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Airworthiness Directive 98-25775

recurring
AD 98-25775 · 1998-09-28 · airframe

Airworthiness Directives; Maule Aerospace Technology Corp. M-4, M-5, M-6, M-7, MX-7, and MXT-7 Series Airplanes and Models MT-7-235 and M-8-235 Airplanes; Correction

What this AD requires

This document makes a correction to Airworthiness Directive (AD) 98-15-18, which was published in the Federal Register on July 21, 1998 (63 FR 39018), and concerns Maule Aerospace Technology Corp. (Maule) M-4, M-5, M-6, M-7, MX-7, and MXT-7 series airplanes and Models MT-7-235 and M-8-235 airplanes. The Appendix to AD 98-15-18 incorrectly references the applicable service bulletin in two different places. All other reference in the AD is correct. The AD currently requires repetitively inspecting certain wing lift struts for internal corrosion, and replacing any wing lift strut where corrosion is found. This action corrects the AD to reflect the correct reference to the applicable service bulletin throughout the entire document.

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

Which aircraft AD 98-25775 applies to

MakesMaule Aerospace Technology Corp. M-4, M-5, M-6, M-7, Mx-7, And Mxt-7
ModelsM-4, M-5, M-6, M-7, M-8-235, MT-7-235, MX-7, MXT-7

certain

Whether AD 98-25775 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 compliance — The specific action taken (inspected, replaced, modified) and to what revision.
Date — When the work was done.
Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.
Signature & certificate — The A&P/IA who returned it to service, with certificate number.
Is AD 98-25775 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.