AD 71-17-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | McCauley Propeller Systems | D3A32C77 | MCCAULEY AIRCRAFT Propellers |
| aircraft | McCauley Propeller Systems | D3A32C79 | MCCAULEY AIRCRAFT Propellers |
| aircraft | McCauley Propeller Systems | D3A32C88 | MCCAULEY AIRCRAFT Propellers |
| aircraft | McCauley Propeller Systems | D3A32C90 | MCCAULEY AIRCRAFT Propellers |
| propeller | McCauley Propeller Systems | D3A32C77 | MCCAULEY AIRCRAFT Propellers |
| propeller | McCauley Propeller Systems | D3A32C79 | MCCAULEY AIRCRAFT Propellers |
| propeller | McCauley Propeller Systems | D3A32C88 | MCCAULEY AIRCRAFT Propellers |
| propeller | McCauley Propeller Systems | D3A32C90 | MCCAULEY AIRCRAFT Propellers |
Unsafe Condition
Hubs on McCauley propeller models D3A32C77, D3A32C79, D3A32C88, D3A32C90 with specific serial numbers may fail due to fatigue cracking in the hub flange area, leading to propeller failure.
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Required Actions
Replace hubs with serviceable models listed in McCauley Service Bulletin No. 89 or rework hubs per the service bulletin's instructions. Compliance must be completed within specified hours in service based on usage.
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Compliance Time
Within the next 25 hours in service after August 18, 1971, for propellers with 600+ hours, or prior to 625 hours in service for those with less than 600 hours.
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Affected Aircraft
McCauley Propeller Systems models D3A32C77, D3A32C79, D3A32C88, D3A32C90 with hub serial numbers 650000 to 686370 (excluding specified exceptions) installed on Cessna 206 series aircraft with Continental IO-520 engines.
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Federal Register Abstract
Hubs
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_71-17-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 71-17-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: MCCAULEY AIRCRAFT Propellers Subject: Hubs Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/18/1971 Make: McCauley Propeller Systems Model: D3A32C77 | D3A32C79 | D3A32C88 | D3A32C90 Product Type: Propeller Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 71-17-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1265 AD NUMBER: 71-17-03 SUBJECT HEADING: MCCAULEY AIRCRAFT Propellers ACTION: SUMMARY: DATES: Effective August 18, 1971. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 71-17-03 MCCAULEY AIRCRAFT: Amendment 39-1265. Applies to following propeller models with hub serial numbers installed on Cessna 206, U206, and P206 series aircraft with Continental IO-520 series engines. PROPELLER MODELS D3A32C77/82NK-2 D3A32C88-A/82NC-2 D3A32C77-A/82NK-2 D3A32C88-F/82NC-2 D3A32C77-F/82NK-2 D3A32C88-J/82NC-2 D3A32C77-J/82NK-2 D3A32C90/82NC-2 D3A32C79/82NK-2 D3A32C90-A/82NC-2 D3A32C79-A/82NK-2 D3A32C90-B/82NC-2 D3A32C79-B/82NK-2 D3A32C90-C/82NC-2 D3A32C79-F/82NK-2 D3A32C90-F/82NC-2 D3A32C79-J/82NK-2 D3A32C90-J/82NC-2 D3A32C88/82NC-2 HUB SERIAL NUMBERS 650000 up to and including 686370 except for the following serial numbers: 685222 thru 685238 685977 thru 685982 685290 686087 685391 and 685392 686082 thru 686084 685408 686181 and 686182 685557 and 685558 686210 thru 686214 685848 thru 685855 686367 thru 686369 685907 thru 685918 Compliance required as indicated, unless already accomplished. a. Propellers with 600 or more total hours in service replace or rework hubs in accordance with paragraphs c or d within the next 25 hours in service after the effective date of this airworthiness directive. b. Propellers with less than 600 total hours in service replace or rework hubs in accordance with paragraphs c or d prior to the accumulation of 625 hours in service. c. Replace the following hubs with a serviceable hub model listed in Table IV of McCauley Service Bulletin No. 89 dated 14 May 1971 or later FAA approved revision, or with a D3A32C77-KLM, LM, or -M; D3A32C79-KLM, LM, or -M; D3A32C88-KLM, -LM, or -M, or D3A32C90-KLM, -LM or -M model: HUB MODELS D3A32C79, D3A32C79-A, D3A32C90, D3A32C90-A, D3A32C90-B HUB SERIAL NUMBERS 650000 up to and including 670855 d. Rework the following hub models in accordance with paragraph 3, page 2 of McCauley Service Bulletin No. 89 dated 14 May 1971 or later FAA approved revision, or an equivalent method approved by the Chief, Engineering and Manufacturing Division, FAA Eastern Region. D3A32C77 D3A32C88-A D3A32C77-A D3A32C88-F D3A32C77-F D3A32C88-J D3A32C77-J D3A32C90-B D3A32C79-B D3A32C90-C D3A32C79-F D3A32C90-F D3A32C79-J D3A32C90-J D3A32C88 NOTE: Cessna Service Letter SE71-15 also covers this subject. This amendment is effective August 18, 1971. FOOTER:
Document Text
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AD Final Rules - DRS_71-17-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 71-17-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: MCCAULEY AIRCRAFT Propellers Subject: Hubs Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/18/1971 Make: McCauley Propeller Systems Model: D3A32C77 | D3A32C79 | D3A32C88 | D3A32C90 Product Type: Propeller Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 71-17-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1265 AD NUMBER: 71-17-03 SUBJECT HEADING: MCCAULEY AIRCRAFT Propellers ACTION: SUMMARY: DATES: Effective August 18, 1971. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 71-17-03 MCCAULEY AIRCRAFT: Amendment 39-1265. Applies to following propeller models with hub serial numbers installed on Cessna 206, U206, and P206 series aircraft with Continental IO-520 series engines. PROPELLER MODELS D3A32C77/82NK-2 D3A32C88-A/82NC-2 D3A32C77-A/82NK-2 D3A32C88-F/82NC-2 D3A32C77-F/82NK-2 D3A32C88-J/82NC-2 D3A32C77-J/82NK-2 D3A32C90/82NC-2 D3A32C79/82NK-2 D3A32C90-A/82NC-2 D3A32C79-A/82NK-2 D3A32C90-B/82NC-2 D3A32C79-B/82NK-2 D3A32C90-C/82NC-2 D3A32C79-F/82NK-2 D3A32C90-F/82NC-2 D3A32C79-J/82NK-2 D3A32C90-J/82NC-2 D3A32C88/82NC-2 HUB SERIAL NUMBERS 650000 up to and including 686370 except for the following serial numbers: 685222 thru 685238 685977 thru 685982 685290 686087 685391 and 685392 686082 thru 686084 685408 686181 and 686182 685557 and 685558 686210 thru 686214 685848 thru 685855 686367 thru 686369 685907 thru 685918 Compliance required as indicated, unless already accomplished. a. Propellers with 600 or more total hours in service replace or rework hubs in accordance with paragraphs c or d within the next 25 hours in service after the effective date of this airworthiness directive. b. Propellers with less than 600 total hours in service replace or rework hubs in accordance with paragraphs c or d prior to the accumulation of 625 hours in service. c. Replace the following hubs with a serviceable hub model listed in Table IV of McCauley Service Bulletin No. 89 dated 14 May 1971 or later FAA approved revision, or with a D3A32C77-KLM, LM, or -M; D3A32C79-KLM, LM, or -M; D3A32C88-KLM, -LM, or -M, or D3A32C90-KLM, -LM or -M model: HUB MODELS D3A32C79, D3A32C79-A, D3A32C90, D3A32C90-A, D3A32C90-B HUB SERIAL NUMBERS 650000 up to and including 670855 d. Rework the following hub models in accordance with paragraph 3, page 2 of McCauley Service Bulletin No. 89 dated 14 May 1971 or later FAA approved revision, or an equivalent method approved by the Chief, Engineering and Manufacturing Division, FAA Eastern Region. D3A32C77 D3A32C88-A D3A32C77-A D3A32C88-F D3A32C77-F D3A32C88-J D3A32C77-J D3A32C90-B D3A32C79-B D3A32C90-C D3A32C79-F D3A32C90-F D3A32C79-J D3A32C90-J D3A32C88 NOTE: Cessna Service Letter SE71-15 also covers this subject. This amendment is effective August 18, 1971. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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