SAFETY STATISTICS

1999 Stats

2000 Stats
2001 Stats
2002 Stats
2003 Stats
2004 Stats

1998 E & P FORUM WORLD-WIDE OIL INDUSTRY HELICOPTER OPERATIONS AND SAFETY REVIEW
1999 E & P FORUM WORLD-WIDE OIL INDUSTRY HELICOPTER OPERATIONS AND SAFETY REVIEW
2000 E & P FORUM WORLD-WIDE OIL INDUSTRY HELICOPTER OPERATIONS AND SAFETY REVIEW
2001 E & P FORUM WORLD-WIDE OIL INDUSTRY HELICOPTER OPERATIONS AND SAFETY REVIEW


2005

HELICOPTER SAFETY ADVISORY CONFERENCE (HSAC) GULF OF MEXICO OFFSHORE HELICOPTER OPERATIONS AND SAFETY REVIEW

 

 

HSAC Members:
February 13, 2006

  Please find attached the Helicopter Safety Advisory Conference (HSAC) "2005 Gulf of Mexico Offshore Helicopter Operations and Safety Review". The membership support and response from 21 helicopter operators for this review is not only appreciated, but vital in establishing a meaningful report. Continued support is encouraged for the future.

The 2005 Gulf of Mexico oil industry helicopter accident rate per 100,000 flight hours was 2.05 with a total of 8 accidents (6 single engine, 1 each light and medium twin) compared to a 22-year annual average accident rate of 1.89. The fatal accident rate per 100,000 flight hours during 2005 was 0.51 with a total of 2 fatal accidents (5 fatalities) compared to a 22-year average of 0.74.

During 2005, improper pilot procedures and technical fault each accounted for 3 (32%) or 6 of the 8 accidents. The additional accidents causes were 1 unknown and 1 related to fuel quality control.

In the last 5 years, there have been 47 accidents of which 15 were fatal (32%), resulting in 34 fatalities and 42 injuries. 23 (49%) of these accidents were due to pilot procedure related causes, 13 (28%) were due to technical fault, and the remaining accidents due other mixed factors. For technical accidents, there were 9 engine related events, 2 tail rotor events, and 2 for other technical causes. 13 of the 47 accidents (28%) were related to events around the helideck (5 obstacle strikes, 4 loss of control, 2 passenger control, and 1 each approach procedure / tie-down removal). The specific leading causes of accidents in the last 5 years have been:

  • 9 (19%) engine related and 9 loss of control with 3 fatalities in each category (6 total)
  • 4 (9%) controlled flight into terrain or water - with 7 fatalities, 4 helideck obstacle strikes with 4 fatalities, and 4 fuel quality control
  • 3 (6%) loose cargo striking tail rotor
  • 3 (6%) unknown causes with 14 fatalities (1 night with 10 fatalities)

Note - Although night flight accounts for less than 3% of the GoM flight hours, in the last five years, the 3 night accidents accounted for 7% of the total accidents and 32% of total fatalities (11 of 34 total). 2 of the 3 events were fatal.

HSAC has published a number of Recommended Practices to address these issues and they can be reviewed at www.HSAC.org. We are optimistic that by sharing this information with all operators and other oil industry group's, safety initiatives may be developed and implemented to reduce accidents and incidents.

Bob Williams
Industry Liaison Committee Member

 

 

 

GULF OF MEXICO OFFSHORE HELICOPTER OPERATIONAL DATA SUMMARY

 

YEAR

TYPE HELICOPTER

 

PASSENGERS  CARRIED

 

HOURS 
FLOWN

 

NUMBER

OF    FLIGHTS

SINGLE ENGINE

LIGHT TWIN 

MEDIUM TWIN     

HEAVY TWIN

TOTAL FLEET

2000

385

76

106

15

582

3,451,511

441,908

1,394,679

2001

407

87

121

17

632

3,127,449

451,712

1,473,057

2002

411

77

121

16

625

3,088,865

402,632

1,564,362

2003

410

66

118

13

607

2,574,810

381,273

1,345,075

2004

387

60

100

14

561

2,329,064

361,514

1,270,863

2005*
424
48
99
18
589
2,625,322
389,544
1,310,736

*   Data extracted from voluntary input of 21 helicopter operators Gulf of Mexico

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GULF OF MEXICO OFFSHORE
HEL ICOPTER OPERATIONAL DATA DETAILS

 

HOURS by TYPE HELICOPTER

OPERATIONS (Takeoff/Landings) by TYPE HELICOPTER

YEAR

SINGLE ENGINE

LIGHT TWIN

MEDIUM TWIN

HEAVY TWIN

TOTAL FLEET

SINGLE ENGINE

LIGHT TWIN

MEDIUM TWIN

HEAVY TWIN)

TOTAL FLEET

1999

316,029

38,126

79,736

8,016

441,908

1,051,160

134,035

192,289

17,197

1,394,679

2000

309,429

35,318

96,548

10,417

451,712

1,123,393

125,832

204,285

19,547

1,473,057

2001

284,226

26,610

83,556

8,240

402,632

1,251,945

99,117

195,883

17,417

1,564,362

2003

275,580

22,161

76,948

6,584

381,273

1,102,644

67,399

163,869

11,163

1,345,075

2004

263,258

20,436

69,479

8,341

361,514

1,048,858

65,704

144,545

11,756

1,270,863

2005
275,225
21,386
80,787
12,146
389,544
1,062,942
65,076
162,476
20,242
1,310,736

 

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GULF OF MEXICO HELICOPTER FLEET OPERATIONAL DATA

Averages Per
Helicopter

2002

2003

2004

2005

Averages Per Helicopter

2002

2003

2004

2004

Passengers per  Day
per  5 Day Week

11,880

9,903

8,958

10,097

Annual Hours Per Aircraft

644

628

644

662

Flights Per Day

4,286

3,685

3,482

3,591

Flights Per
Aircraft

2,503

2,216

2,265

2,227

Average Flight Duration
in Min.

15

17

17

18

Passengers  Flown
Per Year

4,942

4,242

4,152

4,461

As a service to the Helicopter Safety Advisory Conference (HSAC) membership, this Gulf of Mexico Offshore Helicopter Statistical Report is compiled annually from information submitted voluntarily by the membership and helicopter operators.  The information is neither verified nor reviewed for accuracy and should be treated as unofficial.  The data is believed to be representative; however, the HSAC assumes no liability for accuracy or completeness.

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2005 GULF OF MEXICO OFFSHORE HELCOPTER ACCIDENT DATA

NUMBER OF ACCIDENTS

INJURY CLASSIFICATION

AIRCRAFT DAMAGES

AVIATION ACCIDENT

 

Aircraft   Category

Injuries

Severity

Classification

Rates

 

 

Type

Aircraft

# Accidents

# Fatal

# Eng Related

Pax

Crew

 

Injured

 

Fatal

 

Minor

 

Substantial

Total

Loss

# Acc 100k Hours

# Fatal Acc 100k Hours

# Fatal    1M Occupants

# Acc 100k Flt Stages

 

Single Eng.

6

2

1

6

1

7

5

0

3

3

2.18

0.73

1.98

0.56

 

Light Twin

1

0

0

0

0

0

0

0

1

0

4.68

0.00

0.00

1.54

 

Med. Twin

1

0

1

10

2

12

0

0

0

1

1.24

0.00

0.00

0.62

 

Heavy Twin

0

0

0

0

0

0

0

0

0

0

0.00

0.00

0.00

0.00

 

2005 Totals

8*

2

2

16

8

19

5

0

4

4

2.05

0.51

1.21

0.61

 

2004

10*

4

2

16

6

7

15

0

3

7

2.77

1.11

3.99

0.79

                                                * Note - There was 3 additional ditching in 2005 not recorded as an accident - all single engine power losses.     

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2005 GULF OF MEXICO OFFSHORE HELICOPTER ACCIDENT CAUSES/INFO

Power Loss, multi- cause
Tail Rotor

Tie-down

Proc.

Loss Control or Improper Proced.
Loose Cargo
Flight Into Terrain, Water (CFITW)
Fuel Mgmt
Obstacle Strike
Fuel Qual.
Weather non-CFIT
Unk
Pax Control or HLO Proced.

Helideck  Design or Size Issues

Fatalities Due To Engine Malf.
Helideck Other
Technical
Pilot Procedure Related
Single Eng
3
1
0
0
0
1
2
1
0
0
0
1
0
1
0
Light Twin
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Med. Twin
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Hvy Twin
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2005
2
1
0
2
0
0
0
1
0
1
0
1
0
0
0
99-04 Ttls
15
6
1
9
3
7
5
7
1
3
2
5
3
7
4

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FIVE YEAR GULF OF MEXICO OFFSHORE HELICOPTER ACCIDENT DATA

Number Of Accidents

Injury Classification

Aircraft Damages

Aviation Accident

 

Aircraft       Category

Injuries

Severity

Classification

Rates

 

 

Year

# Accidents

#

Fatal

# Eng Related

 

Pax

 

Crew

 

Injured

 

Fatal

 

Minor

Substantial

Total

Loss

# Acc 100k Hrs

# Fatal Acc 100k Hrs

# Fatal 1 M Occupants

# Acc 100k Flt Stages

 

2001

8

1

1

8

3

10

1

3

2

3

1.77

0.22

0.32

0.54

 

2002

6

1

1

1

2

2

1

0

4

2

1.49

0.25

0.21

0.38

 

2003

15

7

3

17

8

13

12

3

2

10

3.93

1.84

2.93

1.12

 

2004

10

4

2

16

6

7

15

0

3

7

2.77

1.11

3.99

0.79

 

2005

8

2

2

16

7

18

5

0

4

4

2.05

0.51

1.21

0.61

 

5 Yr. Avg.

9.4

3.0

2.2

11.8

5.2

10.2

6.8

0.4

3.6

5.2

2.40

0.79

1.71

0.69

 

 

Revision 2-17-06