60060 Federal Register / Vol. 77, No. 191 / Tuesday, October 2, 2012 / Proposed Rules 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–1003; Directorate 

Identifier 2012–NM–064–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–8–400 

series airplanes. This proposed AD was 

prompted by reports of engine fire/ 

overheat detector assemblies advance 

pneumatic detectors (APDs) failing to 

reset after activation due to permanent 

deformation of the detector switch 

diaphragm after being exposed to high 

temperatures. This proposed AD would 

require replacing all three APDs with 

new detector assemblies. We are 

proposing this AD to prevent a 

continued engine fire indication in the 

cockpit after the actual fire has been 

extinguished, which is misleading and 

may influence the pilot to conduct a 

potentially hazardous ‘‘off-airport’’ 

landing. 

DATES: We must receive comments on 

this proposed AD by November 16, 

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, 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; 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: 

Mazdak Hobbi, Aerospace Engineer, 

Propulsion and Services Branch, ANE– 

173, FAA, New York Aircraft 

Certification Office, 1600 Stewart 

Avenue, Suite 410, Westbury, NY 

11590; telephone 516–228–7330; 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–2012–1003; Directorate Identifier 

2012–NM–064–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 

Transport Canada Civil Aviation 

(TCCA), which is the aviation authority 

for Canada, has issued Canadian 

Airworthiness Directive CF–2012–07, 

dated January 27, 2012 (referred to after 

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

condition for the specified products. 

The MCAI states: 

There have been engine fires on DHC–8 

Series 400 aeroplanes, where the ‘‘ENGINE 

FIRE, CHECK FIRE DETECT’’ warning and 

‘‘FUEL OFF’’ handle lights failed to reset and 

remained illuminated after the fire was 

extinguished. An investigation has revealed 

that the existing engine fire/overheat detector 

assemblies ‘‘Advance Pneumatic Detectors 

(APD)’’ may fail to reset after activation due 

to permanent deformation of the detector 

switch diaphragm after being exposed to high 

temperatures. 

This abnormal condition of a continued 

engine fire indication in the cockpit, after the 

actual fire has been extinguished, is 

misleading and may influence the pilot’s 

decision to conduct a potentially hazardous 

‘‘off-airport’’ landing, which is considered an 

unsafe condition that warrants mitigating 

action. 

To mitigate this potentially hazardous 

condition, Bombardier has issued multiple 

service bulletins (SBs) [Bombardier Service 

Bulletins 84–26–08, Revision A, dated May 

12, 2011; 84–26–09, Revision A, dated May 

12, 2011; and 84–26–12, Revision A, dated 

December 13, 2011] to replace all three 

affected APDs with new detector assemblies 

that are not susceptible to the subject 

diaphragm deformation when exposed to 

excessive heat. * * * 

You may obtain further information 

by examining the MCAI in the AD 

docket. 

Relevant Service Information 

Bombardier, Inc. has issued Service 

Bulletins 84–26–08, Revision A, dated 

May 12, 2011; 84–26–09, Revision A, 

dated May 12, 2011; and 84–26–12, 

Revision A, dated December 13, 2011. 

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 84 products of U.S. registry. 

We also estimate that it would take 

about 63 work-hours per product to 

comply with the basic requirements of 

this proposed AD. The average labor 

rate is $85 per work-hour. Required 

parts would cost about $5,700 per 

product. Where the service information 

lists required parts costs that are 

covered under warranty, we have 

assumed that there will be no charge for 


wreier-aviles on DSK5TPTVN1PROD with PROPOSALS
Federal Register / Vol. 77, No. 191 / Tuesday, October 2, 2012 / Proposed Rules 60061 

these parts. As we do not control 

warranty coverage for affected parties, 

some parties may incur costs higher 

than estimated here. Based on these 

figures, we estimate the cost of the 

proposed AD on U.S. operators to be 

$928,620, or $11,055 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– 

1003; Directorate Identifier 2012–NM– 

064–AD. 

(a) Comments Due Date 

We must receive comments by November 

16, 2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Bombardier, Inc. Model 

DHC–8–400, –401, and –402 airplanes; 

certificated in any category; serial numbers 

4001 through 4373 inclusive. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 26, Fire protection. 

(e) Reason 

This AD was prompted by reports of 

engine fire/overheat detector assemblies 

advance pneumatic detectors (APDs) failing 

to reset after activation due to permanent 

deformation of the detector switch 

diaphragm after being exposed to high 

temperatures. We are issuing this AD to 

prevent a continued engine fire indication in 

the cockpit after the actual fire has been 

extinguished, which is misleading and may 

influence the pilot to conduct a potentially 

hazardous ‘‘off-airport’’ landing. 

(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) Installation 

Within 6,000 flight hours or 30 months 

after the effective date of this AD, whichever 

occurs first, replace the APDs as specified in 

paragraphs (g)(1), (g)(2), and (g)(3) of this AD. 

(1) For the nacelle of the engine primary 

zone: Remove any APD having part number 

(P/N) 10–1098 and install a new APD having 

P/N 10–1098–01, in accordance with the 

Accomplishment Instructions of Bombardier 

Service Bulletin 84–26–08, Revision A, dated 

May 12, 2011. 

(2) For the nacelle of the landing gear 

primary zone: Remove any APD having P/N 

10–1097 or 10–1097–01 and install a new 

APD having P/N 10–1097–02, in accordance 

with the Accomplishment Instructions of 

Bombardier Service Bulletin 84–26–09, 

Revision A, dated May 12, 2011. 

(3) For the propeller engine controller: 

Remove any APD having P/N 10–1096, 10– 

1096–01, or 10–1096–02 (serial number is all 

numeric characters), and install a new APD 

having P/N 10–1096–02 (serial number is 

three alpha and four numeric characters), in 

accordance with the Accomplishment 

Instructions of Bombardier Service Bulletin 

84–26–12, Revision A, dated December 13, 

2011. 

(h) Credit for Previous Actions 

This paragraph provides credit for actions 

required by paragraph (g) of this AD, if those 

actions were performed before the effective 

date of this AD using the service information 

specified in paragraph (h)(1), (h)(2), or (h)(3) 

of this AD. 

(1) Bombardier Service Bulletin 84–26–08, 

dated March 11, 2011. 

(2) Bombardier Service Bulletin 84–26–09, 

dated March 11, 2011. 

(3) Bombardier Service Bulletin 84–26–12, 

dated October 12, 2011. 

(i) 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, NY 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. 

(j) Related Information 

(1) Refer to MCAI Transport Canada Civil 

Aviation Airworthiness Directive CF–2012– 

07, dated January 27, 2012; and the service 

bulletins identified in paragraphs (j)(1)(i), 

(j)(1)(ii), and (j)(1)(iii) of this AD; for related 

information. 

(i) Bombardier Service Bulletin 84–26–08, 

Revision A, dated May 12, 2011. 

(ii) Bombardier Service Bulletin 84–26–09, 

Revision A, dated May 12, 2011. 

(iii) Bombardier Service Bulletin 84–26–12, 

Revision A, dated December 13, 2011. 

(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; 


wreier-aviles on DSK5TPTVN1PROD with PROPOSALS
60062 Federal Register / Vol. 77, No. 191 / Tuesday, October 2, 2012 / Proposed Rules 

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, 

WA. For information on the availability of 

this material at the FAA, call 425–227–1221. 

Issued in Renton, Washington, on 

September 21, 2012. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2012–24174 Filed 10–1–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–1052; Directorate 

Identifier 2012–CE–014–AD] 

RIN 2120–AA64 

Airworthiness Directives; Cessna 

Aircraft Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to supersede an 

existing airworthiness directive (AD) 

that applies to certain Cessna Aircraft 

Company (Cessna) Models 172R, 172S, 

182S, 182T, T182T, 206H, and T206H 

airplanes. The existing AD currently 

requires an inspection of the engine oil 

pressure switch and, if applicable, 

replacement of the engine oil pressure 

switch. Since we issued that AD, we 

have received new reports of internal 

failure of the engine oil pressure switch, 

which could result in complete loss of 

engine oil with consequent partial or 

complete loss of engine power or fire. 

This proposed AD would increase the 

applicability of the AD and place a lifelimit of 3,000 hours time-in-service on 

the engine oil pressure switch, requiring 

replacement when the engine oil 

pressure switch reaches its life limit. We 

are proposing this AD to correct the 

unsafe condition on these products. 

DATES: We must receive comments on 

this proposed AD by November 16, 

2012. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, 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: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this proposed AD, contact Cessna 

Aircraft Company, Product Support, 

P.O. Box 7706, Wichita, Kansas 67277; 

telephone: (316) 517–5800; fax (316) 

942–9006; Internet: www.cessna.com/

customer-service/technicalpublications.html. You may review 

copies of the 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. 

Examining the AD Docket 

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 proposed AD, the 

regulatory evaluation, any comments 

received, and other information. The 

street address for the Docket Office 

(phone: 800–647–5527) is in the 

ADDRESSES section. Comments will be 

available in the AD docket shortly after 

receipt. 

FOR FURTHER INFORMATION CONTACT: Jeff 

Janusz, Sr. Propulsion Engineer, Wichita 

Aircraft Certification Office, FAA, 1801 

Airport Road, Wichita, KS 67209; 

phone: (316) 946–4148; fax: (316) 946– 

4107; email: jeff.janusz@faa.gov. 

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–2012–1052; Directorate Identifier 

2012–CE–014–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 because of 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 

On February 11, 2000, we issued AD 

2000–04–01, amendment 39–11583 (65 

FR 8649, February 22, 2000), for certain 

Cessna Aircraft Company Models 172R, 

172S, 182S, 206H, and T206H airplanes. 

That AD requires inspection of the 

engine oil pressure switch to determine 

if the engine oil pressure switch is partnumber (P/N) 77041 or P/N 83278 and 

replacement of any P/N 77041 engine 

oil pressure switch with a P/N 83278 

engine oil pressure switch. That AD 

resulted from reports of failure of the 

engine oil pressure switch diaphragm. 

We issued that AD to prevent loss of 

engine oil through the failure of the 

engine oil pressure switch diaphragm, 

which could result in partial or 

complete loss of engine power. 

Actions Since Existing AD Was Issued 

Since we issued AD 2000–04–01, 

amendment 39–11583 (65 FR 8649, 

February 22, 2000), we have received 

new reports of internal failure of the 

engine oil pressure switch, which could 

result in complete loss of engine oil 

with consequent partial or complete loss 

of engine power or fire. 

Relevant Service Information 

We reviewed Cessna Service Bulletin 

07–79–01, dated January 29, 2007. The 

service information describes 

procedures for replacement of the 

engine oil pressure switch. 

FAA’s Determination 

We are proposing this AD because we 

evaluated all the relevant information 

and determined the unsafe condition 

described previously is likely to exist or 

develop in other products of these same 

type designs. 

Proposed AD Requirements 

This proposed AD would retain none 

of the requirements of AD 2000–04–01, 

amendment 39–11583 (65 FR 8649, 

February 22, 2000). This proposed AD 

would increase the applicability 

statement of the existing AD and require 

an inspection of the engine oil pressure 

switch with replacement of the engine 

oil pressure switch when it reaches its 

life limit of 3,000 hours time-in-service. 

We are proposing this AD to correct the 

unsafe condition on these products. 

Differences Between the Proposed AD 

and the Service Information 

Applicability in this proposed AD has 

been expanded to include additional 

airplane serial numbers. 

Costs of Compliance 

We estimate that this proposed AD 

affects 6,155 airplanes of U.S. registry. 


wreier-aviles on DSK5TPTVN1PROD with PROPOSALS