## 23897 Federal Register / Vol. 79, No. 82 / Tuesday, April 29, 2014 / Rules and Regulations

53A2473, Revision 4, dated December 1, 2011, specifies to contact Boeing for repair instructions, the repair instructions must be approved in accordance with the procedures specified in paragraph (q) of this AD. All provisions of AD 2010–14–07 that are not specifically referenced in this paragraph remain fully applicable and must be complied with.

(2) Accomplishing the inspections, repairs,
and interim modification in accordance with Boeing Alert Service Bulletin 747–53A2427, Revision 7, dated July 19, 2013, is an acceptable terminating action for the corresponding inspections, repairs and
interim modification at the BS 2598 bulkhead required by paragraphs (i), (j), (o), (s), (t), (u), and (v) of AD 2010–14–07, Amendment 39– 16352 (75 FR 38001, July 1, 2010). Where Boeing Alert Service Bulletin 747–53A2427, Revision 7, dated July 19, 2013, specifies to contact Boeing for repair data, the repair data must be approved in accordance with the procedures specified in paragraph (q) of this AD. All provisions of AD 2010–14–07 that are not specifically referenced in this paragraph remain fully applicable and must be complied with.

(p) Credit for Previous Actions

This paragraph provides credit for the actions required by paragraphs (g), (h), (i), and (n)(2) of this AD, if those actions were performed before the effective date of this AD using Boeing Alert Service Bulletin 747– 53A2427, Revision 6, dated July 14, 2011, provided that the additional actions added in Boeing Alert Service Bulletin 747–53A2427, Revision 7, dated July 19, 2013, are done within the applicable compliance times specified in paragraphs (g), (h), and (i) of this AD. Boeing Alert Service Bulletin 747– 53A2427, Revision 6, dated July 14, 2011, is not incorporated by reference in this AD.

(q) Alternative Methods of Compliance (AMOCs)

(1) The Manager, Seattle Aircraft Certification Office (ACO), 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 ACO, send it to the attention of the person identified in paragraph (r)(1) of this AD. Information may
be emailed to: 9-ANM-Seattle-ACO-AMOCRequests@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.

(3) An AMOC that provides an acceptable level of safety may be used for any repair required by this AD if it is approved by the Boeing Commercial Airplanes Organization Designation Authorization (ODA) that has been authorized by the Manager, Seattle ACO, to make those findings. For a repair method to be approved, the repair must meet the certification basis of the airplane, and the approval must specifically refer to this AD.

(4) Related portions or applicable paragraphs of AMOCs approved previously in accordance with AD 2010–14–07, Amendment 39–16352 (75 FR 38001, July 1, 2010), are approved as AMOCs for the corresponding provisions of paragraphs (g), (h), (i), (j), (k), and (l) of this AD. All new actions specified in paragraphs (g), (h), (i), (j), (k), and (l) of this AD that are not identified in a previously approved AMOC must still be

done.

(r) Related Information

(1) For more information about this AD, contact Nathan Weigand, Aerospace Engineer, Airframe Branch, ANM–120S, FAA, Seattle ACO, 1601 Lind Avenue SW., Renton, WA 98057–3356; phone: 425–917– 6428; fax: 425–917–6590; email: nathan.p.weigand@faa.gov.

(2) Service information identified in this AD that is not incorporated by reference in this AD may be viewed at the addresses specified in paragraphs (s)(3) and (s)(4) of

this AD.

(s) 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 the AD specifies otherwise.

(i) Boeing Alert Service Bulletin 747– 53A2427, Revision 7, dated July 19, 2013.

(ii) Boeing Service Bulletin 747–53A2473, Revision 4, dated December 1, 2011.

(iii) Boeing Alert Service Bulletin 747– 53A2837, dated July 13, 2012.

(3) For service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H–65, Seattle, WA 98124–2207; telephone 206– 544–5000, extension 1; fax 206–766–5680;

Internet https://www.myboeingfleet.com.

(4) You may view this service information at FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425–227–1221.

(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/ibrlocations.html.

Issued in Renton, Washington, on March

17, 2014.
Dionne Palermo,
Acting Manager, Transport Airplane Directorate, Aircraft Certification Service.

[FR Doc. 2014–07339 Filed 4–28–14; 8:45 am]

**BILLING CODE 4910–13–P** 

### DEPARTMENT OF TRANSPORTATION

**Federal Aviation Administration**

**14 CFR Part 39**

**[Docket No. FAA–2014–0020; Directorate Identifier 2013–CE–039–AD; Amendment**  **39–17821; AD 2014–07–07]**

**RIN 2120–AA64**



### Airworthiness Directives; British **Aerospace (Operations) Limited Airplanes** 

**AGENCY**

### : Federal Aviation Administration (FAA), Department of Transportation (DOT).

**ACTION** 

### : Final rule.

**SUMMARY**

### : We are superseding an airworthiness directive (AD) 87–02–04 for British Aerospace (Operations) Limited Model HP.137 Jetstream MK.1, Jetstream Series 200, and Jetstream Series 3101 airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct
an unsafe condition on an aviation product. The MCAI describes the unsafe condition as cracking of the forward main landing gear yoke pintle resulting from corrosion pits leading to stress corrosion. We are issuing this AD to require actions to address the unsafe condition on these products.

**DATES** 

### : This AD is effective June 3, 2014.

The Director of the Federal Register approved the incorporation by reference of certain publications listed in the AD as of June 3, 2014.

**ADDRESSES** 

### : You may examine the AD
docket on the Internet at http:// www.regulations.gov by searching for and locating Docket No. FAA–2014– 0020; or in person at the Docket Management Facility, U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE., Washington, DC 20590.

For service information identified in this AD, contact BAE Systems (Operations) Ltd, Customer Information Department, Prestwick International Airport, Ayrshire, KA9 2RW, Scotland, United Kingdom; phone: +44 1292 675207, fax: +44 1292 675704; email: RApublications@baesystems.com;

Internet: http:// www.jetstreamcentral.com. You may view this referenced service information at the FAA, Small Airplane Directorate, 901 Locust, Kansas City, Missouri 64106. For information on the availability of this material at the FAA, call (816) 329–4148.


## 23898 Federal Register / Vol. 79, No. 82 / Tuesday, April 29, 2014 / Rules and Regulations

**FOR FURTHER INFORMATION CONTACT** 

### Taylor Martin, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329– 4138; fax: (816) 329–4090; email: taylor.martin@faa.gov.

**SUPPLEMENTARY INFORMATION** 

### :

Discussion

We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to add an AD that would apply to British Aerospace (Operations) Limited Model HP 137 Jetstream MK1, Jetstream Series 200, and Jetstream Series 3101 airplanes. The NPRM was published in the Federal Register on January 15, 2014 (79 FR 2593), and proposed to supersede AD 87–02–04, Amendment 39–5497 (51 FR 47211, December 31, 1986).

The NPRM (79 FR 2593, January 15, 2014) proposed to correct an unsafe condition for the specified products and was based on mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country. The MCAI states that:

Prompted by occurrences of the main landing gear (MLG) yoke pintle housing cracking, the United Kingdom Civil Aviation Authority (UK CAA) issued AD G–003–01–86 to require repetitive inspections to identify any crack in the yoke pintle housing on MLG fitted to Jetstream 3100 aeroplanes in accordance with BAE Systems (Operations) Ltd Service Bulletin (SB) 32–A–JA851226, and depending on findings, corrective action. After that AD was issued, an occurrence of Jetstream 3100 MLG failure was reported after landing. The subsequent investigation revealed stress corrosion cracking of the MLG yoke pintle housing as a root cause of the MLG failure. Furthermore, the investigation report recommended a review of the
effectiveness of UK CAA AD G–003–01–86 in identifying cracks in the yoke pintle housing on MLG fitted to Jetstream 3100 aeroplanes.

Degradation of the surface protection by
abrasion can occur when the forward face of the yoke pintle rotates against the pintle bearing, which introduces corrosion pits and, consequently, stress corrosion cracking.

This condition, if not detected and corrected, could lead to structural failure of the MLG, possibly resulting in loss of control of the aeroplane during take-off or landing

runs.

To provide protection of the affected area of the MLG assembly spigot housing, BAE Systems (Operations) Ltd issued SB 32– JM7862 to provide instructions for installation of a protective washer, fitted at the forward spigot on both, left hand (LH) and right hand (RH), MLG. Consequently, BAE Systems (Operations) Ltd issued SB 32– A–JA851226 at Revision 5 to provide additional accomplishment instructions for Non-destructive testing inspection (NDT) of MLG equipped with the protective washer installed in accordance with BAE Systems (Operations) Ltd SB 32–JM7862 and to
introduce reference to MLG manufacturer APPH Ltd SB 32–19 at Revision 4, providing instructions for re-protection of the yoke pintle.

For the reasons described above, this AD retains the requirements of AD G–003–01–86, which is superseded, and requires implementation of revised inspection requirements, and depending on findings,
corrective action. This AD introduces an optional modification, which constitutes terminating action for the inspections required by this AD.



### The MCAI can be found in the AD
docket on the Internet at: http:// www.regulations.gov/ #!documentDetail;D=FAA-2014-0020-

0002.

Comments

We gave the public the opportunity to participate in developing this AD. We
received no comments on the NPRM or
on the determination of the cost to the public.

Conclusion

We reviewed the relevant data and determined that air safety and the public interest require adopting the AD 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 (79 FR 2593, January 15, 2014) for correcting the unsafe condition; and

• Do not add any additional burden upon the public than was already proposed in the NPRM.

Costs of Compliance

We estimate that this AD will affect 44 products of U.S. registry. We also
estimate that it would take about 14 work-hours per product to comply with the inspection requirements of this AD.The average labor rate is $85 per workhour.

Based on these figures, we estimate the cost of this AD on U.S. operators to be $52,360, or $1,190 per product.

In addition, we estimate that any necessary follow-on actions would take about 10 work-hours and require parts costing $5,000, for a cost of $5,850 per product for repairs. We have no way of determining the number of products that may need these actions.

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.

Regulatory Findings

We determined that 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 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.

Examining the AD Docket

You may examine the AD docket on
the Internet at http:// www.regulations.gov by searching for and locating Docket No. FAA–2014– 0020; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains the NPRM, the regulatory evaluation, any comments received, and
other information. The street address for the Docket Office (telephone (800) 647– 5527) is in the **ADDRESSES** 

### section. Comments will be available in the AD docket shortly after receipt.

List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.

Adoption of the Amendment

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


## 23899 Federal Register / Vol. 79, No. 82 / Tuesday, April 29, 2014 / Rules and Regulations

**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 removing Amendment 39–5497 (51 FR 47211, December 31, 1986) and adding the following new AD:

2014–07–07 British Aerospace (Operations)
Limited: Amendment 39–17821; Docket No. FAA–2014–0020; Directorate Identifier 2013–CE–039–AD.

(a) Effective Date

This airworthiness directive (AD) becomes effective June 3, 2014.

(b) Affected ADs

This AD supersedes AD 87–02–04, Amendment 39–5497 (51 FR 47211, December 31, 1986.

(c) Applicability

This AD applies to British Aerospace (Operations) Limited Model HP.137 Jetstream Mk.1, Jetstream Series 200, and Jetstream Series 3101 airplanes, all serial numbers, certificated in any category.

(d) Subject

Air Transport Association of America (ATA) Code 32: Landing Gear.

(e) Reason

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 describes the unsafe condition as cracking of the forward main landing gear (MLG) yoke pintle that resulted from corrosion pits leading to stress corrosion. We are issuing this AD to prevent failure of the MLG, which could result in loss of control of the airplane during take-off or landing.

(f) Actions and Compliance

Unless already done, do the following actions specified in paragraphs (f)(1) through (f)(11) of this AD:

(1) For airplanes that were affected by AD 87–02–04, Amendment 39–5497 (51 FR 47211, December 31, 1986): At the next 1,200 MLG flight cycle repetitive inspection that would have been required by AD 87–02–04
or within the next 12 months after the last 1,200 MLG flight cycle repetitive inspection that would have been required by AD 87–02– 04, whichever occurs first, and repetitively thereafter at intervals not to exceed 1,200 MLG flight cycles or 12 months, whichever occurs first, do a nondestructive testing (NDT) inspection of each MLG assembly cylinder attachment spigot housing following the Accomplishment Instructions in APPH Ltd. Service Bulletin No. 32–19, Revision 4, dated April 3, 2013, and British Aerospace Jetstream Series 3100 & 3200 Service Bulletin 32–A–JA851226, Revision 5, dated April 30,

2013. (2) For airplanes that were not affected by AD 87–02–04, Amendment 39–5497 (51 FR 47211, December 31, 1986): Within the next 300 MLG flight cycles after June 3, 2014 (the effective date of this AD) or within the next 3 months after June 3, 2014 (the effective date of this AD) or at the next overhaul of the MLG after June 3, 2014 (the effective date of this AD), whichever occurs first, and repetitively thereafter at intervals not to exceed 1,200 MLG flight cycles or 12 months, whichever occurs first, do a NDT inspection of each MLG assembly cylinder attachment spigot housing following the Accomplishment Instructions in APPH Ltd. Service Bulletin No. 32–19, Revision 4, dated April 3, 2013, and British Aerospace Jetstream Series 3100 & 3200 Service Bulletin 32–A–JA851226, Revision 5, dated April 30,

2013.

(3) For all airplanes: Within 300 landings after a heavy or abnormal landing, conduct a NDT inspection of each MLG assembly cylinder attachment spigot following Accomplishment Instructions in APPH Ltd. Service Bulletin No. 32–19, Revision 4, dated April 3, 2013, and British Aerospace Jetstream Series 3100 & 3200 Service Bulletin 32–A–JA851226, Revision 5, dated April 30,

2013.

(4) For all airplanes: If any crack is found during any inspection required in paragraphs (f)(1), (f)(2), or (f)(3) of this AD, before further flight, take all necessary corrective actions following the Accomplishment Instructions in APPH Ltd. Service Bulletin No. 32–19, Revision 4, dated April 3, 2013, and British Aerospace Jetstream Series 3100 & 3200 Service Bulletin 32–A–JA851226, Revision 5, dated April 30, 2013.

(5) For all airplanes: Within 300 MLG flight cycles or 3 months, whichever occurs first after each NDT inspection required in paragraph (f)(1) or (f)(2) of this AD, as applicable, and repetitively thereafter at intervals not to exceed 300 MLG flight cycles or 3 months, whichever occurs first, do a visual inspection of each MLG following the Accomplishment Instructions in APPH Ltd. Service Bulletin No. 32–19, Revision 4, dated April 3, 2013, and British Aerospace Jetstream Series 3100 & 3200 Service Bulletin 32–A–JA851226, Revision 5, dated April 30,

2013.

(6) For all airplanes: If any discrepancy is found during any visual inspection required in paragraph (f)(5) of this AD, before further flight, take all necessary corrective actions following the Accomplishment Instructions in APPH Ltd. Service Bulletin No. 32–19, Revision 4, dated April 3, 2013, and British Aerospace Jetstream Series 3100 & 3200 Service Bulletin 32–A–JA851226, Revision 5, dated April 30, 2013.

(7) For all airplanes with a MLG incorporating a microswitch hole: Within the next 10,600 MLG flight cycles since new and repetitively thereafter at intervals not to exceed 1,200 MLG flight cycles, do a NDT inspection of each MLG microswitch hole following the Accomplishment Instructions in APPH Ltd. Service Bulletin No. 32–40, Revision 1, dated February 2003, and Part C, paragraph (2)(b) of British Aerospace Jetstream Series 3100 & 3200 Service Bulletin 32–A–JA851226, Revision 5, dated April 30,

2013. (8) For all airplanes: If any crack is found during any NDT inspection required in paragraph (f)(7) of this AD, before further flight, take all necessary corrective actions following the Accomplishment Instructions in APPH Ltd. Service Bulletin No. 32–40, Revision 1, dated February 2003, and British Aerospace Jetstream Series 3100 & 3200 Service Bulletin 32–A–JA851226, Revision 5, dated April 30, 2013.

(9) For all airplanes: Doing all necessary corrective actions required in paragraphs (f)(4), (f)(6), and (f)(8) of this AD does not constitute terminating action for the inspections required by this AD.

(10) For all airplanes: Modification of each MLG cylinder following Jetstream Service Bulletin 32–JA880340, original issue, dated January 6, 1989, constitutes terminating action for the inspections required by this AD
for that MLG.

(11) For all airplanes: The compliance times in paragraphs (f)(2), (f)(3), (f)(5), and (f)(7) of this AD are presented in flight cycles (landings). If the total flight cycles have not been kept, multiply the total number of airplane hours time-in-service (TIS) by 0.75 to calculate the cycles. For the purposes of
this AD:

(i) 100 hours TIS × .75 = 75 cycles; and (ii) 1,000 hours TIS × .75 = 750 cycles.

(g) Credit for Actions Done in Accordance
With Previous Service Information

This AD allows credit for the initial inspection required in paragraph (f)(7) of this AD if done before June 3, 2014 (the effective date of this AD) following APPH Ltd. Service Bulletin 32–40, at Initial Issue dated June 21,

1989.

(h) Other FAA AD Provisions

The following provisions also apply to this

AD:

(1) Alternative Methods of Compliance (AMOCs): The Manager, Standards Office, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures
found in 14 CFR 39.19. Send information to ATTN: Taylor Martin, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329–4138; fax: (816) 329– 4090; email: taylor.martin@faa.gov. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO.

(2) Airworthy Product: For any requirement
in this AD to obtain corrective actions from a manufacturer or other source, use these actions if they are FAA-approved. Corrective actions are considered FAA-approved if they are approved by the State of Design Authority (or their delegated agent). You are required to assure the product is airworthy before it
is returned to service.

(3) Reporting Requirements: For any reporting requirement in this AD, 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


## 23900 Federal Register / Vol. 79, No. 82 / Tuesday, April 29, 2014 / Rules and Regulations

collection of information displays a current
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 5 minutes per response, including the time for reviewing instructions, completing and reviewing the collection of information. All responses to this collection of information are mandatory. Comments concerning the accuracy of this burden and suggestions for reducing the burden should be directed to the FAA at: 800 Independence Ave. SW., Washington, DC 20591, Attn: Information Collection Clearance Officer,

AES–200.

(i) Related Information

Refer to MCAI European Aviation Safety Agency (EASA) AD No.: 2013–0208, dated September 10, 2013, for related information.
The MCAI can be found in the AD docket on
the Internet at: http://www.regulations.gov/ #!documentDetail;D=FAA-2014-0020-0002. For availability information about APPH Ltd. Service Bulletin 32–40, at Initial Issue dated June 21, 1989, which is not incorporated by reference, use the contact information in paragraphs (j)(4) and (j)(5).

(j) 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 the AD specifies otherwise.

(i) APPH Ltd. Service Bulletin No. 32–19, Revision 4, dated April 3, 2013.

(ii) APPH Ltd. Service Bulletin No. 32–40, Revision 1, dated February 2003.

(iii) British Aerospace Jetstream Series
3100 & 3200 Service Bulletin 32–A– JA851226, Revision 5, dated April 30, 2013.

(iv) Jetstream Service Bulletin 32– JA880340, original issue, dated January 6,

1989.

(3) For British Aerospace (Operations) Limited and Jetstream service information identified in this AD, contact BAE Systems (Operations) Ltd, Customer Information Department, Prestwick International Airport, Ayrshire, KA9 2RW, Scotland, United Kingdom; phone: +44 1292 675207, fax: +44 1292 675704; email: RApublications@ baesystems.com; Internet: http:// www.jetstreamcentral.com.

(4) For APPH Ltd. service information identified in this AD, contact APPH Ltd. Engineering Division, Unit 1, Pembroke Court, Chancellor Road, Manor Park, Runcorn, Cheshire, WA7 1TG, England; phone: +44 01928 532600; fax: +44 01928
579626; Internet: http://apph.com/contactus/customer-support/.

(5) You may view this service information at FAA, Small Airplane Directorate, 901 Locust, Kansas City, Missouri 64106. For information on the availability of this material at the FAA, call (816) 329–4148.

(6) 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/ibrlocations.html.

Issued in Kansas City, Missouri, on April

4, 2014. Earl Lawrence, Manager, Small Airplane Directorate, Aircraft Certification Service.

[FR Doc. 2014–09540 Filed 4–28–14; 8:45 am]

**BILLING CODE 4910–13–P**



### DEPARTMENT OF TRANSPORTATION

**Federal Aviation Administration**

**14 CFR Part 39**

**[Docket No. FAA–2014–0233; Directorate Identifier 2014–NM–053–AD; Amendment**  **39–17825; AD 2014–08–01]**

**RIN 2120–AA64**



### Airworthiness Directives; Airbus **Airplanes**

**AGENCY**

### : Federal Aviation Administration (FAA), Department of Transportation (DOT).

**ACTION** 

### : Final rule; request for

comments.

**SUMMARY**

### : We are superseding Airworthiness Directive (AD) 2014–03– 08 for all Airbus Model A318, A319, A320, and A321 series airplanes. AD 2014–03–08 required an inspection to determine the part number of the interconnecting struts installed on the wings, identifying the part number and
the serial number of the associated target and proximity sensor ifapplicable, and replacing or reidentifying the flap interconnecting strut if applicable. This new AD corrects a typographical error that affects the
definition of a serviceable interconnecting strut. This AD was prompted by a report that an investigation showed that when a certain combination of a target/ proximity sensor serial number is installed on a flap interconnecting strut, a ‘‘target FAR’’ signal cannot be detected
when it reaches the mechanical end stop of the interconnecting strut. We are issuing this AD to detect and correct a latent failure of the flap down drive disconnection due to an already-failed interconnecting strut sensor, which could result in asymmetric flap panel movement and consequent loss of control of the airplane.

**DATES** 

### : This AD becomes effective May

14, 2014.

The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of March 26, 2014 (79 FR 9398, February 19, 2014).

We must receive comments on this AD by June 13, 2014.

**ADDRESSES** 

### : You may send comments by any of the following methods:

• Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.

• Fax: 202–493–2251.

• Mail: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE., Washington, DC 20590.

• Hand Delivery: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE., Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays.

For service information identified in this AD, contact Airbus, Airworthiness Office—EAS, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France; telephone +33 5 61 93 36 96; fax +33 5 61 93 44 51; email account.airwortheas@airbus.com; Internet http://
www.airbus.com. You may view this
referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425–227–

1221.

Examining the AD Docket

You may examine the AD docket on
the Internet at http:// www.regulations.gov by searching for and locating Docket No. FAA–2014– 0233; or in person at the Docket Operations office between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this AD, the regulatory evaluation, any comments received, and
other information. The street address for the Docket Operations office (telephone 800–647–5527) is in the **ADDRESSES** 

### section. Comments will be available in the AD docket shortly after receipt.

**FOR FURTHER INFORMATION CONTACT**

### : Sanjay Ralhan, Aerospace Engineer, International Branch, ANM 116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057–3356; telephone (425) 227–1405; fax (425) 227–1149.

**SUPPLEMENTARY INFORMATION** 

### :

Discussion

On January 22, 2014, we issued AD 2014–03–08, Amendment 39–17745 (79 FR 9398, February 19, 2014). AD 2014– 03–08 applied to all Airbus Model A318, A319, A320, and A321 series