ALLIEDSIGNAL
ALLIEDSIGNAL TF5311, T5313, T5317 and T53 series engines (Docket No. 96- ANE-25; Amdt. 39-9979; AD 97-07-05) - requires removal and replacement of the N2 spur gear nut retainer (lock cup). The amendment is prompted by reports of N2 spur gear nut retainer separation. The actions specified by this AD...
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