AD 91-14-11
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | BAE Systems (Operations) Limited | ATP | Airworthiness Directives; British Aerospace Model ATP Series Airplanes |
Unsafe Condition
Loss of the main landing gear (MLG) wheel from the axle and reduced controllability of the airplane on takeoff or landing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install a new axle washer and a new axle nut on all MLG's in accordance with Dowty Aerospace Service Bulletin 200-32-137. An alternative method of compliance or adjustment of the compliance time may be used when approved by the FAA. Special flight permits may be issued under FAR 21.197 and 21.199 to operate airplanes to a base for compliance.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 60 days after the effective date of this AD, unless previously accomplished.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Model ATP series airplanes, on which Modification (c)AC11431 has not been accomplished, certificated in any category.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Main Landing Gear
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_91-14-11.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 91-14-11 Document Type: AD Final Rules Docket Number: 91-NM-37-AD Subject Heading: Airworthiness Directives; British Aerospace Model ATP Series Airplanes Subject: Main Landing Gear Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/06/1991 Make: BAE Systems (Operations) Limited Model: ATP Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 91-14-11 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 91-NM-37-AD AMENDMENT: 39-7052 AD NUMBER: 91-14-11 SUBJECT HEADING: Airworthiness Directives; British Aerospace Model ATP Series Airplanes ACTION: SUMMARY: DATES: Effective on August 6, 1991. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 91-14-11 BRITISH AEROSPACE: Amendment 39-7052. Docket No. 91-NM-37-AD. Applicability: Model ATP series airplanes, on which Modification (c)AC11431 has not been accomplished, certificated in any category. Compliance: Required within 60 days after the effective date of this AD, unless previously accomplished. To prevent loss of the main landing gear (MLG) wheel from the axle and reduced controllability of the airplane on takeoff or landing, accomplish the following: A. Install a new axle washer and a new axle nut on all MLG's [Modification (c)AC11431], in accordance with Dowty Aerospace Service Bulletin 200-32-137, dated November 6, 1990. NOTE: British Aerospace Service Bulletin ATP-32-28, dated November 6, 1990, references the Dowty Aerospace Service Bulletin for modification instructions. B. An alternative method of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Standardization Branch, ANM-113. C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD. D. The installation requirements shall be done in accordance with Dowty Aerospace Service Bulletin 200-32-137, dated November 6, 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 British Aerospace, PLC, Librarian for Service Bulletins, P.O. Box 17414, Dulles International Airport, Washington, D.C. 20041-0414. Copies may be inspected at the FAA, Transport Airplane Directorate, Renton, Washington; or at the Office of the Federal Register, 1100 L Street N.W., Room 8401, Washington, D.C. This amendment (39-7052, AD 91-14-11) becomes effective on August 6, 1991. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_91-14-11.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 91-14-11 Document Type: AD Final Rules Docket Number: 91-NM-37-AD Subject Heading: Airworthiness Directives; British Aerospace Model ATP Series Airplanes Subject: Main Landing Gear Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/06/1991 Make: BAE Systems (Operations) Limited Model: ATP 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 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 91-14-11 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 91-NM-37-AD AMENDMENT: 39-7052 AD NUMBER: 91-14-11 SUBJECT HEADING: Airworthiness Directives; British Aerospace Model ATP Series Airplanes ACTION: SUMMARY: DATES: Effective on August 6, 1991. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 91-14-11 BRITISH AEROSPACE: Amendment 39-7052. Docket No. 91-NM-37-AD. Applicability: Model ATP series airplanes, on which Modification (c)AC11431 has not been accomplished, certificated in any category. Compliance: Required within 60 days after the effective date of this AD, unless previously accomplished. To prevent loss of the main landing gear (MLG) wheel from the axle and reduced controllability of the airplane on takeoff or landing, accomplish the following: A. Install a new axle washer and a new axle nut on all MLG's [Modification (c)AC11431], in accordance with Dowty Aerospace Service Bulletin 200-32-137, dated November 6, 1990. NOTE: British Aerospace Service Bulletin ATP-32-28, dated November 6, 1990, references the Dowty Aerospace Service Bulletin for modification instructions. B. An alternative method of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Standardization Branch, ANM-113. C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD. D. The installation requirements shall be done in accordance with Dowty Aerospace Service Bulletin 200-32-137, dated November 6, 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 British Aerospace, PLC, Librarian for Service Bulletins, P.O. Box 17414, Dulles International Airport, Washington, D.C. 20041-0414. Copies may be inspected at the FAA, Transport Airplane Directorate, Renton, Washington; or at the Office of the Federal Register, 1100 L Street N.W., Room 8401, Washington, D.C. This amendment (39-7052, AD 91-14-11) becomes effective on August 6, 1991. FOOTER:
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