AD 98-20-12

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AD Number:
98-20-12
Document Type:
AD Final Rules
Docket Number:
98-NM-162-AD
Subject Heading:
[Correction] Airworthiness Directives; DORNIER LUFTFAHRT GMBH Model 328-100 Series Airplanes
Subject:
Main Landing Gear Proximity Sensor Electrical Units (PSEU)
Status:
Current
Citation:
Federal Register: September 22, 1998 (Volume 63, Number 183)
Citation Publish Date:
09/22/1998
Effective Date:
10/27/1998
Make:
328 Support Services GmbH
Model:
328-100
Product Type:
Aircraft
Product Subtype:
Large Airplane
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39 [63 FR 50493 No. 183 09/22/98]
Comments:
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1


[4910-13-U]


DEPARTMENT OF TRANSPORTATION


Federal Aviation Administration


14 CFR Part 39 [63 FR 50493 No. 183 09/22/98]


[Docket No. 98-NM-162-AD; Amendment 39-10779; AD 98-20-12]


RIN 2120-AA64


Airworthiness Directives; Dornier Model 328-100 Series Airplanes


AGENCY: Federal Aviation Administration, DOT.


ACTION: Final rule.


SUMMARY:
 
This amendment adopts a new airworthiness directive (AD), applicable to certain Dornier Model 328-100


series airplanes, that requires replacement of certain landing gear proximity sensor electrical units (PSEU) with improved


units.
 
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 the failure of normal extension and


retraction of the landing gear, which could result in collapse of the main landing gear upon landing.


DATES: Effective October 27, 1998.


The incorporation by reference of certain publications listed in the regulations is approved by the Director of the


Federal Register as of October 27, 1998.


ADDRESSES:
 
The service information referenced in this AD may be obtained from FAIRCHILD DORNIER,


DORNIER Luftfahrt GmbH, P.O. Box 1103, D-82230 Wessling, Germany.
 
This information may be examined at the


Federal Aviation Administration (FAA), Transport Airplane Directorate, Rules Docket, 1601 Lind Avenue, SW., Renton,


Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC.


FOR FURTHER INFORMATION CONTACT: Norman B. Martenson, Manager, International Branch, ANM-116, FAA,


Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425) 227-2110;


fax (425) 227-1149.


SUPPLEMENTARY INFORMATION:
 
A proposal to amend part 39 of the Federal Aviation Regulations (14 CFR


part 39) to include an airworthiness directive (AD) that is applicable to certain Dornier Model 328-100 series airplanes


was published in the
 
Federal Register
 
on July 31, 1998 (63 FR 40854). That action proposed to require replacement of


certain landing gear proximity sensor electrical units (PSEU) with improved units.


Comments


Interested persons have been afforded an opportunity to participate in the making of this amendment. No comments


were submitted in response to the proposal or the FAA's determination of the cost to the public.


Conclusion


The FAA has determined that air safety and the public interest require the adoption of the rule as proposed.


Cost Impact


The FAA estimates that 50 airplanes of U.S. registry will be affected by this AD, that it will take approximately


1 work hour per airplane to accomplish the required replacement, and that the average labor rate is $60 per work hour.


Required parts will be supplied by the manufacturer at no cost to the operators. Based on these figures, the cost impact of


the AD on U.S. operators is estimated to be $3,000, or $60 per airplane.


The cost impact figure discussed above is based on assumptions that no operator has yet accomplished any of the


requirements of this AD action, and that no operator would accomplish those actions in the future if this AD were not


adopted.


Regulatory Impact


The regulations adopted herein will not have substantial direct effects on the States, on the relationship between the


national government and the States, or on the distribution of power and responsibilities among the various levels of


government.
 
Therefore, in accordance with Executive Order 12612, it is determined that this final rule does not have


sufficient federalism implications to warrant the preparation of a Federalism Assessment.
2


For the reasons discussed above, I certify that this action (1) is not a “significant regulatory action” under Executive


Order 12866; (2) is not a “significant rule” under DOT Regulatory Policies and Procedures (44 FR 11034, February 26,


1979); and (3) will not have a significant economic impact, positive or negative, on a substantial number of small entities


under the criteria of the Regulatory Flexibility Act. A final evaluation has been prepared for this action and it is contained


in the Rules Docket.
 
A copy of it may be obtained from the Rules Docket at the location provided under the caption


“ADDRESSES.”


List of Subjects in 14 CFR Part 39


Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.


Adoption of the Amendment


Accordingly, pursuant to the authority delegated to me by the Administrator, the Federal Aviation Administration


amends part 39 of the Federal Aviation Regulations (14 CFR part 39) as follows:


PART 39 - AIRWORTHINESS DIRECTIVES


1. The authority citation for part 39 continues to read as follows:


Authority: 49 U.S.C. 106(g), 40113, 44701.


§ 39.13 [Amended]


2. Section 39.13 is amended by adding the following new airworthiness directive: