Continental Airlines

Document ID: FAA-2008-0295-0007
Document Type: Public Submission
Agency: Federal Aviation Administration
Received Date: April 25 2008, at 09:39 PM Eastern Daylight Time
Date Posted: April 28 2008, at 12:00 AM Eastern Standard Time
Comment Start Date: March 13 2008, at 12:00 AM Eastern Standard Time
Comment Due Date: April 28 2008, at 11:59 PM Eastern Standard Time
Tracking Number: 80534897
View Document:

This is comment on Rule

Airworthiness Directives; Boeing Model 757 Airplanes

View Comment

Continental Airlines has reviewed the proposed AD regarding the nose wheel spin brake spring arm inspection and replacement and offers the following comments. 1. CAL believes that the cost estimate given in the NPRM is relatively low as it assumes zero fallout. If CAL decides to accomplish the recommended terminating action (which would be to install a CRES spring arm) due to a crack or to avoid the repetitive inspections, it will cost us not only around $10,000 for parts and labor per spring arm, but will add weight to the A/C making for additional yearly fuel costs. 2. CAL believes that the visual and HFEC inspections are redundant and give somewhat contradictory information about the failure mode of the spring arm. Perhaps Boeing and the FAA should review the inspection intervals again before the next revision of the SB and forthcoming addition of the AD.