Airworthiness Directive · Amendment 39-11857 · Bombardier Model DHC-7-100, and DHC-8-100, -200, and -300 Series Airplanes
Bombardier Model DHC-7-100, and DHC-8-100, -200, and -300 Series Airplanes
All Model DHC-7-100 series airplanes and all Model DHC-8-100, -200, and -300 series airplanes, 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 (b) 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 all Bombardier Model DHC-7-100, and DHC-8-100, -200, and -300 series airplanes, that requires a one-time inspection of maintenance records to determine the method used during the most recent weight and balance check of the airplane and, if necessary, accomplishment of a weight and balance check. 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 unusual handling characteristics and consequent reduced controllability during ground operations due to incorrect methods of weighing and balancing the airplane.
To prevent unusual handling characteristics and consequent reduced controllability during ground operations due to incorrect methods of weighing and balancing the airplane, accomplish the following:
(a) Within 60 days after the effective date of this AD, perform a one-time inspection of maintenance records to determine the method used during the most recent weight and balance check of the airplane.
(1) If the maintenance records indicate that platform scales or bottle jacks at the undercarriage jacking points were used during the most recent weight and balance check, no further action is required by this AD.
(2) If the maintenance records indicate that wing jacks were used during the most recent weight and balance check, or if the maintenance records do not verify the use of platform scales or bottle jacks at the undercarriage jacking points, within 60 days after the effective date of this AD, accomplish a weight and balance check of the airplane in accordance with the applicable de Havilland Weight and Balance Manual procedures specified in paragraph (a)(2)(i), (a)(2)(ii), (a)(2)(iii), (a)(2)(iv), (a)(2)(v), (a)(2)(vi), or (a)(2)(vii), of this AD.
(i) For Model DHC-7-100 series airplanes: Accomplish the actions in accordance with de Havilland Weight and Balance Manual PSM 1-7-8, Issue 1, dated
November 1978.
(ii) For Model DHC-7-101 series airplanes: Accomplish the actions in accordance with de Havilland Weight and Balance Manual PSM 1-7C-8, Issue 1, dated November 1978.
(iii) For Model DHC-7-102 series airplanes: Accomplish the actions in accordance with de Havilland Weight and Balance Manual PSM 1-71-8, Issue 2, dated February 1982.
(iv) For Model DHC-7-103 series airplanes: Accomplish the actions in accordance with de Havilland Weight and Balance Manual PSM 1-71C-8, Issue 1, dated November 1979.
(v) For Model DHC-8-100 series airplanes: Accomplish the actions in accordance with de Havilland Weight and Balance Manual PSM 1-8-8, Issue 3, dated March 1996.
(vi) For Model DHC-8-200 series airplanes: Accomplish the actions in accordance with de Havilland Weight and Balance Manual PSM 1-82-8, Issue 2, dated March 1996.
(vii) For Model DHC-8-300 series airplanes: Accomplish the actions in accordance with de Havilland Weight and Balance Manual PSM 1-83-8, Issue 3, dated March 1996.
