AD 91-23-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | APEX Aircraft | CAP 10 B | Airworthiness Directives; AVIONS MUDRY & CIE Model CAP10B Airplanes |
Unsafe Condition
Engine stoppage caused by air entering the inverted flight valve.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the fuel system in accordance with Avions Mudry & Cie Service Bulletin CAP10B No. 13 dated May 14, 1991. Special flight permits may be issued under FAR 21.197 and 21.199 to operate the airplane to a location where the AD requirements can be accomplished.
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Compliance Time
within the next 100 hours time-in-service after the effective date of this AD
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Affected Aircraft
AVIONS MUDRY & CIE Model CAP10B Airplanes (serial numbers 01 through 208)
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Federal Register Abstract
Fuel System
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_91-23-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 91-23-03 Document Type: AD Final Rules Docket Number: 91-CE-58-AD Subject Heading: Airworthiness Directives; AVIONS MUDRY & CIE Model CAP10B Airplanes Subject: Fuel System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 12/10/1991 Make: APEX Aircraft Model: CAP 10 B Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 91-23-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 91-CE-58-AD AMENDMENT: 39-8072 AD NUMBER: 91-23-03 SUBJECT HEADING: Airworthiness Directives; AVIONS MUDRY & CIE Model CAP10B Airplanes ACTION: SUMMARY: DATES: Effective December 10, 1991. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 91-23-03 AVIONS MUDRY & CIE: Amendment 39-8072. Docket No. 91-CE-58-AD. Applicability: Model CAP10B Airplanes (serial numbers 01 through 208), certificated in any category. Compliance: Required within the next 100 hours time-in-service after the effective date of this AD, unless already accomplished. To prevent engine stoppage caused by air entering the inverted flight valve, accomplish the following: (a) Modify the fuel system in accordance with paragraph 2. ASSEMBLY INSTRUCTIONS of Avions Mudry & Cie Service Bulletin CAP10B No. 13, dated May 14, 1991. (b) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished. (c) An alternative method of compliance or adjustment of the compliance time that provides an equivalent level of safety may be approved by the Manager, Brussels Aircraft Certification Office, Europe, Africa, Middle East office, FAA, c/o American Embassy, 1000 Brussels, Belgium. The request should be forwarded through an FAA Maintenance Inspector, who may add comments and then send it to the Manager, Brussels Aircraft Certification Office. (d) The modifications required by this AD shall be done in accordance with Avions Mudry & Cie Service Bulletin CAP10B No. 13, dated May 14, 1991. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from Avions Mudry & Cie, B.P. 214, 27300 Bernay, France. Copies may be inspected at the FAA, Central Region, Office of the Assistant Chief Counsel, Room 1558, 601 E. 12th Street, Kansas City, Missouri, or at the Office of the Federal Register, 1100 L Street, NW; Room 8401, Washington, DC. This amendment (39-8072, AD 91-23-03) becomes effective on December 10, 1991. FOOTER:
Document Text
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AD Final Rules - DRS_91-23-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 91-23-03 Document Type: AD Final Rules Docket Number: 91-CE-58-AD Subject Heading: Airworthiness Directives; AVIONS MUDRY & CIE Model CAP10B Airplanes Subject: Fuel System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 12/10/1991 Make: APEX Aircraft Model: CAP 10 B 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: 91-23-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 91-CE-58-AD AMENDMENT: 39-8072 AD NUMBER: 91-23-03 SUBJECT HEADING: Airworthiness Directives; AVIONS MUDRY & CIE Model CAP10B Airplanes ACTION: SUMMARY: DATES: Effective December 10, 1991. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 91-23-03 AVIONS MUDRY & CIE: Amendment 39-8072. Docket No. 91-CE-58-AD. Applicability: Model CAP10B Airplanes (serial numbers 01 through 208), certificated in any category. Compliance: Required within the next 100 hours time-in-service after the effective date of this AD, unless already accomplished. To prevent engine stoppage caused by air entering the inverted flight valve, accomplish the following: (a) Modify the fuel system in accordance with paragraph 2. ASSEMBLY INSTRUCTIONS of Avions Mudry & Cie Service Bulletin CAP10B No. 13, dated May 14, 1991. (b) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished. (c) An alternative method of compliance or adjustment of the compliance time that provides an equivalent level of safety may be approved by the Manager, Brussels Aircraft Certification Office, Europe, Africa, Middle East office, FAA, c/o American Embassy, 1000 Brussels, Belgium. The request should be forwarded through an FAA Maintenance Inspector, who may add comments and then send it to the Manager, Brussels Aircraft Certification Office. (d) The modifications required by this AD shall be done in accordance with Avions Mudry & Cie Service Bulletin CAP10B No. 13, dated May 14, 1991. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from Avions Mudry & Cie, B.P. 214, 27300 Bernay, France. Copies may be inspected at the FAA, Central Region, Office of the Assistant Chief Counsel, Room 1558, 601 E. 12th Street, Kansas City, Missouri, or at the Office of the Federal Register, 1100 L Street, NW; Room 8401, Washington, DC. This amendment (39-8072, AD 91-23-03) becomes effective on December 10, 1991. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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