AD 84-11-01

final rule

Airworthiness Directives; HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS) Model 369D and 369E Helicopters

AD Number
84-11-01
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft MD Helicopters, Inc. 369D Airworthiness Directives; HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS) Model 369D and 369E Helicopters
aircraft MD Helicopters, Inc. 369E Airworthiness Directives; HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS) Model 369D and 369E Helicopters

Unsafe Condition

Interference or binding of the longitudinal mixer control rod and doubler could cause possible loss of longitudinal cyclic control in flight.

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

Required Actions

Inspect and comply with procedures a., b., and d. through k. under PART I of Hughes Helicopters, Inc. Mandatory Service Information Notice EN-13 or equivalent approved procedures. If control rod is damaged or clearance is less than 0.21 inch, comply with PART II of EN-13 or approved equivalent method. Alternative methods providing equivalent safety may be used with approval.

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

Compliance Time

within 10 hours time in service after the effective date of this AD

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

Affected Aircraft

Model 369D, Serial No. 110871D only, and Model 369E Helicopters, Serial Nos. 0001E through 0027E, 0029E through 0036E, and 0038E through 0043E, with longitudinal mixer control rod Part Number 369A7011 and doubler P/N 369D22509-51 installed.

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

Federal Register Abstract

Control Rod

Applicability Source Text

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AD Number:
84-11-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS) Model 369D and 369E Helicopters
Subject:
Control Rod
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
05/31/1984
Make:
MD Helicopters, Inc.
Model:
369D | 369E
Product Type:
Aircraft
Product Subtype:
Rotorcraft
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 84-11-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-4870

AD NUMBER:   84-11-01

SUBJECT HEADING:   Airworthiness Directives; HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS) Model 369D and 369E Helicopters

ACTION:  

SUMMARY:  

DATES:   Effective May 31, 1984.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
84-11-01 HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS): Amendment 39-4870. Applies to certain Model 369D and 369E helicopters certificated in all categories.

Compliance is required within 10 hours time in service after the effective date of this AD, unless already accomplished.

To prevent interference or binding and possible loss of longitudinal cyclic control in flight, accomplish the following:

For Hughes Helicopters, Inc., Model 369D, Serial No. 110871D only, and Model 369E Helicopters, Serial Nos. 0001E through 0027E, 0029E through 0036E, and 0038E through 0043E, with longitudinal mixer control rod Part Number (P/N) 369A7011, and doubler P/N 369D22509-51 installed.

(a) Comply with procedures a., b., and d. through k. under PART I of Hughes Helicopters, Inc., Mandatory Service Information Notice EN-13 or equivalent procedures approved under paragraph (c) of this AD.

NOTE: Procedure c. under PART I concerns an inspection for proper number of rivets in P/N 369D22509-21. Compliance with this procedure and installation of rivets are recommended.

(b) If the control rod is damaged or control rod clearance is less than 0.21 inch, while performing procedures f. or g. under PART I or approved equivalent procedures, comply with PART II of Mandatory Service Information Notice EN-13 or an equivalent method approved under paragraph (c) of this AD.

(c) Alternative inspections, modifications, or other actions which provide an equivalent level of safety may be used when approved by the Manager, Western Aircraft Certification Office, Hawthorne, California.

(d) Special flight permits may be issued in accordance with Federal Aviation Regulations 21.197 and 21.199 to ferry aircraft to a maintenance base in order to comply with the requirements of this AD.

This amendment becomes effective May 31, 1984.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_84-11-01.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
84-11-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS) Model 369D and 369E Helicopters
Subject:
Control Rod
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
05/31/1984
Make:
MD Helicopters, Inc.
Model:
369D | 369E
Product Type:
Aircraft
Product Subtype:
Rotorcraft
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 84-11-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-4870

AD NUMBER:   84-11-01

SUBJECT HEADING:   Airworthiness Directives; HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS) Model 369D and 369E Helicopters

ACTION:  

SUMMARY:  

DATES:   Effective May 31, 1984.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
84-11-01 HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS): Amendment 39-4870. Applies to certain Model 369D and 369E helicopters certificated in all categories.

Compliance is required within 10 hours time in service after the effective date of this AD, unless already accomplished.

To prevent interference or binding and possible loss of longitudinal cyclic control in flight, accomplish the following:

For Hughes Helicopters, Inc., Model 369D, Serial No. 110871D only, and Model 369E Helicopters, Serial Nos. 0001E through 0027E, 0029E through 0036E, and 0038E through 0043E, with longitudinal mixer control rod Part Number (P/N) 369A7011, and doubler P/N 369D22509-51 installed.

(a) Comply with procedures a., b., and d. through k. under PART I of Hughes Helicopters, Inc., Mandatory Service Information Notice EN-13 or equivalent procedures approved under paragraph (c) of this AD.

NOTE: Procedure c. under PART I concerns an inspection for proper number of rivets in P/N 369D22509-21. Compliance with this procedure and installation of rivets are recommended.

(b) If the control rod is damaged or control rod clearance is less than 0.21 inch, while performing procedures f. or g. under PART I or approved equivalent procedures, comply with PART II of Mandatory Service Information Notice EN-13 or an equivalent method approved under paragraph (c) of this AD.

(c) Alternative inspections, modifications, or other actions which provide an equivalent level of safety may be used when approved by the Manager, Western Aircraft Certification Office, Hawthorne, California.

(d) Special flight permits may be issued in accordance with Federal Aviation Regulations 21.197 and 21.199 to ferry aircraft to a maintenance base in order to comply with the requirements of this AD.

This amendment becomes effective May 31, 1984.

FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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