FA028](https://openairdocs.org/ntsb/FTW96FA028.md): Mbb BO-105S · League City, TX · Accident · 2 fatal · Field investigation · Final report · Oct 26, 1995 · N105AG · Destroyed > the pilot's failure to maintain aircraft control. Factors were the pilot's lack of total experience in the MBB BO-105 helicopter and the dark night light conditions. - [NTSB FTW95LA099](https://openairdocs.org/ntsb/FTW95LA099.md): MBB BO-105S · Cameron 278b · Accident · No injuries · Limited investigation · Final report · Jan 23, 1995 · N51948 · Substantial damage > The pilot's failure to remove the tiedoown during the preflight and an inadequate preflight. - [NTSB MIA95FA018](https://openairdocs.org/ntsb/MIA95FA018.md): Bölkow BO-105S · Perry, FL · Accident · 2 fatal · Field investigation · Final report · Nov 4, 1994 · N911LF · Destroyed > Failure of the pilot to maintain sufficient clearance from the power line, while buzzing (at low altitude). - [NTSB SEA94LA047](https://openairdocs.org/ntsb/SEA94LA047.md): MBB BO-105S · Clearwater, OR · Accident · Minor injuries · Limited investigation · Final report · Jan 6, 1994 · N204PC · Destroyed > The pilot in command's failure to maintain clearance with the transmission wires. Factors contributing to the accident were the wires and sunglare. - [NTSB FTW92LA212](https://openairdocs.org/ntsb/FTW92LA212.md): MBB BO 105CBS-4 · Ship Shoal 90 · Accident · No injuries · Limited investigation · Final report · Aug 16, 1992 · N295EH · Substantial damage > Loss of power to both engines from fuel starvation due to the pilot's failure to switch on the main fuel boost pumps. - [NTSB CHI92LA233](https://openairdocs.org/ntsb/CHI92LA233.md): MBB BO-105 · Madison, SD · Accident · Minor injuries · Limited investigation · Final report · Aug 9, 1992 · N30SV · Substantial damage > The pilot's inadequate visual lookout and inadvertent descent. - [NTSB NYC92FA044](https://openairdocs.org/ntsb/NYC92FA044.md): MBB BO-105CBS · De Ruyter, NY · Accident · 3 fatal · Field investigation · Final report · Dec 10, 1991 · N750H · Destroyed > An inflight collision with terrain after the pilot experienced spatial disorientation. Factors related to the accident were the night conditions, and the lack of visual cues. - [NTSB DEN90T#A01](https://openairdocs.org/ntsb/DEN90T%23A01.md): MBB BO-105S · Mercury, NV · Accident · No injuries · Class 3 · Final report · Oct 2, 1989 · N7EG · Substantial damage - [NTSB FTW89FA093](https://openairdocs.org/ntsb/FTW89FA093.md): MBB BO-105S · W Cameron Blk · Accident · 1 fatal · Field investigation · Final report · May 7, 1989 · N2785B · Destroyed > The partial electrical failure of the micro-switch for the outboard lateral guide assembly, and the incorrect guard installed on the hydraulic test switch, resulting in a total hydraulic failure. Factors were: the incorrect installation of the guard by an… - [NTSB FTW89LA031](https://openairdocs.org/ntsb/FTW89LA031.md): MBB BO-105 · South Marsh 113 · Accident · Minor injuries · Limited investigation · Final report · Dec 5, 1988 · N2785B · Substantial damage > Failure and separation of one of the tail rotor blades for undetermined reasons. Thr resulting imbalance and vibration caused the separation of the 90 degree gearbox and a portion of the vertical pylon which necessitated the emergency autorotation to the… - [NTSB FTW86FA116](https://openairdocs.org/ntsb/FTW86FA116.md): MBB 105 · Houma, LA · Accident · 1 fatal · Field investigation · Final report · Jun 13, 1986 · N2784E · Destroyed > A fatigue failure in a main rotor blade pitch change link resulted in the loss of control of one blade, leading to an in flight separation of the tail boom. The helicopter was uncontrollable and pitched forward, impacting the ground inverted. - [NTSB LAX86LA214](https://openairdocs.org/ntsb/LAX86LA214.md): MBB BO-105S · La Jolla, CA · Accident · Serious injuries · Limited investigation · Final report · May 9, 1986 · N2784N · Substantial damage > The pilot lost control of the helicopter's rotor system during the initial climb phase of the flight. The aircraft spun out of control and crashed on an interstate highway. Company maint applied AD-85-26-02 to detect or prevent jamming of rotorcraft controls… - [NTSB FTW83FA430](https://openairdocs.org/ntsb/FTW83FA430.md): MBB BO-105S · Grand Chenier, LA · Accident · 2 fatal · Field investigation · Final report · Sep 15, 1983 · N3456T · Destroyed > The acft departed an offshore platform at 1510 for a 13 min flt to Grand Chenier. On 9/20 the wreckage was recovered from the floor of the gulf. The bottom left side of the fuselage revealed evidence of high impact forces with the water. There was no evidence… - [NTSB FTW79DA018](https://openairdocs.org/ntsb/FTW79DA018.md): Bolkow B-105 · Morgan City, LA · Accident · 1 fatal · Closed · Nov 29, 1978 · N46977 · Substantial damage - [NTSB FTW78FA078](https://openairdocs.org/ntsb/FTW78FA078.md): Bolkow BO-105 · Morgan City, LA · Accident · No injuries · Closed · Sep 11, 1978 · N46977 · Substantial damage - [NTSB NYC70AN126](https://openairdocs.org/ntsb/NYC70AN126.md): Mess-Boelkw B0-105 · Little Compton, RI · Accident · 2 fatal · Closed · Jun 3, 1970 · N197F · Destroyed ## 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 ('5626006')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?model=5626006 --- 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.