51946 Federal Register / Vol. 77, No. 167 / Tuesday, August 28, 2012 / Proposed Rules 

5. The surfaces of the galley 

surrounding the cooktop, which would 

be exposed to a fire on the cooktop 

surface or in cookware on the cooktop, 

must be constructed of materials that 

comply with the flammability 

requirements of 14 CFR part 25, 

appendix F, part III. This requirement is 

in addition to the flammability 

requirements typically required of the 

materials in these galley surfaces. 

During the selection of these materials, 

consideration must also be given to 

ensure that the flammability 

characteristics of the materials will not 

be adversely affected by the use of 

cleaning agents and utensils used to 

remove cooking stains. 

6. The cooktop ventilation system 

ducting must be protected by a flame 

arrestor. In addition, procedures and 

time intervals must be established and 

included in the instructions for 

continued airworthiness to inspect and 

clean or replace the ventilation system 

to prevent a fire hazard from the 

accumulation of flammable oils. [Note: 

The applicant may find additional 

useful information in the Society of 

Automotive Engineers, Aerospace 

Recommended Practice 85, Rev. E, 

entitled, ‘‘Air Conditioning Systems for 

Subsonic Airplanes,’’ dated August 1, 

1991.] 

7. Means must be provided to contain 

spilled foods or fluids in a manner that 

prevents the creation of a slipping 

hazard to occupants, and that will not 

lead to the loss of structural strength 

due to corrosion. 

8. Cooktop installations must provide 

adequate space for the user to 

immediately escape a hazardous 

cooktop condition. 

9. A means to shut off power to the 

cooktop must be provided at the galley 

containing the cooktop and in the 

cockpit. If additional switches are 

introduced in the cockpit, revisions to 

smoke or fire emergency procedures of 

the airplane flight manual (AFM) will be 

required. 

10. Cooktop installations must 

incorporate a timer that will switch the 

heating elements off after a maximum 

time of 20 minutes. 

11. Instructions for the cabin crew to 

ensure safe operation of the cooktop lid 

and timer must be provided. 

12. Evidence must be provided that 

with the cooktop lid closed, the 

temperature set on ‘‘high,’’ and the 

timer at maximum, the cooktop will 

maintain safe operation and will not 

create a hazardous condition even with 

cooking oil in the cooktop. 

Issued in Renton, Washington, on August 

22, 2012. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2012–21100 Filed 8–27–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0861; Directorate 

Identifier 2012–NM–074–AD] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc. Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for certain 

Bombardier, Inc. Model DHC–8–102, 

–103, –106, –201, –202, –301, –311, and 

–315 airplanes. This proposed AD was 

prompted by reports of the loss of the 

fixed frequency system, leading to the 

loss of power to the left and right buses 

and all systems serviced by these buses. 

This proposed AD would require 

modification of the wiring and changes 

to existing airworthiness limitations. We 

are proposing this AD to prevent loss of 

the fixed frequency system, which could 

lead to loss of a number of the pilot’s 

and co-pilot’s flight instruments, in 

addition to other avionics systems. 

DATES: We must receive comments on 

this proposed AD by October 12, 2012. 

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 proposed AD, contact Bombardier, 

Inc., Q-Series Technical Help Desk, 123 

Garratt Boulevard, Toronto, Ontario 

M3K 1Y5, Canada; telephone 416–375– 

4000; fax 416–375–4539; email 

thd.qseries@aero.bombardier.com; 

Internet http://www.bombardier.com. 

You may review copies of the 

referenced service information at the 

FAA, Transport Airplane Directorate, 

1601 Lind Avenue SW., Renton, 

Washington. 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; 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 proposed 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: 

Assata Dessaline, Aerospace Engineer, 

Avionics and Flight Test Branch, ANE– 

172, FAA, New York Aircraft 

Certification Office, 1600 Stewart 

Avenue, Suite 410, Westbury, New York 

11590; telephone (516) 228–7301; fax 

(516) 794–5531. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments about 

this proposed AD. Send your comments 

to an address listed under the 

ADDRESSES section. Include ‘‘Docket No. 

FAA–2012–0861; Directorate Identifier 

2012–NM–074–AD’’ at the beginning of 

your comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of this proposed AD. We will 

consider all comments received by the 

closing date and may amend this 

proposed AD based on those comments. 

We will post all comments we 

receive, without change, to http:// 

www.regulations.gov, including any 

personal information you provide. We 

will also post a report summarizing each 

substantive verbal contact we receive 

about this proposed AD. 

Discussion 

The Transport Canada Civil Aviation 

(TCCA), which is the aviation authority 

for Canada, has issued Canadian 

Airworthiness Directive CF–2012–09, 

dated February 15, 2012 (referred to 

after this as ‘‘the MCAI’’), to correct an 

unsafe condition for the specified 

products. The MCAI states: 


srobinson on DSK4SPTVN1PROD with PROPOSALS
Federal Register / Vol. 77, No. 167 / Tuesday, August 28, 2012 / Proposed Rules 51947 

There have been several reported 

occurrences of the loss of the 400Hz [hertz] 

Fixed Frequency System, leading to the loss 

of power to the Left 115VAC [alternating 

current] bus, the Right 115VAC bus, the Left 

26VAC bus, the Right 26VAC bus and all 

systems serviced by these four electrical 

buses. The loss of the 400Hz Fixed 

Frequency System has been attributed to a 

failure of one or two static inverters, which 

resulted in the loss of the remaining 

inverters. The loss of systems serviced by the 

four fixed frequency electrical buses creates 

an unsafe condition due to the loss of a 

number of the pilot’s and co-pilot’s flight 

instruments, in addition to the other avionics 

systems. 

This [Canadian] Airworthiness Directive 

(AD) mandates the wiring modification to 

untie the 400Hz inverters and additional 

Airworthiness Limitation tasks introduced as 

a result of this modification. 

You may obtain further information by 

examining the MCAI in the AD docket. 

Relevant Service Information 

Bombardier has issued the following 

service information: 

• Bombardier Service Bulletin 8–24– 

87, Revision B, dated April 3, 2012; 

• de Havilland Dash 8 Series 100 

Temporary Revision AWL–117, dated 

April 8, 2011, to Section AWL—Systems 

Maintenance, of Part 2, Airworthiness 

Limitations, of the Bombardier Dash 8 

Series 100 Maintenance Program 

Manual, PSM 1–8–7. 

• de Havilland Dash 8 Series 200 

Temporary Revision AWL 2–48, dated 

April 8, 2011, to Section AWL—Systems 

Maintenance, of Part 2, Airworthiness 

Limitations, of the Bombardier Dash 8 

Series 200 Maintenance Program 

Manual, PSM 1–82–7; and 

• de Havilland Dash 8 Series 300 

Temporary Revision AWL 3–118, dated 

April 8, 2011, to Section AWL—Systems 

Maintenance, of Part 2, Airworthiness 

Limitations, of the Bombardier Dash 8 

Series 300 Maintenance Program 

Manual, PSM 1–83–7. 

The actions described in this service 

information are intended to correct the 

unsafe condition identified in the 

MCAI. 

FAA’s Determination and Requirements 

of This Proposed AD 

This product has been approved by 

the aviation authority of another 

country, and is approved for operation 

in the United States. Pursuant to our 

bilateral agreement with the State of 

Design Authority, we have been notified 

of the unsafe condition described in the 

MCAI and service information 

referenced above. We are proposing this 

AD because we evaluated all pertinent 

information and determined an unsafe 

condition exists and is likely to exist or 

develop on other products of the same 

type design. 

Costs of Compliance 

Based on the service information, we 

estimate that this proposed AD would 

affect about 94 products of U.S. registry. 

We also estimate that it would take 

about 9 work-hours per product to 

comply with the basic requirements of 

this proposed AD. The average labor 

rate is $85 per work-hour. Based on 

these figures, we estimate the cost of the 

proposed AD on U.S. operators to be 

$71,910, or $765 per product. 

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 proposed AD 

would not have federalism implications 

under Executive Order 13132. This 

proposed AD would 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 proposed regulation: 

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. 

We prepared a regulatory evaluation 

of the estimated costs to comply with 

this proposed AD and placed it in the 

AD docket. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

The Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA proposes to amend 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 AD: 

Bombardier, Inc.: Docket No. FAA–2012– 

0861; Directorate Identifier 2012–NM– 

074–AD. 

(a) Comments Due Date 

We must receive comments by October 12, 

2012. 

(b) Affected ADs 

None. 

(c) Applicability 

(1) This AD applies to Bombardier, Inc. 

Model DHC–8–102, –103, –106, –201, –202, 

–301, –311, and –315 airplanes, certificated 

in any category, serial numbers 002 through 

672 inclusive. 

(2) This AD requires revisions to certain 

operator maintenance documents to include 

new actions (e.g., inspections). Compliance 

with these inspections is required by 14 CFR 

91.403(c). For airplanes that have been 

previously modified, altered, or repaired in 

the areas addressed by these actions, the 

operator may not be able to accomplish the 

actions described in the revisions. In this 

situation, to comply with 14 CFR 91.403(c), 

the operator must request approval for an 

alternative method of compliance according 

to paragraph (k)(1) of this AD. The request 

should include a description of changes to 

the required inspections that will ensure the 

continued operational safety of the airplane. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 24; Electrical Power. 

(e) Reason 

This AD was prompted by reports of the 

loss of the fixed frequency system, leading to 

the loss of power to the left and right buses 

and all systems serviced by these buses. We 

are issuing this AD to prevent loss of the 

fixed frequency system, which could lead to 

loss of a number of the pilot’s and co-pilot’s 

flight instruments, in addition to other 

avionics systems. 


srobinson on DSK4SPTVN1PROD with PROPOSALS
51948 Federal Register / Vol. 77, No. 167 / Tuesday, August 28, 2012 / Proposed Rules 

(f) Compliance 

You are responsible for having the actions 

required by this AD performed within the 

compliance times specified, unless the 

actions have already been done. 

(g) Wiring Modifications 

Within 6,000 flight hours or 36 months 

after the effective date of this AD, whichever 

occurs first: Incorporate the wiring 

modifications specified in and in accordance 

with the Accomplishment Instructions of 

Bombardier Service Bulletin 8–24–87, 

Revision B, dated April 3, 2012. 

(h) Airplane Maintenance Program Revision 

Within 30 days after the effective date of 

this AD: Revise the airplane maintenance 

program by incorporating Task 2420/13, 

Operational Check of Relays K4, K5, K6, and 

K7 (Post Modsum 8Q101917), in the 

applicable temporary revision specified in 

paragraph (h)(1), (h)(2), or (h)(3) of this AD. 

The initial compliance time for Task 2420/13 

is within 18,000 flight hours after 

accomplishing the actions specified in 

paragraph (g) of this AD, or 30 days after the 

effective date of this AD, whichever occurs 

later. 

(1) For Model DHC–8–102, –103, and –106 

airplanes: de Havilland Dash 8 Series 100 

Temporary Revision AWL–117, dated April 

8, 2011, to Section AWL—Systems 

Maintenance, of Part 2, Airworthiness 

Limitations, of the Bombardier Dash 8 Series 

100 Maintenance Program Manual, PSM 1–8– 

7. 

(2) For Model DHC–8–201 and –202 

airplanes: de Havilland Dash 8 Series 200 

Temporary Revision AWL 2–48, dated April 

8, 2011, to Section AWL—Systems 

Maintenance, of Part 2, Airworthiness 

Limitations, of the Bombardier Dash 8 Series 

200 Maintenance Program Manual, PSM 1– 

82–7. 

(3) For Model DHC–8–301, –311, and –315 

airplanes: de Havilland Dash 8 Series 300 

Temporary Revision AWL 3–118, dated April 

8, 2011, to Section AWL—Systems 

Maintenance, of Part 2, Airworthiness 

Limitations, of the Bombardier Dash 8 Series 

300 Maintenance Program Manual, PSM 1– 

83–7. 

(i) No Alternative Actions or Intervals 

After accomplishing the revision required 

by paragraph (h) of this AD, no alternative 

actions (e.g., inspections) or intervals may be 

used, unless the actions and intervals are 

approved as an AMOC in accordance with 

the procedures specified in paragraph (k)(1) 

of this AD. 

(j) Credit for Previous Actions 

This paragraph provides credit for the 

actions required by paragraph (g) of this AD, 

if those actions were performed before the 

effective date of this AD using Bombardier 

Service Bulletin 8–24–87, dated May 26, 

2011; or Bombardier Service Bulletin 8–24– 

87, Revision A, dated October 5, 2011. 

(k) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, New York Aircraft 

Certification Office (ACO), ANE–170, 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 ACO, send it to ATTN: 

Program Manager, Continuing Operational 

Safety, FAA, New York ACO, 1600 Stewart 

Avenue, Suite 410, Westbury, New York 

11590; telephone 516–228–7300; fax 516– 

794–5531. 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. The AMOC 

approval letter must specifically reference 

this AD. 

(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. 

(l) Related Information 

(1) Refer to MCAI Canadian Airworthiness 

Directive CF–2012–09, dated February 15, 

2012, and the service information specified 

in paragraphs (l)(1)(i) through (l)(1)(iv) of this 

AD, for related information. 

(i) Bombardier Service Bulletin 8–24–87, 

Revision B, dated April 3, 2012. 

(ii) de Havilland Dash 8 Series 100 

Temporary Revision AWL–117, dated April 

8, 2011, to Section AWL—Systems 

Maintenance, of Part 2, Airworthiness 

Limitations, of the Bombardier Dash 8 Series 

100 Maintenance Program Manual, PSM 1–8– 

7. 

(iii) de Havilland Dash 8 Series 200 

Temporary Revision AWL 2–48, dated April 

8, 2011, to Section AWL—Systems 

Maintenance, of Part 2, Airworthiness 

Limitations, of the Bombardier Dash 8 Series 

200 Maintenance Program Manual, PSM 1– 

82–7. 

(iv) de Havilland Dash 8 Series 300 

Temporary Revision AWL 3–118, dated April 

8, 2011, to Section AWL—Systems 

Maintenance, of Part 2, Airworthiness 

Limitations, of the Bombardier Dash 8 Series 

300 Maintenance Program Manual, PSM 1– 

83–7. 

(2) For service information identified in 

this AD, contact Bombardier, Inc., Q-Series 

Technical Help Desk, 123 Garratt Boulevard, 

Toronto, Ontario M3K 1Y5, Canada; 

telephone 416–375–4000; fax 416–375–4539; 

email thd.qseries@aero.bombardier.com; 

Internet http://www.bombardier.com. You 

may review copies of the referenced service 

information at the FAA, Transport Airplane 

Directorate, 1601 Lind Avenue SW., Renton, 

Washington. For information on the 

availability of this material at the FAA, call 

425–227–1221. 

Issued in Renton, Washington, on August 

22, 2012. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2012–21102 Filed 8–27–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Chapter 1 

[Docket No. FAA–2012–0754] 

Airport Improvement Program (AIP): 

Policy Regarding Access to Airports 

From Residential Property; Correction 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Proposed policy; 

implementation of Section 136; 

opportunity to comment; correction and 

extension of time to comment. 

SUMMARY: The FAA is correcting an 

inadvertent omission in the Addresses 

paragraph in the Proposed Policy 

Regarding Access to Airports From 

Residential Property that was published 

in the Federal Register on July 30, 2012. 

The FAA is also extending the comment 

period to September 14, 2012. 

DATES: The comment period for the 

proposed policy document published 

July 30, 2012 (77 FR 44515), is extended 

to September 14, 2012. 

FOR FURTHER INFORMATION CONTACT: 

Randall S. Fiertz, telephone: (202) 267– 

3085; facsimile: (202) 267–5257; email: 

randall.fiertz@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Need for Correction 

On July 30, 2012, the Federal Aviation 

Administration published a Notice of 

Proposed Policy in the Federal Register 

at 77 FR 44515 proposing an FAA 

policy, based on Federal law, 

concerning through-the-fence access to a 

federally obligated airport from an 

adjacent or nearby property, when that 

property is used as a residence. The 

Notice also proposed to limit 

application of the FAA’s previously 

published interim policy (76 FR 15028; 

March 18, 2011) to commercial service 

airports that certified existing 

residential through-the-fence access 

agreements and rescind applicability of 

this interim policy with regard to 

certain general aviation airports 

consistent with section 136 of Public 

Law 112–95. In addition, that notice 

described how the FAA will interpret 

provisions of the law pertaining to 


srobinson on DSK4SPTVN1PROD with PROPOSALS