M/V SHEAR MADNESS
ABNORMAL EVENT REPORT – LIGHTING STRIKE 25 AUG 11
This document includes both a detailed report regarding circumstances surrounding the lightning strike to M/V SHEAR MADNESS which occurred on 25 Aug 11, provides an initial ( very preliminary) damage assessment and a subsequent detailed damage assessment. It should be noted that detailed assessment of some systems were not possible because of related system failures and in some cases outside expertise is required for detailed assessment by qualified technician(s).
Background
On 25 Aug 11 a cold front with imbedded severe thunderstorms was reported approaching Colonial Beach (where M/V SHEAR MADNESS was berthed alongside a floating peer at Colonial Beach Yacht Club Marina). This weather activity was not associated with the subsequent hurricane (Irene) that passed through the area on 27/28 Aug 11.
Due to concerns over the impact of lightning strikes and severe weather shore power was removed from the boat and boat electrical system operation was minimized immediately prior to frontal passage. The boat was well secured to the floating dock with multiple lines/fenders and all non-essential equipment, awnings, and hardware removed (in preparation for the approaching hurricane).
At the time of the strike all engines and generators where secured and the boat was operating with minimal electrical load off the battery (240/120v supplied by the online series stacked Trace inverters). Navigation and Communication systems were up monitoring the approach of the front. Two were on watch in the Pilot House (PH) when the lighting strike occurred at approximately 1730hrs.
Incident
Prior to the strike isolated lighting was observed in the area, however, the strike which occurred at approx. 1730 occurred prior to the passage of the main front. The strike appeared to be associated with an isolated prefrontal CB cell that passed directly over the marina.
At the time of the strike one crew was scanning the area for flotsam with the binoculars. This crew member was momentarily disoriented by the severe flash and associated crack (very loud) that ‘appeared’ to occur inside the bridge. Having ascertained that the crew was not physically harmed, the captain initiated an immediate damage assessment following the strike.
Initial Indications
An initial damage assessment was conducted of all compartments to assess damage. The boat appeared to have suffered a total power failure. Burning odor was detected in the PH, Salon, and Engine Room. No fire indications were evident and all systems appeared to be offline (off). Total power loss to all electrical systems was observed (including all electrical instrumentation on all 24, 120 and 240 electrical load panels) and the inverters were offline. No leaking bilges or fittings were initially detected. An external boat inspection was not conducted for approximately one hour due to lighting strike hazard. When the external inspection was conducted a lighting strike of the port forward whip antenna located on the Fly Bridge (FB) hardtop was confirmed with associated structural and cosmetic damage to the surrounding structure (the antenna was totally destroyed with debris blown onto all decks and burn damage is evident on the hardtop canopy and stainless structure) – ref pictures.
After the initial inspection confirmed the vessel was not in immediate danger, the captain initiated a methodical inspection of critical systems and attempted to return power to the boat and essential systems (monitoring all systems in the process in order to confirm satisfactory operation). This required all power sources to be shutdown, including the battery bank, and commenced with the deliberate application of 24V battery power to the boat, reconfiguration and checks of inverter operation, followed by AC power startup and finally shore power 1 and 2 application. Following resumption of essential systems a more detailed boat inspection was initiated.
Initial Inspection Observations
The outcome of initial post lighting strike inspections is summarized as follows. Operation of systems detailed and all other boat systems needs to be confirmed by a qualified technician in order to fully assess damage. Further methodical inspections and operation of all systems needs to be conducted by the crew over subsequent days to confirm status of all systems. It is also recommended that an external hull inspection be conducted in order to determine the location and condition of the discharge exit point.
Initial Damage Assessment:
- All electrical AC and DC systems knocked offline
- NAV PC (used to monitor approach of front) and associated systems knocked offline and now unserviceable.
- Comms PC and related boat comms network and associated systems knocked offline and now unserviceable.
- 24V hydraulic alternators (which were not in use at time of strike) found to be source of burning smell in engine room and measured at 147 and 150 deg. F at least two plus hours after the strike (note it was initially difficult to determine source of burning odor).
- Hydraulic fluid leaking from solenoids in vicinity of hydraulic alternators and indications of hydraulic pipe and gauge damage.
- Selected 24V and 120V lighting systems throughout the boat unserviceable.
- Entertainment system in salon unserviceable (Tuner, Direct TV, Air TV, Amp, Logitech control).
- PH Engine Room Sea fire system indicator temporarily knocked offline by strike – must be checked.
- Electrical systems stabilized and preparation for Hurricane continued.
Detailed System Inspection Log – 29 Aug
It should be noted these initial tests were of limited nature and when dealing with electronics we are subject to intermittent errors that the hardest to find. During the test we noted some systems that first glance appeared operational but then during use failed. We expect additional system failures over the next couple of months as we use systems full time.
Bilge Pumps
Bow, Forward and Amidships pumps and lights working
PT & STB head lights & 24V head vacuum pump working
FWD Machinery Space
Main fresh water pump and UV currently operational
Hot water low element currently operational
Hot water High element currently operational
Black water main pump out currently operational
Grey water pump out currently operational
Main house fresh water pump currently operational
Back up fresh water pump failed – Continues Run
FWD machinery space bilge blower currently operational
FWD machinery horn compressor pumps currently operational
Horn test currently operational
FWD machinery space fluorescent lighting space currently operational
24V backup vacuflush pump currently operational
Battery Deck
HYD ALT fuses removed due to lightning strike short/overheat on the HYD ALT
Battery bank currently operational, but requires load Testing
Battery deck sea fire system requires testing
Aux battery charger currently operational
Battery & Tank deck fluorescent lighting currently operational
Port Cabin
All lights currently operational
Blower fan currently operational
Head exhaust currently operational
Head outlets currently operational
All outlets currently operational
TV Not Operational
DVD Untestable – but has power
A/C Currently operational
Cabin phone rings but random intercom no phone – Not Operational
STBD Cabin
All lights currently operational
Blower fan currently operational
Head exhaust currently operational
Head outlets currently operational – (after resetting UVI)
All outlets currently operational
TV Not Operational
DVD Untestable – but has power
Cabin phone rings random intercom no phone – Not Operational
Laundry Deck
2 x courtesy lights currently operational, 3 Not Operational
24v lights 2 currently operational, 1 Not Operational
Washing machine currently operational
Dryer currently operational
Vacuum cleaner & system currently operational
Pilot House
FWD looking sonar Not Operational
2100 series radar Not Operational
Satellite GPS compass Not Operational
AIS Not Operational
NAV PC Not Operational
Weatherworks Not Operational – tbc
All NAV PC/UPS associated systems Not Operational
NAV net system power up, but does not display essential data (SOG, COG, position, depth, and log).
1953 radar appears currently operational, plotter function appears currently operational
GPS & NAV source selections unable to be tested
VHF 1 Not Operational
VHF 1 & 2 and remote mike operations unable to be tested
SSB Not Operational
Seatel Antenna appears currently operational
Hailer speaker operation unable to be tested
Hydraulic system control unable to be tested
Stabilizers Not Operational
SAT phone Not Operational
Wipers x 5 – Port currently operational, wipers 2-5 speeds 2&3 working but speed 1 Not Operational
Wiper washing currently operational
Engine room sea fire system erroneous indications, reset requires system test by expert
Lazaret sea fire system will not self-test requires system test by expert
Forward sea fire system requires test requires system test by expert
All high water alarms require testing
STBD fresh water tank level display erroneous
DDEC (6 units) displays Not Operational
Graywater systems display level suspect, auto pump out suspect
Blackwater systems Not Operational
6 x DD Throttle gear control Not Operational (some appear partially serviceable)
Five bow and Stern thruster controls unable to be tested
Wind instruments Not Operational
Auto Pilot 1 partially currently operational – Continues pump operation – should stop in “Standby”
– High speed 1 unable to tested
Auto Pilot 2 appears Not Operational – comm failure with “AC/XX”
– High speed 2 unable to test
AP27 appears to operate currently operational with Auto Pilot 1 only (failed Auto Pilot 2)
Weather fax unable to be tested
Depth sounder Not Operational
Binnacle compass needs to be check and recalibrated
NMEA amplifiers and distribution needs to be tested
Pilot House and Bridge phone intercom Not Operational – Phone system through out vessel not operating correctly. Rings on intercom, works randomly, phone calls out no, calls in rings, but cannot talk.
COMMS PC/UPS including all associated systems Not Operational
Printer unable to test
Ships Wave WIFI Not Operational
Ships LAN Not Operational
Panasonic phone Not Operational (see note above)
Telluler/Cellar system partially currently operational – voice outgoing only (reference Panasonic phone system).
Tellular data connection to be tested once Comms PC corrected.
SAT TV currently operational (but not salon)
Air TV Not Operational
Pilot house fan currently operational
Pilot house side lights currently operational
20KVA appears currently operational
Ships battery control system currently operational – ability to isolate 4 banks operational
33KVA appears currently operational
PT windlass failed local control and remote control Not Operational
STBD windlass requires hydraulics for test – electrical control system failed
CCTV system and distribution system Not Operational
Water maker unit 1 tested for flush only – currently operational
Water maker unit 2 Not Operational (local and remote control heads failed Flush) Unit starts low pressure pump – incorrect.
Vacuum cleaner system currently operational
HYD systems: PT engine, STB engine, Alt 1 & 2, windless, emergency bilge pump, anchor wash pump, provide erroneous control panel indications, unable to test operation of hydraulic systems
Engines – no display, unwilling to test start sequence, waiting expert advice. No ability to monitor engine after start.
12v battery charger and battery appear currently operational but require load check
RD30 operates but no data – tbc
Link 10 currently operational
Outlets currently operational
24v spot lights above settee Not Operational
24v lights overhead Not Operational
24v red lights overhead currently operational
24v spot light currently operational
Head & lighting currently operational
Head exhaust blower currently operational
12v outlets currently operational
A/C partially operationally – Cooling but set temp not responding – appears to operate in open only mode.
Fly Bridge
NAV Net #1 system Not Operational
DDEC Displays Not Operational
Monitors – tbc
VHF 2 Not Operational
Wind instruments Not Operational
Fridge currently operational
Salon
12v lighting Not Operational
12v spots Not Operational
110 lighting currently operational
110 outlets currently operational
TV extension retraction currently operational
TV – tbc
No Direct (SAT) TV, no AIR TV
No FM system
DVD power on, but unable to test
Logitech system unable to test
Tuner/Amplifier Not Operational
Sound system unable to test
Vacuum system currently operational
Phone system Not Operational
Outlets currently operational
New Dell Laptop intermittent startup and keyboard issues.
Galley
Range, hood & light currently operational
Microwave currently operational
Instant hot water currently operational
Garbage disposal currently operational
Dishwasher currently operational
Galley outlets currently operational
24v light x 1 Not Operational , rest currently operational
2 x Freezers currently operational
Ice maker Not Operational
Fridge currently operational
Garbage compacter appears currently operational
Remote mike unable to be tested
STBD Entrance
Main electrical switchboards all voltage/amp frequency Not Operational for all services. (All electrical instrumentation unserviceable (all load panel voltage, current, and frequency indications (LED displays) appear to be permanently disabled.))
Remote Inverter Panels Not Operational
Main Inverters Currently Operational but were knocked offline/out by strike
Owner’s Cabin
Lighting currently operational
Head & lights currently operational
4 x courtesy lights currently operational, 1 x Not Operational
Phone Not Operational
Outlets currently operational
Head & exhaust fan currently operational
1 x closet light Not Operational
2 x closet lights currently operational
TV currently operational
AIR TV unable to be tested
No NAV PC feed to owner’s cabin
DVD Not Operational
A/C Not Operational
Independent fan – operational, but no longer rotates.
Skipper’s Cabin
Head & lights currently operational
Head & exhaust fan currently operational
Courtesy lights currently operational
Lights currently operational
All engine, generator, house 24v battery parallel switches to be tested
Outlets currently operational
Grey sump currently operational
All lights currently operational
NAV Net unable to be tested
AIR TV unable to be tested
Phone Not Operational
12v under floor lights currently Operational
Engine Room
Main engines Not Operational to be tested by experts
Fuel transfer #1/2 currently operational
Bilge high water not tested
Bilge shaft pumps Currently operational
33KW gen operational
Fuel water sensor alarm to be tested – How?
Engine room dampers currently operational
PT & STBD inlet fans currently operational
Exhaust Fan currently operational
Engine room phone Not Operational
STBD engine bilge pump currently operational
PT engine bilge pump currently operational
Main engine bilge pump currently operational
Fuel primer pump currently operational
3 engine outlets currently operational
Water Makers unable to test the high rate sand filter
Water maker unit 1 currently operational
Water maker unit 2 Not Operational (local and remote control heads failed)
Davit Not Operational – will not activate 240 switch on, no power to control head.
8 AGM (2 each) Engines and Generators – load tested.
Cockpit
BBQ currently operational
Outlets currently operational
Winches currently operational
Lazaret
Outlets currently operational
Freezers currently operational
Isolation boost currently operational
Galvanic isolate needs to be tested
Shore power switching needs to be tested
Shore power breaker #1 tripping frequently.
Isolation transformer needs to be tested
Sea Fire system needs to be tested
Chiller 1 Error Fault – Chiller 1 Low Loop Temp.
Kabola Heater – Requires cold weather to be test.
Dive Compressor – Cannot test until board sorted.
Tender Deck
Fuel pump currently operational
Outlets currently operational
2 – six person Switlik Liferafts (concerned about EPIRB
Primary EPIRB
1 15 HP Yamaha for inflatable Tender
Tender
VHF – Operates, but very poor reception.
Bilge Pump – Currently operational
Nav Net – Currently operational
Depth – Unable to test
Gauges – Currently operational
Engines – Unable to test 2 60 HP Yamaha outboard on Tender
Outside Lighting
Foredeck – all lights operational
Courtesy
– foredeck 1 x not operational
– Fly bridge no courtesy
– Cockpit 6 x courtesy not operational
Searchlight – operational both Pilot House and Fly Bridge
Navigation – all lights operational, including stern light
Fly Bridge canopy lights operational
Tender Deck – all lights operational
Cock pit canopy lights – 3 x operational, 1 x not operational
Note: Have been unable to determine strike exit point!
#1 by Anonymous on June 18, 2012 - 6:18 am
Kathy.. This was an excellent assessment of the boats damage… I suspect that this was an insurance requirement. I just read your Bahama excerpt… you guys recovered well from your misfortune… safe travels.
Jeff
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