MBB BO-105 N2908U

Summary

On 23 June 1983 at about 15:00 local time, a MBB BO-105 registered N2908U was involved in an accident near Nantucket, Massachusetts, United States. 2 people were on board and one had minor injuries. The aircraft was substantially damaged. No probable cause statement is available for this record.

Date

23 June 1983 at 15:00

Classification

Accident

Location

Nantucket, Massachusetts, United States

Nearest airport

Nantucket (ACK)

Coordinates

Not recorded

Aircraft

MBB BO-105

Registration

N2908U

Category

Helicopter

Engines

2

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Other Work Use

Phase of flight

Not recorded

Route

Nantucket → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

NYC83LA150

1 person had minor injuries.

The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.

Nothing about the cause is stated here that is not in the source record.

Read the full NTSB narrative

THE HELICOPTER MADE A HARD LANDING DURING AN ABORTED TAKEOFF FOLLOWING A MEDICAL EVACUATION DEMONSTRATION AT NANTUCKET. AFTER THE PRESENTATION THE ACFT WAS CHANGED FROM A 2 LITTER CONFIGURATION. THE PILOT NOTED THAT THE CYCLIC RETENTION CAP WAS ON THE CYCLIC STICK MOUNTING POINT BUT DID NOT KNOW WHO PUT IT THERE. THE RACK WAS THEN PUT IN PLACE AND HELD THERE BY ONE OF THE RETAINING CLIPS AND THE STRETCHER MOUNTED IN POSTION. CONTROLS WERE CHECKED FOR FREEDOM OF MOVEMENT AND THE FLIGHT TOOK OFF. IN THE INITIAL CLIMB, CYCLIC WAS MOVED FORWARD WITH NO PROBLEM BUT LATER IN THE CLIMB THE NOSE CONTINUED UP AND FORWARD CYCLIC WAS ATTEMPTED BUT WOULD NOT GO FORWARD OF THE POSITION IT WAS IN. THE PILOT LOWERED COLLECTIVE AND DESCENDED HITTING THE GROUND TAIL LOW. THE ACFT BOUNCED AND COLLECTIVE WAS HELD DOWN UNTIL THE ACFT TWISTED TO A STOP. INVESTIGATION REVEALED THAT CONTROL INTERFERENCE BY A CYCLIC STICK RETENTION KNOB, INADVERTENTLY INSTALLED, PREVENTED FORWARD CYCLIC MOVEMENT BECAUSE OF CONTACT WITH THE LEFT LITTER RACK.

Quoted verbatim from the NTSB record.