Airworthiness directives › 2017-18-11
AD 2017-18-11 Airworthiness Directives; Textron Aviation Inc. Airplanes
Makes named: textron aviation. Models named: 390. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Textron Aviation Inc. (type certificate previously held by Beechcraft Corporation) Model 390 airplanes; serial numbers RB-4 through RB-295; certificated in any category.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 100 hours time-in service (TIS) after October 16, 2017 (the effective date of this AD), inspect the airplane to determine if any affected serial number EDP, part number (P/N) 66179-01 (Beechcraft/Textron P/N 390-389022-0003), is installed on the airplane following the Accomplishment Instructions in Beechcraft Mandatory Service Bulletin SB 29-4161, dated November 18, 2016. Use table 1 in Parker Service Bulletin 66179-29-486, dated August 4, 2016, to identify the affected serial numbers of EDP, P/N 66179-01 (Beechcraft/Textron P/N 390-389022-0003).
Unsafe condition
This AD was prompted by reports of hydraulic fluid loss from the engine driven pumps (EDPs) on three different airplanes. We are issuing this AD to prevent cracking of the EDP that could cause leakage of hydraulic fluid and possibly lead to loss of normal hydraulic functions, which could lead to a high-speed runway overrun and/or an in-flight fire.
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