### 23690 Federal Register / Vol. 78, No. 77 / Monday, April 22, 2013 / Proposed Rules

**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 (AD): Bell Helicopter Textron Canada Inc (BHT): Docket No. FAA–2013–0349; Directorate Identifier 2012–SW–058–AD.
(a) Applicability

This AD applies to the following helicopters, certificated in any category:

(1) BHT Model 206A and 206B helicopters, all serial numbers (S/N) except S/Ns 1, 2, and 3, with an engine auto-relight kit control box assembly (control box assembly) part number (P/N) 206–375–017–101 installed; and

(2) BHT Model 206L helicopters, S/N 45001 through 45153 and 46601 through 46617, with a control box assembly P/N 206– 375–017–103 installed.
(b) Unsafe Condition

This AD defines the unsafe condition as an inoperative control box assembly. Thiscondition could result in a disabled autorelight system, failure of the engine to relight after a flame-out, increased pilot workload during a power loss emergency, and subsequent loss of control of the helicopter.
(c) Reserved
(d) Compliance

You are responsible for performing each action required by this AD within the specified compliance time unless it has already been accomplished prior to that time.
(e) Required Actions

Within 4 months, replace the control box assembly:

(1) For Model 206A and 206B helicopters, replace control box assembly P/N 206–375– 017–101 with a control box assembly P/N
206–375–017–105.

(2) For Model 206L helicopters, replace control box assembly P/N 206–375–017–103 with a control box assembly P/N 206–375–
017–107. (f) Alternative Methods of Compliance (AMOCs)

(1) The Manager, Safety Management Group, FAA, may approve AMOCs for this AD. Send your proposal to: Rao Edupuganti, Aviation Safety Engineer, Regulations and Policy Group, Rotorcraft Directorate, FAA, 2601 Meacham Blvd., Fort Worth, Texas 76137; telephone (817) 222–5110; email rao.edupuganti@faa.gov.

(2) For operations conducted under a 14 CFR part 119 operating certificate or under 14 CFR part 91, subpart K, we suggest that you notify your principal inspector, or lacking a principal inspector, the manager of the local flight standards district office or certificate holding district office before operating any aircraft complying with this AD through an AMOC. (g) Additional Information (1) BHT Alert Service Bulletin (ASB) No. 206–11–127 for Model 206A and 206B helicopters and ASB No. 206L–11–167 for Model 206L helicopters, both dated May 2, 2011, which are not incorporated by reference, contain additional information about the subject of this AD. For service information identified in this AD, contact Bell Helicopter Textron Canada Limited, 12,800 Rue de l’Avenir, Mirabel, Quebec J7J1R4; telephone (450) 437–2862 or (800) 363–8023; fax (450) 433–0272; or at http:// www.bellcustomer.com/files/. You may review a copy of the service information at the FAA, Office of the Regional Counsel, Southwest Region, 2601 Meacham Blvd., Room 663, Fort Worth, Texas 76137.

(2) The subject of this AD is addressed in Transport Canada AD CF–2012–19, dated June 12, 2012. (h) Subject

Joint Aircraft Service Component (JASC) Code: 7410: Ignition Power Supply.

Issued in Fort Worth, Texas, on April 11,
2013. Lance T. Gant, Acting Directorate Manager, Rotorcraft Directorate, Aircraft Certification Service.

[FR Doc. 2013–09415 Filed 4–19–13; 8:45 am]

**BILLING CODE 4910–13–P**

**DEPARTMENT OF TRANSPORTATION**

**Federal Aviation Administration**

**14 CFR Part 39**

**[Docket No. FAA–2011–0034; Directorate Identifier 2010–NM–021–AD]** 

**RIN 2120–AA64**

**Airworthiness Directives; The Boeing Company** 

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

**ACTION :**  Proposed rule; withdrawal.

**SUMMARY :**  The FAA withdraws a notice of proposed rulemaking (NPRM) that proposed a new airworthiness directive (AD) for certain The Boeing Company Model 777–200 series airplanes. The proposed AD would have required installing a new circuit breaker, relays, and wiring to allow the flightcrew to turn off electrical power to the in-flight entertainment (IFE) systems and other non-essential electrical systems through a switch in the flight compartment, and doing other specified actions. This proposed AD would also have required installing a new cabin system control panel (CSCP); installing a new cabin management system (CMS) configuration database; and installing new operational program software (OPS) for the CSCP, zone management unit (ZMU), passenger address controller, cabin interphone controller, cabin area control panel (CACP), speaker drive module, overhead electronics units, and seat electronics unit. Since the proposed AD was issued, we have received new data that indicates the unsafe condition would not be adequately addressed by the proposed action. Subsequently, we are considering issuing new rulemaking that positively addresses the unsafe condition identified in the NPRM and eliminates the need for the actions proposed in the NPRM. Accordingly, the proposed AD is withdrawn.

**ADDRESSES :**  You may examine the AD docket on the Internet at http:// www.regulations.gov; 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 this AD action, the regulatory evaluation, any comments received, and other information. The street address for the Docket Office (phone: 800–647–5527) is the Document 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 FURTHER INFORMATION CONTACT :**  Ray Mei, Aerospace Engineer, Systems and Equipment Branch, ANM–130S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue SW., Renton, WA 98057–3356; phone: 425–917–6467; fax: 425–917–6590; email: raymont.mei@faa.gov

. **SUPPLEMENTARY INFORMATION :** 

Discussion

We proposed to amend part 39 of the Federal Aviation Regulations (14 CFR part 39) with a notice of proposed rulemaking (NPRM) for a new AD for certain Model 777–200 series airplanes. That NPRM published in the Federal Register on February 1, 2011 (76 FR 5505). The NPRM would have required installing a new circuit breaker, relays, and wiring to allow the flightcrew to turn off electrical power to the IFE systems and other non-essential electrical systems through a switch in the flight compartment, and doing other specified actions. The actions included removing the CSCP core partition software, the CACP OPS, the ZMU OPS, and the cabin system management unit (CSMU) OPS; installing OPS for the CSCP, CACP, ZMU, and CSMU; and installing the new configuration database (CDB). That NPRM would also have required installing a new CSCP; installing a new CMS CDB, installing passenger address controller, cabin


### 23691 Federal Register / Vol. 78, No. 77 / Monday, April 22, 2013 / Proposed Rules

interphone controller, speaker drive module, overhead electronics units, and seat electronics unit. The NPRM resulted from an IFE systems review. The proposed actions were intended to ensure that the flightcrew is able to turn off electrical power to the IFE system and other non-essential electrical systems through a switch in the flight compartment in the event of smoke or flames. The flightcrew’s inability to turn off electrical power to the IFE system and other non-essential electrical systems in the event of smoke or flames could result in the inability to control smoke or flames in the airplane flightdeck or passenger cabin during a nonnormal or emergency situation.
Actions Since NPRM (76 FR 5505, February 1, 2011) Was Issued

Since we issued the NPRM (76 FR 5505, February 1, 2011), we have received new data that indicates the unsafe condition would not be adequately addressed by the proposed action. Subsequently, we are considering issuing new rulemaking that positively addresses the unsafe condition identified in the NPRM and eliminates the need for the actions proposed in the NPRM.

FAA’s Conclusions

Upon further consideration, we have determined that the unsafe condition still exists, however, we intend to address it with new AD rulemaking. Accordingly, the NPRM (76 FR 5505, February 1, 2011) is withdrawn.

Withdrawal of the NPRM (76 FR 5505, February 1, 2011) does not preclude the FAA from issuing another related action or commit the FAA to any course of action in the future. Regulatory Impact

Since this action only withdraws an NPRM (76 FR 5505, February 1, 2011), it is neither a proposed nor a final rule and therefore is not covered under Executive Order 12866, the Regulatory Flexibility Act, or DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979). List of Subjects in 14 CFR Part 39

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

The Withdrawal

Accordingly, we withdraw the NPRM, Docket No. FAA–2011–0034, Directorate Identifier 2010–NM–021–AD, which published in the Federal Register on February 1, 2011 (76 FR 5505). Issued in Renton, Washington, on February 1, 2013. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service.
[FR Doc. 2013–09422 Filed 4–19–13; 8:45 am]

**BILLING CODE 4910–13–P**

**DEPARTMENT OF TRANSPORTATION**

**Federal Aviation Administration**

**14 CFR Part 39**

**[Docket No. FAA–2011–0033; Directorate Identifier 2010–NM–019–AD]** 

**RIN 2120–AA64**

**Airworthiness Directives; the Boeing Company** 

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

**ACTION :**  Proposed rule; withdrawal.

**SUMMARY :**  The FAA withdraws a notice of proposed rulemaking (NPRM) that proposed a new airworthiness directive (AD) for certain The Boeing Company Model 777–200 series airplanes. The proposed AD would have required installing a new circuit breaker, relays, and wiring to allow the flightcrew to turn off electrical power to the in-flight entertainment (IFE) systems and other non-essential electrical systems through a switch in the flight compartment, and doing other specified actions. That NPRM would also have required changing the wiring at the cabin management system in the purser station. Since the proposed AD was issued, we have received new data that indicates the unsafe condition would not be adequately addressed by the proposed action. Subsequently, we are considering issuing new rulemaking that positively addresses the unsafe condition identified in the NPRM and eliminates the need for the actions proposed in the NPRM. Accordingly, the proposed AD is withdrawn.

**ADDRESSES :**  You may examine the AD docket on the Internet at http:// www.regulations.gov; 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 this AD action, the regulatory evaluation, any comments received, and other information. The street address for the Docket Office (phone: 800–647–5527) is the Document 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 FURTHER INFORMATION CONTACT :**  Ray Mei, Aerospace Engineer, Systems and Equipment Branch, ANM–130S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue SW., Renton, WA 98057–3356; phone: 425–917–6467; fax: 425–917–6590; email: raymont.mei@faa.gov

.
**SUPPLEMENTARY INFORMATION :** 

Discussion

We proposed to amend part 39 of the Federal Aviation Regulations (14 CFR part 39) with a notice of proposed rulemaking (NPRM) for a new AD for certain Model 777–200 series airplanes. That NPRM published in the Federal Register on February 1, 2011 (76 FR 5503). The NPRM would have required installing a new circuit breaker, relays, and wiring to allow the flightcrew to turn off electrical power to the IFE systems and other non-essential electrical systems through a switch in the flight compartment, and doing other specified actions. The actions included replacing the cabin area control panels; changing the wiring; modifying the purser station or the A–4 galley, as applicable; installing new cabin system management unit, cabin area control panel, overhead electronics unit, and zone management units operational software, as applicable; and making a change to the cabin services system (CSS) configuration database and installing the new database in the CSS components. That NPRM would also have required changing the wiring at the cabin management system in the purser station. The NPRM resulted from an IFE systems review. The proposed actions were intended to ensure that the flightcrew is able to turn off electricalpower to the IFE system and other nonessential electrical systems through a switch in the flight compartment in the event of smoke or flames. The flightcrew’s inability to turn off electrical power to the IFE system and other non-essential electrical systems in the event of smoke or flames could result in the inability to control smoke or flames in the airplane flight deck or passenger cabin during a non-normal or emergency situation.
Actions Since NPRM (76 FR 5503, February 1, 2011) Was Issued

Since we issued the NPRM (76 FR 5503, February 1, 2011), we have received new data that indicates the unsafe condition would not be adequately addressed by the proposed action. Subsequently, we are considering issuing new rulemaking that positively addresses the unsafe condition identified in the NPRM and