AD 78-20-08

final rule

Airworthiness Directives; BEECH Model 76 Airplanes

AD Number
78-20-08
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.
Technical illustration of an aircraft flight control surface and actuator
Problem area Flight controls

Applicability

TypeManufacturerModelDetails
aircraft Textron Aviation Inc. 76 Airworthiness Directives; BEECH Model 76 Airplanes

Unsafe Condition

Failure of the rudder and elevator trim tab push rods.

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

Required Actions

Replace Beech Part Number 105-520024-5 with new Part Number 105-520045-9 for rudder trim tab push rod, and replace Beech Part Number 105-520024-1 with new Part Number 105-520048-1 for elevator trim tab push rod. Rebalance control surfaces where necessary per Beechcraft Liberal Service Letter No. 78-4 or later revisions.

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

BEECH Model 76 airplanes with Serial Numbers ME-1 through ME-62 and ME-66

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

Federal Register Abstract

Trim Tab Push Rods

Applicability Source Text

Show captured applicability text from the source AD
AD Final Rules - DRS_78-20-08.html
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AD Number:
78-20-08
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; BEECH Model 76 Airplanes
Subject:
Trim Tab Push Rods
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
10/12/1978
Make:
Textron Aviation Inc.
Model:
76
Product Type:
Aircraft
Product Subtype:
Small 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Superseded AD: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Superseded By: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: 78-20-08
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-3311

AD NUMBER:   78-20-08

SUBJECT HEADING:   Airworthiness Directives; BEECH Model 76 Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective October 12, 1978.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
78-20-08 BEECH: Amendment 39-3311. Applies to Model 76 (Serial Numbers ME-1 through ME-62 and ME-66) airplanes.

To preclude failure of the rudder and elevator trim tab push rods, prior to further flight:

A) If not previously accomplished, replace Beech Part Number 105-520024-5 rudder trim tab push rod with new Beech Part Number 105-520045-9 rudder trim tab push rod and rebalance the rudder control surface, where necessary, in accordance with Beechcraft Liberal Service Letter No. 78-4 dated September 14, 1978, or later approved revisions.

B) If not previously accomplished, replace Beech Part Number 105-520024-1 elevator trim tab push rod with new Beech Part Number 105-520048-1 elevator trim tab push rod and rebalance the elevator control surfaces, where necessary, in accordance with Beechcraft Liberal Service Letter No. 78-4 dated September 14, 1978, or later approved revisions.

C) Aircraft may not be flown in accordance with FAR 21.197 to a base to accomplish this AD, unless authorized by the Chief, Engineering and Manufacturing Branch, FAA, Central Region.

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

This amendment becomes effective October 12, 1978, to all persons except those to whom it has already been made effective by telegram from the FAA dated September 9, 1978.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_78-20-08.html
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Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
78-20-08
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; BEECH Model 76 Airplanes
Subject:
Trim Tab Push Rods
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
10/12/1978
Make:
Textron Aviation Inc.
Model:
76
Product Type:
Aircraft
Product Subtype:
Small 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: 78-20-08
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-3311

AD NUMBER:   78-20-08

SUBJECT HEADING:   Airworthiness Directives; BEECH Model 76 Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective October 12, 1978.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
78-20-08 BEECH: Amendment 39-3311. Applies to Model 76 (Serial Numbers ME-1 through ME-62 and ME-66) airplanes.

To preclude failure of the rudder and elevator trim tab push rods, prior to further flight:

A) If not previously accomplished, replace Beech Part Number 105-520024-5 rudder trim tab push rod with new Beech Part Number 105-520045-9 rudder trim tab push rod and rebalance the rudder control surface, where necessary, in accordance with Beechcraft Liberal Service Letter No. 78-4 dated September 14, 1978, or later approved revisions.

B) If not previously accomplished, replace Beech Part Number 105-520024-1 elevator trim tab push rod with new Beech Part Number 105-520048-1 elevator trim tab push rod and rebalance the elevator control surfaces, where necessary, in accordance with Beechcraft Liberal Service Letter No. 78-4 dated September 14, 1978, or later approved revisions.

C) Aircraft may not be flown in accordance with FAR 21.197 to a base to accomplish this AD, unless authorized by the Chief, Engineering and Manufacturing Branch, FAA, Central Region.

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

This amendment becomes effective October 12, 1978, to all persons except those to whom it has already been made effective by telegram from the FAA dated September 9, 1978.

FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.