Airworthiness directives › 2013-08-02
AD 2013-08-02 Airworthiness Directives; The Boeing Company Airplanes
Models named: 777-200, -200LR, -300, -300ER series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to The Boeing Company Model 777-200, -200LR, -300, and -300ER series airplanes, certificated in any category, as identified in Boeing Alert Service Bulletin 777-55A0016, Revision 1, dated August 25, 2011.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
This paragraph restates the inspections and corrective actions required by paragraph (f) of AD 2007-26-05, Amendment 39-15307 (72 FR 71212, December 17, 2007), with revised service information. (1) Except as provided by paragraph (j)(2) of this AD: Do all inspections and actions described in paragraphs (g)(1) and (g)(2) of this AD, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 777-55A0015, dated April 19, 2007; or Boeing Service Bulletin 777-55A0015, Revision 3, dated November 24, 2009. At the applicable time specified in paragraph 1.E., “Compliance,” of Boeing Alert Service Bulletin 777-55A0015, dated April 19, 2007, except as provided by paragraph (g)(3) of this AD, do an initial dye penetrant or high frequency eddy current (HFEC) inspection for cracking of the elevator actuator fittings, and, thereafter, do repetitive dye penetrant, HFEC, or detailed inspections at the applicable times specified in paragraph 1.E., “Compliance,” of Boeing Alert Service Bulletin 777-55A0015, dated April 19, 2007. As of the effective date of this AD, Boeing Service Bulletin 777-55A0015, Revision 3, dated November 24, 2009, must be used to accomplish the actions required by this paragraph. (2) Before further flight, replace any fitting found to be cracked during any inspection required by paragraph (g)(1) of this AD with a new fitting having the same part number, or an optional part number, as identified in Boeing Alert Service Bulletin 777-55A0015, dated April 19, 2007; or Boeing Service Bulletin 777-55A0015, Revision 3, dated November 24, 2009; except as provided by paragraph (j)(2) of this AD. Thereafter, do initial and repetitive inspections of the replacement fitting at the time specified in paragraph 1.E., “Compliance,” of Boeing Alert Service Bulletin 777-55A0015, dated April 19, 2007. As of the effective date of this AD, Boeing Service Bulletin 777-55A0015, Revision 3, dated November 24, 2009, must be used to accomplish the actions required by this paragraph. (3) Where Boeing Alert Service Bulletin 777-55A0015, dated April 19, 2007, specifies a compliance time after the date on that service bulletin, this AD requires compliance within the specified compliance time after January 22, 2008 (the effective date of AD 2007-26-05, Amendment 39-15307 (72 FR 71212, December 17, 2007)).
Unsafe condition
This AD was prompted by a report of a cracked left elevator actuator fitting, and the recent determination that certain incorrect torque values had been specified for an alternative method of compliance intended to terminate the requirements of AD 2007-26-05, Amendment 39-15307 (72 FR 71212, December 17, 2007). We are issuing this AD to detect and correct a cracked actuator fitting or incorrectly installed bolts to the actuator fitting, which could lead to the elevator becoming detached and unrestrained, and a consequent unacceptable flutter condition and loss of control of the airplane.
Affected ADs
This AD supersedes AD 2007-26-05, Amendment 39-15307 (72 FR 71212, December 17, 2007).
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