DHC-6 RE-LIFE ® WING BOX ™ WITH LONGER LIFE LIMITS
APPLICABILITY De Havilland DHC-6-100/-200/-300 Twin Otter Airplanes DESCRIPTION The AEVEX DHC-6 Re-Life ® Wing Box ™ is a De Havilland approved re-manufactured wing box which has replaced old fatigue critical components (i.e. wing attachment, lower skins, stringers, spar caps, hinge arms, etc.) with new components. The result is a “zero-timed” wing box with a new data plate and new life limits. The DHC-6 Re-Life ® Wing Box ™ has identical inspection and maintenance requirements as a new DHC-6 wing box. Installation on the aircraft is accomplished in accordance with DHC Service Bulletin No. 6/362 as an alternative to Modification No. 6/1630. MAINTENANCE/INSPECTION REQUIREMENTS Same as De Havilland PSM 1-6-2, PSM 1-63-2, PSM 1-6-5, PSM 1-6-7, and PSM1-6-11 with the following intervals: Series -100, -200: • Up to 49,000 Hours/98,000 Cycles – same as De Havilland intervals Series -300: • Up to 33,000 Hours/66,000 Cycles – same as De Havilland intervals using Drawing WR6-1000-ICA • After 33,000 Hours/66,000 Cycles – visual inspections each 1,500 hours/3,000 cycles/12 months using Drawing WR6-1000-ICA/LE
AUTHORIZATIONS United States FAA STC No. SA00160LA
Canada STC No. SA96-65 EASA STC No. 10053323 Australia (CASA) LIFE LIMITS Series -100/-200:
49,000 HOURS / 98,000 cycles 45,000 HOURS / 90,000 cycles
Series -300:
MODIFICATION STATUS DHC-6 RE-LIFE ® WING BOXES ™ include the following modifications: • Mod. No. 6/1301 – Incorporation of new rear spar cap (7075-T7351) (ref. S/B No. 6/295) • Mod. No. 6/1752 – Wing restraint tension rod installation (ref. S/B No. 6/469) • Mod. No. 6/1868 – Introduction of additional drain holes (ref. S/B No. 6/485) • Mod. No. 6/1869 – Installation of inspection holes in lower wing skin (ref. S/B No. 6/486) • Mod. No. 6/1871 – Introduction of flap hinge arm inspection panels at WS310.0 (ref. S/B No. 6/489) • Mod. No. 6/1873 – Introduction of flap hinge arm inspection panels at WS97.5 and WS 172.5 (ref. S/B No. 6/498) • Mod. No. 6/1883 – Introduction of alternate access hole plugs – change of materials (ref. S/B No. 6/499) • Mod. No. 6/1887 – Introduction of steel adaptor fitting (ref. S/B No. 6/500) • Mod. No. 6/1645 and 6/1893 – Lower skin and leading edge rivets at front spar replacement (ref. S/B No. 6/517) • S/B No. 6/542 – Installation of new wing front spar adaptor assembly (P/N C6WM1027-3)
Information subject to change without notice
AEVEX.com
AEVEX Aerospace | 37260 Sky Canyon Dr., Hangar 20, Murrieta, California 92563 | T: 951-600-0009 | E-mail: aircraftservices@AEVEX.com
DHC-6 RE-LIFE ® WING BOX ™ “BUILT UP” OPTIONS
The DHC-6 RE-LIFE ® WING BOX ™ is a De Havilland approved direct replacement wing box as defined in the De Havilland Structural Life Limits Manual, PSM 1-6-11, page 1, paragraph 2 with further information contained in De Havilland Service Bulletin No. 6/362. Accordingly, the basic DHC-6 RE-LIFE ® WING BOX ™ is provided without nacelle, fiberglass wing tip, flight controls, etc. as explained the De Havilland Service Bulletin No. 6/362.
AEVEX Aircraft Services is pleased to offer our customers a “built-up” DHC-6 RE-LIFE ® WING BOX™. To minimize aircraft downtime when replacing timed-out wing boxes we offer the following: • DHC-6 Re-Life ® Nacelles ™ , installed, exchange • Wing wire harness, new, installed • Paint, DuPont Imron AF400, Standard Matterhorn White/Black or custom configuration • Long Range Wing Tip Tank (ref S.O.O. 6095) structural provisions and wing box plumbing, installed • De-Ice Boots, installed (ref. S.O.O. 1579) (non Tip Tank wing boxes only, unless Tip Tanks are provided) • Additional provisions for a second flux valve
The primary advantage with the “built-up” wing box is that the down time required for the wing box change is reduced from four (4) to six (6) weeks to approximately one (1) to (2) weeks.
Information subject to change without notice
AEVEX.com
AEVEX Aerospace | 37260 Sky Canyon Dr., Hangar 20, Murrieta, California 92563 | T: 951-600-0009 | E-mail: aircraftservices@AEVEX.com
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