AD 59-11-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Mooney Aviation Company Inc | M20A | Airworthiness Directives; Mooney Model M20A Aircraft |
Unsafe Condition
Cracking in the exhaust pipes around the heater jacket bulkheads and exhaust system components could allow carbon monoxide to enter the cabin.
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Required Actions
Visually inspect exhaust pipes for cracking around heater jacket bulkheads before next flight. Repair or replace as required. Remove heater muff jacket and inspect complete exhaust system within next 25 flight hours and every 50 flight hours thereafter unless exhaust heater muff assembly P/N 6363 is installed. Repair or replace defective parts.
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Compliance Time
Before next flight and within next 25 flight hours, with subsequent inspections every 50 flight hours thereafter unless P/N 6363 is installed.
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Affected Aircraft
Mooney Model M20A aircraft through serial number 1534.
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Federal Register Abstract
Exhaust Heater Inspection
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_59-11-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 59-11-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Mooney Model M20A Aircraft Subject: Exhaust Heater Inspection Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Mooney Aviation Company Inc Model: M20A Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 59-11-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 59-11-03 SUBJECT HEADING: Airworthiness Directives; Mooney Model M20A Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 59-11-03 MOONEY: Applies to Mark 20A Aircraft Through Serial Number 1534. Compliance required as indicated. To guard against the possibility of carbon monoxide entering the cabin, the following inspection and/or repair is required: (1) Before next flight, visually inspect the exhaust pipes for cracking around the heater jacket bulkheads. Repair or replace as required. No welding is permitted inside the muff or at heater jacket bulkheads. (2) Within next 25 hours of flight and periodically every 50 hours thereafter, remove the heater muff jacket and inspect the complete exhaust system for cracking. Repair or redlace defective parts as required. The 50-hour inspection is not required if exhaust heater muff assembly P/N 6363 is installed. (Mooney Service Letter 20-38 concerns this subject.) FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_59-11-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 59-11-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Mooney Model M20A Aircraft Subject: Exhaust Heater Inspection Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Mooney Aviation Company Inc Model: M20A 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: 59-11-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 59-11-03 SUBJECT HEADING: Airworthiness Directives; Mooney Model M20A Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 59-11-03 MOONEY: Applies to Mark 20A Aircraft Through Serial Number 1534. Compliance required as indicated. To guard against the possibility of carbon monoxide entering the cabin, the following inspection and/or repair is required: (1) Before next flight, visually inspect the exhaust pipes for cracking around the heater jacket bulkheads. Repair or replace as required. No welding is permitted inside the muff or at heater jacket bulkheads. (2) Within next 25 hours of flight and periodically every 50 hours thereafter, remove the heater muff jacket and inspect the complete exhaust system for cracking. Repair or redlace defective parts as required. The 50-hour inspection is not required if exhaust heater muff assembly P/N 6363 is installed. (Mooney Service Letter 20-38 concerns this subject.) 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.
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