AD 68-08-01
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | McCauley Propeller Systems | 2A34C | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| aircraft | McCauley Propeller Systems | 2A36C23 | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| aircraft | McCauley Propeller Systems | 2A36C29 | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| aircraft | McCauley Propeller Systems | 2A36C82 | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| aircraft | McCauley Propeller Systems | 2D34C | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| aircraft | McCauley Propeller Systems | 3A32C76 | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| aircraft | McCauley Propeller Systems | B2A36C31 | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| aircraft | McCauley Propeller Systems | C2A36C32 | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| aircraft | McCauley Propeller Systems | D2A34C | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| aircraft | McCauley Propeller Systems | D2A36C31 | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| propeller | McCauley Propeller Systems | 2A34C | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| propeller | McCauley Propeller Systems | 2A36C23 | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| propeller | McCauley Propeller Systems | 2A36C29 | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| propeller | McCauley Propeller Systems | 2A36C82 | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| propeller | McCauley Propeller Systems | 2D34C | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| propeller | McCauley Propeller Systems | 3A32C76 | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| propeller | McCauley Propeller Systems | B2A36C31 | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| propeller | McCauley Propeller Systems | C2A36C32 | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| propeller | McCauley Propeller Systems | D2A34C | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| propeller | McCauley Propeller Systems | D2A36C31 | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| propeller | McCauley Propeller Systems | D2A36C33 | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| propeller | McCauley Propeller Systems | D2A36C45 | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| propeller | McCauley Propeller Systems | D3A32C77 | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| propeller | McCauley Propeller Systems | D3A32C79 | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| propeller | McCauley Propeller Systems | D3A32C88 | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| propeller | McCauley Propeller Systems | D3A32C90 | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
| propeller | McCauley Propeller Systems | E2A34C | MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models |
Unsafe Condition
Failure of the propeller cylinder attach screws
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Required Actions
Modify propeller cylinder attachment in accordance with McCauley Service Bulletin No. 92 (or later FAA-approved revision) unless used on Bellanca Aircraft Models 17-30 and 17-30A, which require Service Bulletin No. 94. Equivalent methods must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region.
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 AD
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Affected Aircraft
McCauley Propeller Systems models 2D34C8, C2A36C32, D2A34C58-B, 3A32C76-S, D2A34C78-K and others listed, with hub serial numbers 59000 up to and including 712778 except specific excluded numbers
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Federal Register Abstract
Cylinder Attach Screws
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_68-08-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 68-08-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models Subject: Cylinder Attach Screws Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/21/1972 Make: McCauley Propeller Systems Model: 2A34C | 2A36C23 | 2A36C29 | 2A36C82 | 2D34C | 3A32C76 | B2A36C31 | C2A36C32 | D2A34C | D2A36C31 | D2...Show more 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: 68-08-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1377 AD NUMBER: 68-08-01 SUBJECT HEADING: MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models ACTION: SUMMARY: DATES: Effective January 21, 1972. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 68-08-01 MCCAULEY AIRCRAFT PROPELLERS: Amdt. 39-581 as amended by Amendment 39-1314 is further amended by Amendment 39-1377. Applies to the following two- and three-bladed constant speed propeller models with hub serial numbers indicated below: PROPELLER MODELS 2D34C8 C2A36C32 D2A34C58-B 3A32C76-S D2A34C78-K 2D34C8-A C2A36C32-A D2A34C58-J 3A32C76-T D2A34C78-L 2D34C8-J C2A36C32-D D2A34C58-K 3A32C76-AD D2A34C78-M 2D34C8-K D2A36C33 D2A34C58-L 3A32C76-AS D3A32C79 2D34C8-M D2A36C33-D D2A34C58-M 3A32C76-AT D3A32C79-A 2A36C23-C D2A36C45 2A34C66 3A32C76-FD D3A32C79-B 2A36C23-CD D2A36C45-D 2A34C66-A 3A32C76-FS D3A32C79-F 2A36C23-CH D2A34C49 2A34C66-B 3A32C76-FT D3A32C79-J 2A36C23-CJ D2A34C49-A 2A34C66-C 3A32C76-JD D3A32C79-K 2A36C23-CP D2A34C49-B 2A34C66-J 3A32C76-JS 2A36C82-T 2A36C23-CS D2A34C49-J 2A34C66-K 3A32C76-JT 2A36C82-DT 2A36C23-DD D2A34C49-K 2A34C66-L 3A32C76-KD D3A32C88 2A36C23-DH D2A34C49-L 2A34C66-M 3A32C76-KS D3A32C88-A 2A36C23-DJ D2A34C49-M E2A34C70 3A32C76-KT D3A32C88-F 2A36C23-DP 2A34C50 E2A34C70-A D3A32C77 D3A32C88-J 2A36C29 2A34C50-A E2A34C70-J D3A32C77-A D3A32C88-K 2A36C29-A 2A34C50-B E2A34C70-K D3A32C77-F D3A32C90 2A36C29-D 2A34C50-J E2A34C70-M D2A32C77-J D3A32C90-A B2A36C31 2A34C50-K E2A34C73 D3A32C77-K D3A32C90-B B2A36C31-A 2A34C50-L E2A34C73-A D2A34C78 D3A32C90-C B2A36C31-D 2A34C50-M E2A34C73-J D2A34C78-A D3A32C90-F D2A36C31-A D2A34C58 E2A34C73-K D2A34C78-B D3A32C90-J D2A36C31-D D2A34C58-A E2A34C73-M D2A34C78-J D3A32C90-K 3A32C76-D HUB SERIAL NUMBERS 59000 up to and including 712778 except 700492, 700500 thru 700558; 700561 thru 700568; 700570 thru 700594; 700596 thru 701050 and 701053 Compliance required within the next 100 hours' time in service after the effective date of this AD, unless already accomplished. To prevent failure of the propeller cylinder attach screws, accomplish the following: Modify propeller cylinder attachment in accordance with McCauley Service Bulletin No. 92, dated April 21, 1971, or later FAA-approved revision. However, for propellers used on Bellanca Aircraft Models 17-30 and 17-30A modify propeller cylinder attachment in accordance with McCauley Service Bulletin No. 94, dated July 28, 1971, or later FAA-approved revision instead of Service Bulletin No. 92. Equivalent methods of compliance with this AD must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region. Amendment 39-581 was effective April 11, 1968. Amendment 39-1314 was effective October 14, 1971. This Amendment 39-1377 is effective January 21, 1972. FOOTER:
Document Text
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AD Final Rules - DRS_68-08-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 68-08-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models Subject: Cylinder Attach Screws Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/21/1972 Make: McCauley Propeller Systems Model: 2A34C | 2A36C23 | 2A36C29 | 2A36C82 | 2D34C | 3A32C76 | B2A36C31 | C2A36C32 | D2A34C | D2A36C31 | D2...Show more 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: 68-08-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1377 AD NUMBER: 68-08-01 SUBJECT HEADING: MCCAULEY AIRCRAFT PROPELLERS two- and three-bladed constant speed propeller models ACTION: SUMMARY: DATES: Effective January 21, 1972. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 68-08-01 MCCAULEY AIRCRAFT PROPELLERS: Amdt. 39-581 as amended by Amendment 39-1314 is further amended by Amendment 39-1377. Applies to the following two- and three-bladed constant speed propeller models with hub serial numbers indicated below: PROPELLER MODELS 2D34C8 C2A36C32 D2A34C58-B 3A32C76-S D2A34C78-K 2D34C8-A C2A36C32-A D2A34C58-J 3A32C76-T D2A34C78-L 2D34C8-J C2A36C32-D D2A34C58-K 3A32C76-AD D2A34C78-M 2D34C8-K D2A36C33 D2A34C58-L 3A32C76-AS D3A32C79 2D34C8-M D2A36C33-D D2A34C58-M 3A32C76-AT D3A32C79-A 2A36C23-C D2A36C45 2A34C66 3A32C76-FD D3A32C79-B 2A36C23-CD D2A36C45-D 2A34C66-A 3A32C76-FS D3A32C79-F 2A36C23-CH D2A34C49 2A34C66-B 3A32C76-FT D3A32C79-J 2A36C23-CJ D2A34C49-A 2A34C66-C 3A32C76-JD D3A32C79-K 2A36C23-CP D2A34C49-B 2A34C66-J 3A32C76-JS 2A36C82-T 2A36C23-CS D2A34C49-J 2A34C66-K 3A32C76-JT 2A36C82-DT 2A36C23-DD D2A34C49-K 2A34C66-L 3A32C76-KD D3A32C88 2A36C23-DH D2A34C49-L 2A34C66-M 3A32C76-KS D3A32C88-A 2A36C23-DJ D2A34C49-M E2A34C70 3A32C76-KT D3A32C88-F 2A36C23-DP 2A34C50 E2A34C70-A D3A32C77 D3A32C88-J 2A36C29 2A34C50-A E2A34C70-J D3A32C77-A D3A32C88-K 2A36C29-A 2A34C50-B E2A34C70-K D3A32C77-F D3A32C90 2A36C29-D 2A34C50-J E2A34C70-M D2A32C77-J D3A32C90-A B2A36C31 2A34C50-K E2A34C73 D3A32C77-K D3A32C90-B B2A36C31-A 2A34C50-L E2A34C73-A D2A34C78 D3A32C90-C B2A36C31-D 2A34C50-M E2A34C73-J D2A34C78-A D3A32C90-F D2A36C31-A D2A34C58 E2A34C73-K D2A34C78-B D3A32C90-J D2A36C31-D D2A34C58-A E2A34C73-M D2A34C78-J D3A32C90-K 3A32C76-D HUB SERIAL NUMBERS 59000 up to and including 712778 except 700492, 700500 thru 700558; 700561 thru 700568; 700570 thru 700594; 700596 thru 701050 and 701053 Compliance required within the next 100 hours' time in service after the effective date of this AD, unless already accomplished. To prevent failure of the propeller cylinder attach screws, accomplish the following: Modify propeller cylinder attachment in accordance with McCauley Service Bulletin No. 92, dated April 21, 1971, or later FAA-approved revision. However, for propellers used on Bellanca Aircraft Models 17-30 and 17-30A modify propeller cylinder attachment in accordance with McCauley Service Bulletin No. 94, dated July 28, 1971, or later FAA-approved revision instead of Service Bulletin No. 92. Equivalent methods of compliance with this AD must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region. Amendment 39-581 was effective April 11, 1968. Amendment 39-1314 was effective October 14, 1971. This Amendment 39-1377 is effective January 21, 1972. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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