Federal Register / Vol. 81, No. 245 / Wednesday, December 21, 2016 / Rules and Regulations 93585 

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 that 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. 

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 airworthiness 

directive (AD): 

2016–25–17 Saab AB, Saab Aeronautics 

(formerly known as Saab AB, Saab 

Aerosystems): Amendment 39–18743; 

Docket No. FAA–2016–9056; Directorate 

Identifier 2016–NM–007–AD. 

(a) Effective Date 

This AD is effective January 25, 2017. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to certain Saab AB, Saab 

Aeronautics (formerly known as Saab AB, 

Saab Aerosystems) Model SAAB 2000 

airplanes, certificated in any category, serial 

numbers 017, 019 through 021 inclusive, 027 

through 028 inclusive, 030, 034, 040, 050, 

and 052. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 38, Water/waste. 

(e) Reason 

This AD was prompted by an occurrence 

that was reported of rudder pedal restriction 

on a SAAB Model 2000 airplane with the 

large potable water system installed, 

equipped with in-line heaters. We are issuing 

this AD to prevent water spray in case of a 

failed pipe or coupling during water filling 

on the ground. This condition, if not 

corrected, could freeze parts of the flight 

control system, possibly resulting in reduced 

control of the airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Repair of Basic Potable Water System 

(BPWS) 

Within 24 months after the effective date 

of this AD, install shrinkable tubes on the 

water piping of the BPWS, in accordance 

with the Accomplishment Instructions of 

SAAB Service Bulletin 2000–38–012, dated 

August 20, 2015. 

(h) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Branch, ANM–116, Transport Airplane 

Directorate, 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 International Branch, send it to ATTN: 

Shahram Daneshmandi, Aerospace Engineer, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA, 1601 Lind 

Avenue SW., Renton, WA 98057–3356; 

telephone 425–227–1112; fax 425–227–1149. 

Information may be emailed to: 9-ANM-116- 

AMOC-REQUESTS@faa.gov. 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. 

(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, International Branch, ANM– 

116, Transport Airplane Directorate, FAA; or 

the European Aviation Safety Agency 

(EASA); or Saab AB, Saab Aeronautics’ EASA 

Design Organization Approval (DOA). If 

approved by the DOA, the approval must 

include the DOA-authorized signature. 

(i) Related Information 

Refer to Mandatory Continuing 

Airworthiness Information (MCAI) EASA 

Airworthiness Directive 2016–0013, dated 

January 14, 2016, for related information. 

This MCAI may be found in the AD docket 

on the Internet at http://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2016–9056. 

(j) 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 this AD specifies otherwise. 

(i) SAAB Service Bulletin 2000–38–012, 

dated August 20, 2015. 

(ii) Reserved. 

(3) For service information identified in 

this AD, contact Saab AB, Saab Aeronautics, 

SE–581 88, Linko ̈ping, Sweden; telephone 

+46 13 18 5591; fax +46 13 18 4874; email 

saab2000.techsupport@saabgroup.com; 

Internet http://www.saabgroup.com. 

(4) 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. 

(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 Renton, Washington, on 

December 1, 2016. 

Michael Kaszycki, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2016–29509 Filed 12–20–16; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2015–5816; Directorate 

Identifier 2015–NM–029–AD; Amendment 

39–18731; AD 2016–25–05] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for all The 

Boeing Company Model 747–100, 747– 

100B, 747–100B SUD, 747–200B, 747– 

200C, 747–200F, 747–300, 747–400, 

747–400D, 747–400F, 747SR, and 747SP 

series airplanes. This AD was prompted 

by reports of cracking found in the 

splice plates, hinge fittings, terminal 

fittings, the upper skin of the outboard 


asabaliauskas on DSK3SPTVN1PROD with RULES
93586 Federal Register / Vol. 81, No. 245 / Wednesday, December 21, 2016 / Rules and Regulations 

and center sections, upper chord, and 

rear spar webs before reaching the 

inspection interval specified in AD 

2006–10–16. Cracked and fractured 

Maraging steel fasteners were also 

found. This AD requires repetitive 

inspections for cracking, an inspection 

to determine whether fasteners are 

magnetic, repetitive ultrasonic 

inspections for cracking and fractures of 

affected fasteners, and related 

investigative and corrective actions if 

necessary. We are issuing this AD to 

address the unsafe condition on these 

products. 

DATES: This AD is effective January 25, 

2017. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of January 25, 2017. 

ADDRESSES: For service information 

identified in this final rule, contact 

Boeing Commercial Airplanes, 

Attention: Data & Services Management, 

P.O. Box 3707, MC 2H–65, Seattle, WA 

98124–2207; telephone: 206–544–5000, 

extension 1; fax: 206–766–5680; Internet 

https://www.myboeingfleet.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. It is also 

available on the Internet at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2015– 

5816. 

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–2015– 

5816; 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 (phone: 800–647–5527) is 

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 FURTHER INFORMATION CONTACT: 

Nathan Weigand, Aerospace Engineer, 

Airframe Branch, ANM–120S, FAA, 

Seattle Aircraft Certification Office 

(ACO), 1601 Lind Avenue SW., Renton, 

WA 98057–3356; phone: 425–917–6428; 

fax: 425–917–6590; email: 

nathan.p.weigand@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to supersede AD 2006–10–16, 

Amendment 39–14600 (71 FR 28570, 

May 17, 2006) (‘‘AD 2006–10–16’’). AD 

2006–10–16 applies to all The Boeing 

Company Model 747–100, 747–100B, 

747–100B SUD, 747–200B, 747–200C, 

747–200F, 747–300, 747–400, 747– 

400D, 747–400F, 747SR, and 747SP 

series airplanes. The NPRM published 

in the Federal Register on November 27, 

2015 (80 FR 74052) (‘‘the NPRM’’). The 

NPRM was prompted by reports of 

cracking found in the splice plates, 

hinge fittings, terminal fittings, the 

upper skin of the outboard and center 

sections, upper chord, and rear spar 

webs before reaching the inspection 

interval specified in AD 2006–10–16. 

Cracked and fractured Maraging steel 

fasteners were also found. The NPRM 

proposed to reduce the compliance time 

for certain inspections and add 

repetitive inspections for cracking of the 

splice plates, hinge fittings, terminal 

fittings, upper skin of the outboard and 

center sections, and rear spar webs in 

Zone B. The NPRM also proposed to 

require an inspection to determine 

whether fasteners are magnetic in Zone 

C, repetitive ultrasonic inspections for 

cracking and fractures of affected 

fasteners, and related investigative and 

corrective actions if necessary. The 

NPRM also added an optional 

modification, which would terminate 

certain repetitive inspections, provided 

post-modification inspections and 

corrective action are done if necessary. 

We are issuing this AD to detect and 

correct this cracking, which could lead 

to reduced structural capability of the 

outboard and center sections of the 

horizontal stabilizer and could result in 

loss of control of the airplane. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comments 

received on the NPRM and the FAA’s 

response to each comment. 

Request To Clarify Inspections 

Atlas Airlines, United Airlines, and 

The Boeing Company requested that we 

clarify the inspection required by the 

proposed AD. Atlas Airlines stated that 

the ‘‘Proposed AD Requirements’’ 

paragraph of the NPRM states that the 

proposed AD would retain all the 

requirements of AD 2006–10–16. Atlas 

Airlines also stated that paragraph (f) of 

AD 2006–10–16 is not included in the 

proposed AD and noted that paragraph 

(g)(3) of the proposed AD identifies only 

Groups 7 through 9 as the applicable 

groups for the Zone A inspections. Atlas 

Airlines asked for clarification of the 

Zone A inspections. 

Boeing noted that AD 2006–10–16 

includes Zone C inspections as 

specified in Part 5 of Boeing Service 

Bulletin 747–55A2050, Revision 1, 

dated May 1, 2003, and included Zone 

A inspections for Groups 1 through 6. 

Boeing noted that these inspections 

have not been removed by Boeing 

Service Bulletin 747–55A2050, Revision 

2, dated January 23, 2015. Boeing also 

requested that we revise the proposed 

AD to address the Zone C inspections in 

Part 5 of Boeing Service Bulletin 747– 

55A2050, Revision 2, dated January 23, 

2015, and the Zone A inspections for 

Groups 1 through 6. 

United Airlines disagreed with not 

restating the requirements of AD 2006– 

10–16. United Airlines stated that 

operators might miss that Zone A 

inspections and Zone C, Part 5, 

inspections required by AD 2006–10–16 

are intended to be mandated. United 

Airlines noted that although the 

preamble of the NPRM stated that all 

inspections of AD 2006–10–16 are 

retained, paragraph (g) of the proposed 

AD only specifies new requirements and 

does not include certain Zone A 

inspections and Zone C, Part 5, 

inspections. 

We agree that clarification is 

necessary. As stated in the preamble to 

the NPRM, we intended to retain all 

requirements of AD 2006–10–16. 

However, the actions specified in the 

proposed AD do not include the 

inspections referred to by the 

commenters. We have determined that 

instead of including those actions in 

this final rule, we will issue this action 

as a stand-alone AD. Thus, AD 2006– 

10–16 is not superseded, making it clear 

that all actions in AD 2006–10–16 

continue to be required. In addition, we 

have revised this AD to specify when 

accomplishing certain actions in this 

AD terminates actions specified in AD 

2006–10–16. We have made the 

following changes: 

• Revised paragraph (g)(1) of this AD 

to specify that accomplishing a Zone B 

inspection required by paragraph (g)(1) 

of this AD terminates the inspections 

required by paragraph (g) of AD 2006– 

10–16 for the inspected area only. 

• Revised paragraph (g)(2) of this AD 

to specify that accomplishing a Zone B 

inspection required by paragraph (g)(2) 

of this AD terminates the inspections 

required by paragraph (i) of AD 2006– 

10–16 for the inspected area only. 

• Revised paragraph (g)(3) of this AD 

to specify that accomplishing Zone A 

and Zone B inspections required by 


asabaliauskas on DSK3SPTVN1PROD with RULES
Federal Register / Vol. 81, No. 245 / Wednesday, December 21, 2016 / Rules and Regulations 93587 

paragraph (g)(3) of this AD terminates 

the inspections required by paragraphs 

(f), (i), and (l) of AD 2006–10–16 for the 

inspected area only. 

• Added paragraph (i)(1)(iii) to this 

AD to clarify that accomplishing the 

actions specified in paragraph (i)(1) of 

this AD terminates inspections required 

by paragraph (g) of AD 2006–10–16 for 

Zone B, as specified in Part 3 of the 

Accomplishment Instructions of Boeing 

Service Bulletin 747–55A2050, Revision 

2, dated January 23, 2015, for the 

modified area only. 

• Added paragraph (i)(1)(iv) to this 

AD to clarify that accomplishing the 

actions specified in paragraph (i) of this 

AD terminates inspections required by 

paragraph (k) of AD 2006–10–16 for 

Zone C, as specified in Part 5 of the 

Accomplishment Instructions of Boeing 

Service Bulletin 747–55A2050, Revision 

2, dated January 23, 2015, for the 

modified area only. 

• Added paragraph (i)(2)(ii) of this 

AD to clarify that accomplishing the 

actions specified in paragraph (i)(2) of 

this AD terminates the repetitive 

inspections required by paragraph (k) of 

AD 2006–10–16 for Zone C, as specified 

in Part 5 of the Accomplishment 

Instructions of Boeing Service Bulletin 

747–55A2050, Revision 2, dated January 

23, 2015, for the inspected area only. 

• Added paragraph (i)(3)(ii) of this 

AD to clarify that accomplishing the 

actions specified in paragraph (i)(3) of 

this AD terminates the repetitive 

inspections required by paragraph (i) of 

AD 2006–10–16 for Zone B, as specified 

in Part 4 of the Accomplishment 

Instructions of Boeing Service Bulletin 

747–55A2050, Revision 2, dated January 

23, 2015, for the modified area only. 

Request To Update Terminating Action 

Language for Zone C Inspections 

Boeing requested that we revise 

paragraph (i)(2) of the proposed AD to 

clarify which Zone C inspections are 

terminated. Boeing noted that paragraph 

(i)(2) of the proposed AD specifies that 

the actions terminate Zone C 

inspections specified in Part 6 of Boeing 

Service Bulletin 747–55A2050, Revision 

2, dated January 23, 2015, and noted 

that Zone C inspections in Part 5 of 

Boeing Service Bulletin 747–55A2050, 

Revision 2, dated January 23, 2015, are 

also terminated. 

We agree to clarify the terminating 

action for the Zone C inspections, and 

have revised paragraph (i)(2) of this AD 

accordingly. 

Conclusion 

We reviewed the relevant data, 

considered the comments received, and 

determined that air safety and the 

public interest require adopting this AD 

with the change described previously 

and minor editorial changes. We have 

determined that these minor changes: 

• Are consistent with the intent that 

was proposed in the NPRM for 

correcting the unsafe condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the NPRM. 

We also determined that these 

changes will not increase the economic 

burden on any operator or increase the 

scope of this AD. 

Related Service Information Under 1 

CFR Part 51 

We reviewed Boeing Service Bulletin 

747–55A2050, Revision 2, dated January 

23, 2015. The service information 

describes procedures for accomplishing 

Zone A, Zone B, and Zone C inspections 

for cracking of the upper skin and upper 

rear spar chord of the outboard and 

center sections of the horizontal 

stabilizer, and related investigative and 

corrective actions if necessary. The 

service information also describes 

procedures for a magnetic inspection to 

determine the type of fasteners, 

ultrasonic inspections for cracking and 

fractures of affected fasteners, and 

related investigative and corrective 

actions if necessary. 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. 

Costs of Compliance 

We estimate that this AD affects 116 

airplanes of U.S. registry. 

We estimate the following costs to 

comply with this AD: 

ESTIMATED COSTS—REQUIRED ACTIONS

Action Labor cost Parts cost Cost per product Cost on U.S. 

operators 

Zone A Inspections (required by AD 

2006–10–16).

8 work-hours × $85 per hour = $680 ..... $0 $680 ....................... Up to $78,880. 

Zone B Open-hole nondestructive testing (NDT) Inspection (required by AD 

2006–10–16 for Groups 3, 4, and 5 

airplanes; and for Groups 1, 2, and 3 

airplanes, if done).

30 work-hours × $85 per hour = $2,550 0 2,550 ...................... Up to $295,800. 

Zone C Maraging or H–11 Steel Fastener Inspection (required by AD 

2006–10–16 for Groups 1, 2, and 3 

airplanes).

8 work-hours × $85 per hour = $680 ..... 0 680 ......................... Up to $78,880. 

New Zone B Inspections ........................ 248 work-hours × $85 per hour = 

$21,080.

0 21,080 .................... $2,445,280. 

New Zone C Inspection .......................... 26 work-hours × $85 per hour = $2,210 0 2,210 ...................... $256,360. 

ESTIMATED COSTS—OPTIONAL ACTIONS

Action Labor cost Parts cost Cost per product 

Open-hole NDT Inspections (high frequency eddy current inspections).Up to 298 work-hours × $85 per hour = up to 

$25,330.

$0 ............................. Up to $25,330. 

Zone B Modification .................................... Up to 313 work-hours × $85 per hour = up to 

$26,605.

Up to $3,486 ............ Up to $30,091. 

Post-Modification Inspections ...................... Up to 298 work-hours × $85 per hour = up to 

$25,330.

$0 ............................. Up to $25,330. 


asabaliauskas on DSK3SPTVN1PROD with RULES
93588 Federal Register / Vol. 81, No. 245 / Wednesday, December 21, 2016 / Rules and Regulations 

We have received no definitive data 

that would enable us to provide a cost 

estimate for the on-condition actions 

specified in this 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 

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 that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Is not a ‘‘significant rule’’ under 

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. 

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 airworthiness 

directive (AD): 

2016–25–05 The Boeing Company: 

Amendment 39–18731; Docket No. 

FAA–2015–5816; Directorate Identifier 

2015–NM–029–AD. 

(a) Effective Date 

This AD is effective January 25, 2017. 

(b) Affected ADs 

This AD affects AD 2006–10–16, 

Amendment 39–14600 (71 FR 28570, May 17, 

2006) (‘‘AD 2006–10–16’’). 

(c) Applicability 

This AD applies to all The Boeing 

Company Model 747–100, 747–100B, 747– 

100B SUD, 747–200B, 747–200C, 747–200F, 

747–300, 747–400, 747–400D, 747–400F, 

747SR, and 747SP series airplanes; 

certificated in any category. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 55, Stabilizers. 

(e) Unsafe Condition 

This AD was prompted by reports of 

cracking found in the splice plates, hinge 

fittings, terminal fittings, the upper skin of 

the outboard and center sections, upper 

chord, and rear spar webs before reaching the 

inspection interval specified in AD 2006–10– 

16. Cracked and fractured Maraging steel 

fasteners were also found. We are issuing this 

AD to detect and correct this cracking, which 

could lead to reduced structural capability of 

the outboard and center sections of the 

horizontal stabilizer and could result in loss 

of control of the airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Repetitive Inspections/Investigative and 

Corrective Actions 

At the applicable time specified in 

paragraph 1.E., ‘‘Compliance,’’ of Boeing 

Service Bulletin 747–55A2050, Revision 2, 

dated January 23, 2015, except as required by 

paragraphs (h)(1) and (h)(2) of this AD: Do 

the applicable actions specified in 

paragraphs (g)(1), (g)(2), (g)(3), and (g)(4) of 

this AD, and all applicable related 

investigative and corrective actions, in 

accordance with the applicable part of the 

Accomplishment Instructions of Boeing 

Service Bulletin 747–55A2050, Revision 2, 

dated January 23, 2015, except as required by 

paragraph (h)(3) of this AD. Do all applicable 

related investigative and corrective actions 

before further flight. Repeat the applicable 

inspections specified in paragraphs (g)(1), 

(g)(2), (g)(3), and (g)(4) of this AD at the 

applicable times specified in paragraph 1.E., 

‘‘Compliance,’’ of Boeing Service Bulletin 

747–55A2050, Revision 2, dated January 23, 

2015. 

(1) For Group 1 through 3 airplanes 

identified in Boeing Service Bulletin 747– 

55A2050, Revision 2, dated January 23, 2015: 

Do non-destructive test (NDT) inspections 

(ultrasonic, high frequency eddy current, and 

low frequency eddy current inspections) or 

open-hole NDT inspections (high frequency 

eddy current inspections) of Zone B for 

cracking, in accordance with Part 3 or Part 

4 of the Accomplishment Instructions of 

Boeing Service Bulletin 747–55A2050, 

Revision 2, dated January 23, 2015, as 

applicable. Accomplishing a Zone B 

inspection required by this paragraph 

terminates the inspections required by 

paragraph (g) of AD 2006–10–16 for the 

inspected area only. 

(2) For Group 4 through 6 airplanes 

identified in Boeing Service Bulletin 747– 

55A2050, Revision 2, dated January 23, 2015: 

Do open-hole NDT inspections (high 

frequency eddy current inspections) of Zone 

B for cracking, in accordance with Part 4 of 

the Accomplishment Instructions of Boeing 

Service Bulletin 747–55A2050, Revision 2, 

dated January 23, 2015. Accomplishing a 

Zone B inspection required by this paragraph 

terminates the inspections required by 

paragraph (i) of AD 2006–10–16 for the 

inspected area only. 

(3) For Group 7 through 9 airplanes 

identified in Boeing Service Bulletin 747– 

55A2050, Revision 2, dated January 23, 2015: 

Do inspections of Zone A (detailed or high 

frequency eddy current inspections) and 

Zone B (open-hole high frequency eddy 

current inspections) for cracking, in 

accordance with Part 1, Part 2, or Part 4 of 

the Accomplishment Instructions of Boeing 

Service Bulletin 747–55A2050, Revision 2, 

dated January 23, 2015, as applicable. 

Accomplishing Zone A and Zone B 

inspections required by this paragraph 

terminates the inspections required by 

paragraphs (f), (i), and (l) of AD 2006–10–16 

for the inspected area only. 

(4) For Group 1 through 3 airplanes 

identified in Boeing Service Bulletin 747– 

55A2050, Revision 2, dated January 23, 2015: 

Do an inspection of Zone C Maraging or H– 

11 steel fasteners to determine whether 

fasteners are magnetic, in accordance with 

Part 6 of the Accomplishment Instructions of 

Boeing Service Bulletin 747–55A2050, 

Revision 2, dated January 23, 2015. 

(h) Exceptions to Service Bulletin 

Specifications 

(1) Where Boeing Service Bulletin 747– 

55A2050, Revision 2, dated January 23, 2015, 

specifies a compliance time ‘‘after the 

Revision 2 date of this service bulletin,’’ this 

AD requires compliance within the specified 

compliance time after the effective date of 

this AD. 

(2) The Condition column of Table 1 of 

paragraph 1.E., ‘‘Compliance,’’ of Boeing 

Service Bulletin 747–55A2050, Revision 2, 

dated January 23, 2015, refers to airplanes 

with certain total flight cycles and total flight 

hours. This AD, however, applies to the 


asabaliauskas on DSK3SPTVN1PROD with RULES
Federal Register / Vol. 81, No. 245 / Wednesday, December 21, 2016 / Rules and Regulations 93589 

airplanes with the specified total flight cycles 

and total flight hours as of the effective date 

of this AD. 

(3) Where Boeing Service Bulletin 747– 

55A2050, Revision 2, dated January 23, 2015, 

specifies to contact Boeing for repair 

instructions: Before further flight, repair 

using a method approved in accordance with 

the procedures specified in paragraph (l) of 

this AD. 

(i) Optional Terminating Action 

(1) For Group 1 through 3 airplanes 

identified in Boeing Service Bulletin 747– 

55A2050, Revision 2, dated January 23, 2015: 

Accomplishing the Zone B modification, 

including all applicable related investigative 

and corrective actions, specified in Part 7 of 

the Accomplishment Instructions of Boeing 

Service Bulletin 747–55A2050, Revision 2, 

dated January 23, 2015, except as required by 

paragraph (h)(3) of this AD, terminates the 

repetitive inspections specified in paragraphs 

(i)(1)(i) through (i)(1)(iv) of this AD for the 

modified area only. 

(i) Inspections required by paragraph (g)(1) 

of this AD for Zone B, as specified in Part 

3 and Part 4 of the Accomplishment 

Instructions of Boeing Service Bulletin 747– 

55A2050, Revision 2, dated January 23, 2015. 

(ii) Inspections required by paragraph (g)(4) 

of this AD for Zone C, as specified in Part 

6 of the Accomplishment Instructions of 

Boeing Service Bulletin 747–55A2050, 

Revision 2, dated January 23, 2015. 

(iii) Inspections required by paragraph (g) 

of AD 2006–10–16 for Zone B, as specified 

in Part 3 of the Accomplishment Instructions 

of Boeing Service Bulletin 747–55A2050, 

Revision 2, dated January 23, 2015. 

(iv) Inspections required by paragraph (k) 

of AD 2006–10–16 for Zone C, as specified 

in Part 5 of the Accomplishment Instructions 

of Boeing Service Bulletin 747–55A2050, 

Revision 2, dated January 23, 2015. 

(2) For Group 1 through 3 airplanes 

identified in Boeing Service Bulletin 747– 

55A2050, Revision 2, dated January 23, 2015: 

Accomplishing the Zone B open-hole NDT 

inspection, repairing any cracking as 

applicable, and replacing fasteners as 

specified in Part 4 of the Accomplishment 

Instructions of Boeing Service Bulletin 747– 

55A2050, Revision 2, dated January 23, 2015, 

terminates the actions specified in 

paragraphs (i)(2)(i) and (i)(2)(ii) of this AD for 

the inspected area only. 

(i) The inspections required by paragraph 

(g)(4) of this AD for Zone C, as specified in 

Part 6 of the Accomplishment Instructions of 

Boeing Service Bulletin 747–55A2050, 

Revision 2, dated January 23, 2015. 

(ii) The repetitive inspections required by 

paragraph (k) of AD 2006–10–16 for Zone C, 

as specified in Part 5 of the Accomplishment 

Instructions of Boeing Service Bulletin 747– 

55A2050, Revision 2, dated January 23, 2015. 

(3) For Group 4 through 9 airplanes 

identified in Boeing Service Bulletin 747– 

55A2050, Revision 2, dated January 23, 2015: 

Accomplishing the Zone B modification, 

including all applicable related investigative 

and corrective actions, specified in Part 7 of 

the Accomplishment Instructions of Boeing 

Service Bulletin 747–55A2050, Revision 2, 

dated January 23, 2015, except as required by 

paragraph (h)(3) of this AD, terminates the 

actions specified in paragraphs (i)(3)(i) and 

(i)(3)(ii) of this AD for the modified area only. 

(i) The repetitive inspections required by 

paragraph (g)(2) or (g)(3) of this AD, as 

applicable, only for Zone B, as specified in 

Part 4 of the Accomplishment Instructions of 

Boeing Service Bulletin 747–55A2050, 

Revision 2, dated January 23, 2015. 

(ii) The repetitive inspections required by 

paragraph (i) of AD 2006–10–16 for Zone B, 

as specified in Part 4 of the Accomplishment 

Instructions of Boeing Service Bulletin 747– 

55A2050, Revision 2, dated January 23, 2015. 

(j) Repetitive Post-Modification Inspections 

and Corrective Actions 

At the applicable time specified in 

paragraph 1.E., ‘‘Compliance,’’ of Boeing 

Service Bulletin 747–55A2050, Revision 2, 

dated January 23, 2015: Do the applicable 

inspections specified in paragraphs (j)(1) and 

(j)(2) of this AD, and all applicable corrective 

actions, in accordance with Part 8 of the 

Accomplishment Instructions of Boeing 

Service Bulletin 747–55A2050, Revision 2, 

dated January 23, 2015, except as required by 

paragraph (h)(3) of this AD. Do all applicable 

corrective actions before further flight. 

Repeat the applicable inspections at the 

applicable times specified in paragraph 1.E., 

‘‘Compliance,’’ of Boeing Service Bulletin 

747–55A2050, Revision 2, dated January 23, 

2015. 

(1) For Group 1 through 3 airplanes 

identified in Boeing Service Bulletin 747– 

55A2050, Revision 2, dated January 23, 2015, 

on which the Zone B modification specified 

in paragraph (i)(1) of this AD is done: Do 

non-destructive test (NDT) inspections 

(ultrasonic, high frequency eddy current, and 

low frequency eddy current inspections) or 

open-hole NDT inspections (high frequency 

eddy current inspections) of Zone B for 

cracking. 

(2) For Group 4 through 9 airplanes 

identified in Boeing Service Bulletin 747– 

55A2050, Revision 2, dated January 23, 2015, 

on which the Zone B modification specified 

in paragraph (i)(3) of this AD is done: Do 

open-hole NDT inspections (high frequency 

eddy current inspections) of Zone B for 

cracking. 

(k) Parts Installation Prohibition 

As of the effective date of this AD, no 

person may install any Maraging or H–11 

steel fasteners in the locations specified in 

this AD. Where Boeing Service Bulletin 747– 

55A2050, Revision 2, dated January 23, 2015, 

specifies to install H–11 bolts (kept 

fasteners), this AD requires installation of 

Inconel bolts. 

(l) Alternative Methods of Compliance 

(AMOCs) 

(1) 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. 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 manager of the ACO, send it to the 

attention of the person identified in 

paragraph (m) of this AD. Information may be 

emailed to: 9-ANM-Seattle-ACO-AMOCRequests@faa.gov. 

(2) 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. 

(3) An AMOC that provides an acceptable 

level of safety may be used for any repair 

required by this AD if it is approved by the 

Boeing Commercial Airplanes Organization 

Designation Authorization (ODA) that has 

been authorized by the Manager, Seattle 

ACO, to make those findings. For a repair 

method to be approved, the repair must meet 

the certification basis of the airplane, and the 

approval must specifically refer to this AD. 

(4) AMOCs approved for AD 2006–10–16, 

are approved as AMOCs for the 

corresponding provisions of paragraph (g) of 

this AD, except for approved AMOCs that 

allow installation of Maraging or H–11 steel 

fasteners. 

(m) Related Information 

For more information about this AD, 

contact Nathan Weigand, Aerospace 

Engineer, Airframe Branch, ANM–120S, 

FAA, Seattle ACO, 1601 Lind Avenue SW., 

Renton, WA 98057–3356; phone: 425–917– 

6428; fax: 425–917–6590; email: 

nathan.p.weigand@faa.gov. 

(n) 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) Boeing Service Bulletin 747–55A2050, 

Revision 2, dated January 23, 2015. 

(ii) Reserved. 

(3) For service information identified in 

this AD, contact Boeing Commercial 

Airplanes, Attention: Data & Services 

Management, P.O. Box 3707, MC 2H–65, 

Seattle, WA 98124–2207; telephone: 206– 

544–5000, extension 1; fax: 206–766–5680; 

Internet https://www.myboeingfleet.com. 

(4) 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. 

(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 Renton, Washington, on 

November 25, 2016. 

John P. Piccola, Jr., 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2016–29307 Filed 12–20–16; 8:45 am] 

BILLING CODE 4910–13–P 


asabaliauskas on DSK3SPTVN1PROD with RULES