unserviceable. After filling in the appropriate columns, ensure each line in the report is mathemati- cally balanced. For example, columns B+C-D-E-F-G-H-I-J-K = L+M. All entries are in the check-sum-digit format. Paragraph 7. Enter narrative remarks, as appropriate. All GBIs are identified in this paragraph as well   as   column   C   of   paragraph   6.   All   LBIs   are identified by an entry in column J of paragraph 6 and a detailed explanation (including the date-time group) of the missing, lost, stolen, recovered (MLSR) report that was   submitted.   When   ammunition   is   missing,   lost, stolen, or recovered, Missing, Lost, Stolen Government Property, Reporting of, SECNAVINST 5500.4 (series), requires that a report be submitted. Paragraph 7 is used to  identify  activities  that  issued  and/or  received  the materials. When materials are reclassified, you should give  the  NALC  of  the  item  and  authorization  for  the reclassification.    This    paragraph    is    also    used    for reporting  items  accounted  for  by  serial  number,  lot number, or registration number. Issues To Aircraft Squadrons Aircraft   squadrons   are   not   CAIMS   reporting activities (except for sonobuoys). Therefore, all issues to   aircraft   squadrons   are   converted   by   CAIMS   to training  expenditures.  Ordnance  normally  loaded  and retained aboard aircraft (CADs) or retained in custody of the squadron (inert training ordnance) is reported as expended at the time of issue. Ordnance of this nature that is subsequently turned in by an aircraft squadron is reported as a receipt. For  ordnance  that  is  normally  unloaded  after  a mission  (bombs,  rockets,  missiles,  or  torpedoes),  no report of issues or expenditures should be made unless the  ordnance  was  actually  expended.  Squadrons  are responsible  for  advising  their  support  unit/activity  of the    ordnance    actually    expended    (by    expenditure category), returned, and/or retained. Upon notification of actual expenditures, the support unit/activity should submit the appropriate transaction report. Serial/Lot Item Tracking (SLIT) SLIT   is   required   for   air-   and   surface-launch missiles and boosters. SLIT provides for the complete tracking  of  certain  items  from  birth  to  death  by  their unique serial or lot number. Fleet   units   must   SLIT-report   onloads   from   or off-loads  to  CONUS  shore  activities.  They  must  also report   inter-ship   transfers   (including   FFT   material involving a shore activity), expenditures, and Condition code changes of all-up-rounds (AURs) and components.  SLIT  reporting  is  required  of  both  the receiving and issuing ships when an inter-ship transfer is  involved.  The  receiving/issuing  ship  must  address each other for information on ATR message submissions.  This  requirement  enables  each  ship  to verify  the  transfers,  correct  discrepancies,  and  submit appropriate   modified   ATRs   to   Naval   Ammunition Logistics Center. All items that require SLIT reporting are contained in TW010-AA-ORD-010/NAVAIR 11-1-116A, and are identified by material control codes B, C, and E. A few of the most common SLIT-reported items are discussed in the following paragraphs. AIR-LAUNCH    MISSILES.—Air-launch    mis- siles   (ALMs)   require   SLIT   tracking;   consequently, whenever  a  reportable  transaction  occurs,  appropriate entries must be made in paragraph 7 of the ATR. The serial number of an ALM is determined by the serial  number  of  the  leading  serialized  component  of the  missile  and  should  be  reported,  regardless  of  the ALM   configuration.   The   tracking   of   these   serial numbers should be reported from individual unassembled components up to an AUR. In   addition   to   the   missile   serial   number,   the maintenance due date (MDD) and the Type Maintenance   Due   code   (TMDC)   must   be   reported when  a  missile  is  removed  from  deep  stowage  to  a ready-service   locker,   or   when   a   missile   has   been captive-flown. To indicate either condition, a transaction report should be submitted initially for each removal or captive flight of a missile. The report should show  the  missile  serial  number,  MDD,  and  TMDC. After   the   initial   report,   it   is   unnecessary   to   make subsequent    reports    of    deep-stowage    removals    or captive flights on a specific missile. SURFACE  MISSILES.—The  issuing,  receiving, stowing,   and   reporting   of   surface   missiles   are   the responsibility   of   the   weapons   department   aboard aircraft    carriers.    Surface    missiles    aboard    aircraft carriers  are  part  of  the  ship's  point  defense  system. Surface  missiles  are  SLIT-reportable  items,  and  are reported in the same manner as discussed for ALMs. Other items that require SLIT reporting are warshot and exercise torpedoes and underwater mines. Additionally, Mk 75 DST modification kits and Mk 503 test sets require tracking. Therefore, the receiving and issuing activities must provide the Mk/Mod of each Mk 75  DST  modification  kit  and  the  Mk/Mod  and  serial 17-22