Airworthiness Directive · Amendment 39-17776 · Fuselage
The Boeing Company Airplanes
This AD applies to The Boeing Company Model 777-200, -200LR, -300, -300ER, and -777F series airplanes, certificated in any category, as identified in Boeing Alert Service Bulletin 777-53A0068, dated June 12, 2013.
We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 777 airplanes. This AD was prompted by a report of cracking in the fuselage skin underneath the satellite communication (SATCOM) antenna adapter. This AD requires repetitive inspections of the visible fuselage skin and doubler if installed, for cracking, corrosion, and any indication of contact of a certain fastener to a bonding jumper, and repair if necessary. We are issuing this AD to detect and correct cracking and corrosion in the fuselage skin, which could lead to rapid decompression and loss of structural integrity of the airplane.
(1) For Groups 1-4 airplanes, and Group 5, Configurations 3 and 4 airplanes, identified in Boeing Alert Service Bulletin 777-53A0068, dated June 12, 2013: Except as required by paragraphs (h)(1) and (h)(2) of this AD, within the applicable compliance times specified in paragraph 1.E., “Compliance,” of Boeing Alert Service Bulletin 777-53A0068, dated June 12, 2013, do internal detailed and surface high frequency eddy current (HFEC) inspections of the visible fuselage skin, and doubler if installed, for cracking; do external detailed and surface HFEC inspections of the visible fuselage skin, and doubler if installed, for cracking, corrosion, and any indication that shows a contact of a certain fastener to a bonding jumper; and do all applicable repairs; in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 777-53A0068, dated June 12, 2013, except as required by paragraph (h)(3) of this AD. Thereafter, repeat the inspections at the applicable intervals specified in paragraph 1.E., “Compliance,” of Boeing Alert Service Bulletin 777-53A0068, dated June 12, 2013. Do all applicable repairs before further flight.
(2) For Group 5, Configurations 1, 2, and 5 airplanes, identified in Boeing Alert Service Bulletin 777-53A0068, dated June 12, 2013: No action is required by this AD.
(1) Tables 1, 5, and 9 of paragraph 1.E., “Compliance,” of Boeing Alert Service Bulletin 777-53A0068, dated June 12, 2013, refer to airplanes with certain conditions “at the time of the original issue date of this service bulletin.” For this AD, use “as of the effective date of this AD” instead of “at the time of the original issue date of this service bulletin.”
(2) Where paragraph 1.E., “Compliance,” of Boeing Alert Service Bulletin 777-53A0068, dated June 12, 2013, specifies a compliance time “after the original issue date of this service bulletin,” this AD requires compliance within the specified compliance time after the effective date of this AD.
(3) If any crack, corrosion, or indication that shows a contact of the fastener attaching the SATCOM lug adapter plate to the bonding plate is found during any inspection required by this AD, and Boeing Alert Service Bulletin 777-53A0068, dated June 12, 2013, specifies to contact Boeing for repair instructions: Before further flight, repair using a method approved in accordance with the procedures specified in paragraph (i) of this AD.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
