Federal Register / Vol. 63, No. 92 /Wednesday, May 13, 1998 /Rules and Regulations 26445

(4) Deburr the rivet holes and trimmed skin

edges. Remove all debris. In a ventilated

work area, remove any surface contaminants

with a cloth that has been dampened with

aliphatic naphtha or an equivalent cleaning

solvent.

(5) Reattach the side-skin to the vertical fin

spar using MS 20470AD rivets. DO NOT

install the bottom two rivets into the vertical

fin spar where the skin was trimmed.

(6) Reinstall the vertical fin spar skin lower

edge rivets using M 7885/6–5 rivets (see

Figure 2).

(7) Refinish all reworked areas.

(8) After modifying the vertical fin spar,

immediately inspect the vertical fin spar in

accordance with paragraphs (b)(3) and (b)(4)

of this AD.

(b) After the initial modification and

inspection of the vertical fin spar have been

accomplished in accordance with paragraph

(a) of this AD, thereafter, at intervals not to

exceed 8 hours TIS, inspect the vertical fin

spar for cracks as follows:

(1) Remove the lower aft tailboom

inspection door, located at tailboom station

180 (see Figure 4).

(2) Remove the 42° gearbox cover and open

the drive shaft cover on the vertical fin (see

Figure 1).

(3) Through the lower aft tailboom

inspection door, using a bright light and an

inspection mirror, inspect the vertical fin

spar assembly adjacent to the tailboom top

skin on the forward side, paying special

attention to the left-hand edge and the

adjacent surfaces (see Figure 2).

(4) In a ventilated work area, clean all

surfaces to be inspected with a cloth

dampened with aliphatic naphtha or an

equivalent cleaning solvent. Using a bright

light and a 10x magnifying glass, inspect the

vertical fin spar assembly adjacent to the

tailboom top-skin on the in-board and outboard sides, the vertical edge, and the two

open rivet holes. Using a bright light and a

mirror, inspect the aft side of the vertical fin

spar in the same area. Special attention must

be given to the left-hand edge of the vertical

fin spar and any adjacent surfaces between

fin stations 66.31 and 71.31 (see Figure 2).

(c) If any crack is discovered on the vertical

fin spar as a result of the inspection specified

in paragraphs (b)(3) or (b)(4) of this AD,

replace the vertical fin spar assembly with an

airworthy vertical fin spar assembly before

further flight.

(d) 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, Rotorcraft

Certification Office, FAA. Operators shall

submit their requests through an FAA

Principal Maintenance Inspector, who may

concur or comment and then send it to the

Manager, Rotorcraft Certification Office.

Note 2: Information concerning the

existence of approved alternative methods of

compliance with this AD, if any, may be

obtained from the Rotorcraft Certification

Office.

(e) Special flight permits may be issued in

accordance with §§ 21.197 and 21.199 of the

Federal Aviation Regulations (14 CFR 21.197

and 21.199) to operate the helicopter to a

location where the requirements of this AD

can be accomplished.

(f) This amendment becomes effective on

May 28, 1998.

Issued in Fort Worth, Texas, on May 4,

1998.

Eric Bries,

Acting Manager, Rotorcraft Directorate,

Aircraft Certification Service.

[FR Doc. 98–12509 Filed 5–12–98; 8:45 am]

BILLING CODE 4910–13–P

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 71

[Airspace Docket No. 98–ASW–18]

Revocation of Class D Airspace,

Lubbock Reese AFB, TX, and Revision

of Class E Airspace, Lubbock, TX

AGENCY: Federal Aviation

Administration (FAA), DOT.

ACTION: Direct final rule; confirmation of

effective date.
26446 Federal Register / Vol. 63, No. 92 /Wednesday, May 13, 1998 /Rules and Regulations

SUMMARY: This notice confirms the

effective date of a direct final rule which

revokes Class D airspace at Lubbock

Reese AFB, TX, and revises Class E

airspance at Lubbock, TX.

EFFECTIVE DATE: The direct final rule

published at 63 FR 11989 is effective

0901 UTC, June 18, 1998.

FOR FURTHER INFORMATION CONTACT:

Donald J. Day, Airspace Branch, Air

Traffic Division, Southwest Region,

Federal Aviation Administration, Fort

Worth, TX 76193–0520, telephone: 817–

222–5593.

SUPPLEMENTARY INFORMATION: The FAA

published this direct final rule with a

request for comments in the Federal

Register on March 12, 1998 (63 FR

11989). The FAA uses the direct final

rulemaking procedure for a noncontroversial rule where the FAA

believes that there will be no adverse

public comment. This direct final rule

advised the public that no adverse

comments were anticipated, and that

unless a written adverse comment, or a

written notice of intent to submit such

an adverse comment, were received

within the comment period, the

regulation would become effective on

June 18, 1998. No adverse comments

were received, and thus this action

confirms that this direct final rule will

be effective on that date.

Issued in Fort Worth, TX, on May 5, 1998.

Albert L. Viselli,

Acting Manager, Air Traffic Division,

Southwest Region.

[FR Doc. 98–12711 Filed 5–12–98; 8:45 am]

BILLING CODE 4910–13–M

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 71

[Airspace Docket No. 98–ASW–19]

Revision of Class E Airspace; Gallup,

NM

AGENCY: Federal Aviation

Administration (FAA), DOT.

ACTION: Direct final rule; confirmation of

effective date.

SUMMARY: This notice confirms the

effective date of a direct final rule which

revises Class E airspace at Gallup

Municipal Airport, Gallup, NM.

EFFECTIVE DATE: The direct final rule

published at 63 FR 12989 is effective

0901 UTC, June 18, 1998.

FOR FURTHER INFORMATION CONTACT:

Donald J. Day, Airspace Branch, Air

Traffic Division, Southwest Region,

Federal Aviation Administration, Fort

Worth, TX 76193–0520, telephone: 817–

222–5593.

SUPPLEMENTARY INFORMATION: The FAA

published this direct final rule with a

request for comments in the Federal

Register on March 17, 1998 (63 FR

12989). The FAA uses the direct final

rulemaking procedure for a noncontroversial rule where the FAA

believes that there will be no adverse

public comment. This direct final rule

advised the public that no adverse

comments were anticipated, and that

unless a written adverse comment, or a

written notice of intent to submit such

an adverse comment, were received

within the comment period, the

regulation would become effective on

June 18, 1998. No adverse comments

were received, and thus this action

confirms that this direct final rule will

be effective on that date.

Issued in Fort Worth, TX, on May 5, 1998.

Albert L. Viselli,

Acting Manager, Air Traffic Division,

Southwest Region.

[FR Doc. 98–12712 Filed 5–12–98; 8:45 am]

BILLING CODE 4910–13–M

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 71

[Airspace Docket No. 98–ASW–20]

Revision of Class E Airspace; Eastland

Municipal, TX

AGENCY: Federal Aviation

Administration (FAA), DOT.

ACTION: Direct final rule; confirmation of

effective date.

SUMMARY: This notice confirms the

effective date of a direct final rule which

revises Class E airspace at Eastland

Municipal Airport, Eastland, TX.

EFFECTIVE DATE: The direct final rule

published at 63 FR 12988 is effective

0901 UTC, June 18, 1998.

FOR FURTHER INFORMATION CONTACT:

Donald J. Day, Airspace Branch, Air

Traffic Division, Southwest Region,

Federal Aviation Administration, Fort

Worth, TX 76193–0520, telephone: 817–

222–5593.

SUPPLEMENTARY INFORMATION: The FAA

published this direct final rule with a

request for comments in the Federal

Register on March 17, 1998 (63 FR

12988). The FAA uses the direct final

rulemaking procedure for a noncontroversial rule where the FAA

believes that there will be no adverse

public comment. This direct final rule

advised the public that no adverse

comments were anticipated, and that

unless a written adverse comment, or a

written notice of intent to submit such

an adverse comment, were received

within the comment period, the

regulation would become effective on

June 18, 1998. No adverse comments

were received, and thus this action

confirms that this direct final rule will

be effective on that date.

Issued in Fort Worth, TX, on May 5, 1998.

Albert L. Viselli,

Acting Manager, Air Traffic Division,

Southwest Region.

[FR Doc. 98–12713 Filed 5–12–98; 8:45 am]

BILLING CODE 4910–13–M

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 71

[Airspace Docket No. 97–ASW–28]

Revision of Class E Airspace;

Bartlesville, OK

AGENCY: Federal Aviation

Administration (FAA), DOT.

ACTION: Director final rule; confirmation

of effective date.

SUMMARY: This notice confirms the

effective date of a direct final rule which

revises Class E airspace at Bartlesville,

OK.

EFFECTIVE DATE: The direct final rule

published at 63 FR 12627 is effective

0901 UTC, June 18, 1998.

FOR FURTHER INFORMATION CONTACT:

Donald J. Day, Airspace Branch, Air

Traffic Division, Southwest Region,

Federal Aviation Administration, Fort

Worth, TX 76193–0520, telephone: 817–

222–5593.

SUPPLEMENTARY INFORMATION: The FAA

published this direct final rule with a

request for comments in the Federal

Register on March 16, 1998 (63 FR

12627). The FAA uses the direct final

rulemaking procedure for a noncontroversial rule where the FAA

believes that there will be no adverse

public comment. This direct final rule

advised the public that no adverse

comments were anticipated, and that

unless a written adverse comment, or a

written notice of intent to submit such

an adverse comment, were received

within the comment period, the

regulation would become effective on

June 18, 1998. No adverse comments

were received, and thus this action

confirms that this direct final rule will

be effective on that date.