Airworthiness Directive 91-06-17
one-timeAirworthiness Directives; and modification status. Control Panels with serial numbers identified in Collins Service Bulletin DCP-7000-31-04, dated December
Which aircraft AD 91-06-17 applies to
gated by installed part (EFIS control panel/Modification 4 per Collins SB DCP-7000-31-04) — confirm exact model/serial from the records
Whether AD 91-06-17 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.
How AD compliance is recorded
A valid compliance record (14 CFR 43.9) states:
Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.
Look up a tail number →Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.