AD 91-12-13

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AD Number:
91-12-13
Document Type:
AD Final Rules
Docket Number:
90-CE-48-AD
Subject Heading:
Airworthiness Directives; DORNIER Model Dornier 228-100, 228-101, 228-200, 228- 201, 228-202, and 2...Show more
Subject:
Electric Trim System
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
07/19/1991
Make:
Dornier Luftfahrt GmbH
Model:
Dornier 228-100 | Dornier 228-101 | Dornier 228-200 | Dornier 228-201 | Dornier 228-202 | Dornier 228-212
Product Type:
Aircraft
Product Subtype:
Small/Large Airplane
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 91-12-13
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   90-CE-48-AD

AMENDMENT:   39-7024

AD NUMBER:   91-12-13

SUBJECT HEADING:   Airworthiness Directives; DORNIER Model Dornier 228-100, 228-101, 228-200, 228- 201, 228-202, and 228-212 Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective July 19, 1991.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
91-12-13 DORNIER: Amendment 39-7024. Docket No. 90-CE-48-AD.
Applicability: Model Dornier 228-100, Dornier 228-101, Dornier 228-200, Dornier 228- 201, Dornier 228-202, and Dornier 228-212 airplanes (serial numbers (S/N) 7005 through 7167, S/N 8002 through 8161, and 8163 through 8190), certificated in any category.

Compliance: Required within the next 600 hours time-in-service after the effective date of this AD, unless already accomplished.

To retain the reliability of the horizontal stabilizer electric trim system, accomplish the following:

(a) Replace relays 4CC, 5CC, 8CC, and 9CC with improved relays and modify the electrical connections of these relays in accordance with the following:

(1) For airplanes that utilize the autopilot and/or trim coupling option, perform the replacements and modification in accordance with the instructions in Dornier Service Bulletin No. SB-228-164, Revision 1, dated August 28, 1990.

(2) For airplanes that do not utilize the autopilot and the trim coupling option, perform the replacements and modification in accordance with the instructions in Dornier Service Bulletin No. SB-228-160, dated December 18, 1989.

(b) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a location where the requirements of this AD can be accomplished.

(c) An alternative method of compliance or adjustment of the compliance time that provides an equivalent level of safety may be approved by the Manager, Brussels Aircraft Certification Office, Europe, Africa and Middle East Office, FAA, c/o American Embassy, 1000 Brussels, Belgium. The request should be forwarded through an appropriate FAA Maintenance Inspector, who may add comments and then send it to the Manager, Brussels Aircraft Certification Office.

(d) The replacements and modifications required by this AD shall be done in accordance with Dornier 228 Service Bulletin (SB) No. SB-228-160, dated December 18, 1989, and Dornier 228 SB No. SB-228-164, Revision 1, dated August 28, 1990. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from Dornier Luftfahrt GmbH, Product Support, P.O. Box 3, D-8031 Wessling, Federal Republic of Germany. Copies may be inspected at the FAA, Central Region, Office of the Assistant Chief Counsel, Room 1558, 601 E. 12th Street, Kansas City, Missouri, or at the Office of the Federal Register, 1100 L Street, NW; Room 8401, Washington, DC.

This amendment (39-7024, AD 91-12-13) becomes effective on July 19, 1991.

FOOTER: