Federal Register / Vol. 75, No. 192 / Tuesday, October 5, 2010 / Rules and Regulations 61345 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0691; Directorate 

Identifier 2010–CE–027–AD; Amendment 

39–16459; AD 2010–20–24] 

RIN 2120–AA64 

Airworthiness Directives; Eclipse 

Aerospace, Inc. Model EA500 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for the 

products listed above. This AD requires 

incorporating changes to the electronic 

flight information system and the 

airplane flight manuals. This AD was 

prompted by reports of uncommanded 

changes to the communications radio 

frequency, altitude preselect, and/or 

transponder codes. We are issuing this 

AD to correct faulty integration of 

hardware and software, which could 

result in unannunciated, uncommanded 

changes in communications radio 

frequency, transponder codes, and 

altitude preselect settings. These 

uncommanded changes could result in 

loss of communication with air traffic 

control due to improper 

communications frequency, autopilot 

level off at the incorrect altitude, or air 

traffic control loss of proper tracking of 

the aircraft. 

DATES: This AD is effective November 9, 

2010. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of November 9, 2010. 

ADDRESSES: For service information 

identified in this AD, contact Eclipse 

Aerospace Incorporated, 2503 Clark Carr 

Loop, SE., Albuquerque, New Mexico 

87106; telephone: (505) 724–1200; 

http://www.eclipseaerospace.net. You 

may review copies of the 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. 

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 (phone: 800–647–5527) is 

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: Eric 

Kinney, Aerospace Engineer, Ft. Worth 

Aircraft Certification Office, FAA, 2601 

Meacham Blvd., Fort Worth, Texas 

76137; telephone: (817) 222–5459; fax: 

(817) 222–5960; e-mail: 

eric.kinney@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an airworthiness 

directive (AD) that would apply to the 

specified products. That NPRM 

published in the Federal Register on 

July 9, 2010 (75 FR 39472). That NPRM 

proposed to require incorporating 

changes to the electronic flight 

information system and the airplane 

flight manual. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comments 

received on the proposal and the FAA’s 

response to each comment. 

Request To Withdraw the NPRM and 

Issue a Special Airworthiness 

Information Bulletin (SAIB) 

Chris Jackman, Eclipse Aerospace 

Incorporated, proposed the withdrawal 

of the NPRM and requested the FAA to 

issue an SAIB instead. 

The commenter reasoned that the 

majority of the affected airplanes have 

already incorporated the corrective 

action, and the owners/operators only 

need to send confirmation of their 

taking corrective action. The commenter 

also states that an SAIB would be the 

most effective means for operators to 

become aware of the unsafe condition 

and means to communicate compliance 

with the service information. 

The FAA disagrees with the comment. 

The Airworthiness Directives Manual, 

FAA–IR–M–8040.1C, dated May 17, 

2010, prohibits the FAA from accepting 

assurance from a design approval holder 

that all products are in compliance as a 

reason not to issue an AD action. 

Consequently, we are making no change 

to the final rule AD action. 

Request To Correct the Applicability 

Section 

Chris Jackman requested a correction 

to the Applicability section, paragraph 

(c)(2) of the proposed AD action. He 

explained that the applicability in the 

NPRM is incorrect and should read as 

follows: 

SNs 000039 through 000104, 000113 

through 000115, 000120, and 000123 through 

000124, that incorporate Avionics Upgrade to 

AVIO NG Configuration for ETT Configured 

Aircraft per any revision level of Eclipse SB 

500–99–002. 

The FAA agrees with the commenter’s 

correction. This error was corrected in 

the NPRM; correction, published in the 

Federal Register on August 2, 2010 (75 

FR 45075). The final rule AD action 

incorporates that correction. 

Request To Add a Reference to Eclipse 

Aviation Recommended Service 

Bulletin SB 500–99–005, REV B, dated 

January 22, 2010 

Chris Jackman commented that 

Eclipse Aviation Recommended Service 

Bulletin SB 500–99–005, REV B, dated 

January 22, 2010, also includes 

procedures for compliance with this AD 

and requested adding a reference to that 

service bulletin in addition to Eclipse 

Aviation Recommended Service 

Bulletin SB 500–99–005, REV A, dated 

February 16, 2009. 

The FAA agrees with the commenter. 

We are adding a reference to Eclipse 

Aviation Recommended Service 

Bulletin SB 500–99–005, REV B, dated 

January 22, 2010, to the final rule AD 

action. 

Request To Change the Contact 

Information for Eclipse Aerospace 

Incorporated 

Chris Jackman stated the contact for 

service information has changed. The 

current name is Eclipse Aerospace 

Incorporated instead of Eclipse Aviation 

Corporation. 

The FAA agrees with the commenter. 

We changed the contact information in 

the final rule AD action. 

Request To Withdraw the Proposed AD 

Gerard Wasselle stated that he and at 

least six other owners/pilots who have 

vast experience in the Eclipse Model 

EA500 airplane, all agree that the unsafe 

condition presented in the proposed AD 

occurs only in the AVIO NG version 1.1. 

We infer that the commenter would like 

to have the proposed AD withdrawn. 

We disagree with the commenter. The 

root cause investigation by Eclipse 

Aerospace Incorporated discovered that 

this problem can and has occurred in 

Innovative Solution & Support 


emcdonald on DSK2BSOYB1PROD with RULES
61346 Federal Register / Vol. 75, No. 192 / Tuesday, October 5, 2010 / Rules and Regulations 

equipment with software versions 1.0 

through 1.2. This AD is not applicable 

to Avidyne AVIO-equipped Model 

EA500 airplanes. We are not changing 

the final rule AD action as a result of 

this comment. 

Request To Withdraw the Proposed AD 

Because of Cost 

Gerard Wasselle stated the corrective 

action is cost prohibitive for owners of 

an older version of AVIO to upgrade to 

AVIO NG since it is more than the value 

of the airplane. We infer that the 

commenter would like to see the 

proposed AD withdrawn. 

The FAA disagrees with the 

commenter. This AD action does not 

apply to Avidyne AVIO-equipped 

Model EA500 airplanes. We are not 

changing the final rule AD action as a 

result of this comment. 

Conclusion 

We reviewed the relevant data, 

considered the comments received, and 

determined that air safety and the 

public interest require adopting the AD 

with the changes 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 the AD. 

Costs of Compliance 

We estimate that this AD affects 168 

airplanes of U.S. registry. 

Owners/operators will comply with 

this AD action by doing either of the 

following update options. We have no 

way of knowing the number of airplanes 

that would receive each of these 

upgrades. 

We estimate the following costs to do 

the electronic flight instrument system 

1.3 software update: 

Labor cost Parts cost Total cost per 

airplane 

2 work-hours × $85 per hour = $170 ............................................................... $600 to $1,500 .................................................. $770 to $1,670. 

We estimate the following costs to do 

the avionics upgrade to AVIO NG + 1.5 

configuration: 

Labor cost Parts cost Total cost 

per airplane 

198 work-hours × $85 per hour = $16,830 ..................................................................................................................... $233,120 $249,950 

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): 

2010–20–24 Eclipse Aerospace, Inc.: 

Amendment 39–16459; Docket No. 

FAA–2010–0691; Directorate Identifier 

2010–CE–027–AD. 

Effective Date 

(a) This AD is effective November 9, 2010. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Model EA500 

airplanes with the following serial numbers 

(SNs) that are certificated in any category: 

(1) SNs 000105 through 000112, 000116 

through 000119, 000121 through 000122, and 

000125 through 000260; 

(2) SNs 000039 through 000104, 000113 

through 000115, 000120, and 000123 through 

000124, that incorporate Avionics Upgrade to 

AVIO NG Configuration for ETT Configured 

Aircraft per any revision level of Eclipse SB 

500–99–002; and 

(3) SNs 000001 through 000038, that 

incorporate Performance Enhancement & 

Drag Reduction Modification per any 

revision level of Eclipse SB 500–99–001 and 

Avionics Upgrade to AVIO NG Configuration 

for ETT Configured Aircraft per any revision 

level of Eclipse SB 500–99–002. 


emcdonald on DSK2BSOYB1PROD with RULES
Federal Register / Vol. 75, No. 192 / Tuesday, October 5, 2010 / Rules and Regulations 61347 

Subject 

(d) Air Transport Association of America 

(ATA) Code 23: Communications. 

Unsafe Condition 

(e) This AD results from reports of 

uncommanded changes to the 

communications radio frequency, altitude 

preselect, and/or transponder codes. We are 

issuing this AD to correct faulty integration 

of hardware and software, which could result 

in unannunciated, uncommanded changes in 

communications radio frequency, 

transponder codes, and altitude preselect 

settings. These uncommanded changes could 

result in loss of communication with air 

traffic control due to improper 

communications frequency, autopilot level 

off at the incorrect altitude, or air traffic 

control loss of proper tracking of the aircraft. 

Compliance 

(f) To address this problem, you must do 

the following, unless already done: 

TABLE 1—ACTIONS, COMPLIANCE, AND PROCEDURES

Actions (software updates and AFM revisions) Compliance Procedures 

(1) Incorporate one of the following set of software upgrades 

and AFM revisions: 

(i) Electronic flight instrument system (EFIS) 1.3 software update and one of the following airplane flight 

manual revisions: 

(A) Temporary Revision (TR) 010, Airplane Flight 

Manual part number (P/N) 06–122204 Before 3– 

45, Revision 01 and TR 009, Quick Reference 

Handbook P/N 06–122205, Revision 01; or 

(B) TR 010A, Airplane Flight Manual P/N 06– 

122204 Before 3–51, Revision 02 and TR 009A, 

Quick Reference Handbook P/N 06–122205, Revision 02; or 

(C) Airplane Flight Manual P/N 06–122204 Revision 

3, dated February 3, 2010, and Quick Reference 

Handbook P/N 06–122205, Revision 03. 

(ii) Avionics upgrade to AVIO NG + 1.5 Configuration 

and one of the following airplane flight manual revisions: 

(A) Aircraft Flight Manual, P/N 06–122204, Revision 

2, dated November 7, 2008, or 

(B) AVIO NG + 1.5 configuration and Aircraft Flight 

Manual, P/N 06–122204, Revision 3, dated February 10, 2010. 

Incorporate within the next 6 months 

after November 9, 2010 (the effective 

date of this AD). 

Follow, as appropriate, Eclipse Aviation 

Required Service Bulletin SB 

500-31–015, REV D, dated January 

14, 2009; or Eclipse Aviation Recommended Service Bulletin SB 500– 

99–005, REV A, dated February 16, 

2009; or Eclipse Aviation Recommended Service Bulletin SB 500– 

99–005, REV B, dated January 22, 

2010. 

(2) Send the completed service bulletin compliance record 

required by paragraph (f)(1)(i) of this AD or paragraph 

(f)(1)(ii) of this AD to the address identified in paragraph 

(g) of this AD. The Office of Management and Budget 

(OMB) approved the information collection requirements 

contained in this regulation under the provisions of the Paperwork Reduction Act of 1980 (44 U.S.C. 3501 et seq.) 

and assigned OMB Control Number 2120–0056. 

Within 30 days after you incorporate 

the revisions required by paragraph 

(f)(1)(i) of this AD or paragraph 

(f)(1)(ii) of this AD or within 30 days 

after November 9, 2010 (the effective 

date of this AD), whichever occurs 

later. 

Not Applicable. 

Alternative Methods of Compliance 

(AMOCs) 

(g) The Manager, Fort Worth Airplane 

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: Eric 

Kinney, Fort Worth ACO, Aerospace 

Engineer, 2601 Meacham Blvd., Fort Worth, 

Texas 76137; telephone: (817) 222–5459; fax: 

(817) 222–5960. 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 

(h) For more information about this AD, 

contact Eric Kinney, Aerospace Engineer, 

Fort Worth ACO, FAA, 2601 Meacham Blvd., 

Fort Worth, Texas 76137; phone: (817) 222– 

5459; fax: (817) 222–5960; e-mail: 

eric.kinney@faa.gov. 

Material Incorporated by Reference 

(i) You must use the service information 

contained in Table 2 of this AD to do the 

actions required by this AD, unless the AD 

specifies otherwise. 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

the service information contained in Table 2 

of this AD under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

TABLE 2—MATERIAL INCORPORATED BY REFERENCE

Document Revision Date 

(i) Eclipse Aviation Required Service Bulletin SB 500-31–015 ................................................... REV D ......................... January 14, 2009. 

(ii) Eclipse Aviation Recommended Service Bulletin SB 500–99–005 ........................................ REV B ......................... January 22, 2010. 

(iii) Eclipse Aviation Recommended Service Bulletin SB 500–99–005 ....................................... REV A ......................... February 16, 2009. 

(2) For service information identified in 

this AD, contact Eclipse Aerospace 

Incorporated, 2503 Clark Carr Loop, SE., 

Albuquerque, New Mexico 87106; telephone: 

(505) 724–1200; http:// 

www.eclipseaerospace.net. 

(3) You may review copies of the 

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. 

(4) You may also review copies of the 

service information that is incorporated by 


emcdonald on DSK2BSOYB1PROD with RULES
61348 Federal Register / Vol. 75, No. 192 / Tuesday, October 5, 2010 / Rules and Regulations 

reference at the National Archives and 

Records Administration (NARA). For 

information on the availability of this 

material at an NARA facility, call 202–741– 

6030, or go to http://www.archives.gov/ 

federal_register/code_of_federal_regulations/ 

ibr_locations.html. 

Issued in Kansas City, Missouri, on 

September 24, 2010. 

Patrick R. Mullen, 

Acting Manager, Small Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2010–24611 Filed 10–4–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0276; Directorate 

Identifier 2009–NM–144–AD; Amendment 

39–16452; AD 2010–20–17] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc. Model CL–600–2B19 (Regional Jet 

Series 100 & 440) Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are superseding an 

existing airworthiness directive (AD) for 

the products listed above. 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 MCAI describes the unsafe 

condition as: 

Three cases of in-flight loss of cabin 

pressurization have been reported, resulting 

from failure of a bulkhead check valve in 

combination with failure of an air supply 

duct. 

In addition to mandating inspection, 

rework and/or replacement of the air supply 

ducts, Airworthiness Directive (AD) CF– 

2003–05 (subsequently revised to CF–2003– 

05R1) [which corresponds to FAA AD 2004– 

22–08] mandated the incorporation of a 4000 

flight-hour repetitive inspection task for 

bulkhead check valves, Part Numbers (P/N) 

92E20–3 and 92E20–4, into the approved 

maintenance schedule. However, this 

repetitive inspection task has since been 

superseded by a 3000 flight-hour periodic 

discard task for these bulkhead check valves. 

This directive mandates revision of the 

approved maintenance schedule to 

incorporate the discard task for bulkhead 

check valves, P/N 92E20–3 and 92E20–4, and 

supersedes the instructions in Corrective 

Actions, Part A, of AD CF–2003–05R1, dated 

7 February 2006. 

We are issuing this AD to require 

actions to correct the unsafe condition 

on these products. 

DATES: This AD becomes effective 

November 9, 2010. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of November 9, 2010. 

On December 2, 2004 (69 FR 62807, 

October 28, 2004), the Director of the 

Federal Register approved the 

incorporation by reference of certain 

other publications listed in this AD. 

ADDRESSES: You may examine the AD 

docket on the Internet at http:// 

www.regulations.gov or in person at the 

U.S. Department of Transportation, 

Docket Operations, M–30, West 

Building Ground Floor, Room W12–140, 

1200 New Jersey Avenue, SE., 

Washington, DC. 

FOR FURTHER INFORMATION CONTACT: 

Christopher Alfano, Airframe and 

Mechanical Systems Branch, ANE–171, 

FAA, New York Aircraft Certification 

Office (ACO), 1600 Stewart Avenue, 

Suite 410, Westbury, New York 11590; 

telephone (516) 228–7340; fax (516) 

794–5531. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that would 

apply to the specified products. That 

NPRM was published in the Federal 

Register on April 5, 2010 (75 FR 17086). 

That NPRM proposed to correct an 

unsafe condition for the specified 

products. The MCAI states: 

Three cases of in-flight loss of cabin 

pressurization have been reported, resulting 

from failure of a bulkhead check valve in 

combination with failure of an air supply 

duct. 

In addition to mandating inspection, 

rework and/or replacement of the air supply 

ducts, Airworthiness Directive (AD) CF– 

2003–05 (subsequently revised to CF–2003– 

05R1) [which corresponds to FAA AD 2004– 

22–08] mandated the incorporation of a 4000 

flight-hour repetitive inspection task for 

bulkhead check valves, Part Numbers (P/N) 

92E20–3 and 92E20–4, into the approved 

maintenance schedule. However, this 

repetitive inspection task has since been 

superseded by a 3000 flight-hour periodic 

discard task for these bulkhead check valves. 

This directive mandates revision of the 

approved maintenance schedule to 

incorporate the discard task for bulkhead 

check valves, P/N 92E20–3 and 92E20–4, and 

supersedes the instructions in Corrective 

Actions, Part A, of AD CF–2003–05R1, dated 

7 February 2006. 

You may obtain further information by 

examining the MCAI in the AD docket. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

considered the comments received. 

Request to Provide Credit for Actions 

Accomplished Per Previous Issue of 

Service Bulletin 

Air Wisconsin requests that credit be 

provided for actions accomplished in 

accordance with a previous issue of a 

service bulletin. Air Wisconsin states 

that paragraph (g)(3) of the NPRM 

specifies that actions accomplished in 

accordance with Bombardier Alert 

Service Bulletin A601R–21–053, dated 

November 8, 2001, are considered 

acceptable for compliance; however, 

paragraph (i) of the NPRM states that 

Bombardier Alert Service Bulletin 

A601R–21–053, Revision ‘A,’ dated 

January 28, 2003, needs to be 

accomplished. Air Wisconsin states that 

the NPRM should provide credit for 

actions accomplished in accordance 

with Bombardier Alert Service Bulletin 

A601R–21–053, dated November 8, 

2001; and Revision ‘A,’ dated January 

28, 2003. Air Wisconsin states that 

Revision ‘A’ did not affect airplanes on 

which actions were accomplished in 

accordance with the original issue of 

that service bulletin. Air Wisconsin 

states that its affected airplanes were 

modified in accordance with 

Bombardier Alert Service Bulletin 

A601R–21–053, dated November 8, 

2001. 

We agree that credit should be given 

for actions done in accordance with 

Bombardier Alert Service Bulletin 

A601R–21–053, dated November 8, 

2001, and note that this AD does 

provide credit. In the ‘‘Restatement of 

Requirements of AD 2004–22–08, 

Amendment 39–13836’’ section of this 

AD, we refer to the latest revision of the 

service bulletin, Bombardier Alert 

Service Bulletin A601R–21–053, 

Revision ‘A,’ dated January 28, 2003, for 

accomplishing the actions specified in 

paragraphs (h) and (i) of this AD. In 

paragraph (g)(3) of this AD, we provide 

credit for actions done before December 

2, 2004 (the effective date of AD 2004– 

22–08) in accordance with Bombardier 

Alert Service Bulletin A601R–21–053, 

dated November 8, 2001, with the 

corresponding actions in paragraphs 

specified in paragraphs (h) and (i) of 

this AD. We have not changed the AD 

in regard to this issue. 

Request To Clarify the Requirements of 

Paragraph (j) of the NPRM 

Comair, Inc. (Comair) notes that 

paragraph (j) of the NPRM proposes to 

revise the Airworthiness Limitations 


emcdonald on DSK2BSOYB1PROD with RULES