Airworthiness Directive 97-14-06
one-timeAirworthiness Directives; Boeing Model 747 Series Airplanes, Excluding Airplanes Equipped With Pratt & Whitney PW4000 and General Electric CF6-80C2 Series Engines
What this AD requires
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Boeing 747 series airplanes, that currently requires replacement of certain fuse pins on the upper link of the inboard and outboard struts. That AD also requires inspections to detect corrosion or cracks of certain fuse pins, and replacement, if necessary. This amendment reduces the compliance times of actions associated with certain fuse pins and provides for optional terminating action for the requirements of this AD. This amendment is prompted by a report of fracturing of a bulkhead style fuse pin located in the inboard strut at the forward end of the upper link. The actions specified in this AD are intended to prevent failure of the strut and separation of an engine from the airplane due to fracturing of the fuse pins.
Which aircraft AD 97-14-06 applies to
Applies to airplanes identified in the preceding applicability provision; required action (fuse-pin replacement vs. inspection) on the upper link forward position depends on whether the installed fuse pin is a bottle bore style, bulkhead style, or 15-5 corrosion resistant steel (third generation) style pin, per Boeing Alert Service Bulletin 747-54A2166, dated April 28, 1994, or Revision 1, dated May 1, 1997.
Whether AD 97-14-06 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.