88 FR 71 pgs. 22359-22362 - Airworthiness Directives; Gulfstream Aerospace LP (Type Certificate Previously Held by Israel Aircraft Industries, Ltd.) Airplanes
Type: RULEVolume: 88Number: 71Pages: 22359 - 22362
Pages: 22359, 22360, 22361, 22362Docket number: [Docket No. FAA-2022-0994; Project Identifier MCAI-2022-00052-T; Amendment 39-22395; AD 2023-06-09]
FR document: [FR Doc. 2023-07739 Filed 4-12-23; 8:45 am]
Agency: Transportation Department
Sub Agency: Federal Aviation Administration
Official PDF Version: PDF Version
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-0994; Project Identifier MCAI-2022-00052-T; Amendment 39-22395; AD 2023-06-09]
RIN 2120-AA64
Airworthiness Directives; Gulfstream Aerospace LP (Type Certificate Previously Held by Israel Aircraft Industries, Ltd.) Airplanes
AGENCY:
Federal Aviation Administration (FAA), DOT.
ACTION:
Final rule.
SUMMARY:
[top] The FAA is adopting a new airworthiness directive (AD) for certain Gulfstream Aerospace LP Model Galaxy
DATES:
This AD is effective May 18, 2023.
The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of May 18, 2023.
ADDRESSES:
AD Docket: You may examine the AD docket at regulations.gov under Docket No. FAA-2022-0994; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this final rule, the mandatory continuing airworthiness information (MCAI), any comments received, and other information. The address for Docket Operations is U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590.
Material Incorporated by Reference:
• For material incorporated by reference in this AD, contact CAAI, P.O. Box 1101, Golan Street, Airport City, 70100, Israel; telephone 972-3-9774665; fax 972-3-9774592; email aip@mot.gov.il. You may find this material on the CAAI website at caa.gov.il.
• You may view this material at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195. It is also available in the AD docket at regulations.gov under Docket No. FAA-2022-0994.
FOR FURTHER INFORMATION CONTACT:
Dan Rodina, Aerospace Engineer, Large Aircraft Section, FAA, International Validation Branch, FAA, 2200 South 216th Street, Des Moines, WA 98198; telephone 206-231-3225; email dan.rodina@faa.gov.
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to certain Gulfstream Aerospace LP Model Gulfstream G200 airplanes. The NPRM published in the Federal Register on August 17, 2022 (87 FR 50588). The NPRM was prompted by AD ISR I-57-2021-12-4, dated January 1, 2022 (CAAI AD ISR I-57-2021-12-4) (also referred to as the MCAI), issued by CAAI, which is the aviation authority for Israel. There were reports that wing flap fairing debonding and corrosion were discovered at the lower skin of rib 3 and rib 11 on both wings. The MCAI states that the reason for the AD is to prevent the possibility of flap fairing debonding, moisture intrusion and wing lower skin corrosion at rib 3 and rib 11.
In the NPRM, the FAA proposed to require an inspection for corrosion in certain areas of the wing skin fairings, additional inspections if necessary, resealing the fairings with new fillet seal, and applicable corrective actions, as specified in CAAI AD ISR I-57-2021-12-4.
You may examine the MCAI in the AD docket at regulations.gov under Docket No. FAA-2022-0994.
The FAA issued a supplemental notice of proposed rulemaking (SNPRM) to amend 14 CFR part 39 by adding an AD that would apply to certain Gulfstream Aerospace LP Model Galaxy airplanes and Model Gulfstream 200 airplanes. The SNPRM published in the Federal Register on December 13, 2022 (87 FR 76148). The SNPRM was prompted a determination that Model Galaxy airplanes must be added to the applicability. In the SNPRM, the FAA proposed to require an inspection for corrosion in certain areas of the wing skin fairings, additional inspections if necessary, resealing the fairings with new fillet seal, and applicable corrective actions. The FAA is issuing this AD to address flap fairing debonding and moisture intrusion that might lead to lower wing skin corrosion and cracking on both wings, and reduced structural integrity of the wings.
Discussion of Final Airworthiness Directive
Comments
The FAA received no comments on the SNPRM or on the determination of the cost to the public.
Conclusion
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 reviewed the relevant data and determined that air safety requires adopting this AD as proposed. Accordingly, the FAA is issuing this AD to address the unsafe condition on this product. Except for minor editorial changes, this AD is adopted as proposed in the SNPRM. None of the changes will increase the economic burden on any operator.
Related Service Information Under 1 CFR Part 51
CAAI AD ISR I-57-2021-12-4, dated January 1, 2022, describes procedures for an inspection for corrosion in the area of the wing skin (or doubler if installed) under the rib 3 and rib 11 fairings, a penetration or eddy current inspection for cracks if corrosion was found, a measurement of the thickness of remaining wing skin (or doubler) if no cracks were found, resealing of rib 3 and rib 11 fairings with new fillet seal, and applicable corrective actions. Corrective actions include cleaning and removing corrosion, crack repair, and repair of fairing installation locations with a certain thickness reduction.
This material 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.
Costs of Compliance
The FAA estimates that this AD affects 168 airplanes of U.S. registry. The FAA estimates the following costs to comply with this AD:
| Labor cost | Parts cost | Cost per product | Cost on U.S. operators |
|---|---|---|---|
| 29 work-hours × $85 per hour = $2,465 | Minimal | $2,465 | $414,120 |
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The FAA estimates the following costs to do any necessary on-condition action that would be required based on the results of any required actions. The FAA has no way of determining the number of aircraft that might need these on-condition actions:
| Labor cost | Parts cost | Cost per product |
|---|---|---|
| Up to 10 work-hours × $85 per hour = $850 | $0 | Up to $850 |
| *?The FAA has received no definitive data on which to base the cost estimates for the on-condition repairs specified in this AD. | ||
The FAA has included all known costs in its cost estimate. According to the manufacturer, however, some or all of the costs of this AD may be covered under warranty, thereby reducing the cost impact on affected operators.
Authority for This Rulemaking
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 Findings
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.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.
The Amendment
Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows:
PART 39-AIRWORTHINESS DIRECTIVES
1. The authority citation for part 39 continues to read as follows:
Authority:
49 U.S.C. 106(g), 40113, 44701.
§?39.13 [Amended]
2. The FAA amends §?39.13 by adding the following new airworthiness directive:
2023-06-09 Gulfstream Aerospace LP (Type Certificate Previously Held by Israel Aircraft Industries, Ltd.): Amendment 39-22395; Docket No. FAA-2022-0994; Project Identifier MCAI-2022-00052-T.
(a) Effective Date
This airworthiness directive (AD) is effective May 18, 2023.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Gulfstream Aerospace LP Model Galaxy airplanes and Model Gulfstream 200 airplanes, certificated in any category, serial numbers 004 through 250 inclusive.
(d) Subject
Air Transport Association (ATA) of America Code 57, Wings.
(e) Unsafe Condition
This AD was prompted by reports that wing flap fairing debonding and corrosion were discovered at the lower skin of rib 3 and rib 11 on both wings. The FAA is issuing this AD to address flap fairing debonding and moisture intrusion that might lead to lower wing skin corrosion and cracking on both wings, and reduced structural integrity of the wings.
(f) Compliance
Comply with this AD within the compliance times specified, unless already done.
(g) Requirements
Except as specified in paragraphs (h) and (i) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, Civil Aviation Authority of Israel (CAAI) AD ISR I-57-2021-12-4, dated January 1, 2022 (CAAI AD ISR I-57-2021-12-4).
(h) Exceptions to CAAI AD ISR I-57-2021-12-4
(1) Where CAAI AD ISR I-57-2021-12-4 refers to its effective date, this AD requires using the effective date of this AD.
(2) Where the Compliance paragraph of CAAI AD ISR I-57-2021-12-4 requires compliance at a certain time, replace the text "at the next suitable planned maintenance inspection within the next 24 months from the effective date of this AD" with "within 24 months after the effective date of this AD."
(3) Where the Action paragraph of CAAI AD ISR I-57-2021-12-4 refers to certain service information, replace the text "Gulfstream Service Bulletin No. 200-57-426, dated January 01, 2022, or later approved revision," with "Gulfstream Service Bulletin No. 200-57-426, Revision 1, dated June 16, 2022, or later approved revision."
(4) Where the service information specified in CAAI AD ISR I-57-2021-12-4 specifies to report to Gulfstream if "cracks were discovered" and "for any fairing installation location with one or more grid squares with thickness reduction of greater than 10%," for this AD, cracks and fairing installation locations with one or more grid squares with thickness reduction of greater than 10% must be repaired before further flight using a method approved by the Manager, International Validation Branch, FAA; or CAAI; or CAAI's authorized Designee. If approved by the authorized Designee, the approval must include the Designee's authorized signature.
(i) No Reporting Requirement
Although the service information referenced in CAAI AD ISR I-57-2021-12-4 specifies to submit certain information to the manufacturer, this AD does not include that requirement.
(j) Additional AD Provisions
[top] The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): 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 responsible Flight Standards Office, as appropriate. If sending information directly to the International Validation Branch, send it to the attention of the person identified in paragraph (k) of this AD. Information may be emailed to: 9-AVS-AIR-730-AMOC@faa.gov. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office.
(2) Contacting the Manufacturer: For any requirement in this AD to obtain instructions from a manufacturer, the instructions must be accomplished using a method approved by the Manager, International Validation Branch, FAA; or CAAI; or CAAI's authorized Designee. If approved by the CAAI Designee, the approval must include the Designee's authorized signature.
(k) Additional Information
For more information about this AD, contact Dan Rodina, Aerospace Engineer, Large Aircraft Section, FAA, International Validation Branch, FAA, 2200 South 216th Street, Des Moines, WA 98198; telephone 206-231-3225; email dan.rodina@faa.gov.
(l) Material Incorporated by Reference
(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 this AD specifies otherwise.
(i) Civil Aviation Authority of Israel (CAAI) AD ISR I-57-2021-12-4, dated January 1, 2022.
(ii) [Reserved]
(3) For CAAI AD ISR I-57-2021-12-4, contact Civil Aviation Authority of Israel (CAAI), P.O. Box 1101, Golan Street, Airport City, 70100, Israel; telephone 972-3-9774665; fax 972-3-9774592; email aip@mot.gov.il. You may find this CAAI AD on the CAAI website at caa.gov.il.
(4) You may view this material at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195.
(5) You may view this material 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: www.archives.gov/federal-register/cfr/ibr-locations.html.
Issued on March 17, 2023.
Christina Underwood,
Acting Director, Compliance & Airworthiness Division, Aircraft Certification Service.
[FR Doc. 2023-07739 Filed 4-12-23; 8:45 am]
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