AD 65-10-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Maryland Air Industries, Inc. | F-27 | Airworthiness Directives; FAIRCHILD Model F-27 Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27A | Airworthiness Directives; FAIRCHILD Model F-27 Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27B | Airworthiness Directives; FAIRCHILD Model F-27 Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27F | Airworthiness Directives; FAIRCHILD Model F-27 Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27G | Airworthiness Directives; FAIRCHILD Model F-27 Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27J | Airworthiness Directives; FAIRCHILD Model F-27 Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27M | Airworthiness Directives; FAIRCHILD Model F-27 Aircraft |
Unsafe Condition
Failure of the flap asymmetry warning system due to inadequate design of the center hinge wing flap asymmetry switches, part number 658-001, which may not provide proper warning of flap asymmetry.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the aircraft in accordance with Fairchild Service Bulletin No. 27-19, or Service Bulletin No. 27-26 (Revision 1 dated March 1, 1965), or an equivalent approved by the FAA. Compliance must be completed within 25 hours' time in service after the AD's effective date, with possible adjustments upon FAA approval.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 25 hours' time in service after the effective date of this AD
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Affected Aircraft
Maryland Air Industries, Inc. Model F-27, F-27A, F-27B, F-27F, F-27G, F-27J, F-27M aircraft with Center Hinge Wing Flap Asymmetry Switches, part number 658-001.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Flap Asymmetry Warning System
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_65-10-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 65-10-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; FAIRCHILD Model F-27 Aircraft Subject: Flap Asymmetry Warning System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 05/08/1965 Make: Maryland Air Industries, Inc. Model: F-27 | F-27A | F-27B | F-27F | F-27G | F-27J | F-27M 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: 65-10-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-64 AD NUMBER: 65-10-01 SUBJECT HEADING: Airworthiness Directives; FAIRCHILD Model F-27 Aircraft ACTION: SUMMARY: DATES: Effective May 8, 1965. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 65-10-01 FAIRCHILD: Amdt. 39-64 Part 39 Federal Register May 8, 1965. Applies to Model F-27 Aircraft with Center Hinge Wing Flap Asymmetry Switches, P/N 658-001. Compliance required within 25 hours' time in service after the effective date of this AD, unless already accomplished. (a) Modify aircraft in accordance with Fairchild Service Bulletin No. 27-19, dated June 6, 1960, or Service Bulletin No. 27-26, dated September 9, 1960, Revision 1, dated March 1, 1965, or an equivalent approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. (b) Upon request of an operator, an FAA maintenance inspector, subject to prior approval of the Chief, Engineering and Manufacturing Branch, FAA Eastern Region, may adjust the compliance time specified in this AD if the request contains substantiating data to justify the increase for such operator. This directive effective upon publication in the Federal Register for all persons except those to whom it was made effective immediately by telegram dated April 23, 1965. FOOTER:
Document Text
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AD Final Rules - DRS_65-10-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 65-10-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; FAIRCHILD Model F-27 Aircraft Subject: Flap Asymmetry Warning System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 05/08/1965 Make: Maryland Air Industries, Inc. Model: F-27 | F-27A | F-27B | F-27F | F-27G | F-27J | F-27M 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: 65-10-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-64 AD NUMBER: 65-10-01 SUBJECT HEADING: Airworthiness Directives; FAIRCHILD Model F-27 Aircraft ACTION: SUMMARY: DATES: Effective May 8, 1965. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 65-10-01 FAIRCHILD: Amdt. 39-64 Part 39 Federal Register May 8, 1965. Applies to Model F-27 Aircraft with Center Hinge Wing Flap Asymmetry Switches, P/N 658-001. Compliance required within 25 hours' time in service after the effective date of this AD, unless already accomplished. (a) Modify aircraft in accordance with Fairchild Service Bulletin No. 27-19, dated June 6, 1960, or Service Bulletin No. 27-26, dated September 9, 1960, Revision 1, dated March 1, 1965, or an equivalent approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. (b) Upon request of an operator, an FAA maintenance inspector, subject to prior approval of the Chief, Engineering and Manufacturing Branch, FAA Eastern Region, may adjust the compliance time specified in this AD if the request contains substantiating data to justify the increase for such operator. This directive effective upon publication in the Federal Register for all persons except those to whom it was made effective immediately by telegram dated April 23, 1965. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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