AD 70-22-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-23-250 (Navy UO-1) | Airworthiness Directives; Piper PA 23-250, PA-30, PA-31 and PA-31-300 Airplanes |
| aircraft | Piper Aircraft Inc. | PA-30 | Airworthiness Directives; Piper PA 23-250, PA-30, PA-31 and PA-31-300 Airplanes |
| aircraft | Piper Aircraft Inc. | PA-31 | Airworthiness Directives; Piper PA 23-250, PA-30, PA-31 and PA-31-300 Airplanes |
| aircraft | Piper Aircraft Inc. | PA-31-300 | Airworthiness Directives; Piper PA 23-250, PA-30, PA-31 and PA-31-300 Airplanes |
Unsafe Condition
The possibility of a complete loss of electrical power while operating under Instrument Flight Rules.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the aircraft electrical system in accordance with Piper Service Bulletin No. 306 dated January 9, 1970 or an equivalent method approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 100 hours in service after the effective date of this AD, unless already accomplished
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Affected Aircraft
Piper PA 23-250 (Navy UO-1) S/N 27-3837 and 27-3944 to 27-4442 incl.; PA-30 S/Nos. 30-1717, 30-1746 to 30-2000 incl.; PA-31 and PA-31-300 S/Nos. 31-228, 31-230, 31-231, 31-233 to 31-588, certificated for Instrument Flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Electrical System Modifications
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_70-22-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 70-22-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper PA 23-250, PA-30, PA-31 and PA-31-300 Airplanes Subject: Electrical System Modifications Status: Current Citation: This information is not available. Citation Publish Date: 11/25/1971 Effective Date: 11/30/1971 Make: Piper Aircraft Inc. Model: PA-23-250 (Navy UO-1) | PA-30 | PA-31 | PA-31-300 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 70-22-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1344 AD NUMBER: 70-22-05 SUBJECT HEADING: Airworthiness Directives; Piper PA 23-250, PA-30, PA-31 and PA-31-300 Airplanes ACTION: SUMMARY: DATES: Effective November 30, 1971. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 70-22-05 PIPER: Amdt. 39-1099 as amended by Amendment 39-1344. Applies to Piper PA 23-250 type Aircraft S/N 27-3837 and 27-3944 to 27-4442 incl.; PA-30, S/Nos. 30-1717, 30-1746 to 30-2000, Incl.; PA-31 and PA-31-300, S/Nos. 31-228, 31-230, 31-231, 31-233 to 31- 588. Certificated for Instrument Flight. Compliance required within the next 100 hours in service after the effective date of this AD, unless already accomplished. To prevent the hazards associated with the possibility of a complete loss of electrical power while operating under Instrument Flight Rules. Accomplish the following: (a) Modify the aircraft electrical system in accordance with Piper Service Bulletin No. 306 dated January 9, 1970 or equivalent method approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. Upon request with substantiating data submitted through an FAA maintenance inspector, the compliance time specified in this AD may be increased by the Chief, Engineering & Manufacturing Branch, FAA Eastern Region. Amendment 39-1099 was effective November 4, 1970. This Amendment 39-1344 is effective November 30, 1971. FOOTER:
Document Text
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AD Final Rules - DRS_70-22-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 70-22-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper PA 23-250, PA-30, PA-31 and PA-31-300 Airplanes Subject: Electrical System Modifications Status: Current Citation: This information is not available. Citation Publish Date: 11/25/1971 Effective Date: 11/30/1971 Make: Piper Aircraft Inc. Model: PA-23-250 (Navy UO-1) | PA-30 | PA-31 | PA-31-300 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 70-22-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1344 AD NUMBER: 70-22-05 SUBJECT HEADING: Airworthiness Directives; Piper PA 23-250, PA-30, PA-31 and PA-31-300 Airplanes ACTION: SUMMARY: DATES: Effective November 30, 1971. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 70-22-05 PIPER: Amdt. 39-1099 as amended by Amendment 39-1344. Applies to Piper PA 23-250 type Aircraft S/N 27-3837 and 27-3944 to 27-4442 incl.; PA-30, S/Nos. 30-1717, 30-1746 to 30-2000, Incl.; PA-31 and PA-31-300, S/Nos. 31-228, 31-230, 31-231, 31-233 to 31- 588. Certificated for Instrument Flight. Compliance required within the next 100 hours in service after the effective date of this AD, unless already accomplished. To prevent the hazards associated with the possibility of a complete loss of electrical power while operating under Instrument Flight Rules. Accomplish the following: (a) Modify the aircraft electrical system in accordance with Piper Service Bulletin No. 306 dated January 9, 1970 or equivalent method approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. Upon request with substantiating data submitted through an FAA maintenance inspector, the compliance time specified in this AD may be increased by the Chief, Engineering & Manufacturing Branch, FAA Eastern Region. Amendment 39-1099 was effective November 4, 1970. This Amendment 39-1344 is effective November 30, 1971. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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