Airworthiness directives › 2016-12-15
AD 2016-12-15 Airworthiness Directives; Airbus Airplanes
Models named: A330-201, -202, -203, -223, -223F, -243, -243F, -301, -302, -303. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to the airplanes, certificated in any category, identified in paragraphs (c)(1) and (c)(2) of this AD, all manufacturer serial numbers. (1) Airbus Model A330-201, -202, -203, -223, -223F, -243, -243F, -301, -302, -303, -321, -322, -323, -341, -342, and -343 airplanes. (2) Airbus Model A340-211, -212, -213, -311, -312, -313, -541, and -642 airplanes.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
This paragraph restates the requirements of paragraph (g) of AD 2016-07-30, with no changes. For airplanes on which any UTAS AOA sensor having part number (P/N) 0861ED or P/N 0861ED2 is installed: At the applicable time specified in paragraph (h) of this AD, replace all Captain and First Officer AOA sensors (probes) having P/N 0861ED or 0861ED2 with AOA sensors having Thales P/N C16291AB, in accordance with the Accomplishment Instructions of the applicable service information identified in paragraph (g)(1), (g)(2), or (g)(3) of this AD. (1) Airbus Service Bulletin A330-34-3315, dated March 26, 2015 (for Model A330 airplanes). (2) Airbus Service Bulletin A340-34-4294, dated March 26, 2015 (for Model A340-200 and -300 airplanes). (3) Airbus Service Bulletin A340-34-5105, dated March 26, 2015 (for Model A340-500 and -600 airplanes).
Unsafe condition
This AD was prompted by a report of blockage of two Angle of Attack (AOA) probes during climb, leading to activation of the Alpha Protection (Alpha Prot) while the Mach number increased. This activation could cause a continuous nose-down pitch rate that cannot be stopped with backward sidestick input, even in the full backward position. We are issuing this AD to prevent erroneous AOA information and Alpha Prot activation due to blocked AOA probes, which could result in a continuous nose-down command and consequent loss of control of the airplane.
Affected ADs
This AD replaces AD 2016-07-30, Amendment 39-18475 (81 FR 21722, April 13, 2016) (“AD 2016-07-30”).
Read the original on the Federal Register →
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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