Airworthiness Directive · Amendment 39-14873 · McDonnell Douglas Model MD-11 and -11F Airplanes
McDonnell Douglas Model MD-11 and -11F Airplanes
This AD applies to McDonnell Douglas Model MD-11 and -11F airplanes, as identified in Boeing Alert Service Bulletin MD11-54A011, Revision 3, dated November 9, 2005; certificated in any category.
The FAA is superseding an existing airworthiness directive (AD), which applies to certain McDonnell Douglas Model MD-11 and -11F airplanes. That AD currently requires an initial general visual inspection of the power feeder cables of the integrated drive generator (IDG) and the fuel feed lines of engine pylons No. 1 and No. 3 on the wings for proper clearance and damage; corrective actions if necessary; and repetitive general visual inspections and a terminating action for the repetitive inspections. This new AD requires the existing actions, and for certain airplanes, this AD requires installation of new clamps on the power feeder cables of the IDG of engine pylons No. 1 and No. 3. This AD results from reports of IDG power feeder cables riding against structure and fuel lines in the No. 1 and No. 3 pylons. We are issuing this AD to prevent potential chafing of the power feeder cables of the IDG in engine pylons No. 1 and No. 3 on the wings, and consequent arcing on the fuel lines in the engine pylons and possible fuel fire.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Note 1: Boeing has issued Information Notice MD11-54A011 R02 IN 02, dated July 11, 2002. The information notice informs operators of a typographical error for the string tie part number (P/N) specified in Boeing Alert Service Bulletin MD11-54A011, Revision 02, dated May 31, 2002. The service bulletin specifies string tie P/N 190L0F21G/A; the correct P/N is 109 LOF 21G/A.
Within 30 days after February 24, 2004 (the effective date of AD 2004-01-17), do a general visual inspection of the power feeder cables of the IDG and the fuel feed lines of engine pylons No. 1 and No. 3 on the wings for proper clearance and damage, per Boeing Alert Service Bulletin MD11-54A011, Revision 02, dated May 31, 2002; or Boeing Alert Service Bulletin MD11-54A011, Revision 3, dated November 9, 2005.
Note 2: For the purposes of this AD, a general visual inspection is defined as: “A visual examination of an interior or exterior area, installation, or assembly to detect obvious damage, failure, or irregularity. This level of inspection is made from within touching distance unless otherwise specified. A mirror may be necessary to enhance visual access to all exposed surfaces in the inspection area. This level of inspection is made under normally available lighting conditions such as daylight, hangar lighting, flashlight, or droplight and may require removal or opening of access panels or doors. Stands, ladders, or platforms may be required to gain proximity to the area being checked.”
If proper clearance exists and no damage is detected during any inspection required by paragraph (f) of this AD, do the action(s) specified in paragraphs (g)(1), (g)(2), and (g)(3) of this AD, as applicable, per Boeing Alert Service Bulletin MD11-54A011, Revision 02, dated May 31, 2002; or Boeing Alert Service Bulletin MD11-54A011, Revision 3, dated November 9, 2005.
(1) For Group 1 and Group 2 airplanes identified in the service bulletin: Repeat the inspection required by paragraph (f) of this AD every 6 months until the modification required by paragraph (g)(2) or (g)(3) of this AD, as applicable, has been done.
(2) For Group 1 airplanes identified in the service bulletin: Within 18 months after February 24, 2004, install the brackets to support the IDG harness, and install new clamps on the power feeder cables of the IDG of the No. 1 and No. 3 pylons.
(3) For Group 2 airplanes identified in the service bulletin: Within 18 months after February 24, 2004, replace the existing fairlead with a new clamp, and install new tape.
If improper clearance exists and no damage is detected during any inspection required by paragraph (f) of this AD, do the action(s) specified in paragraphs (h)(1), (h)(2), and (h)(3) of this AD, as applicable, per Boeing Alert Service Bulletin MD11-54A011, Revision 02, dated May 31, 2002; or Boeing Alert Service Bulletin MD11-54A011, Revision 3, dated November 9, 2005.
(1) For Group 1 and Group 2 airplanes identified in the service bulletin: Before further flight, reposition cables, and repeat the inspection required by paragraph (f) of this AD every 6 months until the modification required by paragraph (h)(2) or (h)(3) of this AD, as applicable, has been done.
(2) For Group 1 airplanes identified in the service bulletin: Within 18 months after February 24, 2004, install the brackets to support the IDG harness, and install new clamps on the power feeder cables of the IDG of engine pylons No. 1 and No. 3.
(3) For Group 2 airplanes identified in the service bulletin: Within 18 months after February 24, 2004, replace the existing fairlead with a new clamp, and install new tape.
(i) If improper clearance exists and any damage is detected during any inspection required by paragraph (f) of this AD, do the action(s) specified in paragraphs (i)(1), (i)(2), and (i)(3) of this AD, as applicable, per Boeing Alert Service Bulletin MD11-54A011, Revision 02, dated May 31, 2002; or Boeing Alert Service Bulletin MD11-54A011, Revision 3, dated November 9, 2005.
(1) For Group 1 and Group 2 airplanes identified in the service bulletin: Before further flight, reposition cables; repair damage or replace damaged cables or fuel feed lines with new or serviceable cables or fuel feed lines; and repeat the inspection required by paragraph (f) of this AD every 6 months until the modification required by paragraph (i)(2) or (i)(3) of this AD, as applicable, has been done.
(2) For Group 1 airplanes identified in the service bulletin: Within 18 months after February 24, 2004, install the brackets to support the IDG harness, and install new clamps on the power feeder cables of the IDG of engine pylons No. 1 and No. 3.
(3) For Group 2 airplanes identified in the service bulletin: Within 18 months after February 24, 2004, replace the existing fairlead with a new clamp, and install new tape.
For airplanes identified as Group 1, configurations 3 and 4, and Group 2, configuration 2, in Boeing Alert Service Bulletin (ASB) MD11-54A011, Revision 3, dated November 9, 2005: Within 30 days after the effective date of this AD, do a general visual inspection for proper clearance and damage of the power feeder cables of the IDG and the fuel feed lines of engine pylons No. 1 and No. 3 on the wings, in accordance with the Accomplishment Instructions of Boeing ASB MD11-54A011, Revision 3, dated November 9, 2005.
For airplanes identified as Group 1, configurations 3 and 4, and Group 2, configuration 2, in Boeing ASB MD11-54A011, Revision 3, dated November 9, 2005: If proper clearance exists and no damage is detected during any inspection required by paragraph (j) of this AD, do the actions specified in paragraphs (k)(1), (k)(2), and (k)(3) of this AD, as applicable, in accordance with the Accomplishment Instructions of Boeing ASB MD11-54A011, Revision 3, dated November 9, 2005. Accomplishment of the actions specified in paragraph (k)(2) or (k)(3) of this AD, as applicable, terminates the inspection requirements of paragraph (k)(1) of this AD.
(1) For Group 1 airplanes, configurations 3 and 4, and Group 2, configuration 2: Repeat the inspection required by paragraph (j) of this AD thereafter at intervals not to exceed 6 months, until the actions specified in paragraph (k)(2) or (k)(3) of this AD, as applicable, are accomplished.
(2) For Group 1 airplanes, configuration 3: Within 18 months after the effective date of this AD, install IDG harness support brackets and modify the IDG power feeder cable installations.
(3) For Group 1 airplanes, configuration 4, and Group 2, configuration 2: Within 18 months after the effective date of this AD, modify the IDG power feeder cable installations.
For airplanes identified as Group 1, configurations 3 and 4, and Group 2, configuration 2, in Boeing ASB MD11-54A011, Revision 3, dated November 9, 2005: If improper clearance exists and no damage is detected during any inspection required by paragraph (j) of this AD, do the actions specified in paragraphs (l)(1), (l)(2), and (l)(3) of this AD, as applicable, in accordance with the Accomplishment Instructions of Boeing ASB MD11-54A011, Revision 3, dated November 9, 2005. Accomplishment of the actions specified in paragraph (l)(2) or (l)(3) of this AD, as applicable, terminates the repetitive inspections required in paragraph (l)(1) of this AD.
(1) Before further flight, reposition the cables. Repeat the inspection required by paragraph (j) of this AD thereafter at intervals not to exceed 6 months, until the actions specified by paragraph (l)(2) or (l)(3) of this AD, as applicable, are accomplished.
(2) For Group 1 airplanes, configuration 3: Within 18 months after the effective date of this AD, install IDG harness support brackets and modify the IDG power feeder cable installations.
(3) For Group 1 airplanes, configuration 4, and Group 2 airplanes, configuration 2: Within 18 months after the effective date of this AD, modify the IDG power feeder cable installations.
For airplanes identified as Group 1, configurations 3 and 4, and Group 2, configuration 2, in Boeing ASB MD11-54A011, Revision 3, dated November 9, 2005: If improper clearance exists and there is any damage to the cables, structure, or fuel feed line, do the actions specified in paragraphs (m)(1), (m)(2), and (m)(3) of this AD, as applicable, in accordance with the Accomplishment Instructions of Boeing ASB MD11-54A011, Revision 3, dated November 9, 2005. Accomplishment of the actions specified in paragraph (m)(2) or (m)(3) of this AD, as applicable, terminates the repetitive inspection requirements of paragraph (m)(1) of this AD.
(1) Before further flight, reposition cables and repair damage or replace damaged cables or fuel feed lines with new or serviceable cables or fuel feed lines. Repeat the inspection required by paragraph (j) of this AD thereafter at intervals not to exceed 6 months, until the actions specified by paragraph (m)(2) or (m)(3) of this AD, as applicable, are accomplished.
(2) For Group 1 airplanes, configuration 3: Within 18 months after the effective date of this AD, install IDG harness support brackets, and modify the IDG power feeder cable installations.
(3) For Group 1 airplanes, configuration 4, and Group 2 airplanes, configuration 2: Within 18 months after the effective date of this AD: Modify the IDG power feeder cable installations.
