Takeo Asano

Document ID: FAA-2009-0906-0005
Document Type: Public Submission
Agency: Federal Aviation Administration
Received Date: November 13 2009, at 12:00 AM Eastern Standard Time
Date Posted: November 16 2009, at 12:00 AM Eastern Standard Time
Comment Start Date: October 13 2009, at 12:00 AM Eastern Standard Time
Comment Due Date: November 27 2009, at 11:59 PM Eastern Standard Time
Tracking Number: 80a56a6a
View Document:

This is comment on Rule

Airworthiness Directives: Boeing Model 747-100, 747-100B, 747-100B SUD, et al., Series Airplanes

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Dear Sirs Please give your consideration to the following proposal. AD 97-26-07 presently requires the repetitive inspection of No.1 and No. 4 main fuel tank boost pump wirings which run through the inboard fuel tanks per Boeing Service Bulletin 747-28A2204. This inspection makes sure that the wirings are not damaged to be an ignition source. But after the modification. alternatively, GFI relays will monitor the electrical faults and remove the power from the fuel pump immediately to minimize the risk of ignition source when the wires are damaged. If FAA can approve SB 747-28A2261 as a terminative action for AD 97-26-07, please clarify it in the AD description to save operator's workload.