98-15-18
FR doc 98-19328 · 63 FR 39018AD 98-15-18Published 1998-07-21Effective 1998-09-09
Requires inspecting (one-time) certain wing lift struts for internal corrosion on certain Maule Aerospace Technology Corp.
1 correction to this AD FAA · 1998-09-28
Correction published 1998-09-28
- Issued by
- Federal Aviation Administration
- Published
- 1998-09-28
- Document
- Federal Register 98-25775 · Final rule; correction
- Corrects
- the version published July 21, 1998 at 63 FR 39018
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.
A correction restates part of an AD that was published incorrectly. It is not an additional requirement and it does not change the AD number or its effective date.
Source: Federal Register document 98-25775, retrieved 2026-08-16
Full official abstract
This amendment supersedes Airworthiness Directive (AD) 95-26- 18, which currently requires inspecting (one-time) certain wing lift struts for internal corrosion on certain 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, and replacing any wing lift strut where corrosion is found. That AD was the result of an accident where the wing separated from one of the affected airplanes. This AD retains the initial inspection and possible replacement requirements of AD 95-26-18, requires the inspections to be repetitive, and provides the option of using ultrasonic procedures to accomplish the inspection requirements. The actions specified by this AD are intended to prevent failure of the wing lift struts caused by corrosion damage, which could eventually result in the wing separating from the airplane.