Use this tab to enter general information for a modification. The following table shows information for the valid modification statuses:
| Modification Status | Description | 
| Preliminary | At the creation of a modification revision, it is automatically set to the Preliminary status. At this stage, you can enter or modify all the details for your modification revision. Alternatively, you can delete a modification revision that exists in this status. | 
| Active | The assigned serials can now comply with your 
	modification revision. Note: Only one revision of a modification can 
	be in the Active status at any given time. When the modification revision is 
	activated (1) you cannot delete this modification (2) only certain details 
	can be updated for the modification (through the  Modify Active 
	Modification assistant). The details that can be update are, 
	modification category, days forewarning, duration workshop and the 
	rescission date. Furthermore, if your modification consists of the assignment type Documentation, you can perform the required documentation updates, and sign off once these are completed. | 
| Obsolete | Obsolete modifications cannot be updated. If running tasks exist for this modification, these tasks will be allowed to finish. If decompliance is allowed for the modification revision, serials will be allowed to decomply with the modification revision. If however, running tasks do not exist, and the modification is not referenced by other modifications, this modification revision can be deleted. | 
Define
modification
Define MRO 
manufacturing operational data
    Associate 
repair codes, discrepancy codes and modification headers
Define modification
Define
a Modification Revision 
Modify
active modification