AD 91-22-06
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Vulcanair S.p.A. | P 68 | Airworthiness Directives; PARTENAVIA P-68 Series (not applicable to AP-68TP Series) airplanes (serial numbers 1 through 327), certificated in any category. |
| aircraft | Vulcanair S.p.A. | P 68 Observer | Airworthiness Directives; PARTENAVIA P-68 Series (not applicable to AP-68TP Series) airplanes (serial numbers 1 through 327), certificated in any category. |
| aircraft | Vulcanair S.p.A. | P 68B | Airworthiness Directives; PARTENAVIA P-68 Series (not applicable to AP-68TP Series) airplanes (serial numbers 1 through 327), certificated in any category. |
| aircraft | Vulcanair S.p.A. | P 68C | Airworthiness Directives; PARTENAVIA P-68 Series (not applicable to AP-68TP Series) airplanes (serial numbers 1 through 327), certificated in any category. |
| aircraft | Vulcanair S.p.A. | P 68C-TC | Airworthiness Directives; PARTENAVIA P-68 Series (not applicable to AP-68TP Series) airplanes (serial numbers 1 through 327), certificated in any category. |
| aircraft | Vulcanair S.p.A. | P68TC Observer | Airworthiness Directives; PARTENAVIA P-68 Series (not applicable to AP-68TP Series) airplanes (serial numbers 1 through 327), certificated in any category. |
Unsafe Condition
Horizontal stabilator failure, which could result in loss of control of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 10 hours time-in-service after the effective date, change airspeed limitations in the Flight Manual to match Part A of Partenavia SB No. 85, install the Operating Limitation Placard on the instrument panel. Within 500 hours time-in-service after the effective date, install a reinforcement strip on the lower side of the horizontal tailplane per Part B of SB No. 85. After completing paragraph (b), remove the placard and restore original flight manual limitations.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 10 hours time-in-service (TIS) after the effective date of this AD, and within the next 500 hours TIS after the effective date.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Vulcanair S.p.A. P-68 Series (not AP-68TP Series) airplanes, serial numbers 1 through 327, certificated in any category.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Placard Operating Limitations
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_91-22-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 91-22-06 Document Type: AD Final Rules Docket Number: 91-CE-75-AD Subject Heading: Airworthiness Directives; PARTENAVIA P-68 Series (not applicable to AP-68TP Series) airplanes (seria...Show more Subject: Placard Operating Limitations Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 11/12/1991 Make: Vulcanair S.p.A. Model: P 68 | P 68 Observer | P 68B | P 68C | P 68C-TC | P68TC Observer 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: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 91-22-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 91-CE-75-AD AMENDMENT: 39-8066 AD NUMBER: 91-22-06 SUBJECT HEADING: Airworthiness Directives; PARTENAVIA P-68 Series (not applicable to AP-68TP Series) airplanes (serial numbers 1 through 327), certificated in any category. ACTION: SUMMARY: DATES: Effective November 12, 1991. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 91-22-06 PARTENAVIA: Amendment 39-8066. Docket No.91-CE-75-AD. Applicability: P-68 Series (not applicable to AP-68TP Series) airplanes (serial numbers 1 through 327), certificated in any category. Compliance: Required as indicated, unless already accomplished. To prevent horizontal stabilator failure, which could result in loss of control of the airplane, accomplish the following: (a) Within the next 10 hours time-in-service (TIS) after the effective date of this AD, accomplish the following: (1) Change the airspeed limitations in Section 2 OPERATING LIMITATIONS of the Partenavia P-68 Flight Manual to correspond with Part A of Partenavia Service Bulletin (SB) No. 85, dated July 16, 1991, and operate the airplane accordingly. (2) Install the Operating Limitation Placard that is included with Partenavia SB No. 85, dated July 16, 1991, on the airplane instrument panel within the pilot's clear view and operate the airplane accordingly. (b) Within the next 500 hours TIS after the effective date of this AD, install a reinforcement strip on the lower side of the horizontal tailplane in accordance with the instructions in paragraphs 1 through 5 of Part B of Partenavia SB No. 85, dated July 16, 1991. (c) After compliance with paragraph (b) of this AD, paragraphs (a)(1) and (a)(2) of this AD no longer apply and the Operating Limitation Placard may be removed and the flight manual limitations may be restored to their original measurements. (d) 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. (e) An alternative method of compliance or adjustment of the compliance times that provides an equivalent level of safety, may be approved by the Manager, Brussels Aircraft Certification Office, FAA, Europe, Africa, and Middle East Office, c/o American Embassy, B-1000 Brussels, Belgium. The request should be forwarded through an appropriate FAA Maintenance Inspector, who may add comments and then send it to the Manager, Brussels Aircraft Certification Office. (f) The modifications and installations required by this AD shall be done in accordance with Partenavia Service Bulletin No. 85, dated July 16, 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 Partenavia, Costruzioni Aeronautiche S.p.A., Via G. Pascoli n. 7, 80026 Casoria (NA), Italy. 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 (39-8066, AD 91-22-06) becomes effective on November 12, 1991. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_91-22-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 91-22-06 Document Type: AD Final Rules Docket Number: 91-CE-75-AD Subject Heading: Airworthiness Directives; PARTENAVIA P-68 Series (not applicable to AP-68TP Series) airplanes (seria...Show more Subject: Placard Operating Limitations Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 11/12/1991 Make: Vulcanair S.p.A. Model: P 68 | P 68 Observer | P 68B | P 68C | P 68C-TC | P68TC Observer 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: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 91-22-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 91-CE-75-AD AMENDMENT: 39-8066 AD NUMBER: 91-22-06 SUBJECT HEADING: Airworthiness Directives; PARTENAVIA P-68 Series (not applicable to AP-68TP Series) airplanes (serial numbers 1 through 327), certificated in any category. ACTION: SUMMARY: DATES: Effective November 12, 1991. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 91-22-06 PARTENAVIA: Amendment 39-8066. Docket No.91-CE-75-AD. Applicability: P-68 Series (not applicable to AP-68TP Series) airplanes (serial numbers 1 through 327), certificated in any category. Compliance: Required as indicated, unless already accomplished. To prevent horizontal stabilator failure, which could result in loss of control of the airplane, accomplish the following: (a) Within the next 10 hours time-in-service (TIS) after the effective date of this AD, accomplish the following: (1) Change the airspeed limitations in Section 2 OPERATING LIMITATIONS of the Partenavia P-68 Flight Manual to correspond with Part A of Partenavia Service Bulletin (SB) No. 85, dated July 16, 1991, and operate the airplane accordingly. (2) Install the Operating Limitation Placard that is included with Partenavia SB No. 85, dated July 16, 1991, on the airplane instrument panel within the pilot's clear view and operate the airplane accordingly. (b) Within the next 500 hours TIS after the effective date of this AD, install a reinforcement strip on the lower side of the horizontal tailplane in accordance with the instructions in paragraphs 1 through 5 of Part B of Partenavia SB No. 85, dated July 16, 1991. (c) After compliance with paragraph (b) of this AD, paragraphs (a)(1) and (a)(2) of this AD no longer apply and the Operating Limitation Placard may be removed and the flight manual limitations may be restored to their original measurements. (d) 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. (e) An alternative method of compliance or adjustment of the compliance times that provides an equivalent level of safety, may be approved by the Manager, Brussels Aircraft Certification Office, FAA, Europe, Africa, and Middle East Office, c/o American Embassy, B-1000 Brussels, Belgium. The request should be forwarded through an appropriate FAA Maintenance Inspector, who may add comments and then send it to the Manager, Brussels Aircraft Certification Office. (f) The modifications and installations required by this AD shall be done in accordance with Partenavia Service Bulletin No. 85, dated July 16, 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 Partenavia, Costruzioni Aeronautiche S.p.A., Via G. Pascoli n. 7, 80026 Casoria (NA), Italy. 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 (39-8066, AD 91-22-06) becomes effective on November 12, 1991. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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