Airworthiness Directive 97-22-02

recurring
Official AD 97-22-02 · FR doc 97-28082 · 1997-10-27 · airframe

Airworthiness Directives; Pilatus Britten-Norman Ltd. Models BN- 2, BN-2A, BN-2B, and BN-2T Series Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD) that applies to Pilatus Britten-Norman Ltd. (PBN) BN-2, BN-2A, BN-2B, and BN-2T series airplanes. This action requires modifying the upper engine mounting brackets on the wing front spar as terminating action for the repetitive inspections that were required in AD 84-23-06. AD 84-23-06 is being revised in a separate action, deleting the Pilatus BN-2, BN- 2A, BN-2B, and BN-2T series airplanes from its applicability. This AD is prompted by several reports of cracks in the upper engine mounting brackets and a new terminating action to eliminate the repetitive inspections for Pilatus BN-2, BN-2A, BN-2B, and BN-2T series airplanes. The actions specified by this AD are intended to prevent the failure of the upper engine mounting brackets on the wing mounted engines, which could possibly cause structural failure of the airplane.

Repetitive inspection. Re-inspect every 500 hours. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 97-22-02 applies to

MakesPilatus Britten-Norman
ModelsBN-2
Part-conditionalNB/M/1147.

Specific serial applicability list is in the preceding applicability provision, not present in this excerpt. Addresses cracking/wear of the upper wing-mounted-engine mounting brackets, bolts, and bushes per Pilatus Britten-Norman SB BN-2/SB.61, Issue 5; Modification NB/M/1147 (bracket/bush/bolt replacement) terminates the repetitive inspection.

Whether AD 97-22-02 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:

Method of complianceThe specific action taken (inspected, replaced, modified) and to what revision.
DateWhen the work was done.
Aircraft timeTotal time in service / tach at compliance — how recurring next-due is computed.
Signature & certificateThe A&P/IA who returned it to service, with certificate number.
Is AD 97-22-02 complied with on your aircraft?

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.