AD 2018-19-07

We are adopting a new airworthiness directive (AD) for all Airbus SAS Model A300 series airplanes; Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called Model A300-600 series airplanes); and Model A310 series airplanes. This AD was prompted by a report of yellow hydraulic system failure, including both braking accumulators, due to failure of the parking brake operated valve (PBOV). This AD requires replacement of a certain PBOV with a different PBOV. We are issuing this AD to address the unsafe condition on these products.

Final rule.

Adoption of 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

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

Authority: 49 U.S.C. 106(g), 40113, 44701.

Sec. 39.13 [Amended]

0 2. The FAA amends Sec. 39.13 by adding the following new airworthiness directive (AD):

2018-19-07 Airbus SAS: Amendment 39-19407; Docket No. FAA-2018-0301; Product Identifier 2017-NM-112-AD.

(a) Effective Date

This AD is effective November 13, 2018.

(b) Affected ADs

None.

(c) Applicability

This AD applies to the Airbus SAS airplanes identified in paragraphs (c)(1) through (c)(6) of this AD, certificated in any category, all manufacturer serial numbers.
(1) Model A300 B2-1A, B2-1C, B2K-3C, B2-203, B4-2C, B4-103, and B4-203 airplanes.
(2) Model A300 B4-601, B4-603, B4-620, and B4-622 airplanes.

[[Page50484]]

(3) Model A300 B4-605R and B4-622R airplanes.
(4) Model A300 F4-605R and F4-622R airplanes.
(5) Model A300 C4-605R Variant F airplanes.
(6) Model A310-203, -204, -221, -222, -304, -322, -324, and -325 airplanes.

(d) Subject

Air Transport Association (ATA) of America Code 32, Landing gear.

(e) Reason

This AD was prompted by a report of yellow hydraulic system failure, including both braking accumulators, due to failure of the parking brake operated valve (PBOV). We are issuing this AD to address failure of the PBOV, which could result in no braking capability during ground operations, possibly leading to damage to the airplane and injury to people on the ground.

(f) Compliance

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

(g) PBOV Replacement

Within 60 months after the effective date of this AD, replace the PBOV having part number (P/N) A25315-1 with a PBOV having P/N A25315020-2, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A300-32-0467, dated July 4, 2017; Airbus Service Bulletin A300-32-6117, dated July 4, 2017; or Airbus Service Bulletin A310-32-2151, dated July 4, 2017; as applicable.

(h) Parts Prohibition

(1) After modification of an airplane as required by paragraph (g) of this AD, do not install any PBOV having P/N A25315-1 on that airplane.
(2) For an airplane that, as of the effective date of this AD, has a PBOV having P/N A25315020-2 installed: As of the effective date of this AD, do not install any PBOV having P/N A25315-1 on that airplane.

(i) Other FAA AD Provisions

The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, International Section, Transport Standards 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 International Section, send it to the attention of the person identified in paragraph (j)(2) of this AD. Information may be emailed to: 9-ANM-116-AMOC-REQUESTS@faa.gov. 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.
(2) Contacting the Manufacturer: For any requirement in this AD to obtain corrective actions from a manufacturer, the action must be accomplished using a method approved by the Manager, International Section, Transport Standards Branch, FAA; or the European Aviation Safety Agency (EASA); or Airbus SAS's EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOA-authorized signature.
(3) Required for Compliance (RC): If any service information contains proceduresor tests that are identified as RC, those procedures and tests must be done to comply with this AD; any procedures or tests that are not identified as RC are recommended. Those procedures and tests that are not identified as RC may be deviated from using accepted methods in accordance with the operator's maintenance or inspection program without obtaining approval of an AMOC, provided the procedures and tests identified as RC can be done and the airplane can be put back in an airworthy condition. Any substitutions or changes to procedures or tests identified as RC require approval of an AMOC.

(j) Related Information

(1) Refer to Mandatory Continuing Airworthiness Information (MCAI) EASA AD 2017-0153, dated August 17, 2017, for related information. This MCAI may be found in the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2018-0301.
(2) For more information about this AD, contact Dan Rodina, Aerospace Engineer, International Section, Transport Standards Branch, FAA, 2200 South 216th St., Des Moines, WA 98198; telephone and fax 206-231-3225.

(k) Material Incorporated by Reference

(1) The Director of the Federal Register approved the incorporation by reference (IBR) 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) Airbus Service Bulletin A300-32-0467, dated July 4, 2017.
(ii) Airbus Service Bulletin A300-32-6117, dated July 4, 2017.
(iii) Airbus Service Bulletin A310-32-2151, dated July 4, 2017.
(3) For service information identified in this AD, contact Airbus SAS, Airworthiness Office--EAW, Rond-Point Emile Dewoitine No: 2, 31700 Blagnac Cedex, France; telephone +33 5 61 93 36 96; fax +33 5 61 93 44 51; email account.airworth-eas@airbus.com; internet http://www.airbus.com.
(4) You may view thisservice information at the FAA, Transport Standards 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 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, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.

Discussion

We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to all Airbus SAS Model A300 series airplanes; Model A300 B4-600, A300 B4-600R, and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called Model A300-600 series airplanes); and Model A310 series airplanes. The NPRM published in the Federal Register on April 27, 2018 (83 FR 18483). The NPRM was prompted by a report of yellow hydraulic system failure, including both braking accumulators, due to failure of the PBOV. The NPRM proposed to require replacement of a certain PBOV with a different PBOV.
We are issuing this AD to address failure of the PBOV, which could result in no braking capability during ground operations, possibly leading to damage to the airplane and injury to people on the ground.
The European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of theEuropean Union, has issued EASA AD 2017-0153, dated August 17, 2017 (referred to after this as the Mandatory Continuing Airworthiness Information, or ``the MCAI''), to correct an unsafe condition for all Airbus SAS Model A300 series airplanes; Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called Model A300-600 series airplanes); and Model A310 series airplanes. The MCAI states:

An occurrence was reported where yellow hydraulic system, including both braking accumulators, was lost. This was confirmed by ECAM [electronic centralized aircraft monitor] warnings and single chimes during taxiing. Normal braking on green hydraulic circuit was used until aeroplane stopped at parking position. A few seconds later, the aeroplane slowly accelerated, until colliding with a wall and a bus. The crew reported that the parking brake was selected and full braking pedals were applied, but with no effect since normal braking wasinhibited after Parking Brake was set to ON. Investigation results identified that this occurrence was due to failure of the parking brake operated valve (PBOV), Part Number (P/ N) A25315-1.
This condition [parking brake failure], if not corrected, could lead to further incidents, possibly resulting in damage to the aeroplane and injury to persons on the ground.
Prompted by this event, Airbus issued Service Bulletin (SB) A300-32-0467, SB A310-32-2151, SB A300-32-6117 and SB A300-32-9023, as applicable, to provide instructions for in-service installation of the PBOV P/N A25315020-2 introduced by Airbus Modification 13201 for A300/A310/A300-600 and Airbus Modification 19601 for A300-600ST.
For the reason described above, this [EASA] AD requires replacement of the PBOV P/N A25315-1 by PBOV P/N A25315020-2.

You may examine the MCAI in the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2018- 0301.

Comments

Wegave the public the opportunity to participate in developing this final rule. The following presents the comments received on the NPRM and the FAA's response to each comment.

Support for the NPRM

The Air Line Pilots Association, International (ALPA) indicated its support for the NPRM.

[[Page 50483]]

Request To Revise the Compliance Time in the Proposed AD

Airbus requested that the compliance time of the proposed AD be revised so operators would have all required actions completed by August 31, 2022, instead of 60 months after the effective date of the final rule. Airbus noted that August 31, 2022, is the calendar date that corresponds with the compliance time in EASA AD 2017-0153, which is 60 months after August 31, 2017 (the effective date of EASA AD 2017- 0153).
We disagree with the commenter's request. In consideration of the average utilization rate by the affected U.S. operators, the practical aspects of an orderly modification of the U.S. fleet duringregular maintenance periods, and the availability of required parts, we have determined that a 60-month compliance time is appropriate. However, most ADs, including this one, permit operators to accomplish the requirements of an AD at a time earlier then the specified compliance time.
Furthermore, using the compliance time proposed by Airbus would effectively reduce the compliance time for this AD, and we would have to provide an additional public comment period, which would further delay the issuance of this AD. We have not changed this AD in regard to this issue.

Conclusion

We reviewed the relevant data, considered the comments received, and determined that air safety and the public interest require adopting this final rule as proposed, except for minor editorial changes. We have determined that these minor changes:
Are consistent with the intent that was proposed in the NPRM for addressing the unsafe condition; and
Do not add any additional burden upon the public than was already proposed in the NPRM.

Related Service Information Under 1 CFR Part 51

Airbus SAS has issued Service Bulletin A300-32-0467, dated July 4, 2017; Service Bulletin A300-32-6117, dated July 4, 2017; and Service Bulletin A310-32-2151, dated July 4, 2017. This service information describes procedures for replacing the PBOV. These documents are distinct since they apply to different airplane models. 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.

Costs of Compliance

We estimate that this AD affects 147 airplanes of U.S. registry. We estimate the following costs to comply with this AD:

Estimated Costs ----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Action Labor cost Parts costproduct operators ---------------------------------------------------------------------------------------------------------------- PBOV replacement...................... 6 work-hours x $85 per $4,764 $5,274 $775,278
hour = $510. ----------------------------------------------------------------------------------------------------------------

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.
We are 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.
This AD is issued in accordance with authority delegated by the Executive Director, Aircraft Certification Service, as authorized by FAA Order 8000.51C. In accordance with that order, issuance of ADs is normally a function of the Compliance and Airworthiness Division, but during this transition period, the Executive Director has delegated the authority to issue ADs applicable to transport category airplanes and associated appliances to the Director of the System Oversight Division.

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) Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979),
(3) Will not affect intrastate aviation in Alaska, and
(4) 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.