AD 78-17-01

final rule

Airworthiness Directives; Mooney Model M20C, M20F, and M20J Airplanes

AD Number
78-17-01
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft Mooney Aviation Company Inc M20C Airworthiness Directives; Mooney Model M20C, M20F, and M20J Airplanes
aircraft Mooney Aviation Company Inc M20F Airworthiness Directives; Mooney Model M20C, M20F, and M20J Airplanes
aircraft Mooney Aviation Company Inc M20J Airworthiness Directives; Mooney Model M20C, M20F, and M20J Airplanes

Unsafe Condition

Failure of the Pacific Communications, Inc., Aircraft Products Division Model Alert 50, Part No. 01070-5 emergency locator transmitter (ELT) system to radiate a proper signal due to improper skin rework or inadequate resistance between the antenna and aircraft skin.

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

Required Actions

Rework the aircraft skin per Mooney Service Bulletin M20-213 within ten hours operating time or 30 days from August 21, 1978. Measure resistance between antenna and skin to ensure 9,000 to 13,000 ohms. Test ELT transmission per FAA Advisory Circulars 91-44 or 20-81.

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

Compliance Time

within ten hours operating time but no later than 30 days from the effective date of this AD

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

Affected Aircraft

Mooney Model M20C (Serial Number 20-1186 through 20-1258), M20F (Serial Number 22-1306 through 22-1486), and M20J (Serial Number 24-0001 through 24-0454) with Pacific Communications, Inc. Model Alert 50 ELT system installed.

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

Federal Register Abstract

Emergency Locator Transmitter

Applicability Source Text

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AD Number:
78-17-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Mooney Model M20C, M20F, and M20J Airplanes
Subject:
Emergency Locator Transmitter
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
08/21/1978
Make:
Mooney Aviation Company Inc
Model:
M20C | M20F | M20J
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: 78-17-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-3279

AD NUMBER:   78-17-01

SUBJECT HEADING:   Airworthiness Directives; Mooney Model M20C, M20F, and M20J Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective August 21, 1978.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   78-17-01 MOONEY AIRCRAFT CORPORATION: Amendment 39-3279. Applies to Model M20C, Serial Number 20-1186 through 20-1258, M20F, Serial Number 22-1306 through 22-1486, and M20J, Serial Number 24-0001 through 24-0454 airplanes, with Pacific Communications, Inc., Aircraft Products Division, Model Alert 50, Part No. 01070-5 emergency locator transmitter system installed.
Compliance is required as indicated.
To assure that the emergency locator transmitter will radiate a proper signal when activated during emergency conditions, accomplish the following:
1. Rework the aircraft skin in accordance with Mooney Aircraft Corporation Service Bulletin M20-213 dated July 21, 1978, within ten hours operating time but no later than 30 days from the effective date of this AD.
2. Upon completion of the Mooney Service Bulletin No. 20-213 instructions, measure the resistance between the antenna and the aircraft skin using an appropriate meter and assure that a reading of 9,000 to 13,000 ohms is obtained. Determine that the ELT transmits properly by testing it in accordance with FAA Advisory Circular No's. 91-44 or 20-81.
3. The manufacturer's specifications and procedures identified and described in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to Mooney Aircraft Corporation, P. O. Box 72, Kerrville, Texas 78028. These documents may also be examined at Southwest Regional Office, Regional Counsel, Building 3B, Room 100, 4400 Blue Mound Road, Fort Worth, Texas, and at FAA headquarters, 800 Independence Avenue, S.W., Washington, D.C. A historical file on this AD which includes the incorporated material in full is maintained by the FAA at its headquarters in Washington, D.C., and at Southwest Regional Office in Fort Worth, Texas.
This amendment becomes effective August 21, 1978.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_78-17-01.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
78-17-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Mooney Model M20C, M20F, and M20J Airplanes
Subject:
Emergency Locator Transmitter
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
08/21/1978
Make:
Mooney Aviation Company Inc
Model:
M20C | M20F | M20J
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: 78-17-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-3279

AD NUMBER:   78-17-01

SUBJECT HEADING:   Airworthiness Directives; Mooney Model M20C, M20F, and M20J Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective August 21, 1978.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   78-17-01 MOONEY AIRCRAFT CORPORATION: Amendment 39-3279. Applies to Model M20C, Serial Number 20-1186 through 20-1258, M20F, Serial Number 22-1306 through 22-1486, and M20J, Serial Number 24-0001 through 24-0454 airplanes, with Pacific Communications, Inc., Aircraft Products Division, Model Alert 50, Part No. 01070-5 emergency locator transmitter system installed.
Compliance is required as indicated.
To assure that the emergency locator transmitter will radiate a proper signal when activated during emergency conditions, accomplish the following:
1. Rework the aircraft skin in accordance with Mooney Aircraft Corporation Service Bulletin M20-213 dated July 21, 1978, within ten hours operating time but no later than 30 days from the effective date of this AD.
2. Upon completion of the Mooney Service Bulletin No. 20-213 instructions, measure the resistance between the antenna and the aircraft skin using an appropriate meter and assure that a reading of 9,000 to 13,000 ohms is obtained. Determine that the ELT transmits properly by testing it in accordance with FAA Advisory Circular No's. 91-44 or 20-81.
3. The manufacturer's specifications and procedures identified and described in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to Mooney Aircraft Corporation, P. O. Box 72, Kerrville, Texas 78028. These documents may also be examined at Southwest Regional Office, Regional Counsel, Building 3B, Room 100, 4400 Blue Mound Road, Fort Worth, Texas, and at FAA headquarters, 800 Independence Avenue, S.W., Washington, D.C. A historical file on this AD which includes the incorporated material in full is maintained by the FAA at its headquarters in Washington, D.C., and at Southwest Regional Office in Fort Worth, Texas.
This amendment becomes effective August 21, 1978.

FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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