AD 2021-26-15

Airworthiness directive · Stabilizer Control System · Vulcanair P.68C, P.68C-TC, P.68 Observer and 3 more

Effective
February 15, 2022
Published
January 11, 2022 · 87 FR 1340–1343
Issued
December 10, 2021
Models
P.68C, P.68C-TC, P.68 Observer, P.68 Observer 2, P.68R, P.68TC Observer
Data sheet
TCDSA31EU
Registered aircraft
46 matched by model
Product
Aircraft · Small airplane
ATA chapter
27 · Flight controls
Amendment
39-21874
Docket
FAA-2021-0871
Project
MCAI-2020-01581-A
Issued as
Final rule

Unofficial copy from the Federal Register XML, document 2022-00056. Only the govinfo PDF is the legal edition. DRS record last changed November 21, 2025.

On this page

Summary

The FAA is adopting a new airworthiness directive (AD) for certain km, Vulcanair S.p.A. Model P.68C, P.68C-TC, P.68 “OBSERVER,” P.68 OBSERVER 2, P.68R, and P.68TC OBSERVER airplanes. This AD was prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI identifies the unsafe condition as a damaged stabilator trim control cable. This AD requires inspecting the stabilator trim control cables and replacing if necessary. This AD also requires reporting the results of each inspection to Vulcanair S.p.A. The FAA is issuing this AD to address the unsafe condition on these products.

The airworthiness directive

2021-26-15 Vulcanair S.p.A.: Amendment 39-21874; Docket No. FAA-2021-0871; Project Identifier MCAI-2020-01581-A.

(a) Effective Date

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This airworthiness directive (AD) is effective February 15, 2022.

(b) Affected ADs

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None.

(c) Applicability

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This AD applies to Vulcanair S.p.A. (Vulcanair) Model P.68C, P.68C-TC, P.68 “OBSERVER,” P.68 OBSERVER 2, P.68R, and P.68TC OBSERVER airplanes, serial numbers 333, 337 to 339 inclusive, 378, 379, and 383 and larger (except serial numbers 387 and 398), certificated in any category, with a stabilator trim control cable part number 5.6067-1, 5.6161-1, 5.6171-1, 5.6231-2, or 5.6231-4 installed.

(d) Subject

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Joint Aircraft System Component (JASC) Code 2740, Stabilizer Control System.

(e) Unsafe Condition

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This AD was prompted by a damaged stabilator trim control cable connected to the stabilator trim actuator assembly, mounted on fuselage frame No. 16. The FAA is issuing this AD to detect and address failure of a stabilator trim control cable, which could prevent trim surface control thereby leaving the cable remaining in the last position. The unsafe condition, if not addressed, could result in reduced control of the airplane.

(f) Compliance

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Comply with this AD within the compliance times specified, unless already done.

(g) Required Actions

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Before a stabilator trim control cable part number 5.6067-1, 5.6161-1, 5.6171-1, 5.6231-2, or 5.6231-4 accumulates more than 400 hours time-in-service (TIS) since first installation on an airplane or within 50 hours TIS after the effective date of this AD, whichever occurs later, and thereafter at intervals not to exceed 50 hours TIS, visually inspect the stabilator trim control cable for broken wires and replace the stabilator trim control cable before further flight if there is broken wire in a strand in accordance with steps 1 through 22 of Part 2 Work Procedure in Vulcanair S.p.A. P.68 Variants Service Bulletin No. 263, dated October 20, 2020.

(h) Reporting

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Within 14 days after the initial inspection required by paragraph (g) of this AD or within 14 days after the effective date of this AD, whichever occurs later, report the results of the initial inspection to Vulcanair at continued.airworthiness@vulcanaair.com or at the address in paragraph (l)(3) of this AD. Thereafter, report the inspection results within 14 days after each inspection. Each report must include the following information:

(1) Owner/operator name, mailing address, phone number, and email address;

(2) Airplane model, serial number, and registration number;

(3) Airplane hours TIS at the time of the inspection;

(4) Stabilator trim control cable hours TIS at the time of the inspection;

(5) Date of the inspection;

(6) Inspection result (positive or negative); and

(7) A description of any non-conformity (damage).

(i) Special Flight Permit

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Special flight permits are prohibited.

(j) Alternative Methods of Compliance (AMOCs)

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(1) The Manager, International Validation Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the certification office, send it to the attention of the person identified in paragraph (k)(1) of this AD and email to: 9-AVS-AIR-730-AMOC@faa.gov.

(2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office.

(k) Related Information

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(1) For more information about this AD, contact Gregory Johnson, Aviation Safety Engineer, FAA, General Aviation & Rotorcraft Section, International Validation Section, 901 Locust, Room 301, Kansas City, MO 64106; phone: (720) 626-5462; email: gregory.johnson@faa.gov.

(2) Refer to European Union Aviation Safety Agency (EASA) AD 2020-0262, dated November 30, 2020, for more information. You may examine the EASA AD in the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA-2021-0871.

(l) Material Incorporated by Reference

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(1) The Director of the Federal Register approved the incorporation by reference of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.

(2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise.

(i) Vulcanair S.p.A. P.68 Variants Service Bulletin No. 263, dated October 20, 2020.

(ii) [Reserved]

(3) For service information identified in this AD, contact Vulcanair S.p.A., Fulvio Oloferni, via Giovanni Pascoli, 7, Naples, 80026, Italy; phone: +39 081 5918 135; email: airworthiness@vulcanair.com; website: www.vulcanair.com.

(4) You may view this service information at FAA, Airworthiness Products Section, Operational Safety Branch, 901 Locust, Kansas City, MO 64106. For information on the availability of this material at the FAA, call (817) 222-5110.

(5) You may view this service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, email: fr.inspection@nara.gov, or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html.

Rule preamble

The FAA’s background, reasoning and cost estimate, published with the AD.

DatesPage 1

This AD is effective February 15, 2022.

The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of February 15, 2022.

AddressesPage 1

For service information identified in this final rule, contact Vulcanair S.p.A., Fulvio Oloferni, via Giovanni Pascoli, 7, Naples, 80026, Italy; phone: +39 081 5918 135; email: airworthiness@vulcanair.com; website: www.vulcanair.com. You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 901 Locust, Kansas City, MO 64106. For information on the availability of this material at the FAA, call (817) 222-5110. It is also available at https://www.regulations.gov by searching for and locating Docket No. FAA-2021-0871.

For further information contactPage 2

Gregory Johnson, Aviation Safety Engineer, International Validation Section, FAA, 901 Locust, Room 301, Kansas City, MO 64106; phone: (720) 626-5462; email: gregory.johnson@faa.gov.

BackgroundPage 2

The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to certain serial-numbered Vulcanair S.p.A. Model P.68C, P.68C-TC, P.68 “OBSERVER,” P.68 OBSERVER 2, P.68R, and P.68TC OBSERVER airplanes. The NPRM published in the Federal Register on October 8, 2021 (86 FR 56229). The NPRM was prompted by MCAI originated by the European Union Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Union. EASA issued EASA AD 2020-0262, dated November 30, 2020 (referred to after this as “the MCAI”), to correct an unsafe condition on certain serial-numbered Vulcanair S.p.A. Model P.68R, P.68C, P.68C-TC, P.68 “OBSERVER,” P.68 “OBSERVER 2,” and P.68TC “OBSERVER” airplanes. The MCAI states:

Two occurrences have been reported of finding a damaged stabilator trim control cable connected to the stabilator trim actuator assembly, mounted on fuselage frame No.16. The related technical investigation concluded that the cause of the damage is a design issue.

This condition, if not detected and corrected, could lead to failure of an affect [sic] part, preventing trim surface control (remaining in the last position), possibly resulting in reduced control of the aeroplane.

To address this potential unsafe condition, and pending a design improvement, Vulcanair published the [service bulletin] SB, to provide inspection instructions for detecting damage.

For the reasons described above, this [EASA] AD requires repetitive inspections of the affected parts, and, depending on findings, replacement.

This [EASA] AD is considered to be an interim action and further [EASA] AD action may follow.

You may examine the MCAI in the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA-2021-0871.

CommentsPage 2

The FAA received no comments on the NPRM or on the determination of the costs.

ConclusionPage 2

This product has been approved by the aviation authority of another country and is approved for operation in the United States. Pursuant to the FAA's bilateral agreement with this State of Design Authority, it has notified the FAA of the unsafe condition described in the MCAI referenced above. The FAA determined that air safety requires adopting this AD as proposed. Accordingly, the FAA is issuing this AD to address the unsafe condition on these products. This AD is adopted as proposed in the NPRM.

Related Service Information Under 1 CFR Part 51Page 2

The FAA reviewed Vulcanair S.p.A. P.68 Variants Service Bulletin No. 263, dated October 20, 2020. The service information contains procedures for repetitively inspecting each stabilator trim control cable part number 5.6067-1, 5.6161-1, 5.6171-1, 5.6231-2, or 5.6231-4 for broken wires and replacing the cable if necessary. This service information is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the ADDRESSES section.

Interim actionPage 2

The FAA considers this AD an interim action. The inspection reports required by this AD will enable the manufacturer to obtain better insight into the nature, cause, and extent of the damage, and eventually to develop final action to address the unsafe condition. Once final action has been identified, the FAA might consider further rulemaking.

Costs of CompliancePage 2

The FAA estimates that this AD affects 127 airplanes of U.S. registry.

The FAA estimates the following costs to comply with this AD:

Estimated Costs
ActionLabor costParts costCost per airplaneCost on U.S. operators
Inspection0.50 work-hour × $85 per hour = $42.50 per inspection cycle$0$42.50 per inspection cycle$5,397.50 per inspection cycle.
Report1 work-hour × $85 per hour = $85 per reporting cycle$0$85 per inspection cycle$10,795 per inspection cycle.

The FAA estimates the following costs to do any replacements that would be required based on the results of the inspection. The FAA has no way of determining the number of airplanes that might need this replacement:

On-Condition Costs
ActionLabor costParts costCost per airplane
Replacement2 work-hours × $85 per hour = $170$340$510
Paperwork reduction actPage 3

A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to a penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a currently valid OMB Control Number. The OMB Control Number for this information collection is 2120-0056. Public reporting for this collection of information is estimated to be approximately 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, completing and reviewing the collection of information. All responses to this collection of information are mandatory. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden to: Information Collection Clearance Officer, Federal Aviation Administration, 10101 Hillwood Parkway, Fort Worth, TX 76177-1524.

Authority for This RulemakingPage 3

Title 49 of the United States Code specifies the FAA's authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. Subtitle VII: Aviation Programs, describes in more detail the scope of the Agency's authority.

The FAA is issuing this rulemaking under the authority described in Subtitle VII, Part A, Subpart III, Section 44701: General requirements. Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action.

Regulatory findingsPage 3

This AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify that this AD:

(1) Is not a “significant regulatory action” under Executive Order 12866,

(2) Will not affect intrastate aviation in Alaska, and

(3) Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act.

The amendmentPage 3

Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows:

Adoption of the amendmentPage 3

1. The authority citation for part 39 continues to read as follows:

2. The FAA amends § 39.13 by adding the following new airworthiness directive:

Affected TCDS · 1

The type certificate data sheets for the models this AD names, matched by model and maker.

Registered aircraft · 46

Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.

By aircraft maker
  • Partenavia34 aircraft
  • Vulcanair12 aircraft
By year built
19802023
Registered aircraft by year built: 36 aircraft
19801
19822
19839
19844
19853
19862
19902
19912
20021
20042
20074
20091
20121
20131
20231

10 with no year recorded

By model

Aircraft

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