This section is also used for engine identification and subsequent failed part reporting against the identified engine. WORK UNIT CODE block. Contains the 1-, 3-, 5-, or 7-digit WUC that identifies the system, subsystem, or component on which work is being performed. Three-digit WUCs such as 030 and 049 are also used on a MAF to document a conditional inspection or a preservation or depreservation action. ACT ORG (ACTION ORGANIZATION) block. Contains the ACT ORG code of the organization that performs the maintenance. TRANS (TRANSACTION) block. Contains a two-character numeric transaction code that describes the type of action to be accomplished on the item or component. MAN/L (MAINTENANCE LEVEL) block. Uses a numeric 1, 2, or 3 to describe the level of maintenance that is being performed (not necessarily the maintenance level that is assigned to the activity). ACT TA (ACTION TAKEN) block. Contains a one-character alpha or numeric code to describe the action that was taken to correct the discrepancy. MAL CD (MALFUNCTION DESCRIPTION CODE) block. Contains a three-character alphanumeric code to best describe the trouble or cause of trouble in the system or component that is identified in the WORK UNIT CD block. ITMS/P (ITEMS PROCESSED) block. Specifies the number of times the action that is indicated in the action taken block was performed against the item that is described in the WORK UNIT CD block. MAFs that are submitted for close outs by work centers at the end of or during a reporting period should enter 0 in the items processed block. MAN HOURS block. Documents the number of man-hours that were expended to correct a discrepancy (in hours and tenths of hours). ELAPSED M/T (ELAPSED MAINTENANCE TIME) block. Reports the number of clock hours that were involved to make the repair (in hours and tenths of hours). For example, if three people worked together for 2.5 hours to make a repair, the total man-hours that were expended is 7.5 hours, and the elapsed maintenance time is 2.5 hours. TECHNICAL DIRECTIVE INFORMATION section. Contains the 12- or 13-character code to identify the specific technical directive that has been incorporated or is being incorporated in the type of equipment that is identified in the Type Equipment code block. This section is divided into the interim, code, basic number, revision, amendment part, and kit fields that are completed as needed. Interim block. An X indicates an interim type directive; otherwise this field is left blank. Code block. A two-character code denotes the type of directive to be incorporated. For example, 50 denotes an airframe change and 74 denotes an airframe bulletin. Basic No (number) block. A four-digit field identifies the basic technical directive. If the basic number is less than four digits, a zero or zeros are used to precede the number as necessary to complete the four-digit field. RV (revision) block. A on-digit alpha character denotes the specific revision of the basic technical directive. Left blank if not applicable. AM (amendment) block. A numeric one-digit character identifies the number of amendments of the basic technical directive. Left blank if not applicable. Part block. A two-digit alphanumeric character of the basic directive. Left blank if not applicable. Kit block. A two-character alphanumeric number of the specific kit to be incorporated. If no kit is required, 00 is entered in this field. TYPE EQUIP (TYPE EQUIPMENT CODE) block. Contains a four-character code to describe the end item on which work is being performed. BU/SER NUMBER (BUREAU/SERIAL NUM- BER) block. Contains the bureau number of the aircraft or serial number of the equipment or end item on which work is being performed. If more than six digits, only the last six digits are used. A 0 is entered in this block when a MAF is used to document work on a group of like items (jacks, stands, common aeronautical equipment, or items that are not identified by bureau/serial number). 4-15