AD 88-21-04

final rule

Airworthiness Directives; Partenavia Model P 68 Series Airplanes

AD Number
88-21-04
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft Vulcanair S.p.A. P 68 Airworthiness Directives; Partenavia Model P 68 Series Airplanes
aircraft Vulcanair S.p.A. P 68 Observer Airworthiness Directives; Partenavia Model P 68 Series Airplanes
aircraft Vulcanair S.p.A. P 68B Airworthiness Directives; Partenavia Model P 68 Series Airplanes
aircraft Vulcanair S.p.A. P 68C Airworthiness Directives; Partenavia Model P 68 Series Airplanes
aircraft Vulcanair S.p.A. P 68C-TC Airworthiness Directives; Partenavia Model P 68 Series Airplanes
aircraft Vulcanair S.p.A. P68TC Observer Airworthiness Directives; Partenavia Model P 68 Series Airplanes

Unsafe Condition

Pitch instability due to potential damage to left and right stabilator trim tabs and stabilator rear spar.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Remove, visually inspect, and replace or modify the left and right stabilator trim tabs and stabilator rear spar as per Partenavia Service Bulletin No. 73, Revision 1. If trim tab damage is found, inspect and repair stabilator, control system, attachments, stops, rigging, and controls before further flight.

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, unless already accomplished

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Vulcanair S.p.A. Model P 68 Series (Serial Numbers 1 through 381)

AI-generated summary from the source AD text. Verify against the official source before acting.

Federal Register Abstract

Stabilator Trim Tabs

Applicability Source Text

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AD Number:
88-21-04
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Partenavia Model P 68 Series Airplanes
Subject:
Stabilator Trim Tabs
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
10/27/1988
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: 88-21-04
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-6026

AD NUMBER:   88-21-04

SUBJECT HEADING:   Airworthiness Directives; Partenavia Model P 68 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective October 27, 1988.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   88-21-04 PARTENAVIA COSTRUZIONE AERONAUTICHE, S.P.A.: Amendment 39-6026. Applies to P 68 Series (Serial Numbers 1 through 381) airplanes 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 preclude pitch instability, accomplish the following:

(a) Remove, visually inspect, and replace or modify as required, the left and right stabilator trim tabs, and, as required modify the stabilator rear spar as described in Paragraph 2 of Partenavia Service Bulletin No. 73, Revision 1, dated July 11, 1988.

(b) If the inspection specified in Paragraph (a) of this AD shows damage to either trim tab, prior to further flight inspect for damage and repair, as required, the stabilator, control system, attachments, stops, rigging, and controls.

(c) Airplanes may be flown in accordance with FAR 21.197 to a location where this AD may be accomplished.

(d) An equivalent means of compliance with this AD may be used if approved by the Manager, Brussels Aircraft Certification Office (AEU-100), c/o American Embassy, B-1000, Brussels, Belgium; telephone
32 2 513.38.30, extension 2710.

All persons affected by this directive may obtain copies of the document(s) referred to herein upon request to Partenavia Costruzione Aeronautiche, S.p.A., 80026 Casoria (NA) Via G. Pascoli No. 7, Italy; telephone (081) 7596311; or may examine these documents at the FAA, Office of the Assistant Chief Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106.

This amendment, 39-6026, becomes effective on October 27, 1988.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_88-21-04.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
88-21-04
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Partenavia Model P 68 Series Airplanes
Subject:
Stabilator Trim Tabs
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
10/27/1988
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: 88-21-04
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-6026

AD NUMBER:   88-21-04

SUBJECT HEADING:   Airworthiness Directives; Partenavia Model P 68 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective October 27, 1988.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   88-21-04 PARTENAVIA COSTRUZIONE AERONAUTICHE, S.P.A.: Amendment 39-6026. Applies to P 68 Series (Serial Numbers 1 through 381) airplanes 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 preclude pitch instability, accomplish the following:

(a) Remove, visually inspect, and replace or modify as required, the left and right stabilator trim tabs, and, as required modify the stabilator rear spar as described in Paragraph 2 of Partenavia Service Bulletin No. 73, Revision 1, dated July 11, 1988.

(b) If the inspection specified in Paragraph (a) of this AD shows damage to either trim tab, prior to further flight inspect for damage and repair, as required, the stabilator, control system, attachments, stops, rigging, and controls.

(c) Airplanes may be flown in accordance with FAR 21.197 to a location where this AD may be accomplished.

(d) An equivalent means of compliance with this AD may be used if approved by the Manager, Brussels Aircraft Certification Office (AEU-100), c/o American Embassy, B-1000, Brussels, Belgium; telephone
32 2 513.38.30, extension 2710.

All persons affected by this directive may obtain copies of the document(s) referred to herein upon request to Partenavia Costruzione Aeronautiche, S.p.A., 80026 Casoria (NA) Via G. Pascoli No. 7, Italy; telephone (081) 7596311; or may examine these documents at the FAA, Office of the Assistant Chief Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106.

This amendment, 39-6026, becomes effective on October 27, 1988.

FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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