AD 61-06-05

final rule

Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft

AD Number
61-06-05
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
(Federal Register: March 23, 1961)
Technical illustration of an aircraft flight control surface and actuator
Problem area Flight controls

Applicability

TypeManufacturerModelDetails
aircraft The Boeing Company DC-8-11 Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-12 Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-21 Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-31 Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-32 Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-33 Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-41 Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-42 Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-43 Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-51 Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-52 Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-53 Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-55 Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-61 Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-61F Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-62 Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-62F Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-63 Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-63F Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-71 Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-71F Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-72 Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-72F Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-73 Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8-73F Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8F-54 Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
aircraft The Boeing Company DC-8F-55 Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft

Unsafe Condition

Loosened rudder boost piston end assembly locknut P/N NAS 509-16 and improper installation or safetying of lockwasher P/N NAS 513-16, which may allow piston rotation out of proper position.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Visually inspect locknut P/N NAS 509-16 and lockwasher P/N NAS 513-16 for looseness, proper installation, and safetying. Ensure lockwasher is not installed backwards and tang engages piston end notch. Correct discrepancies per DC-8 Overhaul Manual and Douglas Alert Bulletin before further flight.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

within the next 20 hours' time in service

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Douglas DC-8 Series Aircraft including models DC-8-11, DC-8-12, DC-8-21, DC-8-31, DC-8-32, DC-8-33, DC-8-41, DC-8-42, DC-8-43, DC-8-51, and others as listed.

AI-generated summary from the source AD text. Verify against the official source before acting.

Federal Register Abstract

Rudder Boost Piston Locknut

Applicability Source Text

Show captured applicability text from the source AD
AD Final Rules - DRS_61-06-05.html
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AD Number:
61-06-05
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
Subject:
Rudder Boost Piston Locknut
Status:
Current
Citation:
(Federal Register: March 23, 1961)
Citation Publish Date:
03/23/1961
Effective Date:
03/23/1961
Make:
The Boeing Company
Model:
DC-8-11 | DC-8-12 | DC-8-21 | DC-8-31 | DC-8-32 | DC-8-33 | DC-8-41 | DC-8-42 | DC-8-43 | DC-8-51 | ...Show more
Product Type:
Aircraft
Product Subtype:
Large 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: 61-06-05
CITATION:   [Federal Register: March 23, 1961]

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   61-06-05

SUBJECT HEADING:   Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft

ACTION:  

SUMMARY:  

DATES:   Effective March 23, 1961

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
61-06-05 DOUGLAS: Amdt. 270 Part 507 Federal Register March 23, 1961. Applies to All DC-8 Series Aircraft.

Compliance required within the next 20 hours' time in service, unless already accomplished in accordance with Douglas Alert Bulletin dated February 24, 1961.

As a result of reported instances of loosened rudder boost piston end assembly locknut, the following must be accomplished.

Refer to DC-8 Overhaul Manual, Chapter 27-19-2, page 18. Visually inspect for loose locknut P/N NAS 509-16 and proper installation and safetying to locknut of lockwasher P/N NAS 513-16. Insure that lockwasher is not installed backwards and that tang on lockwasher is engaged in notch in piston end and that piston has not rotated out of its proper position. If any discrepancies are found, they must be corrected in accordance with the DC-8 Overhaul Manual and Douglas Alert Bulletin dated February 24, 1961, prior to further flight.

This directive becomes effective upon publication in the Federal Register for all person except those to whom it was made effective immediately by individual telegrams dated March 8, 1961.


FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_61-06-05.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
61-06-05
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft
Subject:
Rudder Boost Piston Locknut
Status:
Current
Citation:
(Federal Register: March 23, 1961)
Citation Publish Date:
03/23/1961
Effective Date:
03/23/1961
Make:
The Boeing Company
Model:
DC-8-11 | DC-8-12 | DC-8-21 | DC-8-31 | DC-8-32 | DC-8-33 | DC-8-41 | DC-8-42 | DC-8-43 | DC-8-51 | ...Show more
Product Type:
Aircraft
Product Subtype:
Large 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: 61-06-05
CITATION:   [Federal Register: March 23, 1961]

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   61-06-05

SUBJECT HEADING:   Airworthiness Directives; DOUGLAS All DC-8 Series Aircraft

ACTION:  

SUMMARY:  

DATES:   Effective March 23, 1961

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
61-06-05 DOUGLAS: Amdt. 270 Part 507 Federal Register March 23, 1961. Applies to All DC-8 Series Aircraft.

Compliance required within the next 20 hours' time in service, unless already accomplished in accordance with Douglas Alert Bulletin dated February 24, 1961.

As a result of reported instances of loosened rudder boost piston end assembly locknut, the following must be accomplished.

Refer to DC-8 Overhaul Manual, Chapter 27-19-2, page 18. Visually inspect for loose locknut P/N NAS 509-16 and proper installation and safetying to locknut of lockwasher P/N NAS 513-16. Insure that lockwasher is not installed backwards and that tang on lockwasher is engaged in notch in piston end and that piston has not rotated out of its proper position. If any discrepancies are found, they must be corrected in accordance with the DC-8 Overhaul Manual and Douglas Alert Bulletin dated February 24, 1961, prior to further flight.

This directive becomes effective upon publication in the Federal Register for all person except those to whom it was made effective immediately by individual telegrams dated March 8, 1961.


FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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