FTW01LA081

NTSB accident investigation · Sikorsky SK-76A · Ec 270 · March 20, 2001

Accident · FatalLimited investigationFinal report
Date
March 20, 2001, 10:41 local (16:41 UTC)
Place
Ec 270
Injuries
1 fatal, 8 uninjured; on the ground: 1 fatal
Damage
No damage
Phase of flight
Standing
Aircraft
N376ALSikorsky SK-76A
Weather
Visual (VMC) · Day
Status
Completed · report July 30, 2001
Report
Approved by Office Director
Parties
FAA FSDO
FAA report
20010320004579A
Case key
51967

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

the passenger's inadvertent encounter with the rotating main rotor blades.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Propeller/rotor contact to personStanding - idling rotors
Propeller/jet blast encounter - inadvertentPassengerCause

Analysis

After a normal landing to an offshore platform, the helicopter was parked with the engine and main rotor blades operating at idle. A passenger entered the base of the heliport unexpectedly and unescorted through a stairwell that was located near the nose of the helicopter. The passenger walked into the path of the main rotor blades, was struck by a main rotor blade and received fatal injuries.

Factual narrative

On March 20, 2001, approximately 1041 central standard time, a Sikorsky SK-76A helicopter, registered to and operated by Air Logistics L.L.C., of New Iberia, Louisiana, was standing with rotors engaged on an offshore platform, East Cameron 270 (EC 270), when a passenger, attempting to board, was struck by a main rotor blade. The passenger sustained fatal injuries, and the pilot, co-pilot, and other passengers were not injured. Visual meteorological conditions prevailed and a company VFR flight plan was filed for the 14 Code of Federal Regulations Part 135 on-demand domestic air taxi flight. At the time of the accident, the flight had just arrived on the platform to drop off three of its nine passengers, and was picking up three other passengers (one of whom was the fatally injured passenger) .

According to the pilot-in-command statement, after a normal landing to offshore platform EC 270, he "retarded the throttles" to idle. The co-pilot and one passenger exited the left side, and two passengers exited the right side of the helicopter. Approximately one minute later, the pilot heard a noise and saw (5 feet from the nose of the helicopter at his 2 o'clock position) that a passenger fell to the heliport. The pilot kept the helicopter running to keep the rotor blades away from assisting personnel. After the personnel were clear of the blades, the pilot shutdown the helicopter.

The passenger had entered the base of the heliport through a stairwell that was located near the nose of the helicopter. The nose of the helicopter was oriented at a heading of 230 degrees. At the time of the landing, the wind direction was variable from 300 to 020 degrees at 35 knots, gusting to 40 knots.

The co-pilot added that he "visually checked the front rotor tip path plane and it was set properly." The passenger came onto the heliport unexpectedly and unescorted.

According to the Sikorsky 76 Maintenance Manual (SA 4047-76-2, revision Apr 15/83), the main rotor blade's ground clearance while rotating at flight idle, is 8 feet, 1 inch, and the main rotor blade's ground clearance in the static position is 6 feet, 3.2 inches.

On March 18, 2001, the passenger attended a helicopter safety meeting that was held at the EC 270 platform. The safety meeting topics included: "beware of tail rotor, never carry any item vertically to chopper, and additional helicopter safety issues."

Aircraft

Registration
N376AL
Reported as
Sikorsky SK-76A
Category
Helicopter
Serial number
76002
Airframe hours
18,899.7
Engines
Allison C-30, 1,300 horsepower, turbo shaftAllison C-30, 1,300 horsepower, turbo shaft
Damage
No damage
Flight
Part 135
Registered owner
Air Logistics Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Continuous airworthiness · March 18, 2001 · 3.8 hours before
Departed
NONE · Ec 359, GM
Destination
NONE · Ec 270, GM
Flight plan
Company VFR

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
49
Injuries
None
Certificate
Airline transport
Instrument ratings
Helicopter
Medical
Class 1, Valid Medical--w/ waivers/lim
Last flight review
October 24, 2000
Seat
Center
Flight hours
16,347 total · 705 in this make and model · 15,179 as pilot in command · 179 in the last 90 days · 40 in the last 30 days · 3 in the last 24 hours
Role
Co-pilot
Age
55
Injuries
None
Certificate
Airline transport
Instrument ratings
Helicopter
Medical
Class 2, Valid Medical--w/ waivers/lim
Last flight review
March 1, 2000
Seat
Right
Flight hours
12,211 total · 1,918 in this make and model · 10,770 as pilot in command · 177 in the last 90 days · 38 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 35 knots, gusting 40
Visibility
10 statute miles
Lowest ceiling
None
Temperature
64 °F, dew point 50 °F
Altimeter
30.03 inHg

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.