Dirk Deja

Document ID: FAA-2008-0589-0002
Document Type: Public Submission
Agency: Federal Aviation Administration
Received Date: August 19 2008, at 09:54 AM Eastern Daylight Time
Date Posted: August 19 2008, at 12:00 AM Eastern Standard Time
Comment Start Date: August 14 2008, at 12:00 AM Eastern Standard Time
Comment Due Date: September 15 2008, at 11:59 PM Eastern Standard Time
Tracking Number: 806cd204
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This is comment on Rule

Airworthiness Directives; Pratt and Whitney (P&W) PW4000 Series 94- Inch Fan Turbofan Engines

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Hey, I just have 2 points which should be taken into account when publishing the AD and migth be added with a comment from your side. Identifying and categorizing EEC's can also be done via the On-Log data because the are tracked by serialnumber. Therefore it is possible to establish an fleet management plan without access and marking of all units. This should be shown as an alternate compliance for step (f) and marking should only be applicable to Group 4 units and units on stock and spare engines. In addition it would be helpful to provide the line maintenance with the EEC installation Prohibition information within the AMM and TSM because tracking of group numbers are not possible, means same partnumber and replacements can be result just of trouble shooting. Please be so kind and let me know Thanks in advance