INVESTIGATION

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INVESTIGATION

• LESSON TOPIC 1.1

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Enabling Objectives

• Identify the need for principles of, and
  equipment required to investigate for fire,
  flooding and structual damage IAW NSTM 079 VOL 2
  and NTTP 3-20.31, COMNAVSURFORINST 3541.1, and
  NSTM 555.
• Identify proper procedures for investigating and
  safely entering watertight closures
  IAW NSTM 079 VOL 2 and NTTP 3-20.31,
  COMNAVSURFORTINST 3541.1, and NSTM 555.

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Purpose of Damage Control Investigation

• To investigate and provide an orderly relay of
  vital information from station to station
• Allows repair teams not at the scene of the
  damage to evaluate ships capabilities and take
  corrective action accordingly

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Damage Control Investigation

• When to Investigate?
• Fire
• Flooding
• Collision
• Any type of damage

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Types of Investigations

• Preliminary Investigation
• Report the obvious damage!
• Fire
• Smoke
• Flooding
• Loss of Power
• Ruptured piping, damage to fittings
• Holes in decks or bulkheads
• Drop in pressure gauges

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Bulkhead Repairs
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Sagging Overhead
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Hot Spot on WTD
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Panting Bulkhead / Warped Bulkhead
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Charlie Fire on Switchboard
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Drop in Pressure Gages
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NOTE These are symptoms of dangerous condition
and prompt remedial action must be taken if the
ship is to survive
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Types of Investigations

• Secondary Investigation
• Report the unseen or hidden damage!
• Severed electrical cables
• Cracks and split seams
• Leaking stuffing tubes

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Types of Investigations

• Secondary Investigation Continued
• Fully detailed structural reports must be made at
  this time
• Note- Investigators reports will have a direct
  impact on the action to be taken to localize and
  control damage

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Investigator Requirements

• KNOW YOUR SHIP!!!
• Start learning your ship the day you report
  onboard
• Learn your ships systems and fundamentals
• Complete your PQS involve yourself with training

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Investigator requirements on Shipboard
Systems

• Compartmentation
• Firemain
• Fuel
• Fresh Water
• AFFF
• Fire Fighting Systems
• Halon
• CO2
• AFFF

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Principles of Investigation

• Thoroughly
• Look for all damage, hidden or unseen
• Cautiously
• Be alert, wear an OBA/SCBA
• Report
• Location
• Type and extent of damage
• Repeat
• Until properly relieved, until the emergency is
  over

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OBA with audio projection set or SCBA
Fire finder
Wifcom
Battle helmet
Rubber gloves 7500 volt and leather gloves
shell
Dogging wrench
Flashlight
wrench-adj 15
T Wrenches 3/8,1/2,3/4
Tape sounding 50ft 2ea
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Investigator Kit and Equipment

• Continued Investigator kit
• Tool bag, Belt
• Message blanks/ ball point pens, grease pencils
• Spare OBA Canisters

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Investigating Watertight Closures and Fittings

• (1.) Check for heat
• Use the Fire Finder
  
  if ship is equiped.
• If Not use back of hand
  approximately
  
  ½ inch from surface.
• (2.) Check for flooding
• Look for condensation on door
  or bulkhead. Water on deck.

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Investigating Watertight Closures and Fittings

• (3.) Check for pressure/vacuum
• Loosen and shake WT closure
• Never loose control
  of
  closure or fitting
• (4.) To open a WTD with
• individual dogs, open the
  
  hinge side first.

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Investigating Watertight Closures and Fittings

• (5.) To open a scuttle turn hand wheel a ¼ turn,
  shake and continue until scuttle is open.
• ALWAYS USE CAUTION UNTIL THE COMPARTMENT OR
  FITTINGS ARE SUSPECTEDTO BE SAFE TO CONTROL THE
  SPREAD OF DAMAGE

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Reporting Procedures

• 1. Prompt reports are essential.
• 2. If any casualty is detected while
  investigating, the following actions should be
  taken.

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FIRE

• 1. One investigator notes vital information to
  include compartment number, frame numbers, and
  nature of the casualty
• 2. The investigator then reports information to
  repair station and when possible the On Scene
  Leader
• 3. The other investigator remains at the scene
  and initiates fire fighting efforts when
  practical, or establishes/maintains Fire/Flooding
  boundaries

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Flooding

• 1. Same as Fire. Report it!
• 2. One investigator remains at the scene and
  secures the compartment by checking all
  watertight fittings when practical. Sets
  boundaries

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Reporting ProceduresContinued

• When relieved by fire party or the repair party,
  the investigators return to their investigating
  duties.

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Summary and Review

• Purpose of Investigations
• When to investigate
• Types of investigation
• Investigator Requirements
• Principles of investigation
• Equipment
• Investigation of WT closures
• Procedures for reporting