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DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14CFR Part 39 (Docket No. FAA-2008-I098; Directorate Identifier 2008-NM-I08-AD( RlN 2120-AA64 Ainvorthiness Directives; The Boeing Company Model 747-100,747-1 OOB, 747-100B SUO, 747-200B, 747-200C, 747-200F, 747-300, 747SR, and 747SP Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Supplemental notice ofproposed rulemaking (NPRM); reopening ofcammel period. SUMMARY: We are revising an earlier proposed airworthiness directive (AD) for certain Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747SR, and 747SP series airplanes. The original NPRM would have required adding two new indicator lights onthe PID panel to inform the captain and firstofficer 0 alowpressure condition inthe left and right override/jettison pumps ofthe center wing tanks. The original NPRM would also have required replacing the left and right override/jettison switches onthe M154 fuel control module on the P4 panel with improved switches and doing the associated wiring changes. The original NPRM would have also required arevision to the maintenance program to incorporate airworthiness limitation No. 28-AWL-22. The original NPRM resulted from fuel system reviews conducted by the manufacturer. This action revises the original NPRM by adding a revision to the airplane flight manual to advise the flightcrew what 10do inthe event th thepump low pressure light onthe flight engineer's panel does not illuminate when the pump is selected off; and requiring, forcertain airplanes, installation ofamounting bracket forthe new indicator lights. We are proposing this supplemental NPRM to 

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m thepump low pressure light onthe flight engineer's panel does not illuminate when the pump isselected off; and requiring, for certain airplanes, installation ofamounting bracket forthenew indicator lights. We are proposing this supplemental NPRM to limitation No. 28~A

WL-22. The original NPRM resulted from fuel system reviews conducted by the manufacturer. This action revises the original NPRM by adding a revision to the airplane flight manual to advise the flightcrew what to do inthe event th have also required arevision to the maintenance program to incorporate airworthiness improved switches and doing the associated wiring changes. The original NPRM would adding two new indicator lights onthe PID panel to inform the captain and firstofficer a [owpressure condition inthe left and right override/jettison pumps ofthe center wing 747-300, 747SR, and 747SP series airplanes. The original NPRM would have required Federal Aviation Administration

Ainvorthiness Directives; The Boeing Company Model 747-100, 747-100B,

certain Model 747-100, 747-1008, 747-1008 SUO, 747-2008, 747-200C, 747-200F, [Docket No. FAA-2008-1098; Directorate Identifier 2008-NM-108-AD) RIN 2120-AA64
Airplanes AGENCY: Federal Aviation Administration (FAA), pOT. ACTION: Supplemental no~iceofproposed rulemaking (NPRM); reopening ofcomme 747-1008 SUD, 747-2008, 747-200C, 747-200F, 747-300, 747SR, and 747SP Series

tanks. The original NPRM would also have required replacing the left and right override/jettison switches onthe Ml54 fuel control module on the P4panel with period. SUM:MARY: We are revising an earlier proposed airworthiness directive (AD) for 14CFR Part 39