Airworthiness Directive 99-5041
recurringAirworthiness Directives; British Aerospace Model BAC 1-11 200 and 400 Series Airplanes
What this AD requires
This amendment supersedes an existing airworthiness directive (AD), applicable to all British Aerospace Model BAC 1-11 200 and 400 series airplanes, that currently requires repetitive visual inspections to detect cracks in the flight deck canopy area, and repair, if necessary; and repetitive detailed visual and eddy current inspections to detect cracks of the top sill members at station 82.5, and replacement of cracked parts with new parts, or repair of the top sill members. This amendment continues to require detailed visual and eddy current inspections to detect cracks of the top sill members at station 82.5. This amendment also adds a requirement for a one-time inspection to determine the type of fasteners installed in certain holes of the joint strap installation, and replacement of rivets with bolts, if necessary. This amendment is prompted by the issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to detect and correct cracking in the flight deck canopy area, which could result in reduced structural integrity of the flight deck frame and adjacent fuselage structure.
Which aircraft AD 99-5041 applies to
certain
Whether AD 99-5041 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 →Read the full directive (Federal Register)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.