Airworthiness Directives; Boeing Model 727-100 and 727-200 Series Airplanes
airworthiness · Rule · Final rule. · Published 2003-06-11 · Effective 2003-07-16 · 68 FR 34781
Document
Document number
03-13976
Federal Register citation
68 FR 34781
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Boeing Model 727-100 and 727-200 Series
Publication date
2003-06-11
Effective date
2003-07-16
FAA docket
Docket No. 2001-NM-41-AD
Abstract
This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 727-100 and 727-200 series airplanes, that requires, under certain conditions, replacement of the installed autopilot pitch control computer with a modified computer, testing of the modified system, and revision of the Airplane Flight Manual (AFM). The actions specified by this AD are intended to prevent undesirable and potentially dangerous pitch oscillations during coupled instrument landing system (ILS) approaches. This AD is intended to address the identified unsafe condition.