AD 82-26-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Dornier Luftfahrt GmbH | Do 28 D-1 | Airworthiness Directives; DORNIER Model DO28D-1 Airplanes |
Unsafe Condition
Restriction of control movement due to jamming of the ARC PA-500A actuator gear train.
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Required Actions
Inspect the ARC PA-500A actuator within 100 hours time-in-service after the effective date and every 100 hours thereafter per Dornier Service Bulletin No. 1069-2820. Modify the actuator within 12 months after the effective date per the same service bulletin. Discontinue inspections after modifications are completed.
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Compliance Time
Within the next 100 hours time-in-service after the effective date of this AD and thereafter at intervals not to exceed 100 hours time-in-service for inspections; within 12 months after the effective date for modifications.
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Affected Aircraft
Dornier Luftfahrt GmbH Model DO28D-1 airplanes with serial numbers 4036, 4037, 4050, 4055 through 4058, 4303, 4308 through 4318, 4321 through 4325, 4331, and 4332, equipped with ARC PA-500A autopilot actuators.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Autopilot Actuators
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_82-26-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 82-26-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; DORNIER Model DO28D-1 Airplanes Subject: Autopilot Actuators Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 12/27/1982 Make: Dornier Luftfahrt GmbH Model: Do 28 D-1 Product Type: Aircraft Product Subtype: Small/Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 82-26-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4518 AD NUMBER: 82-26-04 SUBJECT HEADING: Airworthiness Directives; DORNIER Model DO28D-1 Airplanes ACTION: SUMMARY: DATES: Effective December 27, 1982. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 82-26-04 DORNIER: Amendment 39-4518. Applies to Model DO28D-1 (Serial Nos. 4036, 4037, 4050, 4055 through 4058, 4303, 4308 through 4318, 4321 through 4325, 4331 and 4332) airplanes, certificated in any category, when equipped with ARC PA-500A autopilot actuators. COMPLIANCE: Required as indicated, unless already accomplished. To prevent restriction of control movement due to jamming of the ARC PA-500A actuator gear train, accomplish the following: (a) Within the next 100 hours time-in-service after the effective date of this AD and thereafter at intervals not to exceed 100 hours time-in-service, inspect the ARC PA-500A actuator in accordance with Dornier Service Bulletin No. 1069-2820, dated May 27, 1980, which incorporates ARC Field Engineering Service Bulletin No. 181. Prior to further flight correct any unsafe condition noted by adjustment or replacement of parts as necessary. (b) Within 12 months after the effective date of this AD, modify the ARC Model PA- 500A actuator(s) in accordance with Dornier Service Bulletin No. 1069-2820, dated May 27, 1980, which incorporates ARC Field Engineering Service Bulletin No. 181. (c) The inspections required by paragraph (a) of this AD may be discontinued when the modifications required in paragraph (b) of this AD have been accomplished. (d) Airplanes may be flown in accordance with FAR 21.197 to a location where this AD may be accomplished. (e) The intervals between repetitive inspections required by this AD may be adjusted up to 10 hours time-in-service to allow them to be accomplished concurrent with other scheduled maintenance on the airplane. (f) An equivalent method of compliance with this AD may be used if approved by the Manager, Aircraft Certification Staff, AEU-100, Europe, Africa, and Middle East Office, FAA, c/o American Embassy, Brussels, Belgium. This amendment becomes effective on December 27, 1982. FOOTER:
Document Text
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AD Final Rules - DRS_82-26-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 82-26-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; DORNIER Model DO28D-1 Airplanes Subject: Autopilot Actuators Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 12/27/1982 Make: Dornier Luftfahrt GmbH Model: Do 28 D-1 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: 82-26-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4518 AD NUMBER: 82-26-04 SUBJECT HEADING: Airworthiness Directives; DORNIER Model DO28D-1 Airplanes ACTION: SUMMARY: DATES: Effective December 27, 1982. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 82-26-04 DORNIER: Amendment 39-4518. Applies to Model DO28D-1 (Serial Nos. 4036, 4037, 4050, 4055 through 4058, 4303, 4308 through 4318, 4321 through 4325, 4331 and 4332) airplanes, certificated in any category, when equipped with ARC PA-500A autopilot actuators. COMPLIANCE: Required as indicated, unless already accomplished. To prevent restriction of control movement due to jamming of the ARC PA-500A actuator gear train, accomplish the following: (a) Within the next 100 hours time-in-service after the effective date of this AD and thereafter at intervals not to exceed 100 hours time-in-service, inspect the ARC PA-500A actuator in accordance with Dornier Service Bulletin No. 1069-2820, dated May 27, 1980, which incorporates ARC Field Engineering Service Bulletin No. 181. Prior to further flight correct any unsafe condition noted by adjustment or replacement of parts as necessary. (b) Within 12 months after the effective date of this AD, modify the ARC Model PA- 500A actuator(s) in accordance with Dornier Service Bulletin No. 1069-2820, dated May 27, 1980, which incorporates ARC Field Engineering Service Bulletin No. 181. (c) The inspections required by paragraph (a) of this AD may be discontinued when the modifications required in paragraph (b) of this AD have been accomplished. (d) Airplanes may be flown in accordance with FAR 21.197 to a location where this AD may be accomplished. (e) The intervals between repetitive inspections required by this AD may be adjusted up to 10 hours time-in-service to allow them to be accomplished concurrent with other scheduled maintenance on the airplane. (f) An equivalent method of compliance with this AD may be used if approved by the Manager, Aircraft Certification Staff, AEU-100, Europe, Africa, and Middle East Office, FAA, c/o American Embassy, Brussels, Belgium. This amendment becomes effective on December 27, 1982. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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