AD 65-13-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Maryland Air Industries, Inc. | F-27 | Airworthiness Directives; Fairchild Model F-27 Series Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27A | Airworthiness Directives; Fairchild Model F-27 Series Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27B | Airworthiness Directives; Fairchild Model F-27 Series Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27F | Airworthiness Directives; Fairchild Model F-27 Series Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27G | Airworthiness Directives; Fairchild Model F-27 Series Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27J | Airworthiness Directives; Fairchild Model F-27 Series Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27M | Airworthiness Directives; Fairchild Model F-27 Series Aircraft |
Unsafe Condition
The flap asymmetry system's old asymmetric switches (P/N 472-001-1 and -2) may fail, leading to potential flap asymmetry during operation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove old asymmetric switches P/N 472-001-1 and -2, rework outboard flap and asymmetric switches with teleflex units per Fairchild Service Bulletin 27-26, install asymmetric override toggle switch at cockpit pedestal, and rewire aircraft for new asymmetry switches and override switch.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 500 hours' time in service after the effective date of this AD, unless already accomplished
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Affected Aircraft
Maryland Air Industries, Inc. Model F-27 Aircraft Serial Numbers 1 to 39 inclusive, 41 to 45 inclusive, and 47
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Flap Asymmetry System
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_65-13-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 65-13-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Fairchild Model F-27 Series Aircraft Subject: Flap Asymmetry System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 06/17/1965 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: 65-13-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-82 AD NUMBER: 65-13-02 SUBJECT HEADING: Airworthiness Directives; Fairchild Model F-27 Series Aircraft ACTION: SUMMARY: DATES: Effective June 17, 1965. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 65-13-02 FAIRCHILD: Amdt. 39-82 Part 39 Federal Register June 17, 1965. Applies to Model F-27 Aircraft Serial Numbers 1 to 39 inclusive, 41 to 45 inclusive, and 47. Compliance required within the next 500 hours' time in service after the effective date of this AD, unless already accomplished. (a) Remove old asymmetric switches, P/N's 472-001-1 and -2, located on each outboard flap gear box at Wing Station 394. (b) Accomplish the following modifications in accordance with paragraph 2, "Accomplishment Instructions", of Fairchild Service Bulletin No. 27-26, dated September 9, 1960, Revision 2, dated April 26, 1965, or later FAA-approved revision, or equivalent approved by the FAA Eastern Region, Engineering and Manufacturing Division: (1) Rework the outboard flap and asymmetric switches, P/N 658-001, with the teleflex units. (2) Install asymmetric override toggle switch at the cockpit pedestal and rewire aircraft for the new asymmetry switches and the override switch. (c) 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 June 17, 1965. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_65-13-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 65-13-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Fairchild Model F-27 Series Aircraft Subject: Flap Asymmetry System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 06/17/1965 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: 65-13-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-82 AD NUMBER: 65-13-02 SUBJECT HEADING: Airworthiness Directives; Fairchild Model F-27 Series Aircraft ACTION: SUMMARY: DATES: Effective June 17, 1965. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 65-13-02 FAIRCHILD: Amdt. 39-82 Part 39 Federal Register June 17, 1965. Applies to Model F-27 Aircraft Serial Numbers 1 to 39 inclusive, 41 to 45 inclusive, and 47. Compliance required within the next 500 hours' time in service after the effective date of this AD, unless already accomplished. (a) Remove old asymmetric switches, P/N's 472-001-1 and -2, located on each outboard flap gear box at Wing Station 394. (b) Accomplish the following modifications in accordance with paragraph 2, "Accomplishment Instructions", of Fairchild Service Bulletin No. 27-26, dated September 9, 1960, Revision 2, dated April 26, 1965, or later FAA-approved revision, or equivalent approved by the FAA Eastern Region, Engineering and Manufacturing Division: (1) Rework the outboard flap and asymmetric switches, P/N 658-001, with the teleflex units. (2) Install asymmetric override toggle switch at the cockpit pedestal and rewire aircraft for the new asymmetry switches and the override switch. (c) 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 June 17, 1965. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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