# NTSB FTW76AF101: Bolkow BO105C, N149BB, Intracoastal, LA, June 13, 1976

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: June 13, 1976
- Place: Intracoastal, LA · INTRACOASTAL, LA
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal, 3 minor
- Status: Completed, report January 13, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 155157
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW76AF101
- Page: https://openairdocs.org/ntsb/FTW76AF101

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3626  76/6/13  NR.INTRACOASTAL,LA    BOLKOW BO105C       CR-  1  0  0  COMMERCIAL                COMMERCIAL, AGE 43, 4674
        TIME - 1630                    N149BB              PX-  0  0  3  AIR TAXI-PASSG            TOTAL HOURS, 203 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         INTRACOASTAL,LA              GULF OF MEXICO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: MAIN ROTOR                      IN FLIGHT: NORMAL CRUISE
           DITCHING                                                 LANDING: POWER-ON LANDING
        PROBABLE CAUSE(S)
           ROTORCRAFT - ROTOR ASSEMBLIES: MAIN ROTOR BLADES
           PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: POOR/INADEQUATE DESIGN
           MISCELLANEOUS ACTS,CONDITIONS - CORRODED/CORROSION
        FACTOR(S)
           PILOT IN COMMAND - FAILED TO USE OR INCORRECTLY USED MISC.EQUIPMENT
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON WATER
        REMARKS- M/R INERTIA WEIGHTS SEPARATED & HIT T/R BLADE.  PLTS SHOULDER HARNESS FOUND HANGING OVER SEAT BACK
```

## Aircraft

- Registration: [N149BB](https://openairdocs.org/deregistered/N149BB-2012-06-21), registration cancelled 2012-06-21, S/N S-49, built 1972 (OpenAirDocs)
- Reported make and model: BOLKOW BO105C
- Registry model: [Messerschmitt-Boelkow-Blohm-Gm BO-105C](https://openairdocs.org/model/messerschmitt-boelkow-blohm-gm-bo-105c) (registry code 5626005) (OpenAirDocs)
- Registry engine: [Allison 250 SER 250HP](https://openairdocs.org/engine/allison-250-ser-250hp) (registry code 03002, turbo-shaft) (OpenAirDocs)
- Category: Helicopter
- Engines: turbo shaft
- Damage: Substantial damage

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19760613038599A](https://openairdocs.org/incident/19760613038599A), Jun 13, 1976: Bolkms BO105C, Intracoastal, LA, Substantial damage. M/r inertia weights separated & hit t/r blade. Plts shoulder harness found hanging over seat back

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

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