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Thread: A Fatal Error

  1. #1
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    A Fatal Error

    before the incident.

    EPIRB manufacturers around the world are urging owners to make sure their distress beacons are properly registered. The warning follows the loss of the scallop dredger Lady Mary and six fishermen on March 24.

    At the formal investigation into the sinking, a Coast Guard spokesman claimed that its first warning of the situation was an alert from an unreg-istered 406-MHz EPIRB, which was passed on from the NOAA SARSAT control center at 0707 on the day of the sinking. As is usual with non-GPS-equipped EPIRB alerts, the transmission gave two possible positions, but at 0715 a second satellite fly-by confirmed a position about 65 miles southeast of Atlantic City, New Jersey.

    By 0820 a rescue helicopter had located Lady Mary's empty liferaft, and by 0850 the helicopter was on its way back to base with Jose Arias, the sole survivor, and the bodies of two crewmen. But according to Arias, the scalloper went down long before the Coast Guard received the distress signal.
    a d v e r t i s e m e n t

    Arias told investigators that he was awakend at about 0500 by someone shouting that the boat was sinking and that he found himself in the water within a few minutes. His account was confirmed by Lady Mary’s automatic tracking system, whose last position report was transmitted at 0510, and by a Mayday that was picked up by another fishing vessel at about 0500.

    So why did the message from a 406-MHz EPIRB—one that was subsequently recovered, tested, and found to be in perfect working order—take so long to reach the Coast Guard?

    One particularly worrying aspect is the Coast Guard’s initial statement that Lady Mary’s EPIRB was “unregistered,” an allegation that was immediately refuted by the boat’s owner and by the NOAA decals on the EPIRB itself.

    As the inquiry progressed, it emerged that the beacon identification number—ADCD023C3542C01—had been wrongly keyed into NOAA’s database: the last four digits were recorded as 2001. A spokesman for NOAA explained to the inquiry that a signal from Lady Mary’s EPIRB was picked up by a high-orbiting geostationary satellite at 0540, probably within minutes of when the boat actually sank. If the beacon had been properly registered, he said, NOAA’s automated system would have kicked in and immediately provided the Coast Guard with details of the boat and her owner, who would probably have been able to confirm that Lady Mary was indeed at sea and given her approximate location.

    But that fatal error in the unlucky thirteenth digit meant that Lady Mary’s EPIRB instead showed up as “unregistered.” And as it was a basic EPIRB—one without an integral GPS—the geostationary satellite couldn’t tell where the signal had come from, so NOAA had no useful location information to pass on to the Coast Guard until two low-flying LEOSAR satellites picked up the signal.

    The Coast Guard has repeatedly stressed that registration isn’t just a legal requirement, but that it saves lives. The tragedy of this particular case is that a failure in the registration system—a typing error by a sub-contractor’s clerk—may have cost six lives. To register, renew, or check your EPIRB registration online, go to www.beaconregistration.noaa.gov.
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  2. #2
    I think Admin is going to let me have this space nautiduck's Avatar
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    Hey E-Guru is there a way to test the epirb to make sure they work and are sending a correct signal? Without just dunking it and getting in all kinds of trouble.

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    Nauti, Great question.
    Below you will find an excellent article put out by Noaa and the U.S. Coastguard about inspecting and testing your E.P.I.R.B

    Monthly EPIRB Inspection Procedures
    As Recommended by NOAA and the U.S. Coast Guard
    The following information has been developed by the NOAA SARSAT Office and the U.S. Coast Guard
    Office of Search and Rescue to provide EPIRB owners and maintainers a generic list of recommended
    procedures for conducting monthly EPIRB inspections. These inspection procedures are intended to
    provide general guidance and do not supersede the recommended procedures provided by the International
    Maritime Organization or by the EPIRB manufacturer. All owners and maintainers should follow the
    inspection and self-testing procedures of their EPIRB manufacturer accordingly.


    INTRODUCTION
    EPIRBs are subject to possibly the most
    demanding requirements of any shipborne
    equipment. Despite prolonged periods of
    continuous exposure to extreme weather
    conditions, with minimal maintenance attention,
    they are required to be ready to work without
    flaw, first time, in an emergency. EPIRB
    equipment design has developed to the point
    where exceptionally high effectiveness and
    reliability have become the norm, but such a
    demanding level of reliability can only be
    assured over a long period of time by a program
    of testing and maintenance which, although it
    need not be frequent or expensive, must be
    rigorously applied and conducted.

    For all compulsory vessels that are required to
    carry 406 MHz EPIRBs in U.S. waters (that is,
    all vessels over 300 gross tons, all commercial
    fishing vessels regardless of tonnage operating
    in waters greater than 3 nmi offshore, and all
    inspected vessels engaged in transporting 6 or
    more persons for hire regardless of tonnage)
    mandatory testing of a vessels’ 406 MHz EPIRB
    is required on a monthly basis.

    When inspecting and conducting the monthly
    test on an EP IRB it is important to
    exercise extreme caution so as not to produce an
    inadvertent activation. Many false distress alerts
    continue to be caused by human error during the
    testing and maintenance of EPIRBs and their
    ancillary devices, as well as through
    mishandling by inexperienced persons. Vessel
    inspectors, EPIRB manufacturers, and service
    engineers report a worrying number of cases
    where equipment has been found incorrectly setup,
    or poorly maintained. This is of particular
    concern since it is unlikely to be apparent to the
    crew that the equipment may not work in an
    emergency.
    Throughout the inspection and testing process,
    great care must be taken to avoid the
    transmission of a false distress alert.


    INSPECTING YOUR EPIRB
    Inspecting your EPIRB is one of the most
    important tests you can provide to your vessel’s
    suite of safety equipment. The EPIRB is
    exposed to the elements at all times yet must be
    able to perform properly at a moment’s notice.
    For that reason, your EPIRB and its ancillary
    devices should be inspected monthly to ensure
    that they are always ready to work.

    I. Inspection of the EPIRB Housing
    The first test of an EPIRB should be to inspect
    the unit housing the EPIRB. 406 MHz EPIRBs
    should be fitted in an unobstructed 'float free'
    mounting and positioned away from any
    overhead obstructions to reduce the risk of the
    EPIRB becoming trapped when released. In
    such a mounting the EPIRB should be held in
    place by a Hydrostatic Release Unit (HRU), an
    Automatic Release Mechanism (ARM) or a
    manual release bracket. In the case of the HRU,
    it is designed to sense the increasing water
    pressure if a vessel sinks and at a predetermined
    depth (usually 3-5 meters) the HRU releases the
    mount, allowing the EPIRB to float to the
    surface.

    Category I vs. Category II Beacons
    If the EPIRB is a Category I beacon, the
    mounting unit will allow the EPIRB to switch
    itself on as it is released, so it will operate
    automatically if the vessel sinks.
    Category II EPIRBs differ in that they are not
    released automatically via the HRU. They
    activate manually or thru immersion in water.

    II. Expiration Date
    If the EPIRB is retained in its mount or casing
    by an HRU, then the expiration date or service
    date label on the HRU should be noted and
    clearly visible. These units must be replaced
    every 2 years including any associated plastic
    bolts, rods, springs, and/or spacing washers.
    The HRU should be free of any signs of
    corrosion, cracking, water ingress, etc. Any
    damage should be repaired in accordance with
    the manufacturers procedures, replaced.

    III. EPIRB Lanyard
    Presence of a firmly attached lanyard in good
    condition should also be verified. The lanyard
    should be neatly stowed, and must not be tied to
    the vessel or the mounting bracket.
    IV. Checking for Physical Damage
    The EPIRB should be examined thoroughly for
    any physical damage. If there appears to be any
    damage, corrosion, cracking, water ingress, etc.
    the EPIRB should be replaced with a backup
    immediately. In turn, this replacement EPIRB
    should meet each of the inspection and testing
    criteria listed here as well.

    V. Proper Registration
    An inspection of the EPIRB registration decal
    from NOAA should also be inspected for all
    U.S.A-coded EPIRBs. The registration decal
    should be properly placed on the EPIRB and
    clearly visible for U.S. Coast Guard inspectors.
    If there appears to be any damage to the decal,
    NOAA should be notified immediately. U.S.
    law requires that all 406 MHz EPIRBs must be
    properly registered with NOAA. Every two
    years NOAA will seek an update of the
    registration information to ensure accuracy.
    However, if at anytime the registration
    information does change (such as a new phone
    number, new address, new emergency contact,
    etc.) NOAA must be informed immediately.

    VI. EPIRB Battery
    The expiration date of the EPIRB's battery
    should also be inspected. This is usually given
    on the EPIRB manufacturer’s label or on another
    plate affixed to the EPIRB. Battery life for most
    EPIRBs is 5 years. The battery must be
    replaced on or before the expiration date or if
    the EPIRB has been used in an emergency
    regardless of the length of time. EPIRB
    batteries are designed to operate the beacon for a
    minimum of 48 hours and therefore must always
    be fully charged.

    SELF-TESTING YOUR EPIRB
    After the EPIRB has been properly inspected, a
    self-test of the EPIRB can be conducted
    following the instructions provided by the
    EPIRB manufacturer. It is important that the
    manufacturer’s instructions be followed to
    ensure that your EPIRB is working properly and
    to avoid an accidental activation.

    VII. Self-Test Switch
    Most EPIRBs have a visible test switch that is
    usually spring loaded so it cannot be left on
    inadvertently and thus reduce the life of the
    battery. A light will indicate that the test circuits
    are operating correctly. Sometimes this light
    will also activate the strobe light. It is
    recommended that the self-test switch be held
    for no more than 2 flashes of the strobe light or
    no longer than 1 minute after the first self-test
    mode burst transmission.
    When operating a 406 MHz EPIRB self-test, the
    EPIRB is allowed to radiate a single burst which
    is specially coded so that it is ignored by the
    COSPAS-SARSAT system. The EPIRB must
    never be tested by actual operation. If it is
    accidentally activated in the transmit mode, then
    it should be turned off at once and the false alert
    cancelled by calling the nearest U.S. Coast
    Guard Station and have them contact the nearest
    Rescue Coordination Center.

    VIII. Log-Keeping
    For compulsory vessels all EPIRB tests must be
    logged. Usually this is recorded in the GMDSS
    Station Log which requires compulsory vessels
    to conduct and record tests of the vessel’s
    GMDSS system on a routine basis. The
    GMDSS Station Log is required under U.S.
    Code of Federal Regulations 47, Part 80.


    IMPORTANT!
    When used in an emergency, some EPIRBs must
    be floating in the water for their antenna to
    operate at peak efficiency. The EPIRB
    manufacturer’s instructions will indicate if the
    EPIRB should be operating afloat or if it can be
    kept inside the liferaft. In either event, once the
    EPIRB is activated in a distress situation leave it
    switched on until you have been rescued or until
    the batteries are exhausted. There have been
    many cases reported where people kept turning
    the EPIRB on and off in an attempt to prolong
    the life of the battery. Doing this could actually
    be a detriment to the EPIRB and the satellites
    that are trying to determine your position. Once
    the EPIRB is turned on, leave it on…the
    satellites will hear you!


    FOR MORE INFORMATION
    For more information on specific EPIRB testing
    and inspection procedures please contact your
    EPIRB manufacturer.
    For more information on EPIRB registration and
    the Search & Rescue Satellite-Aided Tracking
    (SARSAT) system, please visit NOAA’s
    SARSAT website at: www.sarsat.noaa.gov
    Or call 301-457-5678 or toll-free at 1-888-212-
    7283.
    Additional information may also be found at the
    U.S. Coast Guard’s Office of Search & Rescue
    website at: www.uscg.mil/hq/g-o/g-opr/sar.htm
    or by calling 202-267-1943
    Last edited by SportFishStaff; 10-12-2009 at 10:42 AM.





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