AD 84-01-02 R1

final rule

Airworthiness Directives; HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS) Model 369 Series Helicopters

AD Number
84-01-02 R1
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.
Technical illustration of a helicopter rotor hub assembly
Problem area Rotor system

Applicability

TypeManufacturerModelDetails
aircraft MD Helicopters, Inc. 369 Airworthiness Directives; HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS) Model 369 Series Helicopters
aircraft MD Helicopters, Inc. 369A Airworthiness Directives; HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS) Model 369 Series Helicopters
aircraft MD Helicopters, Inc. 369D Airworthiness Directives; HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS) Model 369 Series Helicopters
aircraft MD Helicopters, Inc. 369E Airworthiness Directives; HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS) Model 369 Series Helicopters
aircraft MD Helicopters, Inc. 369F Airworthiness Directives; HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS) Model 369 Series Helicopters
aircraft MD Helicopters, Inc. 369H Airworthiness Directives; HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS) Model 369 Series Helicopters
aircraft MD Helicopters, Inc. 369HE Airworthiness Directives; HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS) Model 369 Series Helicopters
aircraft MD Helicopters, Inc. 369HM Airworthiness Directives; HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS) Model 369 Series Helicopters
aircraft MD Helicopters, Inc. 369HS Airworthiness Directives; HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS) Model 369 Series Helicopters

Unsafe Condition

Possible loss of control of rotor system in flight due to deficient swashplate bearing assembly P/N 369A7003-3.

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

Required Actions

Comply with paragraphs A through J of procedures section of Hughes Helicopters, Inc., Mandatory Service Information Notices DN-125, EN-12, and HN-191, replace deficient swashplate bearing assembly with serviceable unit, and ensure replacement bearings are S/N 9000-9999, have a 1/8-inch-diameter blue dot on the snap ring, or are FAA approved equivalent.

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

Compliance Time

prior to further flight

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

Affected Aircraft

MD Helicopters, Inc. Model 369 series including Army YOH-6A, OH-6A, 369A, 369D, 369E, 369H, 369HE, 369HM, and 369HS helicopters with swashplate bearing assembly P/N 369A7003-3 installed after June 1, 1983.

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

Federal Register Abstract

Rotor System Control

Applicability Source Text

Show captured applicability text from the source AD
AD Final Rules - DRS_84-01-02_R.html
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AD Number:
84-01-02 R1
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS) Model 369 Series Helicopters
Subject:
Rotor System Control
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
04/09/1984
Make:
MD Helicopters, Inc.
Model:
369 | 369A | 369D | 369E | 369F | 369H | 369HE | 369HM | 369HS
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: 84-01-02 R1
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-4831

AD NUMBER:   84-01-02 R1

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

ACTION:  

SUMMARY:  

DATES:   ; Effective April 9, 1984.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
84-01-02 R1 HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS): Amendment 39-4831. Applies to Hughes Helicopters, Inc., Model 369 series including Army YOH-6A, and OH6A helicopters certificated in all categories.

Compliance is required prior to further flight, unless already accomplished.

To prevent possible loss of control of rotor system in flight, accomplish the following:

For Hughes Helicopters, Inc., Model 369 (Army YOH-6A), 369A (Army OH-6A) D, E, H, HE, HM, and HS helicopters with swashplate bearing assembly P/N 369A7OO3-3 installed after June 1, 1983;

(a) Comply with paragraphs A through J of procedures section of Hughes Helicopters, Inc., Mandatory Service Information Notices DN-125, EN-12, and HN-191, as applicable, all dated December 23, 1983, or FAA approved equivalent. Model 369 series are to comply with Mandatory Service Information Notice HN-191 or FAA approved equivalent.

(b) Replace deficient swashplate bearing assembly with serviceable unit.

(c) Swashplate bearing assembly P/N 369A7003-3 with positively identified serial numbers 9000 through 9999 or with a 1/8-inch-diameter blue dot on the outer surface of the snap ring has been determined to contain the ball bearing cage and need not be reinspected.

(d) Only subject bearing assembly positively identified as being S/Ns 9000-9999 or bearing assemblies with blue dot on the outer surface of snap ring or FAA approved equivalent bearing assemblies approved by the Manager, Western Aircraft Certification Office may be used as replacement swashplate bearing assemblies.

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.

This amendment becomes effective April 9, 1984, as to all persons except those persons to whom it was made immediately effective by priority mail AD 84-01-02, issued January 10, 1984, which contained this amendment.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_84-01-02_R.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
84-01-02 R1
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS) Model 369 Series Helicopters
Subject:
Rotor System Control
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
04/09/1984
Make:
MD Helicopters, Inc.
Model:
369 | 369A | 369D | 369E | 369F | 369H | 369HE | 369HM | 369HS
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: 84-01-02 R1
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-4831

AD NUMBER:   84-01-02 R1

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

ACTION:  

SUMMARY:  

DATES:   ; Effective April 9, 1984.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
84-01-02 R1 HUGHES HELICOPTERS, INC. (HUGHES HELICOPTERS): Amendment 39-4831. Applies to Hughes Helicopters, Inc., Model 369 series including Army YOH-6A, and OH6A helicopters certificated in all categories.

Compliance is required prior to further flight, unless already accomplished.

To prevent possible loss of control of rotor system in flight, accomplish the following:

For Hughes Helicopters, Inc., Model 369 (Army YOH-6A), 369A (Army OH-6A) D, E, H, HE, HM, and HS helicopters with swashplate bearing assembly P/N 369A7OO3-3 installed after June 1, 1983;

(a) Comply with paragraphs A through J of procedures section of Hughes Helicopters, Inc., Mandatory Service Information Notices DN-125, EN-12, and HN-191, as applicable, all dated December 23, 1983, or FAA approved equivalent. Model 369 series are to comply with Mandatory Service Information Notice HN-191 or FAA approved equivalent.

(b) Replace deficient swashplate bearing assembly with serviceable unit.

(c) Swashplate bearing assembly P/N 369A7003-3 with positively identified serial numbers 9000 through 9999 or with a 1/8-inch-diameter blue dot on the outer surface of the snap ring has been determined to contain the ball bearing cage and need not be reinspected.

(d) Only subject bearing assembly positively identified as being S/Ns 9000-9999 or bearing assemblies with blue dot on the outer surface of snap ring or FAA approved equivalent bearing assemblies approved by the Manager, Western Aircraft Certification Office may be used as replacement swashplate bearing assemblies.

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.

This amendment becomes effective April 9, 1984, as to all persons except those persons to whom it was made immediately effective by priority mail AD 84-01-02, issued January 10, 1984, which contained this amendment.

FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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