Appendix 2 – Minimum Difference Levels

The table below summarizes the minimum acceptable difference level as defined in FAA AC 120-53A and the JOEB OPS/FCL Common Procedures For Conducting Operational Evaluation Boards, dated June 10, 2004

DIFFERENCE LEVEL TRAINING CHECKING CURRENCY
A SELF INSTRUCTION N/A OR INTEGRATED WITH NEXT PC N/A
B AIDED INSTRUCTION TASK OR SYSTEM CHECK SELF REVIEW
C SYSTEMS DEVICES PARTIAL CHECK USING DEVICE DESIGNATED SYSTEM
D MANOEUVRE DEVICES** PARTIAL PC USING DEVICE  * DESIGNATED MANOEUVRE (S)
E SIMULATOR C/D OR AIRCRAFT # FULL PC USING SIMULATOR C/D OR AIRCRAFT  * AS PER REGULATIONS
(TAKEOFFS & LANDINGS IN SIMULATOR C/D OR THE AIRCRAFT)

Table 1.  Difference Level Summary

#      = AT LEVEL E – NEW TYPE RATING IS NORMALLY ASSIGNED

*       = IOE/SLF/ MAY BE REQUIRED ACCORDING TO REGULATIONS

**       = FFS or aircraft may be used to accomplish specific maneuvers

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