drawdown requisition for each type of allowance is described in the next paragraphs. Drawdown Requisitions for AVCAL The central outfitting funds are charged for drawdown requisitions of the initial or increase in AVCAL allowances of NSA DLRs. After converting to end-use, drawdown requisitions are submitted to NAVICP-Phil. Submit requisitions using demand code N, signal code C or L, advice code 5D, and fund code QZ for 7R Cog items. Requisitions for APA DLRs must cite demand code N, advice code 5D, and fund code Y6. Submit requisitions for APA DLR items via normal requisitioning channels. Drawdown Requisitions for SHORCAL The drawdown requisitions for initial or increased SHORCAL allowances for NSA DLRs are chargeable to central outfitting funds held by NAVICP-Phil. Submit drawdown requisitions to NAVICP-Phil with demand code N, advice code 5D, and fund code QZ for 7R Cog items. Drawdown requisitions for APA and 0_ Cog DLRs must cite demand code N and advice code 5D. Use the fund codes with the appropriate cognizance symbol. Use fund code 26 in requisitions for APA DLR items. Use fund code Y6 in requisitions for interim support (0_ Cog) DLR items. Maintenance Assist Modules The items designated as  Maintenance Assist Modules (MAMs) for aviation applications are not included in the activity’s AVCAL or SHORCAL as part of fixed allowance. Most MAMs are 7R Cog items and are used as support equipment, Initial outfitting of MAMs are identified through the AVCAL or SHORCAL process at NAVICP-Phil. The MAM requirements are pushed by NAVICP-Phil and are centrally funded at NAVICP-Phil by central outfitting funds. The supply officer receiving the initial outfitting MAMs pushed by NAVICP-Phil must issue them on custody of the Intermediate Maintenance Activity (IMA). Replacement of a MAM DLR can be accomplished by using the normal requisitioning procedures. The policy and procedures for MAMs are described in FASOINST 4790.1. Test Bench Installation The items designated as test bench installation (TBI) are similar to those black boxes installed in aircraft for which the test bench is designed to test and check. The TBI items are identified during the AVCAL or SHORCAL process at NAVICP-Phil, but they are not included as part of the fixed allowance. The initial outfitting requirements for TBI items will be pushed by NAVICP-Phil to the activity. Upon receipt of TBI items by the activity, the supply officer assigns their custody to the IMA. Items designated as TBI are not carried in the stock record of the supply department. DLR TURN-IN Turn-in of DLRs because of excess in allowance, NRFI retrograde, or material transfers must be processed properly. Improperly processed DLR turn-ins can delay carcass processing and affect readiness because of a decrease in asset availability. Loss of DLR turn-in during shipments could deprive the TYCOM or activity’s operating budget from receiving a credit. Losses may also create additional charges to the activity’s operating fund; whereas, the activity is charged the standard price instead of the net price. Furthermore, DLR losses could require the NAVICP to spend DBOF funds to buy new replacement items. Exchange Related In support of the one-for-one concept, an NRFI DLR is turned-in as an exchange for the requisitioned item. The NRFI DLR is returned to the supply system on a DD Form 1348-1 or DD Form 1348-1A with document identifier BC1/BC2. All the associated documents, records, or logbooks must be attached to the material being turned-in. Use management code E and the document number of the replacement requisition on the shipping document. This document number will be used to match the requisition and turn-in document numbers in the NAVICP carcass tracking record (CTR). The turn-in is shipped to the nearest ATAC Hub or to the designated support point (DSP) if the activity is not under ATAC or the item is excluded from shipment under ATAC. Excess Repairable items in excess of the fixed allowance are turned-into the supply system. Excess condition is a result of fluctuating demand pattern, decrease in 4-14