54314 Federal Register / Vol. 70, No. 177 / Wednesday, September 14, 2005 / Proposed Rules 

Actions Compliance Procedures 

(3) If you cannot positively determined by 

checking the sailplane service history 

records that the replacement specified in 

paragraph (e)(1) of this AD has been done, 

replace P/N 103–3521 with P/N 103–3523.

Within the next 25 hours TIS after the effective date of this AD.Following GROB Luft-und Raumfahrt Service 

Bulletin MSB 315–67/1 dated December 20, 

2004. 

(4) Do not install any P/N 103–3521, aluminum 

cast alloy elevator lever.

As of the effective date of this AD ................... Not applicable. 

May I Request an Alternative Method of 

Compliance? 

(f) You may request a different method of 

compliance or a different compliance time 

for this AD by following the procedures in 14 

CFR 39.19. Unless FAA authorizes otherwise, 

send your request to your principal 

inspector. The principal inspector may add 

comments and will send your request to the 

Manager, Standards Office, Small Airplane 

Directorate, FAA. For information on any 

already approved alternative methods of 

compliance, contact Greg Davison, Aerospace 

Engineer, FAA, Small Airplane Directorate, 

901 Locust, Room 301, Kansas City, Missouri 

64106; telephone: (816) 329–4130; facsimile: 

(816) 329–4090. 

Is There Other Information That Relates to 

This Subject? 

(g) German AD Number D–2004–292R1, 

dated February 28, 2005, also addresses the 

subject of this AD. 

May I Get Copies of the Documents 

Referenced in This AD? 

(h) To get copies of the documents 

referenced in this AD, contact Burkhardt 

Grob Luft-Und Raumfahrt GmbH & CO KG, 

Letenbachstrasse 9, D–86874 TussenhausenMattsies, Germany; telephone: 011 49 8268 

998139; facsimile: 011 49 8268 998200. To 

view the AD docket, go to the Docket 

Management Facility; U.S. Department of 

Transportation, 400 Seventh Street, SW., 

Nassif Building, Room PL–401, Washington, 

DC, or on the Internet at http://dms.dot.gov. 

This is docket number FAA–2005–22156; 

Directorate Identifier 2005–CE–43–AD. 

Issued in Kansas City, Missouri, on 

September 8, 2005. 

David R. Showers, 

Acting Manager, Small Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 05–18205 Filed 9–13–05; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2005–22401; Directorate 

Identifier 2004–NM–93–AD] 

RIN 2120–AA64 

Airworthiness Directives; Hamburger 

Flugzeugbau G.m.b.H. Model HFB 320 

HANSA Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for all 

Hamburger Flugzeugbau G.m.b.H. 

Model HFB 320 HANSA airplanes. This 

proposed AD would require revising the 

Limitations Section of the Airplane 

Flight Manual to prohibit operation of 

the airplane past its designed life limit 

for the primary structure, which is 

15,000 flight hours or 15,000 fight 

cycles, whichever occurs first; and to 

require contacting the FAA for approval 

of analysis that the airplane is safe to 

continue operation beyond the designed 

life limit. This proposed AD is 

prompted by a report that all airplanes 

in operation might have met or 

exceeded the designed life limit for the 

primary structure. We are proposing this 

AD to prevent continued operation of an 

airplane beyond its designed life limit 

for the primary structure, which could 

result in reduced structural integrity of 

the airplane. 

DATES: We must receive comments on 

this proposed AD by October 14, 2005. 

ADDRESSES: Use one of the following 

addresses to submit comments on this 

proposed AD. 

• DOT Docket Web site: Go to http:// 

dms.dot.gov and follow the instructions 

for sending your comments 

electronically. 

• Government-wide rulemaking Web 

site: Go to http://www.regulations.gov 

and follow the instructions for sending 

your comments electronically. 

• Mail: Docket Management Facility, 

U.S. Department of Transportation, 400 

Seventh Street SW., Nassif Building, 

Room PL–401, Washington, DC 20590. 

• By fax: (202) 493–2251. 

• Hand Delivery: Room PL–401 on 

the plaza level of the Nassif Building, 

400 Seventh Street SW., 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 Airbus 

Deutschland G.m.b.H, Customer Service 

HFB 320, Postfach 95 01 09, D–21111 

Hamburg, Germany. 

You can examine the contents of this 

AD docket on the Internet at http:// 

dms.dot.gov, or in person at the Docket 

Management Facility, U.S. Department 

of Transportation, 400 Seventh Street 

SW., room PL–401, on the plaza level of 

the Nassif Building, Washington, DC. 

This docket number is FAA–2005–

22401; the directorate identifier for this 

docket is 2004–NM–93–AD. 

FOR FURTHER INFORMATION CONTACT: Dan 

Rodina, Aerospace Engineer, 

International Branch, ANM–116, FAA, 

Transport Airplane Directorate, 1601 

Lind Avenue, SW., Renton, Washington 

98055–4056; telephone (425) 227–2125; 

fax (425) 227–1149. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to submit any relevant 

written data, views, or arguments 

regarding this proposed AD. Send your 

comments to an address listed under 

ADDRESSES. Include ‘‘Docket No. FAA–

2005–22401; Directorate Identifier 

2004–NM–93–AD’’ at the beginning of 

your comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of the proposed AD. We will 

consider all comments submitted by the 

closing date and may amend the 

proposed AD in light of those 

comments. 

We will post all comments we 

receive, without change, to http:// 

dms.dot.gov, including any personal 

information you provide. We will also 

post a report summarizing each 

substantive verbal contact with FAA 

personnel concerning this proposed AD. 

Using the search function of our docket 

Web site, anyone can find and read the 

comments in any of our dockets, 

Federal Register / Vol. 70, No. 177 / Wednesday, September 14, 2005 / Proposed Rules 54315 

including the name of the individual 

who sent the comment (or signed the 

comment on behalf of an association, 

business, labor union, etc.). You can 

review the DOT’s complete Privacy Act 

Statement in the Federal Register 

published on April 11, 2000 (65 FR 

19477–78), or you can visit http:// 

dms.dot.gov. 

Examining the Docket 

You can examine the AD docket on 

the Internet at http://dms.dot.gov, or in 

person at the Docket Management 

Facility office between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. The Docket 

Management Facility office (telephone 

(800) 647–5227) is located on the plaza 

level of the Nassif Building at the DOT 

street address stated in the ADDRESSES

section. Comments will be available in 

the AD docket shortly after the DMS 

receives them. 

Discussion 

The Luftfahrt-Bundesamt (LBA) , 

which is the airworthiness authority for 

Germany, notified us that an unsafe 

condition may exist on all Hamburger 

Flugzeugbau G.m.b.H. Model HFB 320 

HANSA airplanes. The LBA advises that 

it is now possible that these airplanes 

might have exceeded, be close to, or 

have reached the design goal of the 

primary structure, which is 15,000 flight 

cycles, or 15,000 flight hours, whichever 

occurs first. The LBA states that Chapter 

5 of the airplane maintenance manual 

(AMM) should be revised to prohibit 

operators from flying the airplane after 

it reaches its design goal, unless the 

operator complies with further 

inspections and/or modifications. This 

condition, if not corrected, could result 

in reduced structural integrity of the 

airplane. 

Relevant Service Information 

Hamburger Flugzeugbau has issued 

HFB 320 Hansa Service Bulletin 05–01, 

Revision 1, dated December 11, 2002. 

The service bulletin describes 

procedures for inserting Temporary 

Revision (TR) 5–55, dated December 11, 

2002, into Chapter 5 of the AMM. TR 5–

55 restricts use of the AMM to the 

design goal limit (life limit) of the 

airplane. TR 5–55 is included in the 

service bulletin. For airplanes that 

reach, or have exceeded, the life limit of 

15,000 flight cycles, or 15,000 flight 

hours, the service bulletin states that 

operators should contact the 

manufacturer to determine a program of 

inspections and repairs for the airplane 

to extend its operation. The service 

bulletin also recommends that operators 

of airplanes that have reached or 

exceeded the life limit send a report to 

the manufacturer indicating that they 

have inserted TR 5–55 into Chapter 5 of 

the AMM; and giving information about 

the airplane and its owner. 

Accomplishing the actions specified in 

the service information is intended to 

adequately address the unsafe 

condition. The LBA mandated the 

service information and issued German 

airworthiness directive 2002–158, dated 

October 3, 2002, to ensure the continued 

airworthiness of these airplanes in 

Germany. 

FAA’s Determination and Requirements 

of the Proposed AD 

This airplane model is manufactured 

in Germany and is type certificated for 

operation in the United States under the 

provisions of section 21.29 of the 

Federal Aviation Regulations (14 CFR 

21.29) and the applicable bilateral 

airworthiness agreement. Pursuant to 

this bilateral airworthiness agreement, 

the LBA has kept the FAA informed of 

the situation described above. We have 

examined the LBA’s findings, evaluated 

all pertinent information, and 

determined that we need to issue an AD 

for products of this type design that are 

certificated for operation in the United 

States. 

Therefore, we are proposing this AD, 

which would require revising the 

airplane flight manual to prohibit 

operation of the airplane past its 

designed life limit for the primary 

structure, which is 15,000 flight hours 

or 15,000 fight cycles, whichever occurs 

first. This proposed AD would also 

require contacting the FAA for approval 

to continue operation beyond the 

designed life limit. 

Differences Between the Proposed AD 

and the German Airworthiness 

Directive 

The German airworthiness directive 

also specifies that operators should 

ground airplanes that have reached the 

designed life limit, and contact the 

manufacturer to determine actions to 

take for continued airworthiness. This 

proposed AD would require that 

operators contact the FAA to determine 

these actions. 

Operators should note that, although 

the German airworthiness directive 

specifies that operators should send an 

accomplishment report to the 

manufacturer, this proposed AD would 

not require that action. 

Costs of Compliance 

There are 4 airplanes of U.S. registry 

that would be affected by this proposed 

AD. The revision to the Airworthiness 

Limitations Section of the Instructions 

for Continued Airworthiness that is 

proposed in this AD would take about 

1 work hour per airplane at an average 

labor rate of $65 per work hour. Based 

on these figures, the cost of the 

proposed AFM revision for U.S. 

operators would be $260, or $65 per 

airplane. We recognize that this 

proposed AD may impose certain 

additional operational costs. However, 

we cannot calculate those costs because 

we cannot predict the extent of any 

necessary repairs to ensure the 

continued airworthiness of the affected 

airplanes. 

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 have 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 that the 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); and 

3. 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. See the ADDRESSES

section for a location to examine the 

regulatory evaluation. 

54316 Federal Register / Vol. 70, No. 177 / Wednesday, September 14, 2005 / Proposed Rules 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, 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): 

Hamburger Flugzeugbau G.m.b.H.: Docket 

No. FAA–2005–22401; Directorate 

Identifier 2004–NM–93–AD. 

Comments Due Date 

(a) The Federal Aviation Administration 

must receive comments on this AD action by 

October 14, 2005. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to all Hamburger 

Flugzeugbau Model HFB 320 HANSA 

airplanes, certificated in any category. 

Unsafe Condition 

(d) This AD was prompted by a report that 

all airplanes in operation might have met or 

exceeded the designed life limit for the 

primary structure. We are issuing this AD to 

prevent continued operation of an airplane 

beyond its designed life limit for the primary 

structure, which could result in reduced 

structural integrity of the airplane. 

Compliance 

(e) You are responsible for having the 

actions required by this AD performed within 

the compliance times specified, unless the 

actions have already been done. 

Airworthiness Limitations Revision 

(f) Within 30 days after the effective date 

of this AD: Revise the Limitations section of 

the Airplane Flight Manual (AFM) to state 

the following (or insert a copy of this AD into 

the limitations section): 

Do not operate the airplane beyond 15,000 

total flight cycles, or 15,000 total flight hours, 

whichever occurs first. 

(g) This limitation may be removed from 

the AFM after the Manager, International 

Branch, ANM–116, FAA, approves analysis 

that would substantiate continued safe 

operation beyond the designed life limit of 

15,000 total flight cycles, or within 15,000 

total flight hours on the airplane, whichever 

occurs first. 

Alternative Methods of Compliance 

(AMOCs) 

(h) The Manager, International Branch, 

ANM–116, has the authority to approve 

AMOCs for this AD, if requested in 

accordance with the procedures found in 14 

CFR 39.19. 

Related Information 

(i) German airworthiness directive 2002–

158, dated October 3, 2002, also addresses 

the subject of this AD. 

Issued in Renton, Washington, on 

September 6, 2005. 

Kalene C. Yanamura, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 05–18210 Filed 9–13–05; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2005–20403; Directorate 

Identifier 2005–NM–144–AD] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier 

Model DHC–8–400 Series Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for 

certain Bombardier Model DHC–8–400 

series airplanes. This proposed AD 

would require an inspection of the 

laminated shims for cracks, damage, or 

extrusion between the forward 

attachment fittings of the horizontal 

stabilizer and the top rib of the vertical 

stabilizer; a torque check of the 

attachment bolts in the attachment 

fittings of the front, middle, and rear 

spars; and corrective actions if 

necessary. This proposed AD results 

from a report indicating that 

delaminated shims extruded from the 

interface between the forward attaching 

fittings of horizontal stabilizer and the 

top rib of the vertical stabilizer, and that 

inadequate torque values of some bolts 

were found. We are proposing this AD 

to prevent reduced structural integrity 

of the horizontal stabilizer, and 

consequent loss of controllability of the 

airplane. 

DATES: We must receive comments on 

this proposed AD by October 14, 2005. 

ADDRESSES: Use one of the following 

addresses to submit comments on this 

proposed AD. 

• DOT Docket Web site: Go to http:// 

dms.dot.gov and follow the instructions 

for sending your comments 

electronically. 

• Government-wide rulemaking Web 

site: Go to http://www.regulations.gov 

and follow the instructions for sending 

your comments electronically. 

• Mail: Docket Management Facility, 

U.S. Department of Transportation, 400 

Seventh Street SW., Nassif Building, 

Room PL–401, Washington, DC 20590. 

• Fax: (202) 493–2251. 

• Hand Delivery: Room PL–401 on 

the plaza level of the Nassif Building, 

400 Seventh Street SW., Washington, 

DC, between 9 a.m. and 5 p.m., Monday 

through Friday, except Federal holidays. 

Contact Bombardier, Inc., Bombardier 

Regional Aircraft Division, 123 Garratt 

Boulevard, Downsview, Ontario M3K 

1Y5, Canada, for service information 

identified in this proposed AD. 

FOR FURTHER INFORMATION CONTACT: 

George Duckett, Aerospace Engineer, 

Airframe and Propulsion Branch, ANE–

171, FAA, New York Aircraft 

Certification Office, 1600 Stewart 

Avenue, suite 410, Westbury, New York 

11590; telephone (516) 256–7525; fax 

(516) 794–5531. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to submit any relevant 

written data, views, or arguments 

regarding this proposed AD. Send your 

comments to an address listed in the 

ADDRESSES section. Include the docket 

number ‘‘FAA–2005–20403; Directorate 

Identifier 2005–NM–144–AD’’ at the 

beginning of your comments. We 

specifically invite comments on the 

overall regulatory, economic, 

environmental, and energy aspects of 

the proposed AD. We will consider all 

comments received by the closing date 

and may amend the proposed AD in 

light of those comments. 

We will post all comments we 

receive, without change, to http:// 

dms.dot.gov, including any personal 

information you provide. We will also 

post a report summarizing each 

substantive verbal contact with FAA 

personnel concerning this proposed AD. 

Using the search function of that Web 

site, anyone can find and read the 

comments in any of our dockets, 

including the name of the individual 

who sent the comment (or signed the 

comment on behalf of an association, 

business, labor union, etc.). You may 

review the DOT’s complete Privacy Act 

Statement in the Federal Register 

published on April 11, 2000 (65 FR 

19477–78), or you may visit http:// 

dms.dot.gov.