Airworthiness Directive · Amendment 39-11568 · Cessna Model 560 Series Airplanes
Cessna Model 560 Series Airplanes
Model 560 series airplanes having serial numbers (S/N) 560-0001 through 560-0437 inclusive; certificated in any category.
Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (d) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Cessna Model 560 series airplanes, that currently requires revising the FAA-approved Airplane Flight Manual (AFM) to provide the flightcrew with limitations, operational procedures, and performance information to be used during approach and landing when residual ice is present or can be expected. This amendment is prompted by reports indicating that, while operating in icing conditions or when ice is on the wings, some of these airplanes have experienced uncommanded roll at (or slightly higher than) the speed at which the stall warning system is activated. This amendment requires revising the AFM and revises the applicability of the existing AD. This amendment also requires modification of the stall warning system of the angle-of-attack computer. The actions specified by this AD are intended to prevent uncommanded roll of the airplane during approach and landing when residual ice is present or can be expected.
To prevent uncommanded roll of the airplane during approach and landing when residual ice is present or can be expected, accomplish the following:
(a) Within 10 days after the effective date of this AD, revise the FAA-approved Airplane Flight Manual (AFM); to provide the flightcrew with limitations, operational procedures, and performance information to be used during approach and landing when residual ice is present or can be expected; in accordance with the applicable revision of the AFM specified in paragraph (a)(1) or (a)(2) of this AD.
(1) For airplanes having S/N's 560-0001 through 560-0259 inclusive: AFM
Model 560 Citation V, Revision 11, dated July 16, 1998.
(2) For airplanes having S/N's 560-0260 through 560-0437 inclusive: AFM Model 560 Citation V Ultra, Revision 7, dated July 16, 1998.
(b) Within 6 months after the effective date of this AD, modify the stall warning system of the angle-of-attack computer of the navigational system, in accordance with paragraph (b)(1) or (b)(2), as applicable, of this AD.
(1) For airplanes having S/N's 560-0001 through 560-0055 inclusive: Modify in accordance with Cessna Service Bulletin SB560-34-70, dated July 14, 1998.
(2) For airplanes having S/N's 560-0056 through 560-0437 inclusive: Modify in accordance with Cessna Service Bulletin SB560-34-69, Revision 2, dated July 24, 1998.
(c) As of the effective date of this AD, no person shall install on any airplane an angle-of-attack computer having part number C11606-2 or C11606-3.
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
