Airworthiness directives › 2013-03-07
AD 2013-03-07 Airworthiness Directives; Hawker Beechcraft Corporation (Type Certificate Previously Held by Raytheon Aircraft Company; Beech Aircraft Corporation) Airplanes
Makes named: beech, raytheon, hawker beechcraft. Models named: 400A. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to the airplanes identified in paragraphs (c)(1) and (c)(2) of this AD, certificated in any category. (1) Hawker Beechcraft Corporation (Type Certificate previously held by Raytheon Aircraft Company; Beech Aircraft Corporation) Model 400A airplanes having serial numbers RK-45 and RK-49 through RK-353 inclusive. (2) Hawker Beechcraft Corporation (Type Certificate previously held by Raytheon Aircraft Company; Beech Aircraft Corporation) Model 400A airplanes (marketed as Hawker 400XP airplanes) having serial numbers RK-354 through RK-594 inclusive.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 400 flight hours or 12 months after the effective date of this AD, whichever occurs first, install an in-line fuse assembly in the 5-volt DC output circuit on each of the five instrument lighting power supplies, in accordance with the Accomplishment Instructions of Hawker Beechcraft Mandatory Service Bulletin SB 33-4002, dated October 2010. A note in the Accomplishment Instructions of Hawker Beechcraft Mandatory Service Bulletin SB 33-4002, dated October 2010, instructs operators to contact Hawker Beechcraft if any difficulty is encountered in accomplishing that service bulletin. However, any deviation from the instructions provided in Hawker Beechcraft Mandatory Service Bulletin SB 33-4002, dated October 2010, must be approved as an alternative method of compliance (AMOC) under the provisions of paragraph (i) of this AD.
Unsafe condition
This AD was prompted by a report that the wiring for the 5-volt direct current (DC) system is undersized and does not have adequate circuit protection for the smaller gauge wire. We are issuing this AD to prevent failure of the wiring, which could result in smoke in the cockpit, loss of cockpit lighting, and potential damage to surrounding wiring for other cockpit equipment such as the stick shaker function or angle-of-attack indicators.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1