AD 81-15-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | P210N | Airworthiness Directives; Cessna Model P210N Airplanes |
Unsafe Condition
Engine detonation and reduced airplane climb performance.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform engine and airplane modifications per Cessna SE81-35 and SE81-35 Supplement #1, install cabin pressurization sonic nozzle part number 2150001-11 per aircraft service manual, and obtain approval for equivalent methods from FAA.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 100 hours time-in-service after July 27, 1981
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Cessna Model P210N (Serial Numbers P21000001 through P2100069O)
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Engine and Airplane Modifications
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_81-15-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 81-15-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Cessna Model P210N Airplanes Subject: Engine and Airplane Modifications Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/27/1981 Make: Cessna Aircraft Company Model: P210N Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 81-15-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4168 AD NUMBER: 81-15-05 SUBJECT HEADING: Airworthiness Directives; Cessna Model P210N Airplanes ACTION: SUMMARY: DATES: Effective July 27, 1981. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 81-15-05 CESSNA: Amendment 39-4168. Applies to Model P210N (Serial Numbers P21000001 through P2100069O) airplanes certificated in any category. COMPLIANCE: Required as indicated unless already accomplished. To further reduce the possibility of engine detonation and improve the airplane climb performance within the next 100 hours time-in-service after the effective date of this AD, accomplish the following: A) Perform the engine and airplane modifications in accordance with Cessna Single- Engine Customer Care Service Information Letter SE81-35 dated May 29, 1981, and SE81-35 Supplement # 1 dated June 29, 1981. B) Install the cabin pressurization sonic nozzle identified as Cessna Assembly Part Number 2150001-11 in accordance with the aircraft service manual. NOTE: This part, previously required by Airworthiness Directive (AD) 81-01- 04, was installed on all airplanes manufactured subsequent to the airplane serial numbers included in AD 81-01-04. C) Airplanes may be flown in accordance with FAR 21.197 to a location where this AD may be accomplished. D) Any equivalent method of compliance with this Airworthiness Directive must be approved by the Chief, Aircraft Certification Program Office, FAA Central Region, Room 238, Mid-Continent Airport, Wichita, Kansas 67209; telephone (316) 942-4285. Cessna Single-Engine Customer Care Service Letter SE81-35, applicable to this AD, recommends compliance by November 1, 1981. This AD supersedes AD 81-01-04, Amendment 39-4007. This amendment becomes effective July 27, 1981. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_81-15-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 81-15-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Cessna Model P210N Airplanes Subject: Engine and Airplane Modifications Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/27/1981 Make: Cessna Aircraft Company Model: P210N 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: 81-15-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4168 AD NUMBER: 81-15-05 SUBJECT HEADING: Airworthiness Directives; Cessna Model P210N Airplanes ACTION: SUMMARY: DATES: Effective July 27, 1981. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 81-15-05 CESSNA: Amendment 39-4168. Applies to Model P210N (Serial Numbers P21000001 through P2100069O) airplanes certificated in any category. COMPLIANCE: Required as indicated unless already accomplished. To further reduce the possibility of engine detonation and improve the airplane climb performance within the next 100 hours time-in-service after the effective date of this AD, accomplish the following: A) Perform the engine and airplane modifications in accordance with Cessna Single- Engine Customer Care Service Information Letter SE81-35 dated May 29, 1981, and SE81-35 Supplement # 1 dated June 29, 1981. B) Install the cabin pressurization sonic nozzle identified as Cessna Assembly Part Number 2150001-11 in accordance with the aircraft service manual. NOTE: This part, previously required by Airworthiness Directive (AD) 81-01- 04, was installed on all airplanes manufactured subsequent to the airplane serial numbers included in AD 81-01-04. C) Airplanes may be flown in accordance with FAR 21.197 to a location where this AD may be accomplished. D) Any equivalent method of compliance with this Airworthiness Directive must be approved by the Chief, Aircraft Certification Program Office, FAA Central Region, Room 238, Mid-Continent Airport, Wichita, Kansas 67209; telephone (316) 942-4285. Cessna Single-Engine Customer Care Service Letter SE81-35, applicable to this AD, recommends compliance by November 1, 1981. This AD supersedes AD 81-01-04, Amendment 39-4007. This amendment becomes effective July 27, 1981. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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