conducting casualty control drills is authorized by the commanding officer, the engineer officer must prepare a drill plan which provides for the train- ing  desired.  Careful  preplanning  and  sequencing of events is mandatory. After the proposed drill plan is approved by the  commanding  officer,  the  designated  ECCET personnel meet and make sure that each member of the team understands the procedures and the sequencing of events. In preparing the drill plan, consideration is given to the following: 1. General condition of the engineering plant. 2.  Machinery  and  safety  devices  out  of  com- 3. Length of time set aside for drills. 4. State of training of the watch section. 5. Power to be provided to vital circuits. mission. Within  the  constraints  of  the  items  listed above,  first  priority  on  drill  selection  is  given  to boiler casualty drills and propulsion space fire drills in that these drills represent the greatest danger and involve the largest number of propul- sion plant watch team personnel. Second prior- ity is given to lube oil system casualties because of  the  inherent  danger  to  main  and  auxiliary equipments  that  these  casualties  represent.  Third priority is given to other main engine casualties. In selecting drills, the engineer officer must give emphasis to the development of watch team pro- ficiency  in  handling  priority  one  type  casualties. Normally, ECCET members arrive on station shortly before the drills commence and ensure that communications are established throughout the plant. With the officer of the deck’s (OOD’s) per- mission, the drill initiator imposes a casualty in accordance with the drill plan. Within the bound- aries of safety to personnel and equipment, drills are  conducted  as  realistically  as  possible  and simulations are kept to an absolute minimum. Any  time  a  hazardous  situation  develops,  ECCET members assist the watch section in restoring the plant to the proper operating parameters. Addi- tionally, the ECCET members complete a drill critique form during the course of the drill. As soon as possible following the drill, a cri- tique is conducted. It is attended by personnel of the applicable watch section, the ECCET, and the engineer officer. The ECCET leader gives the finding for the drill and, in the case of unsatisfac- tory  drills,  provides  the  reasons  for  that  finding. All other ECCET members then read their drill critique form. Drills are evaluated as satisfactory or unsatisfactory by the ECCET leader, based on a review of the critique sheets prior to the cri- tique. The following deficiencies form a basis for a finding of unsatisfactory for a drill: 1.  Loss  of  plant  control  by  the  EOOW  or space supervisor when he is either unaware of the status of the plant, or unable to restore the plant to  a  normal  operating  condition  utilizing EOSS/EOCC or other promulgated casualty con- trol procedures. 2. Safety violations which cause a hazard to personnel  or  may  result  in  serious  machinery derangement. 3. Significant procedural deficiencies which indicate a lack of knowledge of the proper pro- cedures  to  be  followed  in  correcting  a  casualty. CORRECTION AND PREVENTION OF CASUALTIES The speed with which corrective action is ap- plied to an engineering casualty is frequently of paramount importance. This is particularly true when  dealing  with  casualties  which  affect  propul- sion  power,  steering,  and  electrical  power  genera- tion and distribution. If casualties associated with these functions are allowed to spread, they may lead to serious damage to the engineering installa- tion, a damage which often cannot be repaired without  loss  of  the  ship’s  operating  availability. Where possible risk of permanent damage exists, the commanding officer has the responsibility for deciding whether or not to continue the opera- tion  of  the  equipment  under  casualty  conditions. The  operation  of  equipment  under  casualty  con- trol can be justified only where the risk of even greater damage, or loss of the ship, may be in- curred by immediately securing the affected unit. Whenever there is no probability of greater risk,   the   proper   procedure   is   to   secure   the malfunctioning unit as quickly as possible even though  considerable  disturbance  to  the  ship’s operations  may  occur.  Although  speed  in  control- ling a casualty is essential, action should never be  undertaken  without  accurate  information, ENGINEMAN  1  &  C 9-4