AD NUMBER: 2001-13-18R1

MANUFACTURER: Raytheon
SUBJECT: Wing Spar Cracks
SUMMARY: The FAA is revising Airworthiness Directive (AD) 2001-13-18, which applies to Raytheon Aircraft Corporation (Raytheon) Beech Models 45 (YT-34), A45 (T-34A, B-45), and D45 (T-34B) airplanes. AD 2001-13-18 currently requires you to repetitively inspect the wing spar assembly for cracks and replace any wing spar assembly found cracked (unless the spar assembly has a crack indication in the filler strip, where the direction of the crack is toward the outside edge of the fillerstrip). AD 2001-13-18 also requires you to report the results of the initial inspection and maintain the flight and operating restrictions required by AD 99-12-02 until the initial inspection is done. The FAA approved alternative methods of compliance (AMOCs) to AD 2001-13-18 and has since determined that those AMOCs do not address all critical areas in the wing spar assemblies and should no longer be valid. The FAA is issuing this revision to AD 2001-13-18 for the purpose ofeliminating the AMOCs to AD 2001-13-18. The actions of this AD are intended to prevent wingspar failure caused by fatigue cracks in the wing spar assemblies and ensure the operationalsafety of the above-referenced airplanes.

FMI: www.avantext.com/DailyADIndex.ASP?AD=20011318R1