AD 77-26-03
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | McCauley Propeller Systems | D3A34C401 | MCCAULEY PROPELLERS Model D3A34C401 and D3A34C402 Propellers |
| aircraft | McCauley Propeller Systems | D3A34C402 | MCCAULEY PROPELLERS Model D3A34C401 and D3A34C402 Propellers |
| propeller | McCauley Propeller Systems | D3A34C401 | MCCAULEY PROPELLERS Model D3A34C401 and D3A34C402 Propellers |
| propeller | McCauley Propeller Systems | D3A34C402 | MCCAULEY PROPELLERS Model D3A34C401 and D3A34C402 Propellers |
Unsafe Condition
Blade pitch control failures due to cadmium plated blade actuating pin screws (P/N A-1635-104) which may corrode or fail.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Compliance required before further flight, except under FAR 21.197 to an FAA repair station.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Blade Pitch Controls
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_77-26-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 77-26-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: MCCAULEY PROPELLERS Model D3A34C401 and D3A34C402 Propellers Subject: Blade Pitch Controls Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 06/07/1978 Make: McCauley Propeller Systems Model: D3A34C401 | D3A34C402 Product Type: Propeller Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 77-26-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3232 AD NUMBER: 77-26-03 SUBJECT HEADING: MCCAULEY PROPELLERS Model D3A34C401 and D3A34C402 Propellers ACTION: SUMMARY: DATES: Effective June 7, 1978. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 77-26-03 MCCAULEY PROPELLERS: Amendment 39-1301 as amended by Amendment 39-3232. Applies to the following three bladed constant speed Model D3A34C401 and D3A34C402 propellers installed on but not limited to the Cessna Model TU206G, T207A, and T210M aircraft: Affected Propeller Serial Numbers 765815 765820 765821 765822 765823 765824 765828 766622 766624 766625 766626 766627 766638 766639 766640 766641 766642 766643 766644 767451 767452 767453 767454 767455 767456 767457 767458 767471 767472 767473 767474 767475 767476 767477 767479 767480 767481 767661 767662 767663 767664 767665 767666 767667 767668 767678 767679 767680 767682 767683 767684 767776 767777 767778 767799 767800 767801 767802 767803 767804 767805 767806 767822 767823 767824 767825 767826 767827 767828 767829 767830 767831 767832 767833 767834 767835 767837 767838 767839 767879 767880 768190 768191 768192 768193 768194 768195 768196 768197 768199 768202 768254 768335 768336 768337 768338 768339 768340 768341 768342 768343 768344 768345 768346 768347 768348 768349 768350 768351 768352 768353 768354 768560 768888 768889 768890 768891 768892 768893 768970 768971 769002 769007 769008 769009 769092 769093 769094 769209 769210 769211 769212 769214 769215 769216 769217 769229 769230 769264 769265 769266 769267 769269 769288 769289 769291 769292 769449 769450 769451 769452 769453 769454 769455 769456 769457 769459 769460 769548 769549 769550 769551 769552 769553 769555 769556 769557 770212 770213 770214 770216 770217 770218 770219 770220 770221 770222 770223 770224 770225 770226 770390 770391 770392 770394 770489 770490 770491 770492 770583 770584 770585 770608 770609 770610 770611 770612 770613 770614 770615 770623 770624 770625 770626 770627 770628 770629 770630 770631 770632 770633 770634 770635 770636 770637 770638 770639 770640 770641 770642 770721 770722 770723 770724 770725 770864 770865 770866 770867 770868 770869 770870 770871 770872 770873 770874 770875 770876 770877 770878 770879 770880 770881 770882 770883 770884 770885 771659 771660 771661 771662 771663 771664 771665 771676 771677 771679 771680 771681 771682 771683 771684 771685 771813 771844 771845 771846 771987 771988 772004 772005 772006 772007 772008 772010 772011 772012 772013 772014 772015 772017 772041 772042 772204 772205 772206 772207 772208 772209 772210 772250 772251 772252 772253 772254 772255 772256 772257 772506 772507 772509 772510 772518 772519 772520 772521 772683 772694 772696 772698 772699 772700 772701 772702 772703 772704 772705 772731 772732 772733 772735 772865 772866 772940 772941 772942 772943 772945 772946 772974 772975 772977 772981 772983 772984 773011 773093 773094 773095 773096 773097 773098 773101 773192 773193 773195 773196 773197 773198 773199 773200 773201 773202 773205 773207 773342 773343 773533 773709 773775 773780 773783 773785 773787 773918 773924 NOTE: Serial numbers are stamped on the side of the propeller hub. These propellers are equipped with Model 90DFA-() blades (usually - 10 cutoff). Compliance required before further flight, except that the airplane may be flown in accordance with FAR 21.197 to a Federal Aviation Administration Certificated Propeller Repair Station. To prevent possible blade pitch control failures, accomplish the following: (a) Replace blade actuating pin screws, P/N A-1635-104 (cadmium plated), with new screws, P/N A-1635-108 (black oxide) in accordance with McCauley Service Bulletin No. 129, dated October 7, 1977, and Service Manual No. 761001, or later Federal Aviation Administration approved revisions. (b) Replacement of the above parts must be accomplished by a Federal Aviation Administration Certificated Propeller Repair Station, since it is considered a major repair. (c) When the affected propellers are approved for return to service, compliance with this airworthiness directive shall be noted in the Aircraft's Records. (Cessna Service Letter SE-77-37 dated October 10, 1977, also pertains to this subject.) The manufacturer's specifications and procedures identified in this directive are incorporated herein and made part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by the directive who have not already received these documents from the manufacturer, may obtain copies upon request to McCauley Accessory Division, Cessna Aircraft Company, Box 7, Roosevelt Station, Dayton, Ohio 45417. These documents may also be examined at the Great Lakes Regional Office, 2300 East Devon Avenue, Des Plaines, Illinois 60018, and at FAA Headquarters, 800 Independence Avenue, S.W., Washington, D.C. 20591. A historical file on this airworthiness directive which includes incorporated material in full is maintained by the FAA at its Headquarters in Washington, D.C., and the Great Lakes Region. Amendment 39-3159 became effective December 28, 1977. This amendment 39-3233 becomes effective on June 7, 1978. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_77-26-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 77-26-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: MCCAULEY PROPELLERS Model D3A34C401 and D3A34C402 Propellers Subject: Blade Pitch Controls Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 06/07/1978 Make: McCauley Propeller Systems Model: D3A34C401 | D3A34C402 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: 77-26-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3232 AD NUMBER: 77-26-03 SUBJECT HEADING: MCCAULEY PROPELLERS Model D3A34C401 and D3A34C402 Propellers ACTION: SUMMARY: DATES: Effective June 7, 1978. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 77-26-03 MCCAULEY PROPELLERS: Amendment 39-1301 as amended by Amendment 39-3232. Applies to the following three bladed constant speed Model D3A34C401 and D3A34C402 propellers installed on but not limited to the Cessna Model TU206G, T207A, and T210M aircraft: Affected Propeller Serial Numbers 765815 765820 765821 765822 765823 765824 765828 766622 766624 766625 766626 766627 766638 766639 766640 766641 766642 766643 766644 767451 767452 767453 767454 767455 767456 767457 767458 767471 767472 767473 767474 767475 767476 767477 767479 767480 767481 767661 767662 767663 767664 767665 767666 767667 767668 767678 767679 767680 767682 767683 767684 767776 767777 767778 767799 767800 767801 767802 767803 767804 767805 767806 767822 767823 767824 767825 767826 767827 767828 767829 767830 767831 767832 767833 767834 767835 767837 767838 767839 767879 767880 768190 768191 768192 768193 768194 768195 768196 768197 768199 768202 768254 768335 768336 768337 768338 768339 768340 768341 768342 768343 768344 768345 768346 768347 768348 768349 768350 768351 768352 768353 768354 768560 768888 768889 768890 768891 768892 768893 768970 768971 769002 769007 769008 769009 769092 769093 769094 769209 769210 769211 769212 769214 769215 769216 769217 769229 769230 769264 769265 769266 769267 769269 769288 769289 769291 769292 769449 769450 769451 769452 769453 769454 769455 769456 769457 769459 769460 769548 769549 769550 769551 769552 769553 769555 769556 769557 770212 770213 770214 770216 770217 770218 770219 770220 770221 770222 770223 770224 770225 770226 770390 770391 770392 770394 770489 770490 770491 770492 770583 770584 770585 770608 770609 770610 770611 770612 770613 770614 770615 770623 770624 770625 770626 770627 770628 770629 770630 770631 770632 770633 770634 770635 770636 770637 770638 770639 770640 770641 770642 770721 770722 770723 770724 770725 770864 770865 770866 770867 770868 770869 770870 770871 770872 770873 770874 770875 770876 770877 770878 770879 770880 770881 770882 770883 770884 770885 771659 771660 771661 771662 771663 771664 771665 771676 771677 771679 771680 771681 771682 771683 771684 771685 771813 771844 771845 771846 771987 771988 772004 772005 772006 772007 772008 772010 772011 772012 772013 772014 772015 772017 772041 772042 772204 772205 772206 772207 772208 772209 772210 772250 772251 772252 772253 772254 772255 772256 772257 772506 772507 772509 772510 772518 772519 772520 772521 772683 772694 772696 772698 772699 772700 772701 772702 772703 772704 772705 772731 772732 772733 772735 772865 772866 772940 772941 772942 772943 772945 772946 772974 772975 772977 772981 772983 772984 773011 773093 773094 773095 773096 773097 773098 773101 773192 773193 773195 773196 773197 773198 773199 773200 773201 773202 773205 773207 773342 773343 773533 773709 773775 773780 773783 773785 773787 773918 773924 NOTE: Serial numbers are stamped on the side of the propeller hub. These propellers are equipped with Model 90DFA-() blades (usually - 10 cutoff). Compliance required before further flight, except that the airplane may be flown in accordance with FAR 21.197 to a Federal Aviation Administration Certificated Propeller Repair Station. To prevent possible blade pitch control failures, accomplish the following: (a) Replace blade actuating pin screws, P/N A-1635-104 (cadmium plated), with new screws, P/N A-1635-108 (black oxide) in accordance with McCauley Service Bulletin No. 129, dated October 7, 1977, and Service Manual No. 761001, or later Federal Aviation Administration approved revisions. (b) Replacement of the above parts must be accomplished by a Federal Aviation Administration Certificated Propeller Repair Station, since it is considered a major repair. (c) When the affected propellers are approved for return to service, compliance with this airworthiness directive shall be noted in the Aircraft's Records. (Cessna Service Letter SE-77-37 dated October 10, 1977, also pertains to this subject.) The manufacturer's specifications and procedures identified in this directive are incorporated herein and made part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by the directive who have not already received these documents from the manufacturer, may obtain copies upon request to McCauley Accessory Division, Cessna Aircraft Company, Box 7, Roosevelt Station, Dayton, Ohio 45417. These documents may also be examined at the Great Lakes Regional Office, 2300 East Devon Avenue, Des Plaines, Illinois 60018, and at FAA Headquarters, 800 Independence Avenue, S.W., Washington, D.C. 20591. A historical file on this airworthiness directive which includes incorporated material in full is maintained by the FAA at its Headquarters in Washington, D.C., and the Great Lakes Region. Amendment 39-3159 became effective December 28, 1977. This amendment 39-3233 becomes effective on June 7, 1978. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
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