Federal Register / Vol. 62, No. 65 / Friday, April 4, 1997 / Rules and Regulations 16069

Document

No. Pages Revision Date

Total

Pages:

9.

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 CFM International,

Technical Publications Department, One

Neumann Way, Cincinnati, OH 45215;

telephone (513) 552–2981, fax (513)

552–2816. Copies may be inspected at

the FAA, New England Region, Office of

the Assistant Chief Counsel, 12 New

England Executive Park, Burlington,

MA; or at the Office of the Federal

Register, 800 North Capitol Street NW.,

Suite 700, Washington, DC.

(k) This amendment becomes effective

on June 3, 1997.

Issued in Burlington, Massachusetts, on

February 27, 1997.

James C. Jones,

Acting Manager, Engine and Propeller

Directorate, Aircraft Certification Service.

[FR Doc. 97–7979 Filed 4–3–97; 8:45 am]

BILLING CODE 4910–13–U

14 CFR Part 39

[Docket No. 96–NM–131–AD; Amendment

39–9982; AD 97–07–08]

RIN 2120–AA64

Airworthiness Directives; Jetstream

Model 4101 Airplanes

AGENCY: Federal Aviation

Administration, DOT.

ACTION: Final rule.

SUMMARY: This amendment adopts a

new airworthiness directive (AD),

applicable to certain Jetstream Model

4101 airplanes, that requires the

replacement of weight limitation

placards in the aft main baggage bay and

in the aft right stowage compartment

with new placards indicating lower

maximum weight limits. It also requires

a revision of the Airplane Flight Manual

to delete references to the current higher

weight limits for these areas. This

amendment is prompted by a report

indicating that existing weight

limitations could result in failure of the

front bulkhead of the aft main baggage

bay and doors of the aft right stowage

compartment during emergency

dynamic landing conditions. The

actions specified by this AD are

intended to prevent such failure, which

consequently could result in injury to

passengers and flight crew, and hinder

evacuation of the airplane through the

exit adjacent to this bulkhead.

DATES: Effective May 9, 1997.

The incorporation by reference of

certain publications listed in the

regulations is approved by the Director

of the Federal Register as of May 9,

1997.

ADDRESSES: The service information

referenced in this AD may be obtained

from Jetstream Aircraft, Inc., P.O. Box

16029, Dulles International Airport,

Washington, DC 20041–6029. This

information may be examined at the

Federal Aviation Administration (FAA),

Transport Airplane Directorate, Rules

Docket, 1601 Lind Avenue, SW.,

Renton, Washington; or at the Office of

the Federal Register, 800 North Capitol

Street, NW., Suite 700, Washington, DC.

FOR FURTHER INFORMATION CONTACT:

William Schroeder, Aerospace Engineer,

Standardization Branch, ANM–113,

FAA, Transport Airplane Directorate,

1601 Lind Avenue, SW., Renton,

Washington 98055–4056; telephone

(206) 227–2148; fax (206) 227–1149.

SUPPLEMENTARY INFORMATION: A

proposal to amend part 39 of the Federal

Aviation Regulations (14 CFR part 39) to

include an airworthiness directive (AD)

that is applicable to certain Jetstream

Model 4101 airplanes was published in

the Federal Register on December 6,

1996 (61 FR 64643). That action

proposed to require removal of the

weight limitation placards in the aft

main baggage bay and aft right stowage

compartment, and replacement with

new placards that establish lower

maximum weight limits in these areas.

It also proposed to require a revision to

the AFM for certain airplanes that

would remove references to higher

weight limits in effect before the new

placards are installed.

Interested persons have been afforded

an opportunity to participate in the

making of this amendment. Due

consideration has been given to the

comments received.

Support for the Proposal

One commenter supports the

proposed AD.

Request to Withdraw Proposal

One commenter requests that the

proposal be withdrawn since there

would be no U.S. airplanes subject to it.

The commenter points out that the

applicability statement of the proposal

indicates that airplanes listed in

Jetstream Service Bulletin J41–11–004

would be subject to the AD. However,

that service bulletin states that it does

not affect any airplanes on which the

procedures specified in Jetstream

Service Bulletin J41–53–006 have been

accomplished. The commenter states

that only 18 U.S. airplanes would be

applicable to the proposed AD, and all

of those airplanes are owned by one

U.S. operator (the commenter). All of

these airplanes have been modified in

accordance with Jetstream Service

Bulletin J41–53–006. In light of this, the

proposal would not be applicable to any

U.S. airplane and, therefore, should be

withdrawn.

The FAA does not concur with the

commenter’s request to withdraw the

proposal, for the following reasons:

First, the FAA acknowledges that the

Cost Impact section of the preamble to

the notice erroneously indicated that 44

airplanes would be affected by the

proposed AD; although this number was

in error, the correct number of airplanes

affected is 25, not 18, as stated by the

commenter. (The referenced Jetstream

Service Bulletin J41–11–014 also lists a

total of 25 possibly affected airplanes.)

Accordingly, the Cost Impact

information, below, has been corrected

to show that 25 airplanes are affected by

the requirements of the AD.

Second, the FAA has no evidence to

prove that all 25 affected airplanes have

been modified in accordance with

Jetstream Service Bulletin J41–53–006,

and thus would not be subject to the

AD.

Third, even if all affected airplanes

have been modified in accordance with

Jetstream Service Bulletin J41–53–006,

the issuance of this AD is still necessary

to make it mandatory that the correct

placards are installed and the AFM

revision is accomplished on all affected

airplanes on the U.S. register. This AD

is also required to ensure that, if the

modification described in Service

Bulletin J41–53–006 is removed from a

modified airplane at a later date, the

placards and AFM revision required by

this AD are implemented.

Conclusion

After careful review of the available

data, including the comments noted

above, the FAA has determined that air

safety and the public interest require the

adoption of the rule as proposed.

Cost Impact

The FAA estimates that 25 Jetstream

Model 4101 airplanes of U.S. registry

will be affected by this AD, that it will

take approximately 1 work hour per

airplane to accomplish the required

actions, and that the average labor rate

is $60 per work hour. Required parts

will be provided by the manufacturer at

no cost to operators. Based on these

figures, the cost impact of the AD on
16070 Federal Register / Vol. 62, No. 65 / Friday, April 4, 1997 / Rules and Regulations

U.S. operators is estimated to be $1,500,

or $60 per airplane.

The cost impact figure discussed

above is based on assumptions that no

operator has yet accomplished any of

the requirements of this AD action, and

that no operator would accomplish

those actions in the future if this AD

were not adopted.

Regulatory Impact

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, 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 U.S.C. 106(g), 40113, 44701.

§ 39.13 [Amended]

2. Section 39.13 is amended by

adding the following new airworthiness

directive:

97–07–08 Jetstream Aircraft Limited:

Amendment 39–9982. Docket 96–NM–131–

AD.

Applicability: Model 4101 airplanes, as

listed in Jetstream Service Bulletin J41–11–

014, dated January 18, 1996; certificated in

any category.

Note 1: This AD applies to each airplane

identified in the preceding applicability

provision, regardless of whether it has been

otherwise 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 as indicated, unless

accomplished previously.

To prevent failure of the front bulkhead of

the aft main baggage bay and the doors of the

aft right stowage compartment during

emergency landing dynamic conditions,

which consequently could result in injury to

passengers and flight crew and hinder

evacuation of the airplane through the exit

adjacent to the bulkhead, accomplish the

following:

(a) For all airplanes: Within 30 days after

the effective date of this AD, replace the

weight limitation placards in the aft main

baggage bay and aft right stowage

compartment with new placards indicating

lower maximum weight limitations, in

accordance with Jetstream Service Bulletin

J41–11–014, dated January 18, 1996.

(b) For airplanes having constructor

numbers 41041 through 41043 inclusive,

41045, 41055, 41058, 41059, 41063, and

41064: Within 30 days after the effective date

of this AD, after accomplishment of the

requirements of paragraph (a) of this AD,

revise the FAA-approved Airplane Flight

Manual by removing Amendment P25, in

accordance with Jetstream Service Bulletin

J41–11–014, dated January 18, 1996.

(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,

Standardization Branch, ANM–113, 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, Standardization

Branch, ANM–113.

Note 2: Information concerning the

existence of approved alternative methods of

compliance with this AD, if any, may be

obtained from the Standardization Branch,

ANM–113.

(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 actions shall be done in accordance

with Jetstream Service Bulletin J41–11–014,

dated January 18, 1996. 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, Inc., P.O.

Box 16029, Dulles International Airport,

Washington, DC 20041–6029. Copies may be

inspected at the FAA, Transport Airplane

Directorate, 1601 Lind Avenue, SW., Renton,

Washington; or at the Office of the Federal

Register, 800 North Capitol Street, NW., suite

700, Washington, DC.

(f) This amendment becomes effective on

May 9, 1997.

Issued in Renton, Washington, on March

26, 1997.

Darrell M. Pederson,

Acting Manager, Transport Airplane

Directorate, Aircraft Certification Service.

[FR Doc. 97–8265 Filed 4–3–97; 8:45 am]

BILLING CODE 4910–13–U

14 CFR Part 39

[Docket No. 96–NM–101–AD; Amendment

39–9983; AD 97–07–09]

RIN 2120–AA64

Airworthiness Directives; Airbus Model

A300 Series Airplanes

AGENCY: Federal Aviation

Administration, DOT.

ACTION: Final rule.

SUMMARY: This amendment adopts a

new airworthiness directive (AD),

applicable to certain Airbus Model

A300 series airplanes, that requires

repetitive checks and testing of certain

equipment that regulates the flow of fuel

from wing tank 2A to the number 2

engine. This amendment also requires

replacement of this equipment with

equipment that has been designed to

prevent incorrect installation; this

replacement is considered to be

terminating action for the repetitive

equipment checks and tests. This

amendment is prompted by reports

indicating that the incorrect installation

of this equipment has caused the flight

crew to shut off, rather than open,

certain valves that regulate the flow of

fuel from between this tank and engine.

The actions specified by this AD are

intended to detect and rectify incorrect

installations, which could result in the

flight crew inadvertently shutting off the

flow of fuel to the engine, and

consequent engine failure during flight.

DATES: Effective May 9, 1997.

The incorporation by reference of

certain publications listed in the

regulations is approved by the Director

of the Federal Register as of May 9,

1997.

ADDRESSES: The service information

referenced in this AD may be obtained

from Airbus Industrie, 1 Rond Point

Maurice Bellonte, 31707 Blagnac Cedex,