operation. In ships with more than one main engine in the same engine room, a separate sheet is maintained for each engine, but common entries are omitted from the record for the port engine. The watch supervisor enters the remarks and signs the record for his watch. The petty officer in charge of the engine room checks the accuracy of the record and signs his name in the space provided on the back of the record. The main propulsion assistant notes the contents and signs the record. Any unusual conditions noted in the record should be reported to the engineer officer immediately. GAS TURBINE OPERATING RECORD On  ships  with  gas  turbines,  bells  and  engine operating  parameters  are  logged  automatically  by computer. The system can produce printouts at regular intervals or on demand. The data comes from two line printers; one for the bell logger and one for the data logger. The bell logger prints bell signals and replies to those signals. The data logger prints all information other than bell signals. The bell or data logger can print both  kinds  of  information  if  one  of  the  loggers  is secured.  Most  ships  use  only  one  logger  at  a  time. Examples of bell and data logger printouts are logs for data on engine parameters, alarms, status changes, trends in operating parameters, and demand prints of any of the logs. DIESEL ENGINE OPERATING RECORD The Diesel Engine Operating Record, NAVSEA 9231/2, is a complete daily record for each operating propulsion  and  auxiliary  diesel  engine  in  the  ship. The watch supervisor writes and signs the remarks for his  watch.  The  petty  officer  in  charge  of  the  ship’s diesel engines checks the accuracy of the entries and signs the record in the space provided. The engineer officer notes the contents and signs his approval of the record daily. AC/DC  ELECTRIC  PROPULSION OPERATING RECORD The  AC/DC  Electric  Propulsion  Operating  Record, NAVSEA 9235/1, is daily record for each operating propulsion  generator  and  motor  in  ships  (except submarines) equipped with ac or dc electric propulsion machinery. A separate record sheet is used for each shaft.  Exceptions  are  ships  with  more  than  two generators or two motors per shaft, where as many sheets as required are used. Data is entered on the record and the remarks are written and signed by the Electrician’s Mate (EM) of the watch. The accuracy of the entries is checked by the EM in charge of the electric propulsion equipment and  the  electrical  officer.  Space  is  provided  on  the record  for  the  daily  approval  and  signature  of  the engineer officer. BOILER  ROOM  OPERATING  RECORD The  Boiler  Room  Operating  Record,  NAVSEA 9221/6 (fig. 2-4), is a complete record for each steaming firercom. Space is provided on the back of the record for   the   operating   data   of   all   fireroom   auxiliary machinery. Entries are checked for accuracy by the fireroom supervisor. The B division officer also checks and initials the record. The engineer officer checks the entries and approves the record daily by signing it in the space  provided  for  his  signature. ELECTRICAL LOG The Electrical Log, NAVSEA 9600/1 (fig. 2-5), is a  complete  daily  record  for  each  operating  ship’s service generator, Entries for the prime movers are generally  recorded  by  the  generator  watch  (MM). Electrical data are recorded by the switchboard watch (EM). Each signs the remarks made for his watch. The accuracy of the entries is checked by the EM in charge of the ship’s service generators. Both the M and E division officers check the record for accuracy and any  evidence  of  impending  casualties.  Each  officer initials the record to indicate he has checked it. The engineer officer notes the content and signs the record daily  in  the  space  provided. DISTILLING PLANT OPERATING RECORD There is a distilling plant operating record for each of the three principal types of distilling plants in use aboard  naval  ships.  The  records  are  (1)  the  Low Pressure  Distilling  Plant  Operating  Record,  NAVSEA 9530/3,  (2)  the  Flash  Type  Distilling  Plant  Operating Record, NAVSEA 9530/1 (fig. 2-6), and (3) the Vapor Compression   Distilling   Plant   Operating   Record, NAVSEA  9530/2.  Each  is  a  complete  daily  record maintained  for  each  distilling  plant  in  operation. Personnel of the watch record data and remarks in the record. The watch supervisor signs the remarks for his watch, and the petty officer in charge of the ship’s distilling plants checks all entries for accuracy and signs the record. The division officer (M or A, as applicable) reviews and initials the record. Space is provided on the 2-11