Airworthiness Directive · Amendment 39-11527 · Dornier Model 328-100 Series Airplanes
Dornier Model 328-100 Series Airplanes
Model 328-100 series airplanes, equipped with ground spoiler actuators having part number 1059A0000-02, 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 (c) 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 adopts a new airworthiness directive (AD), applicable to certain Dornier Model 328-100 series airplanes, equipped with ground spoiler actuators having part number 1059A0000-02, that requires removal of the gland attachment bolts of the ground spoiler actuator and replacement with new bolts installed with higher torque. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent hydraulic fluid leakage due to loose or broken gland attachment bolts, and consequent loss of the main hydraulic system.
To prevent hydraulic fluid leakage due to loose or broken gland attachment bolts, and consequent loss of the main hydraulic system, accomplish the following:
(a) Prior to the accumulation of 3,300 total flight hours, or within 330 flight hours after the effective date of this AD, whichever occurs later, remove the four gland attachment bolts of the ground spoiler actuator and replace with new bolts installed at a higher torque, in accordance with Dornier Service Bulletin SB-328-27-289, dated March 3, 1999.
Note 2: Dornier Service Bulletin SB-328-27-289, dated March 3, 1999, refers to Liebherr Service Bulletin 1059A-27-01, dated March 5, 1999, as an additional source of service information for accomplishment of the replacement.
(b) As of the effective date of this AD, no person shall install, on any airplane, a ground spoiler actuator having part number 1059A0000-02, unless it has been modified in accordance with Dornier Service Bulletin SB-328-27-289, dated March 3, 1999.
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
