Federal Register / Vol. 60, No. 246 / Friday, December 22, 1995 / Rules and Regulations 66485

Note 1: This AD applies to each airplane

identified in the preceding applicability

provision, regardless of whether it has been

modified, altered, or repaired in the area

subject to the requirements of this AD. For

airplanes that have been modified, altered, or

repaired so that the performance of the

requirements of this AD is affected, the

owner/operator must use the authority

provided in paragraph (c) of this AD to

request approval from the FAA. This

approval may address either no action, if the

current configuration eliminates the unsafe

condition; or different actions necessary to

address the unsafe condition described in

this AD. Such a request should include an

assessment of the effect of the changed

configuration on the unsafe condition

addressed by this AD. In no case does the

presence of any modification, alteration, or

repair remove any airplane from the

applicability of this AD.

Compliance: Required as indicated, unless

accomplished previously.

To prevent cracking and subsequent failure

of the outflow/safety valves, which could

result in rapid decompression of the airplane,

accomplish the following:

(a) Within 18 months after the effective

date of this AD, replace the outflow/safety

valve in accordance with Allied Signal

Aerospace Service Bulletin 103576–21–4054

(for Model 441 series airplanes), 103576–21–

4056 (for Model 500 and 550 series

airplanes), or 103648–21–4055 (for Model

560 series airplanes), all dated January 30,

1995, as applicable.

(b) As of the effective date of this AD, no

person shall install an outflow/safety valve,

having a part number and serial number

identified in Allied Signal Aerospace Service

Bulletin 103576–21–4054 (for Model 441

series airplanes), 103576–21–4056 (for Model

500 and 550 series airplanes), or 103648–21–

4055 (for Model 560 series airplanes), all

dated January 30, 1995, on any airplane

unless that valve is considered to be

serviceable in accordance with the applicable

service bulletin.

(c) An alternative method of compliance or

adjustment of the compliance time that

provides an acceptable level of safety may be

used if approved by the Manager, Los

Angeles Aircraft Certification Office (ACO),

FAA, Transport Airplane Directorate.

Operators shall submit their requests through

an appropriate FAA Principal Maintenance

Inspector, who may add comments and then

send it to the Manager, Los Angeles ACO.

Note 2: Information concerning the

existence of approved alternative methods of

compliance with this AD, if any, may be

obtained from the Los Angeles ACO.

(d) Special flight permits may be issued in

accordance with sections 21.197 and 21.199

of the Federal Aviation Regulations (14 CFR

21.197 and 21.199) to operate the airplane to

a location where the requirements of this AD

can be accomplished.

(e) The replacement shall be done in

accordance with Allied Signal Aerospace

Service Bulletin 103576–21–4054, dated

January 30, 1995; Allied Signal Aerospace

Service Bulletin 103576–21–4056, dated

January 30, 1995; or Allied Signal Aerospace

Service Bulletin 103648–21–4055, dated

January 30, 1995, as applicable. This

incorporation by reference was approved by

the Director of the Federal Register in

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

part 51. Copies may be obtained from Allied

Signal Inc., Controls and Accessories, 1110

North Oracle Road, Tucson, Arizona 85737–

9588. Copies may be inspected at the FAA,

Transport Airplane Directorate, 1601 Lind

Avenue SW., Renton, Washington; or at the

FAA, Los Angeles Aircraft Certification

Office, Transport Airplane Directorate, 3960

Paramount Boulevard, Lakewood, California;

or at the Office of the Federal Register, 800

North Capitol Street NW., suite 700,

Washington, DC.

(f) This amendment becomes effective on

January 22, 1996.

Issued in Renton, Washington, on

December 5, 1995.

Darrell M. Pederson,

Acting Manager, Transport Airplane

Directorate, Aircraft Certification Service.

[FR Doc. 95–31151 Filed 12–21–95; 8:45 am]

BILLING CODE 4910–13–U

14 CFR Part 39

[Docket No. 95–CE–27–AD; Amendment 39–

9443; AD 95–24–13]

Airworthiness Directives; Jetstream

Aircraft Limited HP137 Mk1, Jetstream

Series 200, and Jetstream Models 3101

and 3201 Airplanes.

AGENCY: Federal Aviation

Administration, DOT.

ACTION: Final rule.

SUMMARY: This amendment adopts a

new airworthiness directive (AD) that

applies to Jetstream Aircraft Limited

(JAL) HP137 Mk1, Jetstream Series 200,

and Jetstream Models 3101 and 3201

Airplanes. This action requires

inspecting (one-time) the threaded

portion of the aileron mounting spigots

for cracks, replacing any cracked

spigots, and replacing the securing nut

assemblies with newly designed special

nut assemblies and new split pins.

Reports of cracked aileron mounting

spigots caused by stress corrosion

prompted this action. The actions

specified by this AD are intended to

prevent damage to the aileron control

systems, which if not detected and

corrected, could cause loss of lateral

control and eventual loss of control of

the airplane.

DATES: Effective January 17, 1996.

The incorporation by reference of

certain publications listed in the

regulations is approved by the Director

of the Federal Register as of January 17,

1996.

ADDRESSES: Service information that

applies to this AD may be obtained from

Jetstream Aircraft Limited, Prestwick

International Airport, Ayrshire, KA9

2RW, Scotland, telephone (44–292)

79888; facsimile (44–292) 79703; or

Jetstream Aircraft Inc., Librarian, P.O.

Box 16029, Dulles International Airport,

Washington, D.C. 20041–6029;

telephone (703) 406–1161; facsimile

(703) 406–1469. This information may

also be examined at the Federal

Aviation Administration (FAA), Central

Region, Office of the Assistant Chief

Counsel, Attention: Rules Docket 95–

CE–27–AD, Room 1558, 601 E. 12th

Street, Kansas City, Missouri 64106; or

at the Office of the Federal Register, 800

North Capitol Street, NW., suite 700,

Washington, DC.

FOR FURTHER INFORMATION CONTACT: Ms.

Dorenda Baker, Program Officer,

Brussels Aircraft Certification Office,

FAA, Europe, Africa, and Middle East

Office, c/o American Embassy, B–1000

Brussels, Belgium; telephone (322)

508.2715; facsimile (322) 230.6899; or

Mr. Sam Lovell, Project Officer, Small

Airplane Directorate, Airplane

Certification Service, FAA, 1201

Walnut, suite 900, Kansas City, Missouri

64105; telephone (816) 426–6934;

facsimile (816) 426–2169.

SUPPLEMENTARY INFORMATION: A

proposal to amend part 39 of the Federal

Aviation Regulations (14 CFR part 39) to

include an AD that would apply to JAL

HP 137 Mk1, Jetstream series 200, and

Jetstream Models 3101 and 3201

airplanes was published in the Federal

Register on July 25, 1995 (60 FR 37966).

The action proposed to require

inspecting (one-time) the threaded

portion of the aileron mounting spigots

for cracks, replacing any cracked

spigots, and replacing the securing nut

assemblies with newly designed special

nut assemblies and new split pins.

Accomplishment of the proposed action

would be in accordance with Jetstream

Service Bulletin (SB) 57–JA 921140,

which incorporates the following pages

and revision levels:

Pages Revision level Date

4, 5, 8, 9, 10, 12, 13 and 14 ........................................................................................................................ Original Issue ......... Feb. 24, 1993.

1, 2, 3, 6 7, and 11 ....................................................................................................................................... Revision 1 .............. Feb. 3, 1994.
66486 Federal Register / Vol. 60, No. 246 / Friday, December 22, 1995 / Rules and Regulations

Interested persons have been afforded

an opportunity to participate in the

making of this amendment. No

comments were received on the

proposed rule or the FAA’s

determination of the cost to the public.

After careful review of all available

information related to the subject

presented above, the FAA has

determined that air safety and the

public interest require the adoption of

the rule as proposed except for minor

editorial corrections. The FAA has

determined that these minor corrections

will not change the meaning of the AD

and will not add any additional burden

upon the public than was already

proposed.

The FAA estimates that 160 airplanes

in the U.S. registry will be affected by

this AD, that it will take approximately

22 workhours per airplane to

accomplish the required action, and that

the average labor rate is approximately

$60 an hour. Parts will be provided by

the manufacturer at no cost to the

owners/operators. Based on these

figures, the total cost impact of this AD

on U.S. operators is estimated to be

$211,200 or $1,320 per airplane. This

figure is based on the assumption that

no owner/operator has accomplished

the proposed inspection and

modification and it does not account for

repetitive inspections. The FAA has no

way of determining the number of

repetitive inspections an owner/

operator may incur.

The compliance time of this AD is

presented in calendar time instead of

hours time-in-service (TIS). The FAA

has determined that a calendar time

compliance is the most desirable

method because the unsafe condition

described by this AD is caused by stress

corrosion. Stress corrosion initiates as a

result of airplane operation, but can

continue to develop regardless of

whether the airplane is in service or in

storage. Therefore, to ensure that the

above-referenced condition is detected

and corrected on all airplanes within a

reasonable period of time without

inadvertently grounding any airplanes, a

compliance schedule based upon

calendar time instead of hours TIS is

required.

The regulations adopted herein will

not have substantial direct effects 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, in

accordance with Executive Order 12612,

it is determined that this final rule does

not have sufficient federalism

implications to warrant the preparation

of a Federalism Assessment.

For the reasons discussed above, I

certify that this action (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); 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. A copy of the final

evaluation prepared for this action is

contained in the Rules Docket. A copy

of it may be obtained by contacting the

Rules Docket at the location provided

under the caption ADDRESSES.

List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation

safety, Incorporation by reference,

Safety.

Adoption of the Amendment

Accordingly, pursuant to the

authority delegated to me by the

Administrator, the Federal Aviation

Administration amends part 39 of the

Federal Aviation Regulations (14 CFR

part 39) as follows:

PART 39—AIRWORTHINESS

DIRECTIVES

1. The authority citation for part 39

continues to read as follows:

Authority: 49 USC 106(g), 40101, 40113,

44701.

§ 39.13 [Amended]

2. Section 39.13 is amended by

adding a new airworthiness directive

(AD) to read as follows:

AD No. 95–24–13 JETSTREAM AIRCRAFT

LIMITED: Amendment 39–9443; Docket

No. 95–CE–27–AD.

Applicability: Model HP137 Mk1, Jetstream

Series 200, and Jetstream Models 3101 and

3201 airplanes (all serial numbers),

certificated in any category.

Note 1: This AD applies to each airplane

identified in the preceding applicability

provision, regardless of whether it has been

modified, altered, or repaired in the area

subject to the requirements of this AD. For

airplanes that have been modified, altered, or

repaired so that the performance of the

requirements of this AD is affected, the

owner/operator must request approval for an

alternative method of compliance in

accordance with paragraph (c) of this AD.

The request should include an assessment of

the effect of the modification, alteration, or

repair on the unsafe condition addressed by

this AD; and, if the unsafe condition has not

been eliminated, the request should include

specific proposed actions to address it.

Compliance: Required within the next 6

calendar months after the effective date of

this AD, unless already accomplished.

To prevent damage to the aileron control

systems, which, if not detected and

corrected, could cause loss of lateral control

and eventual loss of control of the airplane,

accomplish the following:

(a) Inspect the mounting spigots for cracks

using both visual and fluorescent dye

penetrant methods in accordance with the

ACCOMPLISHMENT INSTRUCTIONS

section of Jetstream Service Bulletin (SB) 57–

JA 921140, which incorporates the following

pages and revision levels:

Pages Revision level Date

4, 5, 8, 9, 10, 12, 13 and 14 ........................................................................................................................ Original Issue ......... February 24,

1993.

1, 2, 3, 6 7, and 11 ....................................................................................................................................... Revision 1 .............. February 3,

1994.

(1) Prior to further flight, replace any

cracked spigots with applicable parts

specified in the Parts Table in paragraph 5 of

the ACCOMPLISHMENT INSTRUCTIONS

section of Jetstream SB 57–JA 921140.

(2) Prior to further flight, replace the

securing nut assemblies and split pins with

new special nut assemblies (Part No.

SL45022 (Qty. 2)), and new split pins (Part

No. SP90–C8 and SP90–C6), in accordance

with the ACCOMPLISHMENT

INSTRUCTIONS section of Jetstream SB 57–

JA 921140. This replacement is required

regardless of the results of the inspection

required in paragraph (a) of this AD.

(b) Special flight permits may be issued in

accordance with sections 21.197 and 21.199

of the Federal Aviation Regulations (14 CFR

21.197 and 21.199) to operate the airplane to

a location where the requirements of this AD

can be accomplished.

(c) An alternative method of compliance or

adjustment of the compliance time that

provides an equivalent level of safety may be

approved by the Manager, Brussels Aircraft

Certification Office, FAA, Europe, Africa, and

Middle East Office, c/o American Embassy,

B–1000 Brussels, Belgium or the Small

Airplane Directorate, Airplane Certification

Service, FAA, 1201 Walnut, suite 900,

Kansas City, Missouri 64105. The request

shall be forwarded through an appropriate
Federal Register / Vol. 60, No. 246 / Friday, December 22, 1995 / Rules and Regulations 66487

FAA Maintenance Inspector, who may add

comments and then send it to the Manager,

Brussels Aircraft Certification Office.

Note 2: Information concerning the

existence of approved alternative methods of

compliance with this AD, if any, may be

obtained from the Brussels Aircraft

Certification Office.

(d) The inspections and replacements

required by this AD shall be done in

accordance with Jetstream SB 57–JA 921140

Revision 1, dated February 24, 1993. This

incorporation by reference was approved by

the Director of the Federal Register in

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

part 51. Copies may be obtained from

Jetstream Aircraft Limited, Prestwick

International Airport, Ayrshire, KA9 2RW,

Scotland, or Jetstream Aircraft Inc., Librarian,

P.O. Box 16029, Dulles International Airport,

Washington, D.C. 20041–6029. Copies may

be inspected at the FAA, Central Region,

Office of the Assistant Chief Counsel, Room

1558, 601 E. 12th Street, Kansas City,

Missouri, or at the Office of the Federal

Register, 800 North Capitol Street, NW., 7th

Floor, suite 700, Washington, DC.

(e) This amendment (39–9443) becomes

effective on January 17, 1996.

Issued in Kansas City, Missouri, on

November 17, 1995.

Michael Gallagher,

Manager, Small Airplane Directorate, Aircraft

Certification Service.

[FR Doc. 95–31201 Filed 12–21–95; 8:45 am]

BILLING CODE 4910–13–U

14 CFR Part 39

[Docket No. 95–SW–29–AD; Amendment

39–9462; AD 95–26–04]

Airworthiness Directives; Robinson

Helicopter Company Model R22

Helicopters

AGENCY: Federal Aviation

Administration, DOT.

ACTION: Final rule.

SUMMARY: This amendment supersedes

an existing airworthiness directive (AD),

applicable to Robinson Helicopter

Company (RHC) Model R22 helicopters,

that currently requires revisions to the

Limitations section, the Normal

Procedures section, and the Emergency

Procedures section of the R22 Rotorcraft

Flight Manual, revised February 4, 1993.

These revisions limit operations in high

winds and turbulence; provide

information about main rotor (M/R) stall

and mast bumping; and provide

recommendations for avoiding these

situations. Additionally, emergency

procedures are provided for use should

certain conditions be encountered. This

action would require similar revisions

to the Limitations, Normal Procedures

and Emergency Procedures sections

required by the existing AD, but the

revision to the Limitations section

would prohibit only pilots without a

certain level of experience and training

from operating in the flight conditions

specified. This action is prompted by

data that indicates pilots who possess a

certain level of experience and training

are more able to recognize and react to

the adverse meteorological conditions

specified in the AD. The actions

specified by this AD are intended to

prevent M/R stall or mast bumping,

which could result in the M/R blades

contacting the fuselage causing failure

of the M/R system and subsequent loss

of control of the helicopter.

EFFECTIVE DATE: January 26, 1996.

FOR FURTHER INFORMATION CONTACT: Mr.

Scott Horn, Aerospace Engineer, FAA,

Rotorcraft Directorate, Rotorcraft

Standards Staff, Southwest Region, 2601

Meacham Blvd., Fort Worth, Texas

76137, telephone (817) 222–5125, fax

(817) 222–5961.

SUPPLEMENTARY INFORMATION: A

proposal to amend part 39 of the Federal

Aviation Regulations (14 CFR part 39)

by superseding AD 95–04–14,

Amendment 39–9166, which

superseded Priority Letter AD 95–02–

03, issued January 12, 1995, which is

applicable to RHC Model R22

helicopters, was published in the

Federal Register on October 12, 1995

(60 FR 53148). That action proposed to

require revisions to the Limitations

section, the Normal Procedures section,

and the Emergency Procedures section

of the R22 Rotorcraft Flight Manual,

revised February 4, 1993. These

revisions limit operations in high winds

and turbulence; provide information

about M/R stalls and mast bumping; and

provide recommendations for avoiding

these situations. Additionally,

emergency procedures are provided for

use should certain conditions be

encountered. This supersedure will

reduce limitations for pilots who have

the flight experience specified by the

AD and who have completed the SFAR

No. 73 training.

Interested persons have been afforded

an opportunity to participate in the

making of this amendment. Due

consideration has been given to the

comment received. The sole commenter

agrees with the FAA’s proposal that the

FAA’s exemption of those pilots with

sufficient training and experience from

limitations that might in some cases

substantially restrict their Model R22

flight operations is justified.

After careful review of the available

data, including the comment, the FAA

has determined that air safety and the

public interest require the adoption of

the rule as proposed.

The FAA estimates that 800

helicopters of U.S. registry would be

affected by this proposed AD, that it

would take approximately one-half

work hour per helicopter to accomplish

the proposed actions, and that the

average labor rate is $60 per work hour.

Based on these figures, the total cost

impact of the proposed AD on U.S.

operators is estimated to be $24,000.

The regulations adopted herein will

not have substantial direct effects 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, in

accordance with Executive Order 12612,

it is determined that this final rule does

not have sufficient federalism

implications to warrant the preparation

of a Federalism Assessment.

For the reasons discussed above, I

certify that this action (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); 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. A final evaluation has

been prepared for this action and it is

contained in the Rules Docket. A copy

of it may be obtained from the Rules

Docket at the location provided under

the caption ADDRESSES.

List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation

safety, Safety.

Adoption of the Amendment

Accordingly, pursuant to the

authority delegated to me by the

Administrator, the Federal Aviation

Administration amends part 39 of the

Federal Aviation Regulations (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), 40101, 40113,

44701.

§ 39.13 [Amended]

2. Section 39.13 is amended by

removing Amendment 39–9166, and by

adding a new airworthiness directive

(AD), Amendment 39–9462, to read as

follows:

AD 95–26–04 Robinson Helicopter

Company: Amendment 39–9462. Docket No.

95–SW–29–AD. Supersedes AD 95–04–14,

Amendment 39–9166.