Federal Register / Vol. 74, No. 149 / Wednesday, August 5, 2009 / Rules and Regulations 38899 

(i) If the cylinder pressure gauge reads 

below 60 pounds per-square inch, determine 

if the unacceptable pressure is due to a 

cracked cylinder. 

(ii) To check the cylinder, apply a 2 

percent soapy water solution to the side of 

the leaking cylinder. 

(iii) If you see air bubbles, indicating air 

leakage, on the side of the cylinder head, or 

near the head-to-cylinder interface, replace 

the cylinder assembly before further flight. 

(h) Thereafter, repeat the cylinder visual 

inspections and compression tests within 50 

FH time-since-last inspection (TSLI) until the 

cylinders reach their time-between-overhaul 

(TBO) limits specified in Teledyne 

Continental Aircraft Engine Service 

Information Letter SIL98–9A, Revision A, 

dated March 28, 2003. 

Replacing SAP Cylinder Assemblies 

(i) For TCM IO–520, TSIO–520, and IO– 

550 series reciprocating engines with SAP 

investment cast cylinder assemblies, P/Ns 

SA52000–A1, SA52000–A20P, SA52000– 

A21P, SA52000–A22P, SA52000–A23P, 

SA55000–A1, or SA55000–A20P, replace the 

SAP cylinder head assembly at the first TBO 

after the effective date of this AD. Engines 

that were already overhauled may continue 

in service until the first TBO after the 

effective date of this AD. 

Prohibition Against Installing Certain P/N 

SAP Cylinder Assemblies 

(j) After the effective date of this AD, do 

not install any SAP investment cast cylinder 

assembly, P/Ns SA52000–A1, SA52000– 

A20P, SA52000–A21P, SA52000–A22P, 

SA52000–A23P, SA55000–A1, or SA55000– 

A20P, in any engine. 

Alternative Methods of Compliance 

(k) The Manager, Special Certification 

Office, has the authority to approve 

alternative methods of compliance for this 

AD if requested using the procedures found 

in 14 CFR 39.19. 

Special Flight Permits 

(l) Under 14 CFR part 39.23, we will not 

approve special flight permits for this AD for 

engines that have failed the visual inspection 

or the 50 hour periodic cylinder assembly 

compression test required by this AD. 

Related Information 

(m) Teledyne Continental Service Bulletin 

No. SB03–3 ‘‘Differential Pressure Test and 

Borescope Inspection Procedures for 

Cylinders’’, dated March 28, 2003. 

(n) Contact Peter W. Hakala, Aerospace 

Engineer, Special Certification Office, FAA, 

Rotorcraft Directorate, 2601 Meacham Blvd., 

Fort Worth, TX 76137; e-mail: 

peter.w.hakala@faa.gov; telephone (817) 

222–5145; fax (817) 222–5785, for more 

information about this AD. 

Material Incorporated by Reference 

(o) You must use Teledyne Continental 

Aircraft Engine Service Information Letter 

SIL98–9A, Revision A, dated March 28, 2003 

to determine the times-between-overhaul 

required by this AD. The Director of the 

Federal Register approved the incorporation 

by reference of this service information in 

accordance with 5 U.S.C. 552(a) and 1 CFR 

part 51. Contact Teledyne Continental 

Motors, Inc., P.O. Box 90, Mobile, Alabama; 

telephone (251) 438–3411, or go to: http:// 

www.genuinecontinental.aero, for a copy of 

this service information. You may review 

copies at the FAA, New England Region, 12 

New England Executive Park, Burlington, 

MA; or at the National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, call 

202–741–6030, or go to: http:// 

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued in Burlington, Massachusetts, on 

July 23, 2009. 

Peter A. White, 

Assistant Manager, Engine and Propeller 

Directorate, Aircraft Certification Service. 

[FR Doc. E9–18220 Filed 8–4–09; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2009–0168; Directorate 

Identifier 2007–SW–33–AD; Amendment 39– 

15977; AD 2009–15–14] 

RIN 2120–AA64 

Airworthiness Directives; Agusta 

S.p.A. Model AB139 and AW139 

Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for the 

specified Agusta S.p.A. (Agusta) Model 

AB139 and AW139 helicopters. This AD 

results from mandatory continuing 

airworthiness information (MCAI) 

originated by an aviation authority of 

another country to identify and correct 

an unsafe condition on an aviation 

product. The aviation authority of Italy, 

with which we have a bilateral 

agreement, states in the MCAI that 

during the installation of a fire 

extinguisher bottle on a new helicopter, 

it was found that the electrical 

receptacle/connectors on the bottle 

which commands the firing of the 

extinguishing agent were swapped 

between engines No. 1 and No. 2. This 

condition could affect helicopters 

already in service and fire extinguisher 

bottles of the same part number in stock 

as spare parts. If not corrected, an 

improperly wired fire extinguishing 

bottle might cause the extinguishing 

agent to be discharged toward the 

unselected engine when the system is 

activated, rather than toward the engine 

with the fire. This AD requires 

determining if each engine has the 

proper outlet end on the electrical 

receptacle/connector that attaches the 

firing cartridge to the fire extinguisher 

bottle, and if not, replacing the fire 

extinguisher bottle. This AD is intended 

to prevent the fire extinguishing agent 

from not discharging toward the engine 

with the fire, which could result in loss 

of the helicopter due to an engine fire. 

DATES: This AD becomes effective on 

September 9, 2009. 

The incorporation by reference of 

certain publications is approved by the 

Director of the Federal Register as of 

September 9, 2009. 

ADDRESSES: You may examine the AD 

docket on the Internet at http:// 

regulations.gov or in person at the 

Docket Operations office, U.S. 

Department of Transportation, 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. 

You may get the service information 

identified in this AD from Agusta, Via 

Giovanni Agusta, 520 21017 Cascina 

Costa di Samarate (VA), Italy, telephone 

39 0331–229111, fax 39 0331–229605/ 

222595, or at http:// 

customersupport.agusta.com/ 

technical_advice.php. 

Examining The AD Docket: The AD 

docket contains the Notice of proposed 

rulemaking (NPRM), the economic 

evaluation, any comments received, and 

other information. The street address 

and operating hours for the Docket 

Operations office (telephone (800) 647– 

5527) are in the ADDRESSES section of 

this AD. Comments will be available in 

the AD docket shortly after they are 

received. 

FOR FURTHER INFORMATION CONTACT: John 

Strasburger, Aviation Safety Engineer 

FAA, Rotorcraft Directorate, Regulations 

and Policy Group, 2601 Meacham Blvd., 

Fort Worth, Texas 76137; telephone 

(817) 222–5167; fax (817) 222–5961. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued an NPRM to amend 14 CFR 

part 39 to include an AD that would 

apply to Agusta Model AB139 and 

AW139 helicopters on February 19, 

2009. That NPRM was published in the 

Federal Register on March 9, 2009 (74 

FR 9971). That NPRM proposed to 

require determining if each engine has 

the proper outlet end on the electrical 

receptacle/connector that attaches the 

firing cartridge to the fire extinguisher 

bottle, and if not, replacing the fire 

extinguisher bottle. The proposed AD 


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38900 Federal Register / Vol. 74, No. 149 / Wednesday, August 5, 2009 / Rules and Regulations 

actions are intended to prevent the fire 

extinguishing agent from not 

discharging toward the engine with the 

fire, which could result in loss of the 

helicopter due to an engine fire. You 

may obtain further information by 

examining the MCAI and any related 

service information in the AD docket. 

Comments 

By publishing the NPRM, we gave the 

public an opportunity to participate in 

developing this AD. However, we 

received no comment on the NPRM or 

on our determination of the cost to the 

public. Therefore, based on our review 

and evaluation of the available data, we 

have determined that air safety and the 

public interest require adopting the AD 

as proposed. 

Relevant Service Information 

Agusta has issued Bollettino Tecnico 

No. 139–085, dated May 18, 2007. The 

actions described in the MCAI are 

intended to correct the same unsafe 

condition as that identified in the 

service information. 

Differences Between This AD and the 

MCAI AD 

We have reviewed the MCAI AD and 

related service information and, in 

general, agree with their substance. 

However, our AD differs from the MCAI 

AD to clarify the unsafe condition and 

compliance instructions. In making 

these changes, we do not intend to differ 

substantively from the information 

provided in the MCAI and related 

service information. These differences 

are highlighted in the ‘‘Differences 

Between the FAA AD and the MCAI 

AD’’ section in the AD. 

Costs of Compliance 

We estimate that this AD will affect 

about 20 helicopters of U.S. registry and 

that it will take about 1 work-hour per 

helicopter to verify the correct 

installation of electrical receptacles/ 

connectors on the two fire extinguisher 

bottles. We also estimate that it will take 

about 3 work-hours per helicopter to 

replace a fire extinguisher bottle with 

the inverted electrical receptacles/ 

connectors and that about 5% (2 bottles) 

of the fire extinguisher bottles in the 

fleet will have to be replaced. The 

average labor rate is $80 per work hour. 

The cost of a replacement fire 

extinguisher bottle is $10,300. Based on 

these figures, we estimate the cost of 

this AD on U.S. operators to be $22,680. 

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 

product(s) identified in this rulemaking 

action. 

Regulatory Findings 

We determined that this AD will not 

have federalism implications under 

Executive Order 13132. This AD will 

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. 

Therefore, I certify this AD: 

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 an economic evaluation 

of the estimated costs to comply with 

this 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. 

Adoption of the Amendment 

■ Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 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: 

Effective Date 

2009–15–14 Agusta S.p.A.: Amendment 39– 

15977; Docket No. FAA–2009–0168; 

Directorate Identifier 2007–SW–33–AD. 

(a) This airworthiness directive (AD) 

becomes effective on September 9, 2009. 

Other Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Model AB139 

helicopters, serial number (S/N) 31005 

through 31054, except S/N 31007, and 

AW139 helicopters, S/N 31055 through 

31067, S/N 31070, and S/N 31071, 

certificated in any category. 

Reason 

(d) The mandatory continuing 

airworthiness information (MCAI) states that 

during the installation of a fire extinguisher 

bottle, part number 3G2620V00131, on a 

helicopter during manufacture, it was found 

that the electrical receptacle/connectors on 

the bottle which commands the firing of the 

extinguishing agent were swapped between 

engines No. 1 and No. 2. This condition 

could affect helicopters already in service 

and fire extinguisher bottles of the same part 

number in stock as spare parts. If not 

corrected, an improperly wired fire 

extinguishing bottle might cause the 

extinguishing agent to be discharged toward 

the unselected engine when the system is 

activated, rather than toward the engine with 

the fire. This AD requires determining if each 

engine has the proper outlet end on the 

electrical receptacle/connector that attaches 

the firing cartridge to the fire extinguisher 

bottle, and if not, replacing the fire 

extinguisher bottle. This AD is intended to 

prevent the fire extinguishing agent from not 

discharging toward the engine with the fire, 

which could result in loss of the helicopter 

due to an engine fire. 

Actions and Compliance 

(e) Within 100 hours time-in-service (TIS) 

or 3 months, whichever occurs first, unless 

already done, do the following actions. 

(1) Determine whether the fire 

extinguishing bottle (bottle) for engines No. 

1 and No. 2 have the proper outlet end on 

the electrical receptacle/connector, which 

attaches the firing cartridge to the bottle, by 

following steps 4. and 5. of the Compliance 

Instructions in Agusta Bollettino Tecnico No. 

139–085, dated May 18, 2007 (BT). 

(2) If a bottle has an electrical receptacle/ 

connector for the firing cartridge with an 

improper outlet end, before further flight, 

replace the bottle with a bottle that has an 

electrical receptacle/connector with a proper 

outlet end in accordance with step 6. of the 

Compliance Instructions in the BT. 

Differences Between This AD and the MCAI 

AD 

(f) This AD uses the term ‘‘hours time-inservice’’ rather than ‘‘flight hours.’’ 

Other Information 

(g) Alternative Methods of Compliance 

(AMOCs): The Manager, Safety Management 

Group, Rotorcraft Directorate, FAA, ATTN: 

John Strasburger, Aviation Safety Engineer, 


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Federal Register / Vol. 74, No. 149 / Wednesday, August 5, 2009 / Rules and Regulations 38901 

FAA, Rotorcraft Directorate, Regulations and 

Policy Group, 2601 Meacham Blvd., Fort 

Worth, Texas 76137; telephone (817) 222– 

5167; fax (817) 222–5961, has the authority 

to approve AMOCs for this AD, if requested 

using the procedures found in 14 CFR 39.19. 

Related Information 

(h) MCAI Ente Nazionale Per L’Aviazione 

Civile Airworthiness Directive No. 2007–227, 

dated June 18, 2007, contains related 

information. 

Joint Aircraft System/Component (JASC) 

Code 

(i) JASC Code 2621: Fire Bottle, Fixed. 

Material Incorporated by Reference 

(j) You must use the specified portions of 

Agusta Bollettino Tecnico No. 139–085, 

dated May 18, 2007 to do the actions 

required. 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

this service information under 5 U.S.C. 

552(a) and 1 CFR part 51. 

(2) For service information identified in 

this AD, contact Agusta, Via Giovanni 

Agusta, 520 21017 Cascina Costa di Samarate 

(VA), Italy, telephone 39 0331–229111, fax 39 

0331–229605/222595, or at http:// 

customersupport.agusta.com/ 

technical_advice.php. 

(3) You may review copies at the FAA, 

Office of the Regional Counsel, Southwest 

Region, 2601 Meacham Blvd., Room 663, Fort 

Worth, Texas; or at the National Archives 

and Records Administration (NARA). For 

information on the availability of this 

material at NARA, call (202) 741–6030, or go 

to: http://www.archives.gov/federal-register/ 

cfr/ibr-locations.html. 

Issued in Fort Worth, Texas, on July 10, 

2009. 

Larry M. Kelly, 

Acting Manager, Rotorcraft Directorate, 

Aircraft Certification Service. 

[FR Doc. E9–18430 Filed 8–4–09; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2008–1213; Directorate 

Identifier 2007–NM–092–AD; Amendment 

39–15987; AD 2009–16–14] 

RIN 2120–AA64 

Airworthiness Directives; Boeing 

Model 737–100, –200, –200C, –300, 

–400, and –500 Series Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: The FAA is superseding an 

existing airworthiness directive (AD) 

that applies to certain Boeing Model 

737–100, –200, –200C, –300, –400, and 

–500 series airplanes. That AD currently 

requires repetitive inspections of the 

intercostal webs, attachment clips, and 

stringer splice channels for cracks; and 

corrective action if necessary. This new 

AD reduces the repetitive inspection 

intervals from 25,000 flight cycles to 

6,000 flight cycles, and expands the 

inspection area for Model 737–200C 

series airplanes to include the area aft 

of the forward entry door. This AD 

results from additional reports of fatigue 

cracks. We are issuing this AD to detect 

and correct fatigue cracking of the 

intercostals on the forward and aft sides 

of the forward entry door, which could 

result in loss of the forward entry door 

and rapid decompression of the 

airplane. 

DATES: This AD becomes effective 

September 9, 2009. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in the AD 

as of September 9, 2009. 

ADDRESSES: For service information 

identified in this AD, contact Boeing 

Commercial Airplanes, Attention: Data 

& Services Management, P.O. Box 3707, 

MC 2H–65, Seattle, Washington 98124– 

2207; telephone 206–544–5000, 

extension 1; fax 206–766–5680; e-mail 

me.boecom@boeing.com; Internet 

https://www.myboeingfleet.com. 

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 AD, the regulatory 

evaluation, any comments received, and 

other information. The address for the 

Docket Office (telephone 800–647–5527) 

is the Document Management Facility, 

U.S. Department of Transportation, 

Docket Operations, M–30, West 

Building Ground Floor, Room W12–140, 

1200 New Jersey Avenue, SE., 

Washington, DC 20590. 

FOR FURTHER INFORMATION CONTACT: 

Alan Pohl, Aerospace Engineer, 

Airframe Branch, ANM–120S, FAA, 

Seattle Aircraft Certification Office, 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 917–6450; fax (425) 917–6590. 

SUPPLEMENTARY INFORMATION: 

Discussion 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that 

supersedes AD 2005–20–03, amendment 

39–14296 (70 FR 56361, September 27, 

2005). The existing AD applies to 

certain Boeing Model 737–100, –200, 

–200C, –300, –400, and –500 series 

airplanes. That NPRM was published in 

the Federal Register on November 17, 

2008 (73 FR 67815). That NPRM 

proposed to continue to require 

repetitive inspections of the intercostal 

webs, attachment clips, and stringer 

splice channels for cracks, at repetitive 

inspection intervals reduced from 

25,000 flight cycles to 6,000 flight 

cycles; and corrective action if 

necessary. That NPRM also proposed to 

expand the inspection area for Model 

737–200C series airplanes to include the 

area aft of the forward entry door. 

Comments 

We provided the public the 

opportunity to participate in the 

development of this AD. We have 

considered the comments that have 

been received on the NPRM. 

Request to Increase Grace Period 

US Airways requests that we increase 

the threshold grace period from 3,000 

flight cycles after the effective date of 

this AD to 4,500 flight cycles. US 

Airways states that the new grace period 

it requests would allow operators to 

schedule more airplanes into 

appropriate maintenance tasks. US 

Airways explains that the inspection 

would affect its operation by requiring 

additional maintenance that is not 

presently scheduled. 

We do not agree with the commenter’s 

request. In developing an appropriate 

compliance time for this AD, we 

considered not only the safety 

implications, but the manufacturer’s 

recommendations, and the practical 

aspect of accomplishing the 

modification within an interval of time 

that corresponds to typical scheduled 

maintenance for affected operators. 

However, under the provisions of 

paragraph (m) of this AD, we may 

consider requests for adjustments to the 

compliance time if data are submitted to 

substantiate that such an adjustment 

would provide an acceptable level of 

safety. We have not changed this AD in 

this regard. 

Explanation of Additional Changes to 

the AD 

We have clarified paragraphs (h), (i), 

and (l) of this AD to include the full 

citation for the service information 

referenced in those paragraphs. We 

made this change to ensure that it is 

clear which service information 

operators must use for a specific action. 

We have changed paragraph (j) of this 

AD to remove the reference to ‘‘Part 4 

of the Work Instructions of Boeing 


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