Airworthiness Directives; Boeing Model 747-400, 747-400F, 767-200, and 767-300 Series Airplanes Equipped With Pratt & Whitney Model PW4000 Series Engines
airworthiness · Rule · Final rule; request for comments. · Published 2001-01-22 · Effective 2001-02-06 · 66 FR 6449
Document
Document number
01-1234
Federal Register citation
66 FR 6449
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Publication date
2001-01-22
Effective date
2001-02-06
FAA docket
Docket No. 2000-NM-391-AD
Abstract
This amendment adopts a new airworthiness directive (AD) that is applicable to all Boeing Model 747-400, 747-400F, 767-200, and 767- 300 series airplanes equipped with Pratt & Whitney Model PW4000 series engines. This action requires revising the Airplane Flight Manual (AFM). This action is necessary to prevent reduced acceleration and climb performance relative to performance data in the AFM, which could result in runway overruns or impact with obstacles or terrain. This action is intended to address the identified unsafe condition.