AD 75-25-01

final rule

Beech Model 200 Airplanes

AD Number
75-25-01
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.
Technical illustration of an aircraft electrical generator and wiring assembly
Problem area Electrical system

Applicability

TypeManufacturerModelDetails
aircraft Textron Aviation Inc. 200 Beech Model 200 Airplanes

Unsafe Condition

Shorting of the generator output leads at the air conditioner pulley housing and/or the oil line coupling nut.

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

Required Actions

Visually inspect the generator output leads for chafing or discoloration near the air conditioner compressor pulley housing and oil line coupling nut. If chafing occurred, comply with Paragraph B before further flight. If clearance does not exist, reinspect every 25 hours' time in service until Paragraph B is done. Paragraph B requires modifying lead routing per Beechcraft Service Instruction No. 0768-358/Kit No. 101-3011-1S within 100 hours' time in service.

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

Compliance Time

Within the next 10 hours' time in service after the effective date of this AD, unless previously accomplished. Paragraph B must be done within the next 100 hours' time in service after the effective date or as required by Paragraph A.

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

Affected Aircraft

Beech Model 200 airplanes with serial numbers BB-2, BB-6 thru BB-76 and BB-78 thru BB-80.

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

Federal Register Abstract

Generator Output Leads

Applicability Source Text

Show captured applicability text from the source AD
AD Final Rules - DRS_75-25-01.html
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AD Number:
75-25-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Beech Model 200 Airplanes
Subject:
Generator Output Leads
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
12/01/1975
Make:
Textron Aviation Inc.
Model:
200
Product Type:
Aircraft
Product Subtype:
Small/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Superseded AD: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Superseded By: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: 75-25-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-2442

AD NUMBER:   75-25-01

SUBJECT HEADING:   Beech Model 200 Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective December 1, 1975.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
75-25-01 BEECH: Amendment 39-2442. Applies to Model 200 (Serial Numbers BB-2, BB-6 thru BB-76 and BB-78 thru BB-80) airplanes.

Compliance: Required as indicated, unless already accomplished.

To preclude shorting of the generator output leads at the air conditioner pulley housing and/or the oil line coupling nut, accomplish the following:

A) Within the next 10 hours' time in service after the effective date of this AD, unless previously accomplished, visually inspect the generator output leads for chafing or discoloration in the area of the air conditioner compressor pulley housing and oil line coupling nut or for positive clearance of these components, in the engine compartment:

1) If chafing has occurred, prior to further flight, comply with Paragraph B.

2) If chafing has not occurred but positive clearance does not exist between the generator leads and the air conditioner pulley housing and the oil line coupling nut, reinspect every 25 hours' time in service until Paragraph B is accomplished.

3) If positive clearance exists between the generator leads and the air conditioner pulley housing and oil line coupling nut, reinspection is not required.

B) Within the next 100 hours' time in service after the effective date of this AD or as required by Paragraph A, modify the generator lead routing in accordance with Beechcraft Service Instruction No. 0768-358/Kit No. 101-3011-1S or later approved revisions. Upon compliance with this Paragraph the inspections in Paragraph A are no longer required.

C) Any alternate method of compliance with this AD must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region.

D) Aircraft may be flown in accordance with FAR 21.197 to a place where the modification can be accomplished, if clearance or insulation is provided between the chafed portions of the generator leads and adjacent components.

This amendment becomes effective December 1, 1975, to all persons except those to whom it was made effective earlier by air mail letter issued November 10, 1975.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_75-25-01.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
75-25-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Beech Model 200 Airplanes
Subject:
Generator Output Leads
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
12/01/1975
Make:
Textron Aviation Inc.
Model:
200
Product Type:
Aircraft
Product Subtype:
Small/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: 75-25-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-2442

AD NUMBER:   75-25-01

SUBJECT HEADING:   Beech Model 200 Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective December 1, 1975.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
75-25-01 BEECH: Amendment 39-2442. Applies to Model 200 (Serial Numbers BB-2, BB-6 thru BB-76 and BB-78 thru BB-80) airplanes.

Compliance: Required as indicated, unless already accomplished.

To preclude shorting of the generator output leads at the air conditioner pulley housing and/or the oil line coupling nut, accomplish the following:

A) Within the next 10 hours' time in service after the effective date of this AD, unless previously accomplished, visually inspect the generator output leads for chafing or discoloration in the area of the air conditioner compressor pulley housing and oil line coupling nut or for positive clearance of these components, in the engine compartment:

1) If chafing has occurred, prior to further flight, comply with Paragraph B.

2) If chafing has not occurred but positive clearance does not exist between the generator leads and the air conditioner pulley housing and the oil line coupling nut, reinspect every 25 hours' time in service until Paragraph B is accomplished.

3) If positive clearance exists between the generator leads and the air conditioner pulley housing and oil line coupling nut, reinspection is not required.

B) Within the next 100 hours' time in service after the effective date of this AD or as required by Paragraph A, modify the generator lead routing in accordance with Beechcraft Service Instruction No. 0768-358/Kit No. 101-3011-1S or later approved revisions. Upon compliance with this Paragraph the inspections in Paragraph A are no longer required.

C) Any alternate method of compliance with this AD must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region.

D) Aircraft may be flown in accordance with FAR 21.197 to a place where the modification can be accomplished, if clearance or insulation is provided between the chafed portions of the generator leads and adjacent components.

This amendment becomes effective December 1, 1975, to all persons except those to whom it was made effective earlier by air mail letter issued November 10, 1975.

FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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