Flight Safety Pty Ltd
October 2009
Safety Alert
News from Flight Safety Pty Ltd
In This Issue
Flight Safety Seminar review
Helideck lighting upgrades
New plane tracking systems
Why Air France 447 crashed
Pilots question airspeed sensor history
Helicopter locator beacons return
New avian radar system
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Dear Colleague,

Helideck certification under CAP 437 is immensely complex and, without doubt, one of the most demanding external audit processes. Having realised the safety and liability implications involved in a standalone approach to this exacting audit requirement,  Flight Safety approached the Helideck Certification Agency (HCA) in Aberdeen to explore mutual opportunities as a means of improving CAP 437 helideck inspection processes locally.

The resultant long term contractual arrangement that Flight Safety has entered into with the HCA, appointed as their local agents covering Australia, New Zealand, Malaysia and Indonesia has turned out to be immensely valuable in terms of access gained to the wealth of North Sea helideck operational experience and, significantly, HCA awareness training provided for ten of Flight Safety's auditors/inspectors. John Monaghan, the HCA operations manager and chief trainer  came out to Australia last year to present the course and participate in the Flight Safety annual Training Seminar held at the Hyatt Regency Hotel in Coolum on the Sunshine Coast.

The success of that Seminar followed through into this year's event held over the week of the 7th September 2009, which we review below.  From this group experience we have realised the immense value of these 'Think Tank' sessions and a decision has been taken to open this Forum to the industry with subsequent Hyatt Training Seminars.

In addition, Flight Safety now offers advanced Helideck Inspector awareness training through their subsidiary Helideck Certification company - Flight Safety Helideck Certification Pty Ltd.  The two day courses are arranged at venues globally, to suit client convenience, up to a maximum of ten attendees.

This edition also covers some recent technological developments in the areas of helideck lighting, tracking systems and avian radar, and an update on the Air France disaster investigation.

The November edition of the Flight Safety newsletter will address the first of a series of safety related, repetitive audit Findings - specifically, de-identified and generalised audit results involving widespread ALAR/CFIT (Approach & Landing Accident Reduction/Controlled Flight into Terrain) awareness training deficiencies.


Sincerely,

Colin Weir

Colin Weir, Managing Director
Flight Safety Pty Ltd
Flight Safety Seminar
held 7th - 9th September 2009
Flight Safety Seminar delegates 2009
This year's seminar brought together 22 delegates from various aspects of aviation: resource sector clients; service providers, regulators, the global non-profit Flight Safety Foundation, training organisations, and of course auditors; many delegates shared their perspectives with informative presentations.

Areas covered included: organisational accident analysis, helideck safety management, emergency response training, and the weighted, scored audit result. In addition, Flight Safety personnel from around Australia converged to receive specific training and exchange experience.

Brad Ogden, representing Woodside Energy Limited, said afterwards:

"...thanks again for inviting me to participate in this year's seminar, which I believe was a great success."

Flight Safety would like to sincerely thank all those who took time to attend the seminar, thereby contributing to its success.

Visit our Gallery page to see the official photos...
Lighting upgrades enhance North Sea helicopter safety
Helideck lighting
Helideck lighting development has proved to be one of the most fruitful areas of safety enhancement over the last decade and is hoped to lead to the widespread adoption of a new configuration from next year.

Research pinpointed three issues with helideck lighting schemes at the time: their use of yellow and white lights did not stand out from the rest of the rig lighting; the touchdown spot in the middle of the deck was effectively a "black hole"; and floodlighting used to illuminate the helideck was too bright, with even slight misalignment making things markedly worse.

UK CAA research manager David Howson says: "The science of visual perception is not fully understood so to some extent we have do this by empirical process."

The result has been an extensive series of flight trials over the last five years in which a design has evolved that is now receiving consistently strong reviews by pilots who have experienced it, or elements of it.

Further trial iterations over several years have resulted in a final configuration with green perimeter lights; a single, broken, yellow touchdown marker circle; and a green hollow-H for the touchdown point itself (see picture).

The CAA is planning an interim update to the CAP437 document, which specifies helideck standards.

Read full article at Flight Global >>
Plane-crash probe to urge new tracking system

Pacific Plane crashAn upcoming Transportation Safety Board (Canada) report into a deadly Pacific Coastal Airlines accident in August, 2008, will call for the increased use of new GPS-based flight-tracking systems capable of locating downed planes and survivors within minutes of a crash, company officials said.

Vince Crooks, Pacific Coastal's director of flight operations, said TSB investigators have expressed serious concern about the failure of the plane's electronic locator transmitter (ELT), a Transport Canada-mandated device designed to broadcast a radio signal when a plane goes down.

Last December, the TSB issued a three-page safety advisory on the Port Hardy crash focusing specifically on ELT failures and identifying GPS-linked satellite tracking systems as an option to improve "flight-following capability."

Between January, 2007, and December, 2008, the agency documented "30 of 97 occurrences" in which ELTs were damaged, destroyed or failed to activate, "resulting in a failure rate of about 31 per cent," the advisory said.

Pacific Coastal's new tracking system, made by Victoria-based Latitude Technologies, automatically broadcasts critical flight data via satellite directly to the e-mail accounts of senior airline company managers. "Data bursts" detailing a flight's exact co-ordinates, airspeed, altitude, fuel reserves and other data can be programmed to arrive every 10 seconds to every two hours.

Read full article at the Globe and Mail >>
The four reasons why Air France 447 crashed
Air France Airbus A330
The disaster of Air France Flight 447 was the result of a preventable mix of human and technical failures, according to a London law firm that is representing families of the victims:
  • The aircraft flew into an area of storms which other aircraft avoided by steering around them.
  • The pitot tubes (speed sensors on the front of the plane) suffered faults
  • There was a malfunction in the ADIRU, the three air data computers which feed information to the flight system and the pilots.
  • The pilots may not have had sufficient training to retain control of the malfunctioning aircraft.
"If any one of these issues had not happened to AF 447, the accident would not have happened," said said John Mahon, an Airbus and Boeing training captain, who is advising the law firm.

Read full article by Charles Bremner, Paris Correspondent for The Times >>
Pilots question airspeed sensors' troubled history
Pitot
In a related article, Associated Press reports that  Airbus knew since at least 2002 about problems with the type of pitot speed sensors used on Flight 447. But air safety authorities did not order their replacement until after the crash, which killed all 228 people aboard.

The pitot tubes made by French company Thales SA are vulnerable to blockage from water and icing. Experts have suggested that Flight 447's sensors may have iced over and sent false speed information to the computers as the plane ran into a thunderstorm at about 35,000 feet (10,600 meters).

The exact role the Pitot sensors played in the crash may never be known without the flight recorders, which have not been recovered and which have stopped emitting signals. Investigators insist sensor malfunction was not the cause of the crash, but many pilots think false speed readings may have triggered a chain of events that doomed the plane.

Several European airline pilots, including former Air France captain Gerard Feldzer, believe a reading of the messages suggests Air France pilots were suddenly forced to take manual control in near impossible conditions: a cockpit ringing with warning bells and flashing lights, some of them contradictory, with few clues to speed, altitude and nighttime weather conditions.

"It's very difficult when you are already experiencing turbulence in the middle of the night, to know what to do," said Feldzer, adding that the plane's automated warning system could have been issuing incorrect instructions. "It's very difficult to resist what you are being ordered to do because they are false orders."

Air France is now starting a training program for pilots on how to manage a Pitot malfunction at high altitudes of the type experienced on Flight 447. Previously, Air France had only offered simulator training for Pitot malfunction on take-off and landing.

Read on at Associated Press >>
Helicopter locator beacons return to North Sea

PLB
Personal locator beacons (PLBs) are set to be reintroduced for workers on helicopters flying offshore.

The devices were withdrawn after they were found to have interfered with rescue equipment after a Super Puma ditched into the North Sea in February.

Investigators of the February crash found that interference from PLBs carried by passengers had caused the "smart" long-range rescue beacons on the aircraft and life rafts to shut down.

Bob Keiller, chairman of the UK Oil and Gas Helicopter Task Group, which was set up to address helicopter safety issues, said: "Search and rescue operations rely on the powerful long-range rescue beacons to home in on accident sites.

"We were therefore concerned to learn that the weaker personal beacons, with a more limited signal range, had the ability to switch these off.

"Following an instruction from the CAA to the helicopter operators to stop carrying the personal beacons in "standby" mode in case they were accidentally activated and interfered with aircraft safety systems, the industry withdrew the personal beacons until a technical solution could be found. We have been giving this our urgent attention."

An interim Air Accidents Investigation Board (AAIB) report revealed that non-certificated - though legal - wristwatch personal locator beacons (PLB) routinely carried by oil workers caused the higher-powered, more capable electronic locator transmitters (ELT) carried by the pilots and on the dinghies to shut down.

This was due to a "smart" system in the ELTs designed to select a "master" beacon when they are in close proximity and to suppress the signal from the others in order to avoid confusing homing devices and save battery power. The result in the accident was that only the much weaker PLB signal was transmitted and no voice communications were available. Furthermore, the AAIB discovered that neither the pilots nor passengers realised they should extend the telescopic aerials of the ELTs to provide the maximum range.

Read full article on BBC >>

Related article at Flight Global >>
New radar revealed at Bird Strike Conference

Avian Radar
The ditching of a US Airways flight in the Hudson River earlier this year has highlighted the intractable problem of reducing bird strikes.

Professionals from all facets of aviation and wildlife management convened for the 11th annual Bird Strike North America Conference Sept 14-17 in Vancouver, British Columbia.

Accipter, which has avian radar systems deployed at New York's Kennedy and Chicago's O'Hare airports, will debut "the future of 360-degree 3-D Avian Radar surveillance at the conference", according to Accipter President and CEO Dr. Tim J. Nohara.

In addition to radar technology, there were presentations and displays from vendors on other avian mitigation techniques such as garlic oil coatings for grassy areas to discourage avian landings, lasers, acoustics, and landscaping.

Find out more about Accipter >>

Bird Strike North America Conference Papers archive >>
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