Airworthiness directives › 2016-25-30
AD 2016-25-30 Airworthiness Directives; Airbus Airplanes
Models named: A330-223F, -243F, A330-201, -202, -203, -223, -243, A330-301, -302, -303. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to the Airbus airplanes, certificated in any category, identified in paragraphs (c)(1) through (c)(7) of this AD, all manufacturer serial numbers. (1) Model A330-223F and -243F airplanes. (2) Model A330-201, -202, -203, -223, and -243 airplanes. (3) Model A330-301, -302, -303, -321, -322, -323, -341, -342, and -343 airplanes. (4) Model A340-211, -212, and -213 airplanes. (5) Model A340-311, -312, and -313 airplanes. (6) Model A340-541 airplanes. (7) Model A340-642 airplanes.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
At the applicable time specified in table 1 to paragraph (g) of this AD: Upgrade (by modification or replacement, as applicable) the three flight control primary computers (FCPCs), as specified in table 1 to paragraph (g) of this AD, in accordance with the Accomplishment Instructions of the applicable service information specified in paragraphs (h)(1), (h)(2), (h)(3), (h)(4), and (h)(5) of this AD. Table 1 to Paragraph ( g ) of This AD—Software Standard Updates and Compliance Times Software standard Hardware standard Compliance time after effective date of this AD P13/M22 FCPC 2K2 Within 9 months. P14/M23 FCPC 2K1 Within 9 months. M23 FCPC 2K0 Within 9 months. L24 FCPC 2K1 or 2K0 Within 15 months. L23 FCPC 2K2 Within 15 months. W13 FCPC 2K2 Within 15 months.
Unsafe condition
This AD was prompted by a determination that, due to significant differences among all airspeed sources, the flight controls will revert to alternate law, the autopilot (AP) and the auto-thrust (A/THR) will automatically disconnect, and the flight director (FD) bars will be automatically removed. Then, if two airspeed sources become similar while still erroneous, the flight guidance computers will display the FD bars again, and enable the re-engagement of the AP and A/THR. In some cases, however, the AP orders may be inappropriate, such as a possible abrupt pitch command. We are issuing this AD to prevent AP engagement under unreliable airspeed conditions, which could result in reduced control of the airplane.
Affected ADs
This AD affects the ADs identified in paragraphs (b)(1), (b)(2), (b)(3), and (b)(4) of this AD: (1) AD 2012-08-02, Amendment 39-17018 (77 FR 24829, April 26, 2012) (“AD 2012-08-02”). (2) AD 2013-03-06, Amendment 39-17341 (78 FR 15279, March 11, 2013) (“AD 2013-03-06”). (3) AD 2013-05-08, Amendment 39-17380 (78 FR 27015, May 9, 2013; corrected August 29, 2013 (78 FR 53237)) (“AD 2013-05-08”). (4) AD 2013-19-14, Amendment 39-17596 (78 FR 68347, November 14, 2013) (“AD 2013-19-14”).
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