either IMA production control or the IMA is the most desirable arrangement. The major criteria for managing items in rotatable pool are supply support improvement, local demand, and space availability. However, inclusion of an item in the rotatable pool will not be constrained by a specific usage rate. Proper management of rotatable pool assets depends on judicious use of low limits to alert the IMA of critical situations. Use of low limits will prevent NIS situations by triggering a higher production priority in the IMA for repair. Repeated critical situations should highlight logistics management deficiencies and start review actions. The supply department prepares a list of LRCA items carried in storage locations. The list specifically y identities those items in the rotatable pool. Supply distributes the list to all aircraft maintenance activities requiring supply support. The format of the list includes the NSN, manufacturer’s part number, CAGE code, WUC, family group cede, description, and LRCA item number. Supply prepares the list in various sequences adapted to the needs of the maintenance activities. Afloat activities maintain operational support inventory (OSI) by using the aviation consolidated allowance list (AVCAL) process. FASOINST 4440.15 describes procedures for establishing retail requirement levels for consumables and repairables afloat. Shore activities use the shore-based consolidated allowance list (SHORCAL) process. FASOINST 4440.16 describes the procedures for the retail establishment levels ashore. The OSI/fixed allowance is a result of negotiations between the operating sites and the Aviation Supply Office (ASO). The activity’s OSI/fixed allowance assets are subject to ASO redistribution only to fill issue priority 1, issue group 1, NMCS, or PMCS requisitions. Otherwise, it is protected from ASO redistribution. The OSI/fixed allowances are managed under several Purpose codes. The following texts describes the Purpose codes. Purpose code “W” is assigned to the OSI retail level and consists of aviation depot-level repairable (AVDLR) and field level repairable (FLR). Purpose code “L” is assigned to the supplemental aviation spares support requirements. The quantity on hand in “L” will equate to the quantity deployed. Purpose code “A” is assigned to the wholesale FLR and AVDLR that are not part of the authorized site fixed allowance. Allowance change requests are submitted to ASO with information copies to ACC/TYCOM and are subject to negotiations. Use NAVSUP Form 1375 for submitting allowance change request. Allowance computation after the initial outfitting or reAVCAL/reSHORCAL is based on the activity’s usage and repair history. The local usage/repair history data base used for allowance computation will be 12 months, except for new systems or aircraft. In case of new equipment or aircraft aboard for less than 1 year, use a minimum of 6 months of data. Use the local repair cycle requirement (LRCR) table provided in FASOINST 4440.15/4440. 16 for determining allowance quantity. OPNAVINST 4790.2 also provides an LRCA table for computing allowances. Repairable item fixed allowances are determined by turnaround time (TAT) and monthly usage. If the TAT is stable, assets will be available as requirements occur. If TAT lengthens for any unusual reason, rotation of assets slows and affects readiness. The TAT performance must be monitored. Supply should conduct liaison with IMA when excessive TAT begins to impact support performance. When using TAT in computing allowances, each TAT element will be constrained as follows: Removal to IMA, 1 day Scheduling time, 3 days AWP time, 20 days Actual repair time, 8 days NOTE: The total average TAT will be limited to a maximum of 20 days for each NIIN in each case. Constraints will be applied to each case before totalling. Issue procedures for LRCA may vary between activities. The procedures depend upon manual or automated processing. In manual processing, issue of LRCA begins in SRS when the storage area and SRS are collocated. The LRCA will receive the original, green, pink yellow, and hardback copies of the DD Form 1348 (6 pt) from MDU. The LRCA will breakout the requested item and put the Julian date and time below block V of the original copy of the DD Form 1348 (6 pt). The LRCA will give the material and all DD Form 1348 (6 pt) copies to MDU for delivery to the customer. The LRCA posts the issue transaction on stock records. Flight deck issue is the process of issuing repairable material to meet the flight deck or flight line urgent 9-12