This section of the FEDERAL REGISTER

contains notices to the public of the proposed

issuance of rules and regulations. The

purpose of these notices is to give interested

persons an opportunity to participate in the

rule making prior to the adoption of the final

rules.

Proposed Rules Federal Register

1563 

Vol. 81, No. 8 

Wednesday, January 13, 2016 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2013–0703; Directorate 

Identifier 2013–NM–004–AD] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc. Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Supplemental notice of 

proposed rulemaking (NPRM); 

reopening of comment period. 

SUMMARY: We are revising an earlier 

proposed airworthiness directive (AD) 

for certain Bombardier, Inc. Model 

DHC–8–102, –103, –106, –201, –202, 

–301, –311, and –315 airplanes. The 

NPRM proposed to require repetitive 

inspections for discrepancies on certain 

AC generator mounting adapters, and 

replacing discrepant adapters with 

serviceable ones. The NPRM also 

proposed to require revising the 

maintenance program to incorporate a 

repetitive task specified in certain 

temporary revisions. The NPRM was 

prompted by a report of a pilot 

commanding an in-flight engine shut 

down in response to a low oil pressure 

warning indication. Further 

investigation revealed the mounting 

studs in the engine mounted alternating 

current (AC) generator mounting plate 

were pulled out of position and the 

threaded interface in the plate was 

corroded. This action revises the NPRM 

by expanding the applicability. We are 

proposing this supplemental NPRM 

(SNPRM) to detect and correct corrosion 

in the AC generator mounting plate, 

which could result in a gap between the 

AC generator and the generator 

mounting plate, and cause loss of engine 

oil and consequent engine failure. Since 

these actions impose an additional 

burden over those proposed in the 

NPRM, we are reopening the comment 

period to allow the public the chance to 

comment on these proposed changes. 

DATES: We must receive comments on 

this SNPRM by February 29, 2016. 

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: 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 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–2013– 

0703; 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 

(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 Services Branch, ANE– 

172, FAA, New York Aircraft 

Certification Office (ACO), 1600 Stewart 

Avenue, Suite 410, Westbury, NY 

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–2013–0703; Directorate Identifier 

2013–NM–004–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 

We issued an NPRM to amend 14 CFR 

part 39 by adding an AD that would 

apply to certain Bombardier, Inc. Model 

DHC–8–102, –103, –106, –201, –202, 

–301, –311, and –315 series airplanes. 

The NPRM published in the Federal 

Register on August 28, 2013 (78 FR 

53080). The NPRM was prompted by a 

report of a pilot commanding an inflight engine shut down in response to 

a low oil pressure warning indication. 

Further investigation revealed the 

mounting studs in the engine mounted 

alternating current (AC) generator 

mounting plate were pulled out of 

position and the threaded interface in 

the plate was corroded. The NPRM 

proposed to require repetitive 

inspections for discrepancies on certain 

AC generator mounting adapters, and 

replacing discrepant adapters with 

serviceable ones. The NPRM also 

proposed to require revising the 

maintenance program to incorporate a 

repetitive task specified in certain 

temporary revisions. 

Actions Since Previous NPRM (78 FR 

53080, August 28, 2013) Was Issued 

Since we issued the NPRM (78 FR 

53080, August 28, 2013), we have 

received a report that additional 

airplanes are affected by the identified 

unsafe condition. Transport Canada 

Civil Aviation (TCCA), which is the 


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1564 Federal Register / Vol. 81, No. 8 / Wednesday, January 13, 2016 / Proposed Rules 

aviation authority for Canada, has 

issued Canadian Airworthiness 

Directive, CF–2012–29R1, dated April 

28, 2015 (referred to after this as the 

Mandatory Continuing Airworthiness 

Information, or ‘‘the MCAI’’), to correct 

an unsafe condition on certain 

Bombardier, Inc. Model DHC–8–102, 

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

–315 airplanes. The MCAI states: 

An incident has been reported, on the 

DHC–8 aeroplane, where a pilot commanded 

in-flight engine shut down in response to an 

engine low oil pressure warning indication. 

Further investigation revealed the 

mounting studs in the engine mounted 

alternating current (AC) generator mounting 

plate were pulled out of position and the 

threaded interface in the plate corroded. This 

resulted in a gap between the AC generator 

and the generator mounting plate, leading to 

the loss of engine oil and the ensuing 

illumination of the associated engine low oil 

pressure warning indication. 

To ensure the integrity of the affected 

units, Part I of this [Canadian] AD mandates 

an inspection of the affected AC generator 

mounting adapters part numbers (P/N) 

31708–500 or 31708–501, and, as applicable, 

replacement with new or serviceable 

mounting plates. 

Part II of this [Canadian] AD mandates the 

incorporation of a repeat Maintenance 

Review Board (MRB) inspection applicable to 

the replacement of the AC generator 

mounting adapters P/Ns 31708–510 or 

31708–511 only. 

Revision 1 of this [Canadian] AD is issued 

to include additional aeroplane serial 

numbers (003 through 018) to the 

Applicability section, and to clarify the 

compliance schedules in Part I B. and Part II 

below. 

You may examine the MCAI in the 

AD docket on the Internet at http://

www.regulations.gov/

#!documentDetail;D=FAA-2013- 

07030002. 

Related Service Information Under 

1 CFR Part 51 

Bombardier has issued Bombardier 

Service Bulletin 8–24–88, Revision A, 

dated September 23, 2014. The service 

information describes repetitive 

inspections for discrepancies on certain 

AC generator mounting adapters, and 

replacing discrepant adapters with 

serviceable ones. 

Bombardier has also issued the 

following service information, which 

describes maintenance review board 

(MRB) task 2420/14 (functional check of 

the AC generator adapter kit): 

• de Havilland Dash 8 Series 100 

Temporary Revision MRB–153, dated 

July 10, 2012, to Part 1 Section 2— 

Systems, of the de Havilland Dash 8 

Series 100 Maintenance Program 

Manual PSM 1–8–7 MRB Report. 

• de Havilland Dash 8 Series 200 

Temporary Revision MRB 2–31, dated 

July 10, 2012, to Part 1 Section 2— 

Systems of the de Havilland Dash 8 

Series 200 Maintenance Program 

Manual PSM 1–82–7 MRB Report. 

• de Havilland Dash 8 Series 300 

Temporary Revision MRB 3–162, dated 

July 10, 2012, to Part 1 Section 2— 

Systems of the de Havilland Dash 8 

Series 300 Maintenance Program 

Manual PSM 1–83–7 MRB Report. 

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. 

Comments 

We gave the public the opportunity to 

participate in developing this proposed 

AD. We received no comments on the 

NPRM (78 FR 53080, August 28, 2013) 

or on the determination of the cost to 

the public. 

FAA’s Determination and Requirements 

of This SNPRM 

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. 

Certain changes described above 

expand the scope of the NPRM (78 FR 

53080, August 28, 2013). As a result, we 

have determined that it is necessary to 

reopen the comment period to provide 

additional opportunity for the public to 

comment on this SNPRM. 

Costs of Compliance 

We estimate that this proposed AD 

affects 88 airplanes of U.S. registry. 

We also estimate that it would take 

about 6 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 $4,000 per 

product. Based on these figures, we 

estimate the cost of the proposed AD on 

U.S. operators to be $396,880, or $4,510 

per product. 

We have received no definitive data 

that would enable us to provide cost 

estimates for the on-condition actions 

specified in this proposed AD. 

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. 

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 airworthiness 

directive (AD): 


asabaliauskas on DSK5VPTVN1PROD with PROPOSALS
Federal Register / Vol. 81, No. 8 / Wednesday, January 13, 2016 / Proposed Rules 1565 

Bombardier, Inc.: Docket No. FAA–2013– 

0703; Directorate Identifier 2013–NM– 

004–AD. 

(a) Comments Due Date 

We must receive comments by February 

29, 2016. 

(b) Affected ADs 

None. 

(c) Applicability 

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 003 through 672 

inclusive. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 24, Electrical power. 

(e) Reason 

This AD was prompted by a report of a 

pilot commanding an in-flight engine shut 

down in response to a low oil pressure 

warning indication. Further investigation 

revealed the mounting studs in the engine 

mounted alternating current (AC) generator 

mounting plate were pulled out of position 

and the threaded interface in the plate 

corroded. We are issuing this AD to detect 

and correct corrosion in the AC generator 

mounting plate, which could result in a gap 

between the AC generator and the generator 

mounting plate, and cause loss of engine oil 

and consequent engine failure. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Inspection of AC Generator Mounting 

Adaptor and Corrective Action 

Within 6,000 flight hours, or 36 months, or 

when the AC generator is removed for 

service, whichever occurs first, after the 

effective date of this AD: Do a general visual 

inspection and a mechanical inspection for 

discrepancies (i.e., damage, corrosion, and 

failed mechanical inspection) on AC 

generator mounting adapters having P/N 

31708–500 and P/N 31708–501, in 

accordance with the Accomplishment 

Instructions of Bombardier Service Bulletin 

8–24–88, Revision A, dated September 23, 

2014. If any discrepancy (i.e., damage, 

corrosion, or failed mechanical inspection) is 

found, before further flight, replace the AC 

generator mounting adapter with a 

serviceable mounting adapter having P/N 

31708–510, P/N 31708–511, P/N 31708–500, 

or 31708–501, in accordance with the 

Accomplishment Instructions of Bombardier 

Service Bulletin 8–24–88, Revision A, dated 

September 23, 2014. 

(h) Repetitive Inspections 

For in-service mounting adapters that have 

P/N 31708–500 or P/N 31708–501: Repeat the 

general visual and mechanical inspection 

required by paragraph (g) of this AD 

thereafter at intervals not to exceed 6,000 

flight hours, or 36 months after the most 

recent inspection, or when the AC generator 

is removed for service, whichever occurs 

first. 

(i) Replacement of Certain AC Generator 

Mounting Adaptors 

For airplanes having AC generator 

mounting adapters that have P/N 31708–500 

or 31708–501: Within the later of the times 

specified in paragraphs (i)(1) and (i)(2) of this 

AD, replace the AC generator mounting 

adapter with a new AC generator mounting 

adapter having P/N 31708–510 or 31708–511. 

(1) Before the accumulation of 120 months 

on the AC generator mounting adapter. 

(2) Within 12 months, or 2,000 flight hours, 

or when the generator is removed from 

service, whichever occurs first after the 

effective date of this AD. 

(j) Airplane Maintenance Program Revision 

For airplanes having AC generator 

mounting adapters that have P/N 31708–510 

or 31708–511: Within 30 days after the 

effective date of this AD, revise the airplane 

maintenance or inspection program, as 

applicable, by incorporating maintenance 

review board (MRB) Task 2420/14 in the 

applicable maintenance program manual 

specified in paragraph (j)(1), (j)(2), or (j)(3) of 

this AD. The initial compliance time for MRB 

Task 2420/14 is prior to the accumulation of 

10,000 total flight hours or within 60 months 

since installation of the part, whichever 

occurs first. 

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

airplanes: de Havilland Dash 8 Series 100 

Temporary Revision MRB–153, dated July 10, 

2012, Part 1 Section 2—Systems, of the de 

Havilland Dash 8 Series 100 Maintenance 

Program Manual PSM 1–8–7 MRB Report. 

(2) For Model DHC–8–201 and –202 

airplanes: de Havilland Dash 8 Series 200 

Temporary Revision MRB 2–31, dated July 

10, 2012, Part 1 Section 2—Systems of the de 

Havilland Dash 8 Series 200 Maintenance 

Program Manual PSM 1–82–7 MRB Report. 

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

airplanes: de Havilland Dash 8 Series 300 

Temporary Revision MRB 3–162, dated July 

10, 2012, Part 1 Section 2—Systems of the de 

Havilland Dash 8 Series 300 Maintenance 

Program Manual PSM 1–83–7 MRB Report. 

(k) No Alternative Actions or Intervals 

After the maintenance or inspection 

program has been revised as required by 

paragraph (j) of this AD, no alternative 

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

used unless the actions or intervals are 

approved as an alternative method of 

compliance (AMOC) in accordance with the 

procedures specified in paragraph (m)(1) of 

this AD. 

(l) 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 Bombardier Service 

Bulletin 8–24–88, dated December 13, 2011. 

(m) 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) 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, New York ACO, ANE–170, 

Engine and Propeller Directorate, FAA; or 

Transport Canada Civil Aviation (TCCA); or 

Bombardier, Inc.’s TCCA Design Approval 

Organization (DAO). If approved by the DAO, 

the approval must include the DAOauthorized signature. 

(n) Related Information 

(1) Refer to Mandatory Continuing 

Airworthiness Information (MCAI) Canadian 

AD CF–2012–29R1, dated April 28, 2015, for 

related information. This MCAI may be 

found in the AD docket on the Internet at 

http://www.regulations.gov/

#!documentDetail;D=FAA-2013-0703-0002. 

(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 view this 

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 

December 31, 2015. 

Phil Forde, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2016–00167 Filed 1–12–16; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2015–8430; Directorate 

Identifier 2015–NM–093–AD] 

RIN 2120–AA64 

Airworthiness Directives; Fokker 

Services B.V. Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 


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