AD 59-17-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Revo, Incorporated | Colonial C-1 | Airworthiness Directives; Colonial Models C-1 and C-2 Aircraft |
| aircraft | Revo, Incorporated | Colonial C-2 | Airworthiness Directives; Colonial Models C-1 and C-2 Aircraft |
Unsafe Condition
Failures in service of the two AN 4 bolts attaching the wing rear spar to the hull on each side at hull Station 138.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove, inspect, and replace, if damaged, the two AN 4 bolts. Remove only one bolt per side at a time and replace before removing the other bolt. Ensure torque does not exceed 70 inch-pounds.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 10 hours but not later than October 15, 1959, and at each 100 hours thereafter
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Revo, Incorporated Colonial C-1 and Colonial C-2 aircraft, all serial numbers
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Wing Spar Attaching Bolts
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_59-17-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 59-17-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Colonial Models C-1 and C-2 Aircraft Subject: Wing Spar Attaching Bolts Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Revo, Incorporated Model: Colonial C-1 | Colonial C-2 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 59-17-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 59-17-04 SUBJECT HEADING: Airworthiness Directives; Colonial Models C-1 and C-2 Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 59-17-04 COLONIAL: Applies to All Models C-1 and C-2 Aircraft. Compliance required within the next 10 hours but not later than October 15, 1959, and at each 100 hours thereafter. Due to failures in service, remove, inspect, and replace, if damaged, the two AN 4 bolts attaching the wing rear spar to the hull on each side at hull Station 138. The bolts are located adjacent to the inboard flap hinge and are accessible through the wheel wells. Remove only one bolt per side at a time and replace before removing the other bolt. The torque applied to these bolts shall not exceed 70 inch-pounds. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_59-17-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 59-17-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Colonial Models C-1 and C-2 Aircraft Subject: Wing Spar Attaching Bolts Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Revo, Incorporated Model: Colonial C-1 | Colonial C-2 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: AIRWORTHINESS DIRECTIVES FINAL RULES: 59-17-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 59-17-04 SUBJECT HEADING: Airworthiness Directives; Colonial Models C-1 and C-2 Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 59-17-04 COLONIAL: Applies to All Models C-1 and C-2 Aircraft. Compliance required within the next 10 hours but not later than October 15, 1959, and at each 100 hours thereafter. Due to failures in service, remove, inspect, and replace, if damaged, the two AN 4 bolts attaching the wing rear spar to the hull on each side at hull Station 138. The bolts are located adjacent to the inboard flap hinge and are accessible through the wheel wells. Remove only one bolt per side at a time and replace before removing the other bolt. The torque applied to these bolts shall not exceed 70 inch-pounds. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.
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