56-101-00184 / 00185 Rev. I INTROSeptember 24, 2014 Page 2 of 56B. Each new or re-certified unit is delivered with a Certificate that shows the date when theunit was tested by the manufacturer, its serial number, and when the next certification isdue. This certificate confirms that the unit performed according to its designspecifications.C. The one year limited warranty for this unit (Figure 2).3. RECERTIFICATIONThe Test Sets P/N 101-00184 and P/N 101-00185 have a 6-month recertification periodwhen analog instruments are installed. However, when digital instruments are installed therecertification period is typically one year. For complete specifications on digitalinstruments, refer to documents 61-101-02184 and 61-101-02194.It is strongly recommended that the manufacturer, Barfield Inc., service the Test Set. Thiswill ensure that all applicable engineering change orders are incorporated during therequired maintenance or recertification procedure. Additionally, at this time only Barfieldtechnicians are qualified to service the digital instruments.Note: It is important that the customer ensures the Test Set is in compliance with theRecertification requirement.Note: If the Test Set is to be used in compliance with F.A.R. 91.170 and Part 43, AppendixE, "Altimeter System Tests and Inspections," refer to FAA Advisory Circular AC43-6B(or subsequent) for approved inspection intervals and procedures.