Federal Register / Vol. 74, No. 166 / Friday, August 28, 2009 / Proposed Rules 44311 

Actions Compliance Procedures 

(1) Inspect between the surface of the left-hand 

(LH) and right-hand (RH) upper wing skins 

and the engine mount beam support straps 

for any signs of corrosion and determine the 

extent of any corrosion found.

Within the next 150 hours time-in-service after 

the effective date of this AD or within the 

next 12 months after the effective date of 

this AD, whichever occurs first.

Follow Twin Commander Aircraft LLC Alert 

Service Bulletin No. 237, dated May 13, 

2005, pages 1 through 14. 

(2) Install modification access holes in the LH 

and RH lower wing skins.

Before further flight after the inspection required in paragraph (e)(1) of this AD.Follow the Accomplishment Instructions, steps 

1 through 4 and 6 through 9, of Twin Commander Aircraft Corporation Custom Kit No. 

150, dated July 8, 1994, as specified in 

Twin Commander Aircraft LLC Alert Service 

Bulletin No. 237, dated May 13, 2005. 

(3) If corrosion damage is found during the inspection required in paragraph (e)(1) of this 

AD, perform necessary modification.

Before further flight after the inspection required in paragraph (e)(1) of this AD.Follow Twin Commander Aircraft LLC Alert 

Service Bulletin No. 237, dated May 13, 

2005, Part II, Options A, B, or C, on pages 

15 through 29, and 31. 

(4) If corrosion damage is not found during the 

inspection required in paragraph (e)(1) of this 

AD, do the upper steel strap replacements.

Before further flight after the inspection required in paragraph (e)(1) of this AD.Follow Twin Commander Aircraft LLC Alert 

Service Bulletin No. 237, dated May 13, 

2005, Part II, Option D, on pages 30 and 

31. 

(5) Install additional wing fasteners on the LH 

and RH wing.

Before further flight after the inspection required in paragraph (e)(1) of the AD.Follow Gulfstream American Corporation 

Service Bulletin No. 182, dated March 2, 

1981. 

Note: Although not required by this AD, 

we highly recommend compliance with Twin 

Commander Aircraft Corporation Service 

Bulletin No. 217, Revision No. 1, dated May 

26, 1993, Engine Nacelle Firewall 

Reinforcement; and Twin Commander 

Aircraft LLC Alert Service Bulletin No. 239, 

dated February 13, 2006, Outboard Flap— 

Inboard Hinge Inspection & Reinforcement. 

Alternative Methods of Compliance 

(AMOCs) 

(f) The Manager, Seattle Aircraft 

Certification Office (ACO), FAA, has the 

authority to approve AMOCs for this AD, if 

requested using the procedures found in 14 

CFR 39.19. Send information to Attn: Vince 

Massey, Aerospace Engineer, FAA, Seattle 

ACO, 1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone: (425) 

917–6475; fax: (425) 917–6590; e-mail: 

vince.massey@faa.gov. Before using any 

approved AMOC on any airplane to which 

the AMOC applies, notify your appropriate 

principal inspector (PI) in the FAA Flight 

Standards District Office (FSDO), or lacking 

a PI, your local FSDO. 

Related Information 

(g) To get copies of the service information 

referenced in this AD, contact Twin 

Commander Aircraft, LLC, 19010 59th Drive, 

NE., Arlington, WA 98223, telephone: (360) 

435–9797; fax: (360) 435–1112; Internet: 

www.twincommander.com. To view the AD 

docket, go to U.S. Department of 

Transportation, Docket Operations, M–30, 

West Building Ground Floor, Room W12– 

140, 1200 New Jersey Avenue, SE., 

Washington, DC 20590, or on the Internet at 

http://www.regulations.gov. 

Issued in Kansas City, Missouri, on August 

21, 2009. 

Kim Smith, 

Manager, Small Airplane Directorate, Aircraft 

Certification Service. 

[FR Doc. E9–20789 Filed 8–27–09; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2009–0797; Directorate 

Identifier 2009–CE–032–AD] 

RIN 2120–AA64 

Airworthiness Directives; Hawker 

Beechcraft Corporation Models 58, 

58A, 58P, 58PA, 58TC, 58TCA, 95–B55, 

95–B55A, A36, A36TC, B36TC, E55, 

E55A, F33A, and V35B Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to supersede 

Airworthiness Directive (AD) 91–18–19, 

which applies to certain Hawker 

Beechcraft Corporation (Hawker) (Type 

Certificate Numbers 3A15, 3A16, and 

A23CE formerly held by Raytheon 

Aircraft Company; formerly held by 

Beech Aircraft Corporation) Models 58, 

58A, 58P, 58PA, 58TC, 58TCA, 95–B55, 

95–B55A, A36, A36TC, B36TC, E55, 

E55A, F33A, and V35B airplanes. AD 

91–18–19 currently requires you to do a 

one-time inspection of the pilot and 

copilot shoulder harnesses for an 

incorrect washer and replace any 

incorrect washer with the correct 

washer. Since we issued AD 91–18–19, 

we have found that the applicability of 

AD 91–18–19 was incorrectly stated 

when the Model A36TC airplane was 

omitted from the Applicability section. 

Consequently, this proposed AD would 

retain the actions and the serial number 

(SN) applicability of AD 91–18–19 and 

realign the SN applicability for Models 

A36TC and B36TC airplanes. We are 

proposing this AD to detect and correct 

an incorrect washer installed in the 

pilot and copilot shoulder harnesses. 

This failure could result in a 

malfunctioning shoulder harness. Such 

a failure could lead to occupant injury. 

DATES: We must receive comments on 

this proposed AD by October 27, 2009. 

ADDRESSES: Use one of the following 

addresses to comment on this proposed 

AD: 

• 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 20590, between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. 

For service information identified in 

this proposed AD, contact Hawker 

Beechcraft Corporation, P.O. Box 85, 

Wichita, Kansas 67201–0085; telephone: 

(800) 429–5372 or (316) 676–3140; 

Internet: http:// 

pubs.hawkerbeechcraft.com. 

FOR FURTHER INFORMATION CONTACT: 

Steve Potter, Aerospace Engineer, ACE– 

118W, Wichita Aircraft Certification 

Office (ACO), 1801 Airport Road, Room 

100, Wichita, Kansas 67209; telephone: 

(316) 946–4124; fax: (316) 946–4107. 

SUPPLEMENTARY INFORMATION: 


jlentini on DSKJ8SOYB1PROD with PROPOSALS
44312 Federal Register / Vol. 74, No. 166 / Friday, August 28, 2009 / Proposed Rules 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments 

regarding this proposed AD. Send your 

comments to an address listed under the 

ADDRESSES section. Include the docket 

number, ‘‘FAA–2009–0797; Directorate 

Identifier 2009–CE–032–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:// 

www.regulations.gov, including any 

personal information you provide. We 

will also post a report summarizing each 

substantive verbal contact we receive 

concerning this proposed AD. 

Discussion 

Reports of incorrect washers installed 

in the pilot and copilot shoulder 

harnesses on certain Beech 33, 35, 36, 

55, 58, and 95 series airplanes caused us 

to issue AD 91–18–19, Amendment 39– 

8022 (56 FR 42224, August 24, 1991). 

AD 91–18–19 currently requires the 

following on Models 58, 58A, 58P, 

58PA, 58TC, 58TCA, 95–B55, 95–B55A, 

A36, B36TC, E55, E55A, F33A, and 

V35B airplanes: 

• Inspecting the pilot and copilot 

shoulder harnesses for incorrect 

washers; and 

• Replacing any incorrect washers 

found with a part number (P/N) 

100951X060YA washer. 

The FAA has identified that the 

applicability of AD 91–18–19 was 

incorrectly stated when the Model 

A36TC airplane was omitted from the 

Applicability section. Further, SNs of 

the Model A36TC airplane were 

incorrectly aligned to the Model B36TC 

airplane. 

This condition, if not corrected, could 

result in an incorrect washer installed in 

the pilot and copilot shoulder 

harnesses. This failure could result in a 

malfunctioning shoulder harness. Such 

a failure could lead to occupant injury. 

Relevant Service Information 

We have reviewed Beechcraft 

Mandatory Service Bulletin No. 2394, 

dated December 1990. 

The service information describes 

procedures for: 

• Inspecting the pilot and copilot 

shoulder harnesses for incorrect 

washers; and 

• Replacing any incorrect washers 

found with a P/N 100951X060YA 

washer. 

FAA’s Determination and Requirements 

of the Proposed AD 

We are proposing this AD because we 

evaluated all information and 

determined the unsafe condition 

described previously is likely to exist or 

develop on other products of the same 

type design. This proposed AD would 

supersede AD 91–18–19 with a new AD 

that would incorporate the actions in 

the previously-referenced service 

information. This proposed AD would 

require you to use the service 

information described previously to 

perform these actions. 

Costs of Compliance 

We estimate that this proposed AD 

would affect 4,792 airplanes in the U.S. 

registry. 

We estimate the following costs to do 

the proposed inspection: 

Labor cost Parts cost Total cost 

per airplane 

Total cost 

on U.S. 

operators 

1 work-hour × $80 per hour = $80 ................................................................. Not applicable .................................... $80 $383,360 

We estimate the following costs to do 

any necessary replacements that would 

be required based on the results of the 

proposed inspection. We have no way of 

determining the number of airplanes 

that may need this replacement: 

Labor cost Parts 

cost 

Total cost 

per airplane 

1 work-hour × $80 per hour = $80 .......................................................................................................................................... $5 $85 

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 and placed it in the 

AD docket. 

Examining the AD Docket 

You may examine the AD docket that 

contains the proposed AD, the 

regulatory evaluation, any comments 

received, and other information on the 

Internet at http://www.regulations.gov; 

or in person at the Docket Management 

Facility between 9 a.m. and 5 p.m., 


jlentini on DSKJ8SOYB1PROD with PROPOSALS
Federal Register / Vol. 74, No. 166 / Friday, August 28, 2009 / Proposed Rules 44313 

Monday through Friday, except Federal 

holidays. The Docket Office (telephone 

(800) 647–5527) is located at the street 

address stated in the ADDRESSES section. 

Comments will be available in the AD 

docket shortly after receipt. 

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 

removing Airworthiness Directive (AD) 

91–18–19, Amendment 39–8022 (56 FR 

42224, August 24, 1991), and adding the 

following new AD: 

Hawker Beechcraft Corporation (Type 

Certificate Numbers 3A15, 3A16, and 

A23CE formerly held by Raytheon 

Aircraft Company; formerly held by 

Beech Aircraft Corporation):Docket No. 

FAA–2009–0797; Directorate Identifier 

2009–CE–032–AD. 

Comments Due Date 

(a) We must receive comments on this 

airworthiness directive (AD) action by 

October 27, 2009. 

Affected ADs 

(b) This AD supersedes AD 91–18–19, 

Amendment 39–8022. 

Applicability 

(c) This AD applies to the following 

airplane models and serial numbers that are 

certificated in any category: 

(1) Group 1 Airplanes (retains the actions 

and applicability from AD 91–18–19): 

Model Serial Nos. (SNs) 

58, 58A ............... TH–733 through TH– 

1609. 

58P, 58PA .......... TJ–3 through TJ–497. 

58TC, 58TCA ..... TK–1 through TK–151. 

95–B55, 95– 

B55A.

TC–1947 through TC– 

2456. 

A36 ..................... E–825 through E–2578. 

B36TC ................ EA–242 and EA–273 

through EA–509. 

Model Serial Nos. (SNs) 

E55, E55A .......... TE–1078 through TE– 

1201. 

F33A ................... CE–634 through CE– 

1536. 

V35B .................. D–9862 through D– 

10403. 

(2) Group 2 Airplanes (aligns certain SNs 

applicability to Models A36TC airplanes): 

Model SNs 

A36TC ................ EA–1 through EA–241 

and EA–243 through 

EA–272. 

Unsafe Condition 

(d) This AD results from reports of 

incorrect washers installed in the pilot and 

copilot shoulder harnesses on certain Beech 

33, 35, 36, 55, 58, and 95 series airplanes. We 

are issuing this AD to detect and correct an 

incorrect washer installed in the pilot and 

copilot shoulder harnesses. This failure 

could result in a malfunctioning shoulder 

harness. Such a failure could lead to 

occupant injury. 

Compliance 

(e) To address this problem, you must do 

the following, unless already done: 

Actions Compliance Procedures 

(1) Inspect the washers on the ‘‘D’’ ring of the 

pilot and copilot shoulder harnesses for correct metal, inner and outer diameter, and 

thickness.

(i) For Group 1 Airplanes: Within the next 100 

hours time-in-service (TIS) after October 

21, 1991 (the effective date of AD 91–18– 

19).

(ii) For Group 2 Airplanes: Within the next 100 

hours TIS after the effective date of this AD.

Follow Beechcraft Mandatory Service Bulletin 

No. 2394, dated December 1990. 

(2) If you find, as a result of the inspection required by paragraph (e)(1) of this AD, any 

washer does not meet the criteria for correct 

metal, inner and outer diameter, and thickness, replace the incorrect washer with part 

number 100951X060YA washer.

Before further flight, after the inspection required by paragraph (e)(1) of this AD.Follow Beechcraft Mandatory Service Bulletin 

No. 2394, dated December 1990. 

Alternative Methods of Compliance 

(AMOCs) 

(f) The Manager, Wichita Aircraft 

Certification Office (ACO), FAA, has the 

authority to approve AMOCs for this AD, if 

requested using the procedures found in 14 

CFR 39.19. Send information to ATTN: Steve 

Potter, Aerospace Engineer, ACE–118W, 

Wichita Aircraft Certification Office (ACO), 

1801 Airport Road, Room 100, Wichita, 

Kansas 67209; telephone: (316) 946–4124; 

fax: (316) 946–4107. Before using any 

approved AMOC on any airplane to which 

the AMOC applies, notify your appropriate 

principal inspector (PI) in the FAA Flight 

Standards District Office (FSDO), or lacking 

a PI, your local FSDO. 

(g) In reviewing the docket and project 

files, we found no AMOCs submitted for AD 

91–18–19. Since there are no AMOCs 

approved for AD 91–18–19 to approve for 

this AD, transfer of AMOCs to this AD does 

not apply. 

Related Information 

(h) To get copies of the service information 

referenced in this AD, contact Hawker 

Beechcraft Corporation, P.O. Box 85, Wichita, 

Kansas 67201–0085; telephone: (800) 429– 

5372 or (316) 676–3140; Internet: http:// 

pubs.hawkerbeechcraft.com. To view the AD 

docket, go to U.S. Department of 

Transportation, Docket Operations, M–30, 

West Building Ground Floor, Room W12– 

140, 1200 New Jersey Avenue, SE., 

Washington, DC 20590, or on the Internet at 

http://www.regulations.gov. 

Issued in Kansas City, Missouri, on 

August 20, 2009. 

Kim Smith, 

Manager, Small Airplane Directorate, Aircraft 

Certification Service. 

[FR Doc. E9–20832 Filed 8–27–09; 8:45 am] 

BILLING CODE 4910–13–P 

ENVIRONMENTAL PROTECTION 

AGENCY 

40 CFR Part 49 

[EPA–R09–OAR–2009–0598; FRL–8950–6] 

Assessment of Anticipated Visibility 

Improvements at Surrounding Class I 

Areas and Cost Effectiveness of Best 

Available Retrofit Technology for Four 

Corners Power Plant and Navajo 

Generating Station: Advanced Notice 

of Proposed Rulemaking 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Advanced Notice of Proposed 

Rulemaking. 

SUMMARY: The Environmental Protection 

Agency is providing an Advanced 

Notice of Proposed Rulemaking (ANPR) 


jlentini on DSKJ8SOYB1PROD with PROPOSALS