Airworthiness Directive · Amendment 39-18837 · Fuselage
Textron Aviation Inc. (Type Certificate Previously Held by Cessna Aircraft Company) Airplanes
This AD applies to Textron Aviation Inc. (Type Certificate previously held by Cessna Aircraft Company) Model 680 airplanes, certificated in any category, as identified in paragraphs (c)(1) and (c)(2) of this AD.
(1) Model 680 Sovereign airplanes (commonly known as Citation Sovereign airplanes), having serial numbers: 680-0001, -0002, -0006, -0025, -0030, -0031, -0032, -0046, -0051, -0057, -0064, -0066, -0067, -0082, -0104, -0108, -0112, -0118, -0120, -0125, -0132, -0139, -0140, -0141, -0144, -0147, -0148, -0149, -0153, -0157, -0160, -0162, -0163, -0164, -0166, -0167, -0169, -0170, -0171, -0173, -0174, -0175, -0176, -0177, -0178, -0179, -0180, -0182, -0183, -0185, -0186, -0192, -0193, -0196, -0200, -0202, -0204, -0205, -0206, -0208, -0211, -0216, -0220, -0221, -0222, -0227, -0229, -0230, -0231, -0234, -0235, -0236, -0238, -0241, -0242, -0243, -0245, -0246, -0249, -0252, -0253, -0255, -0256, -0257, -0258, -0260, -0262, -0268, -0270, -0271, -0280, -0282, -0283, -0284, -0285, -0289, -0291, -0292, -0296, -0297, -0300, -0301, -0302, -0303, -0304, -0306, -0307, -0313, -0315, -0317, -0318, -0322, -0323, -0324, -0327, -0328, -0329, -0333, -0334, -0336, -0337, -0339, -0340, -0342, -0344, -0346, -0347, -0348, and -0349.
(2) Model 680 Sovereign airplanes (commonly known as Citation Sovereign+ airplanes) having serial numbers: 680-0501, -0504, -0505, -0509, -0510, -0511, -0512, -0513, -0514, -0515, -0516, -0517, -0519, -0520, -0522, -0524, -0525, -0526, -0527, and -0531.
We are adopting a new airworthiness directive (AD) for certain Textron Aviation Inc. (Textron) Model 680 airplanes. This AD was prompted by Textron's report of a manufacturing defect that affects the durability of the aft canted bulkhead metallic structure. This AD requires repetitive inspections of the aft canted bulkhead; repair if necessary; and a modification, which would terminate the repetitive inspections. We are issuing this AD to address the unsafe condition on these products.
Before the accumulation of 7,000 total flight hours, or within 100 flight hours after the effective date of this AD, whichever occurs later, perform a general visual inspection for disbonding and paint cracking around the edges of the stiffeners on the aft canted bulkhead, in accordance with the Accomplishment Instructions of Cessna Service Letter SL680-53-05, Revision 2, dated September 30, 2015. Repeat the general visual inspection thereafter at intervals not to exceed 100 flight hours, until the modification required by paragraph (i) of this AD is accomplished.
If, during any inspection required by paragraph (g) of this AD, any disbonding or cracked paint is found, before further flight, obtain instructions approved by the Manager, Wichita Aircraft Certification Office (ACO), ACE-118W, FAA, and, within the compliance time specified in those instructions, accomplish the instructions accordingly.
At the applicable compliance time specified in paragraph (i)(1) or (i)(2) of this AD, modify the airplane by installing additional stiffeners on the aft canted bulkhead, in accordance with the Accomplishment Instructions of Cessna Service Bulletin SB680-53-08, Revision 2, dated November 2, 2016, except as provided by paragraphs (k) and (l) of this AD. Doing this modification terminates the repetitive inspections required by paragraph (g) of this AD.
(1) For airplanes that have accumulated 7,000 or more total flight hours as of the effective date of this AD: Within 1,800 flight hours or 24 months, whichever occurs first, after the effective date of this AD.
(2) For airplanes that have accumulated less than 7,000 total flight hours as of the effective date of this AD: Within 3,600 flight hours or 48 months, whichever occurs first, after the effective date 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
