14808 Federal Register / Vol. 80, No. 54 / Friday, March 20, 2015 / Rules and Regulations 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2014–1093; Directorate 

Identifier 2014–CE–035–AD; Amendment 

39–18119; AD 2015–06–01] 

RIN 2120–AA64 

Airworthiness Directives; British 

Aerospace Regional Aircraft Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are superseding an 

airworthiness directive (AD) 2014–06– 

03 for British Aerospace Regional 

Aircraft Model Jetstream Series 3101 

and Jetstream Model 3201 airplanes. 

This AD results from mandatory 

continuing airworthiness information 

(MCAI) issued by an aviation authority 

of another country to identify and 

correct an unsafe condition on an 

aviation product. The MCAI describes 

the unsafe condition as stress corrosion 

cracking of the main landing gear spigot 

housing. We are issuing this AD to 

require actions to address the unsafe 

condition on these products. 

DATES: This AD is effective April 24, 

2015. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of April 24, 2015. 

ADDRESSES: You may examine the AD 

docket on the Internet at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2014– 

1093; or in person at the Docket 

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 service information identified in 

this AD, contact BAE Systems 

(Operations) Ltd, Customer Information 

Department, Prestwick International 

Airport, Ayrshire, KA9 2RW, Scotland, 

United Kingdom; phone: +44 1292 

675207, fax: +44 1292 675704; email: 

RApublications@baesystems.com; 

Internet: http://

www.jetstreamcentral.com. You may 

view this 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. It is also available 

on the Internet at http://

www.regulations.gov by searching for 

locating Docket No. FAA–2014–1093. 

FOR FURTHER INFORMATION CONTACT: 

Taylor Martin, Aerospace Engineer, 901 

Locust, Room 301, Kansas City, 

Missouri 64106; telephone: (816) 329– 

4138; fax: (816) 329–4090; email: 

taylor.martin@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to add an AD that would apply 

to British Aerospace Regional Aircraft 

Model Jetstream Series 3101 and 

Jetstream Model 3201 airplanes. That 

NPRM was published in the Federal 

Register on December 31, 2014 (79 FR 

78726), and proposed to supersede AD 

2014–06–03, Amendment 39–17807 (79 

FR 17395, March 28, 2014). 

The NPRM proposed to correct an 

unsafe condition for the specified 

products and was based on mandatory 

continuing airworthiness information 

(MCAI) originated by an aviation 

authority of another country. The MCAI 

states that: 

Several cases of stress corrosion cracking of 

DTD 5094 standard Main Landing Gear 

(MLG) cylinders have been reported on 

Jetstream Series 3200 and 3100 aeroplanes. 

Prompted by these findings, The United 

Kingdom (UK) Civil Aviation Authority 

(CAA) issued AD 003–01–86 to require visual 

and non-destructive testing (NDT) 

inspections of the MLG assembly cylinder 

attachment spigot housing in accordance 

with BAE Systems (Operations) Ltd SB 32– 

A–JA851226. In 2012 an additional 

occurrence of Jetstream 3100 MLG failure 

after landing was reported, the subsequent 

investigation revealed stress corrosion 

cracking of the yoke pintle housing as a root 

cause of the MLG failure. Consequently 

EASA issued EASA AD 2013–0208 to require 

inspection of the MLG in accordance with 

BAE Systems (Operations) Ltd SB 32–A– 

JA851226 Revision 5 or later approved 

revisions to detect any crack, however, SB 

32–A–JA851226 did not apply to aeroplanes 

equipped with MLG cylinders manufactured 

from L161 material, since that is not 

susceptible to stress corrosion, BAE Systems 

(Operations) Ltd issued SB 32–JM7862 to 

address degradation of the surface protection 

by placing a special washer over the forward 

face of the MLG spigot housing, which 

rotates with the spigot housing. EASA issued 

AD 2013–0206 to require modification of the 

left (LH) and right hand (RH) MLG in 

accordance with this SB. 

In 2014 a further event was reported, 

where the LH MLG of a Jetstream 3100 

aeroplane collapsed during landing, this 

resulted in the aeroplane departing from the 

runway. The accident is still under 

investigation by the UK Air Accident 

Investigation Branch. Preliminary results of 

the investigation determined that cracking, 

which caused the MLG collapse, was 

initiated from a corrosion pit at the top outer 

edge of the forward spigot housing and 

extended along the top of the spigot housing. 

The spigot housing material was DTD 5094. 

The affected LH MLG had been modified in 

accordance with BAE Systems (Operations) 

Ltd SB 32–JM7862 Revision 1. Further 

investigation discovered that the instructions 

provided in BAE Systems (Operations) Ltd 

SB 32–JM7862 Revision 1 did not effectively 

prevent stress corrosion cracking because, 

under certain circumstances, it allows the 

rotation of the special washer and 

consequent damage of the end face of the 

spigot housing. 

This condition, if not corrected, could lead 

to structural failure of the MLG, possibly 

resulting in loss of control of the aeroplane 

during take-off or landing runs. 

To address this potential unsafe condition, 

BAE Systems (Operations) Ltd issued SB 32– 

JM7862 Revision 2 to clarify the orientation 

of the spigot bearing cap, later revised to SB 

32–JM7862 Revision 3 to ensure the spigot 

bearing cap is correctly positioned. 

Additionally, BAE Systems (Operations) Ltd 

issued SB 32–A–JA140940 to provide 

inspection instructions to detect migration of 

the special washer and any potential 

corrosion resulting from that unwanted 

migration for MLG installations modified 

earlier in accordance with BAE Systems 

(Operations) Ltd SB 32–JM7862 up to 

Revision 2. 

For the reasons described above, this AD 

partially retains the requirements of EASA 

AD 2013–0206, which is superseded, and 

requires a one-time inspection of pre-SB 32– 

JM7862 Revision 3 MLG installations and, 

depending on findings, applicable corrective 

action(s). 

The MCAI can be found in the AD 

docket on the Internet at: http://

www.regulations.gov/

#!documentDetail;D=FAA-2014-1093- 

0002. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

received no comments on the NPRM (79 

FR 78726, December 31, 2014) or on the 

determination of the cost to the public. 

Conclusion 

We reviewed the relevant data and 

determined that air safety and the 

public interest require adopting the AD 

as proposed except for minor editorial 

changes. We have determined that these 

minor changes: 

• Are consistent with the intent that 

was proposed in the NPRM (79 FR 

78726, December 31, 2014) for 

correcting the unsafe condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the NPRM (79 FR 78726, 

December 31, 2014). 

Related Service Information Under 1 

CFR Part 51 

We reviewed British Aerospace 

Jetstream Series 3100 and 3200 Service 

Bulletin No. 32–JM7862, Revision 3, 

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Federal Register / Vol. 80, No. 54 / Friday, March 20, 2015 / Rules and Regulations 14809 

dated October 3, 2014; and British 

Aerospace Jetstream Series 3100 and 

3200 Service Bulletin No. 32–A– 

JA140940, Original Issue, dated October 

3, 2014. The service information 

describes procedures for modifying the 

LH and RH MLG at the forward spigot 

and inspecting for migration of the 

special washer, taking corrective action 

as necessary. This service information is 

reasonably available; see ADDRESSES for 

ways to access this service information. 

Costs of Compliance 

We estimate that this AD will affect 

44 products of U.S. registry. We also 

estimate that it will take about 2 workhours per product to comply with the 

basic requirements of this AD. The 

average labor rate is $85 per work-hour. 

Required parts will cost about $170 per 

product. 

Based on these figures, we estimate 

the cost of this AD to the U.S. operators 

to be $14,960, or $340 per product. 

We accept modification of the MLG, 

if done before the effective date of this 

AD, using earlier versions of the service 

information. However, the earlier 

versions of the service information 

require additional inspections with 

possible corrective actions. 

In addition, we estimate that any 

necessary follow-on actions that may be 

required if using an earlier version of 

the service information would take 

about 1 work-hour to inspect for special 

washer migration and corrosion damage 

and require parts costing $100 for 

replacement of the special washer and 

application of witness paint, if 

necessary, for a cost of $185 per 

product. We have no way of 

determining the number of products 

that may need these actions. 

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 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. 

For the reasons discussed above, 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), 

(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. 

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–2014– 

1093; 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 the NPRM, 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. 

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 

removing Amendment 39–17807 (79 FR 

17395, March 28, 2014) and adding the 

following new AD: 

2015–06–01 British Aerospace Regional 

Aircraft: Amendment 39–18119; Docket 

No. FAA–2014–1093; Directorate 

Identifier 2014–CE–035–AD. 

(a) Effective Date 

This airworthiness directive (AD) becomes 

effective April 24, 2015. 

(b) Affected ADs 

This AD supersedes AD 2014–06–03, 

Amendment 39–17806 (79 FR 17395; March 

28, 2014). 

(c) Applicability 

This AD applies to British Aerospace 

Regional Aircraft Jetstream Series 3101 and 

Jetstream Model 3201 airplanes, all serial 

numbers, certificated in any category. 

(d) Subject 

Air Transport Association of America 

(ATA) Code 32: Landing Gear. 

(e) Reason 

This AD was prompted by 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 MCAI 

describes the unsafe condition as stress 

corrosion cracking of the main landing gear 

(MLG) spigot housing. We are issuing this AD 

to prevent corrosion cracking of the MLG 

spigot housing. This condition, if not 

corrected, could cause structural failure of 

the MLG resulting in loss of control of the 

airplane during take-off or landing. 

(f) Actions and Compliance 

Unless already done, do the following 

actions in paragraphs (f)(1) through (f)(11) of 

this AD, including all subparagraphs, as 

applicable. 

(1) At the next scheduled MLG removal, 

modify the installation of the left hand (LH) 

and right hand (RH) MLG at the forward 

spigot following British Aerospace Jetstream 

Series 3100 and 3200 Service Bulletin No. 

32–JM7862, Revision 3, dated October 3, 

2014. 

Note to paragraph (f)(1) of this AD: The 

next scheduled MLG removal may be for 

non-destructive testing or overhaul, as 

applicable. 

(2) If done before April 24, 2015 (the 

effective date of this AD), we will accept 

modification of the LH or RG MLG following 

British Aerospace Jetstream Series 3100 & 

3200 Service Bulletin SB 32–JM7862, 

Revision 2, dated June 13, 2014; or British 

Aerospace Jetstream Series 3100 & 3200 

Service Bulletin 32–JM7862, Revision 1, 

dated May 7, 2013, for compliance with 

paragraph (f)(1) of this AD. 

(3) For airplanes that, before April 24, 2015 

(the effective date of this AD), have been 

modified following British Aerospace 

Jetstream Series 3100 & 3200 Service Bulletin 

32–JM7862, Revision 2, dated June 13, 2014, 

visually inspect the LH and RH MLG to 

detect migration of a special washer 

following the instructions in Part 1 of British 

Aerospace Jetstream Series 3100 & 3200 

Service Bulletin 32–A–JA140940, Original 

Issue, dated October 3, 2014, at the 

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14810 Federal Register / Vol. 80, No. 54 / Friday, March 20, 2015 / Rules and Regulations 

compliance time listed in paragraph (f)(3)(i) 

or (f)(3)(ii) of this AD, as applicable. 

(i) For MLG configuration equipped with 

DTD5094 cylinder: Within the next 200 flight 

cycles after April 24, 2015 (the effective date 

of this AD) or within the next 2 months after 

the effective date of this AD, whichever 

occurs first. 

(ii) For MLG configuration equipped with 

L161 cylinder: Within the next 600 flight 

cycles after April 24, 2015 (the effective date 

of this AD) or within the next 6 months after 

April 24, 2015 (the effective date of this AD), 

whichever occurs first. 

(4) If evidence of migration of the special 

washer was detected during the inspection 

required in paragraph (f)(3) of this AD, 

within the applicable compliance time 

specified in paragraph (f)(3)(i) or (f)(3)(ii) of 

this AD, do the corrective actions on the LH 

or RH MLG, as applicable, following Part 2 

of British Aerospace Jetstream Series 3100 & 

3200 Service Bulletin 32–A–JA140940, 

Original Issue, dated October 3, 2014. 

(5) If no evidence of migration of the 

special washer was detected during the 

inspection required in paragraph (f)(3) of this 

AD, before further flight, apply a witness 

paint over the special washer tab and onto 

the MLG spigot housing (LH and RH MLG) 

following Part 1 of British Aerospace 

Jetstream Series 3100 & 3200 Service Bulletin 

32–A–JA140940, Original Issue, dated 

October 3, 2014. 

(6) For airplanes that, before April 24, 2015 

(the effective date of this AD), have been 

modified following British Aerospace 

Jetstream Series 3100 & 3200 Service Bulletin 

32–JM7862, Revision 1, dated May 7, 2013, 

do all of the actions on the MLG cylinder (LH 

and/or RH, as applicable) following the 

instructions in Part 2 of British Aerospace 

Jetstream Series 3100 & 3200 Service Bulletin 

32–A–JA140940, Original Issue, dated 

October 3, 2014, at the compliance time 

listed in paragraph (f)(6)(i) or (f)(6)(ii), as 

applicable. 

(i) For MLG configuration equipped with 

DTD5094 cylinder: Within the next 200 flight 

cycles after April 24, 2015 (the effective date 

of this AD) or within the next 2 months after 

April 24, 2015 (the effective date of this AD), 

whichever occurs first. 

(ii) For MLG configuration equipped with 

L161 cylinder: Within the next 600 flight 

cycles after April 24, 2015 (the effective date 

of this AD) or within the next 6 months after 

April 24, 2015 (the effective date of this AD), 

whichever occurs first. 

(7) If any wear, corrosion, or damage is 

detected during the inspection required in 

either paragraph (f)(3) or (f)(6), as applicable, 

of this AD, before further flight, do all of the 

corrective actions (including application of 

the a witness paint) following the 

instructions in Part 2 of British Aerospace 

Jetstream Series 3100 & 3200 Service Bulletin 

32–A–JA140940, Original Issue, dated 

October 3, 2014. 

(8) Between 30 and 45 days after doing the 

action required in either paragraph (f)(3) or 

(f)(6) of this AD or between the next 20 to 

30 flight cycles after doing the action 

required in either paragraph (f)(3) or (f)(6) of 

this AD, whichever occurs first, inspect the 

witness paint applied as required in either 

paragraph (f)(5) or (f)(7) of this AD following 

the instructions in Part 3 of British Aerospace 

Jetstream Series 3100 & 3200 Service Bulletin 

32–A–JA140940, Original Issue, dated 

October 3, 2014. 

(9) If any damaged paint is detected during 

the inspection required in paragraph (f)(8) of 

this AD, before further flight, contact British 

Aerospace Regional Aircraft to obtain FAAapproved repair instructions approved 

specifically for this AD and incorporate those 

instructions. You may find the contact 

information for British Aerospace Regional 

Aircraft in paragraph (h) of this AD. 

(10) As of April 24, 2015 (the effective date 

of this AD), do not install a LH or RH MLG 

on any of the applicable airplanes unless it 

has passed all of the inspections required by 

this AD. 

(11) For all airplanes: The compliance 

times for paragraphs (f)(3)(i), (f)(3)(ii), 

(f)(6)(i), (f)(6)(ii), and (f)(8) of this AD are 

presented in flight cycles (landings). If the 

total flight cycles have not been kept, 

multiply the total number of airplane hours 

time-in-service (TIS) by 0.75 to calculate the 

cycles. You may use the following as an 

example for this AD: 

(i) 200 hours TIS × .75 = 150 cycles; or 

(ii) 600 hours TIS × .75 = 450 cycles. 

(g) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, Standards Office, 

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: Taylor Martin, Aerospace Engineer, 

FAA, Small Airplane Directorate, 901 Locust, 

Room 301, Kansas City, Missouri 64106; 

telephone: (816) 329–4138; fax: (816) 329– 

4090; email: taylor.martin@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. 

(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. 

(h) Related Information 

Refer to MCAI found in the European 

Aviation Safety Agency (EASA), which is the 

Technical Agent for the Member States of the 

European Community, AD No. 2014–0239, 

dated November 3, 2014; and British 

Aerospace Jetstream Series 3100 & 3200 

Service Bulletin SB 32–JA851226, Revision 5, 

dated April 30, 2013; British Aerospace 

Jetstream and British Aerospace Jetstream 

Series 3100 & 3200 Service Bulletin 32– 

JM7862, Revision 1, dated May 7, 2013, for 

related information. The MCAI can be found 

in the AD docket on the Internet at http://

www.regulations.gov/

#!documentDetail;D=FAA-2014-1093-0002. 

(i) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) British Aerospace Jetstream Series 3100 

and 3200 Service Bulletin No. 32–JM7862, 

Revision 3, dated October 3, 2014. 

(ii) British Aerospace Jetstream Series 3100 

& 3200 Service Bulletin 32–A–JA140940, 

Original Issue, dated October 3, 2014. 

(3) For service information identified in 

this AD, contact BAE Systems (Operations) 

Ltd, Customer Information Department, 

Prestwick International Airport, Ayrshire, 

KA9 2RW, Scotland, United Kingdom; 

phone: +44 1292 675207, fax: +44 1292 

675704; email: RApublications@

baesystems.com; Internet: http://

www.jetstreamcentral.com. 

(4) You may view this service information 

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. In 

addition, you can access this service 

information on the Internet at http://

www.regulations.gov by searching for and 

locating Docket No. FAA–2014–1093. 

(5) You may view this service information 

that is incorporated by reference 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 Kansas City, Missouri, on March 

10, 2015. 

Pat Mullen, 

Acting Manager, Small Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2015–06053 Filed 3–19–15; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2014–1123; Directorate 

Identifier 2014–CE–037–AD; Amendment 

39–18120; AD 2015–06–02] 

RIN 2120–AA64 

Airworthiness Directives; GA 8 Airvan 

(Pty) Ltd Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for GA 8 

Airvan (Pty) Ltd Model GA8–TC320 

airplanes. This AD results from 

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