Docket No. 2002-CE-46-AD. This AD affects Model P-180 airplanes, all serial
numbers, that are certificated in any category.
The actions specified by this AD are intended to prevent a faulty
firewall shutoff or crossfeed valve from developing cracks and
leaking fuel. This could result in an engine fire.
...If, by checking the maintenance records, the owner/operator can
definitely show that no Electro Mech P/N EM484–3 firewall
shutoff or crossfeed valves with a serial number in the range of
148 through 302 are installed, then the inspection requirement of
paragraph (d)(2) and the replacement requirement of paragraph
(d)(3) of this AD do not apply... If the pilot cannot definitely
show that no affected firewall shutoff or crossfeed valves are
installed through the maintenance records check, then the
Inspection and Replacement requirements of paragraphs (d)(2) and
(d)(3) of this AD must be accomplished by an appropriately-rated
mechanic.
...If any Electro Mech P/N EM484–3 firewall shutoff or
crossfeed valve is found that incorporates a serial number in the
range of 148 through 302, accomplish one of the following:
(i) Install valve(s) that does not (do not) incorporate a serial
number in the range of 148 through 302; or.
(ii) Modify any valve(s) that incorporates (incorporate) a serial
number in the range of 148 through 302. The valve will be
re-identified with an "A" at the end of the serial number.
Accomplish any necessary replacements or modifications prior to
further flight...
This amendment becomes effective on March 8, 2003.
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