AD 61-14-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Twin Commander Aircraft LLC | 500 | Airworthiness Directives; Aero Commander Model 500 Aircraft |
| aircraft | Twin Commander Aircraft LLC | 500-A | Airworthiness Directives; Aero Commander Model 500 Aircraft |
| aircraft | Twin Commander Aircraft LLC | 500-B | Airworthiness Directives; Aero Commander Model 500 Aircraft |
Unsafe Condition
Cracks in angles P/N 5620023-7, -8, -9, and -10 near Huck bolts attaching to upper and lower mount fittings P/N 3620025-1 and -2.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect angles P/N 5620023-7, -8, -9, and -10 near Huck bolts for cracks. If cracks found, incorporate reinforcement per Aero Commander Service Bulletin No. 68A or equivalent before further flight. Reinforced angles with FAA approval need not be reinspected.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 100 hours' time in service after the effective date of this directive and at each 100 hours' time in service thereafter
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Twin Commander Aircraft LLC Model 500, 500-A, 500-B aircraft with angles P/N 5620023-7, -8, -9, -10 and mount fittings P/N 3620025-1 and -2
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Engine Mount Inspection
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_61-14-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 61-14-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Aero Commander Model 500 Aircraft Subject: Engine Mount Inspection Status: Current Citation: Federal Register: July 7, 1961 Citation Publish Date: 07/07/1961 Effective Date: 08/08/1961 Make: Twin Commander Aircraft LLC Model: 500 | 500-A | 500-B Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 61-14-01 CITATION: [Federal Register: July 7, 1961] PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 61-14-01 SUBJECT HEADING: Airworthiness Directives; Aero Commander Model 500 Aircraft ACTION: SUMMARY: DATES: Effective August 8, 1961. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 61-14-01 AERO COMMANDER: Amdt. 303 Part 507 Federal Register July 7, 1961. Applies to All Model 500 Aircraft. Compliance required within the next 100 hours' time in service after the effective date of this directive and at each 100 hours' time in service thereafter. Visually inspect the inside of angles P/N 5620023-7, -8, -9, and -10 in the area of the row of Huck bolts, nearest the radius of the angle, that attach the angles to the upper and lower mount fittings, P/N 3620025-1 and -2. If cracks are found, prior to further flight, incorporate the reinforcement as indicated in Aero Commander Service Bulletin No. 68A, dated January 20, 1961, or equivalent. Angles incorporating Federal Aviation Agency approved reinforcement need not be reinspected in accordance with the provisions of this AD. (Aero Commander Service Bulletin No. 68A dated January 20, 1961, covers this subject.) This supersedes AD 60-26-01. This directive effective August 8, 1961. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_61-14-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 61-14-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Aero Commander Model 500 Aircraft Subject: Engine Mount Inspection Status: Current Citation: Federal Register: July 7, 1961 Citation Publish Date: 07/07/1961 Effective Date: 08/08/1961 Make: Twin Commander Aircraft LLC Model: 500 | 500-A | 500-B Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 61-14-01 CITATION: [Federal Register: July 7, 1961] PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 61-14-01 SUBJECT HEADING: Airworthiness Directives; Aero Commander Model 500 Aircraft ACTION: SUMMARY: DATES: Effective August 8, 1961. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 61-14-01 AERO COMMANDER: Amdt. 303 Part 507 Federal Register July 7, 1961. Applies to All Model 500 Aircraft. Compliance required within the next 100 hours' time in service after the effective date of this directive and at each 100 hours' time in service thereafter. Visually inspect the inside of angles P/N 5620023-7, -8, -9, and -10 in the area of the row of Huck bolts, nearest the radius of the angle, that attach the angles to the upper and lower mount fittings, P/N 3620025-1 and -2. If cracks are found, prior to further flight, incorporate the reinforcement as indicated in Aero Commander Service Bulletin No. 68A, dated January 20, 1961, or equivalent. Angles incorporating Federal Aviation Agency approved reinforcement need not be reinspected in accordance with the provisions of this AD. (Aero Commander Service Bulletin No. 68A dated January 20, 1961, covers this subject.) This supersedes AD 60-26-01. This directive effective August 8, 1961. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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