AD 73-19-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Mitsubishi Heavy Industries, Ltd. | MU-2B | Airworthiness Directives; Mitsubishi Model MU-2B, MU-2B-10, MU-2B-15, MU-2B-20, and MU-2B-25 Airplanes |
| aircraft | Mitsubishi Heavy Industries, Ltd. | MU-2B-10 | Airworthiness Directives; Mitsubishi Model MU-2B, MU-2B-10, MU-2B-15, MU-2B-20, and MU-2B-25 Airplanes |
| aircraft | Mitsubishi Heavy Industries, Ltd. | MU-2B-15 | Airworthiness Directives; Mitsubishi Model MU-2B, MU-2B-10, MU-2B-15, MU-2B-20, and MU-2B-25 Airplanes |
| aircraft | Mitsubishi Heavy Industries, Ltd. | MU-2B-20 | Airworthiness Directives; Mitsubishi Model MU-2B, MU-2B-10, MU-2B-15, MU-2B-20, and MU-2B-25 Airplanes |
| aircraft | Mitsubishi Heavy Industries, Ltd. | MU-2B-25 | Airworthiness Directives; Mitsubishi Model MU-2B, MU-2B-10, MU-2B-15, MU-2B-20, and MU-2B-25 Airplanes |
Unsafe Condition
Failure of the nose gear actuating system.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the nose gear actuating assembly and its supporting structure in accordance with Mitsubishi MU-2 Service Bulletin No. 155, dated June 26, 1972, or an equivalent method approved by the Chief, Engineering and Manufacturing Branch, FAA, Pacific-Asia Region.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 100 hours' time in service after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Mitsubishi Model MU-2B airplanes (S/N 004, and 006 through 038); MU-2B-10, and -15 airplanes (S/N 101, and 103 through 120); MU-2B-20, and -25 airplanes (S/N 005, 102, and 121 through 271)
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Nose Gear Actuating System Failure
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_73-19-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 73-19-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Mitsubishi Model MU-2B, MU-2B-10, MU-2B-15, MU-2B-20, and MU-2B-25 Airplanes Subject: Nose Gear Actuating System Failure Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 10/08/1973 Make: Mitsubishi Heavy Industries, Ltd. Model: MU-2B | MU-2B-10 | MU-2B-15 | MU-2B-20 | MU-2B-25 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: 73-19-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1716 AD NUMBER: 73-19-03 SUBJECT HEADING: Airworthiness Directives; Mitsubishi Model MU-2B, MU-2B-10, MU-2B-15, MU-2B-20, and MU-2B-25 Airplanes ACTION: SUMMARY: DATES: Effective October 8, 1973. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 73-19-03 MITSUBISHI HEAVY INDUSTRIES, LTD: Amdt. 39-1716. Applies to Mitsubishi Model MU-2B airplanes (S/N 004, and 006 through 038); MU-2B-10, and -15 airplanes (S/N 101, and 103 through 120); MU-2B-20, and -25 airplanes (S/N 005, 102, and 121 through 271). Compliance is required as indicated. To prevent the failure of the nose gear actuating system, accomplish the following: Within the next 100 hours' time in service after the effective date of this AD, unless already accomplished, modify the nose gear actuating assembly and its supporting structure in accordance with Mitsubishi MU-2 Service Bulletin No. 155, dated June 26, 1972, or an equivalent method approved by the Chief, Engineering and Manufacturing Branch, FAA, Pacific- Asia Region. This amendment becomes effective October 8, 1973. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_73-19-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 73-19-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Mitsubishi Model MU-2B, MU-2B-10, MU-2B-15, MU-2B-20, and MU-2B-25 Airplanes Subject: Nose Gear Actuating System Failure Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 10/08/1973 Make: Mitsubishi Heavy Industries, Ltd. Model: MU-2B | MU-2B-10 | MU-2B-15 | MU-2B-20 | MU-2B-25 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: 73-19-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1716 AD NUMBER: 73-19-03 SUBJECT HEADING: Airworthiness Directives; Mitsubishi Model MU-2B, MU-2B-10, MU-2B-15, MU-2B-20, and MU-2B-25 Airplanes ACTION: SUMMARY: DATES: Effective October 8, 1973. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 73-19-03 MITSUBISHI HEAVY INDUSTRIES, LTD: Amdt. 39-1716. Applies to Mitsubishi Model MU-2B airplanes (S/N 004, and 006 through 038); MU-2B-10, and -15 airplanes (S/N 101, and 103 through 120); MU-2B-20, and -25 airplanes (S/N 005, 102, and 121 through 271). Compliance is required as indicated. To prevent the failure of the nose gear actuating system, accomplish the following: Within the next 100 hours' time in service after the effective date of this AD, unless already accomplished, modify the nose gear actuating assembly and its supporting structure in accordance with Mitsubishi MU-2 Service Bulletin No. 155, dated June 26, 1972, or an equivalent method approved by the Chief, Engineering and Manufacturing Branch, FAA, Pacific- Asia Region. This amendment becomes effective October 8, 1973. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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