TO 00-20-14 30 SEPTEMBER 2011 - Wright-Patterson Air Force Base

TO 00-20-14 30 September 2011requires periodic calibration by the PMEL. An AFTO Form 256, No Calibration Required, label or a ‘white dot’ shall beaffixed in accordance with Section 5.3.2.2 Calibrate Before Use (CBU). There are two criteria for CBU:a. TMDE identified by AFMETCAL as CBU in a CMS or TO 33K-1-100-2. These items require calibration oroperational verification prior to every use rather than periodical calibration. Generally, the CMS or TO 33K-1-100-2 entry for CBU items will reference a specific ‘Note Code’ instruction in TO 33K-1-100-1 Section 3.b. TMDE that normally is not used at least once during its calibration interval need not be periodically calibratedand may be designated as CBU. Calibration of TMDE designated CBU need not be recalibrated until the TMDEis to be used even though the calibration due date has passed. CBU items shall be calibrated at least once beforebeing designated as CBU. New TMDE shall require an initial calibration to ensure it meets requirements beforebeing designated CBU. Previously calibrated TMDE shall not require a recalibration before being designatedCBU unless requested by the user. After notifying the PMEL to update the master inventory, the user may enter“/CBU” following the DATE DUE date on the AFTO Form 99, 108, 394, or 398 as applicable and hold the itemuntil they require it to be calibrated. After calibration of a CBU designated item, an AFTO Form 99 or 398,whichever is applicable, shall be completed and marked CBU in accordance with Section 5. The CBUdesignation shall be entered in the PMEL Master Inventory listing in place of the calibration interval.NOTEPMEL cannot make an item CBU without the user's direction or permission.3.2.3 No End-Item Calibration (NEC). NEC in the calibration interval denotes TMDE designated SICL (See IndividualComponent Listing) in a CMS or TO 33K-1-100-2, that does not have an end-item-calibration requirement. NEC onlyapplies to the end-item; not components listed with separate calibration intervals.NOTEFor scheduling systems that have not been updated to process NEC, load as NCR.3.2.4 Next Higher Assembly (NHA). NHA in the calibration interval field of a CMS or TO 33K-1-100-2 denotescomponents that are calibrated as part of a next higher assembly. An AFTO Form 99 or 398 shall be completed andaffixed to the TMDE. The calibration interval and calibration TO of the next higher assembly apply unless otherwisenoted. NHA items shall not generate a separate “due calibration” in addition to the end item. The next higher assemblycertification label applies to all components designated NHA.NOTEFor scheduling systems that have not been updated to process NHA, load as NPC soonly the next higher assembly is scheduled for calibration.3.2.5 No Periodic Calibration Required (NPC) Items. There are two criteria for NPC:a. TMDE which are components of a higher assembly that are identified by AFMETCAL as NPC in a CMS or TO33K-1-100-2 do not require periodic calibration. An AFTO Form 99 or 398 shall be completed and affixed tothe TMDE. TMDE designated NPC shall be identified in the PMEL Master Inventory Listing as NPC where thefrequency is normally entered.b. Based on user applications (see below), an individual unit of TMDE may not require periodic calibration. Eventhough it belongs to a part number group that normally requires calibration per a CMS or TO 33K-1-100-2, itmay be locally designated as NPC by the user. The TMDE user exercises the option of designating an item NPCby contacting the PMEL with the request that a specific item be made NPC for one of the reasons listed below.An AFTO Form 99 or 398 shall be completed and affixed to the TMDE. TMDE designated as NPC shall beidentified in the PMEL Master Inventory Listing as NPC where the frequency is normally entered. The TMDEuser may designate an item NPC if it does not affect safety and any of the following are true:3-6