Federal Register / Vol. 64, No. 4 /Thursday, January 7, 1999 /Rules and Regulations 989

performed in accordance with the new

operator’s schedule and inspection method.

(2) For airplanes that have not been

inspected in accordance with this AD, the

inspection of each SSI required by this AD

must be accomplished either prior to adding

the airplane to the air carrier’s operations

specification, or in accordance with a

schedule and an inspection method approved

by the Manager, Seattle ACO. After each

inspection has been performed once, each

subsequent inspection must be performed in

accordance with the new operator’s schedule.

(i)(1) 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, Seattle

ACO. Operators shall submit their requests

through an appropriate FAA Principal

Maintenance Inspector, who may add

comments and then send it to the Manager,

Seattle ACO.

Note 11: Information concerning the

existence of approved alternative methods of

compliance with this AD, if any, may be

obtained from the Seattle ACO.

(2) Alternative methods of compliance,

approved previously in accordance with AD

91–14–20, amendment 39–7061, are not

considered to be approved as alternative

methods of compliance with this AD.

(j) 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.

(k) The actions specified in paragraphs (b)

and (c) shall be done in accordance with

Boeing Document No. D6–37089,

‘‘Supplemental Structural Inspection

Document’’ (SSID), Revision D, dated June

1995, which contains the following list of

effective pages:

Page number shown on page

Revision

level shown

on page

List of Effective Pages .............. D

Pages 1 thru 10

(Note: The issue date of Revision D is

indicated only on the title page; no other

page of the document is dated.). This

incorporation by reference was approved

previously by the Director of the Federal

Register, in accordance with 5 U.S.C. 552(a)

and 1 CFR part 51, as of June 23, 1998 (63

FR 27465, May 19, 1998). Copies may be

obtained from Boeing Commercial Airplane

Group, P.O. Box 3707, Seattle, Washington

98124–2207. Copies may be inspected at the

FAA, Transport Airplane Directorate, 1601

Lind Avenue, SW., Renton, Washington; or at

the FAA, the FAA, Transport Airplane

Directorate, Los Angeles Aircraft Certification

Office, 3960 Paramount Boulevard,

Lakewood, California; or at the Office of the

Federal Register, 800 North Capitol Street,

NW., suite 700, Washington, DC.

(l) The effective date of this amendment

remains June 23, 1998.

Issued in Renton, Washington, on

December 30, 1998.

Darrell M. Pederson,

Acting Manager, Transport Airplane

Directorate, Aircraft Certification Service.

[FR Doc. 99–184 Filed 1–6–99; 8:45 am]

BILLING CODE 4910–13–U

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 96–NM–263–AD; Amendment

39–10983; AD 98–11–03 R1]

RIN 2120–AA64

Airworthiness Directives; Boeing

Model 727 Series Airplanes

AGENCY: Federal Aviation

Administration, DOT.

ACTION: Final rule; correction.

SUMMARY: This amendment corrects

information in an existing airworthiness

directive (AD), applicable to certain

Boeing Model 727 series airplanes, that

currently requires that the FAAapproved maintenance inspection

program be revised to include

inspections that will give no less than

the required damage tolerance rating for

each Structural Significant Item (SSI),

and repair of cracked structure. The

actions specified in that AD are

intended to ensure the continued

structural integrity of the entire Boeing

Model 727 fleet. This amendment

corrects the requirements of the current

AD by allowing operators not to change

their programs if they determine that the

existing inspections are effective for the

new or affected SSI. This amendment is

prompted by a review of the

requirements of the existing AD.

DATES: Effective June 23, 1998.

The incorporation by reference of a

certain publication, as listed in the

regulations, was approved previously by

the Director of the Federal Register as of

June 23, 1998 (63 FR 27455, May 19,

1998).

FOR FURTHER INFORMATION CONTACT:

Walter Sippel, Aerospace Engineer,

Airframe Branch, ANM–120S, FAA,

Seattle Aircraft Certification Office,

1601 Lind Avenue, SW., Washington;

telephone (425) 227–2774; fax (425)

227–1181.

SUPPLEMENTARY INFORMATION: On May

12, 1998, the FAA issued AD 98–11–03,

amendment 39–10530 (63 FR 27455,

May 19, 1998), which is applicable to

certain Boeing Model 727 series

airplanes. That AD requires that the

FAA-approved maintenance inspection

program be revised to include

inspections that will give no less than

the required damage tolerance rating for

each Structural Significant Item (SSI),

and repair of cracked structure. That

action was prompted by a structural reevaluation by the manufacturer that

identified additional structural elements

where, if damage were to occur,

supplemental inspections may be

required for timely detection. The

actions required by that AD are

intended to ensure the continued

structural integrity of the entire Boeing

Model 727 fleet.

AD 98–11–03 contains provisions

regarding when operators must revise

their maintenance or inspection

program to address SSI’s that are created

or affected by repairs and design

changes. As discussed in the preamble

to the final rule, the FAA intended that

such revisions be made only if a damage

tolerance assessment indicates that such

a change is necessary because existing

inspections are ineffective for the SSI.

Paragraph (d)(1) of the AD, applicable to

repairs and design changes

accomplished prior to the effective date

of the AD, properly states the FAA’s

intent. However, the FAA inadvertently

omitted a comparable provision in

paragraph (g), which applies to repairs

and design changes accomplished after

the effective date of the AD. As adopted,

paragraph (g) requires that operators

revise their maintenance programs

following repairs and design changes,

regardless of whether a damage

tolerance assessment indicates that the

existing applicable inspection continue

to be effective. Therefore, consistent

with the FAA’s intent, this correction is

necessary to allow operators not to

change their programs if they determine

that the existing inspections are

effective for the new or affected SSI.

Action is taken herein to correct these

requirements of AD 98–11–03 and to

correctly add the AD as an amendment

to section 39.13 of the Federal Aviation

Regulations (14 CFR 39.13).

The final rule is being reprinted in its

entirety for the convenience of affected

operators. The effective date remains

June 23, 1998.

Since this action only corrects a

current requirement, it has no adverse

economic impact and imposes no

additional burden on any person.

Therefore, notice and public procedures

hereon are unnecessary.

List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation

safety, Incorporation by reference,

Safety.
990 Federal Register / Vol. 64, No. 4 /Thursday, January 7, 1999 /Rules and Regulations

Adoption of the Correction

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

removing amendment 39–10530 (63 FR

27455, May 19, 1998), and by adding a

new airworthiness directive (AD),

amendment 39–10983, to read as

follows:

98–11–03 R1 Boeing: Amendment 39–

10983. Docket 96–NM–263–AD. Revises

AD 98–11–03: Amendment 39–10530.

Applicability: All Model 727 series

airplanes, certificated in any category.

Compliance: Required as indicated, unless

accomplished previously.

To ensure the continued structural

integrity of the entire Boeing Model 727 fleet,

accomplish the following:

Note 1: Where there are differences

between the AD and the Supplemental

Structural Inspection Document, the AD

prevails.

(a) For airplanes listed in Section 3.0 of

Boeing Document No. D6–48040–1,

‘‘Supplemental Structural Inspection

Document’’ (SSID), Revision E, dated June

21, 1983: Within 12 months after November

1, 1984 (the effective date of AD 84–21–05,

amendment 39–4920), incorporate a revision

into the FAA-approved maintenance

inspection program which provides no less

than the required damage tolerance rating

(DTR) for each Structural Significant Item

(SSI) listed in that document. (The required

DTR value for each SSI is listed in the

document.) The revision to the maintenance

program shall include and shall be

implemented in accordance with the

procedures in Sections 5.0 and 6.0 of the

SSID. This revision shall be deleted

following accomplishment of the

requirements of paragraph (b) of this AD.

Note 2: For the purposes of this AD, an SSI

is defined as a principal structural element

that could fail and consequently reduce the

structural integrity of the airplane.

(b) Prior to reaching the threshold specified

in paragraph (c) of this AD, or within 12

months after the effective date of this AD,

whichever occurs later, incorporate a

revision into the FAA-approved maintenance

or inspection program that provides no less

than the required DTR for each SSI listed in

Boeing Document No. D6–48040–1, Volumes

1 and 2, ‘‘Supplemental Structural Inspection

Document’’ (SSID), Revision H, dated June

1994 (hereinafter referred to as ‘‘Revision

H’’). (The required DTR value for each SSI is

listed in the document.) Except as provided

to the contrary in paragraphs (c), (d), and (g)

of this AD, the revision to the maintenance

or inspection program shall include and shall

be implemented in accordance with the

procedures in Section 5.0, ‘‘Damage

Tolerance Rating (DTR) System Application’’

and Section 6.0, ‘‘SSI Discrepancy

Reporting’’ of Revision H. Upon

incorporation of the revision required by this

paragraph, the revision required by

paragraph (a) of this AD may be deleted.

(c) Except as provided in paragraph (d), (e),

or (g) of this AD, perform an inspection to

detect cracks in all structure identified in

Revision H at the time specified in paragraph

(c)(1) or (c)(2) of this AD, as applicable.

(1) For Model 727–100C and 727–200F

series airplanes: Inspect prior to the

accumulation of 46,000 total flight cycles, or

within 3,000 flight cycles measured from the

date 12 months after the effective date of this

AD, whichever occurs later.

Note 3: The requirements specified by

paragraph (c)(1) of this AD only apply to

airplanes listed as 727–100C and 727–200F

on the type certificate data sheet. Paragraph

(c)(1) does not apply to airplanes that have

been modified from a passenger

configuration to an all-cargo configuration by

supplemental type certificate (STC).

Paragraphs (c)(2) and (d) apply to those

airplanes.

(2) For all airplanes, except for those

airplanes identified in paragraph (c)(1) of this

AD: Inspect prior to the accumulation of

55,000 total flight cycles, or within 3,000

flight cycles measured from the date 12

months after the effective date of this AD,

whichever occurs later.

Note 4: Notwithstanding the provisions of

paragraphs 5.1.1, 5.1.2, 5.1.6(e), 5.1.11,

5.1.12, 5.1.13, 5.2, 5.2.1, 5.2.2, 5.2.3, and

5.2.4 of the General Instructions of Revision

H, which would permit operators to perform

fleet and rotational sampling inspections, to

perform inspections on less than whole

airplane fleet sizes and to perform

inspections on substitute airplanes, this AD

requires that all airplanes that exceed the

threshold be inspected in accordance with

Revision H.

Note 5: Once the initial inspection has

been performed, operators are required to

perform repetitive inspections at the intervals

specified in Revision H in order to remain in

compliance with their maintenance or

inspection programs, as revised in

accordance with paragraph (b) of this AD.

(d) For airplanes on which the structure

identified in Revision H has been physically

altered in accordance with an STC prior to

the effective date of this AD: Accomplish the

requirements specified in paragraph (d)(1) or

(d)(2) of this AD.

(1) Within 18 months after the effective

date of this AD, assess the damage tolerance

characteristics of each SSI created or affected

by each STC to determine the effectiveness

of the applicable Revision H inspection for

each SSI and, if not effective, revise the FAAapproved maintenance or inspection program

to include an inspection method for each

new or affected SSI, and to include the

compliance times for initial and repetitive

accomplishment of each inspection.

Following accomplishment of the revision

and within the compliance times established,

perform an inspection to detect cracks in the

structure affected by any design change or

repair, in accordance with the new

inspection method. The new inspection

method and the compliance times shall be

approved by the Manager, Seattle Aircraft

Certification Office (ACO), FAA, Transport

Airplane Directorate.

Note 6: For purposes of this AD, an SSI is

‘‘affected’’ if it has been physically altered or

repaired, or if the loads acting on the SSI

have been increased or redistributed. The

effectiveness of the applicable inspection

method and compliance time should be

determined based on a damage tolerance

assessment methodology, such as that

described in FAA Advisory Circular AC No.

91–56, Change 2, dated April 15, 1983.

(2) Accomplish paragraphs (d)(2)(i),

(d)(2)(ii), and (d)(2)(iii) of this AD.

(i) Within 18 months after the effective

date of this AD, submit a plan that describes

a methodology for accomplishing the

requirements of paragraph (d)(1) of this AD

to the Manager, Seattle ACO, 1601 Lind

Avenue, SW., Renton, Washington 98055–

4056; fax (425) 227–1181.

Note 7: The plan should include a detailed

description of the STC; methodology for

identifying new or affected SSI’s; method for

developing loads and validating the analysis;

methodology for evaluating and analyzing

the damage tolerance characteristics of each

new or affected SSI; and proposed inspection

method. The plan would not need to include

all of these elements if the operator can

otherwise demonstrate that its plan will

enable the operator to comply with paragraph

(d)(2)(iii) of this AD.

(ii) Within 18 months after the effective

date of this AD, perform a detailed visual

inspection in accordance with a method

approved by the Manager, Seattle ACO to

detect cracks in all structure identified in

Revision H that has been altered by an STC.

(A) If no crack is detected, repeat the

detailed visual inspection thereafter at

intervals not to exceed 18 months.

(B) If any crack is detected, prior to further

flight, repair it in accordance with a method

approved by the Manager, Seattle ACO.

(iii) Within 48 months after the effective

date of this AD, revise the FAA-approved

maintenance or inspection program to

include an inspection method for each new

or affected SSI, and to include the

compliance times for initial and repetitive

accomplishment of each inspection. The

inspection methods and the compliance

times shall be approved by the Manager,

Seattle ACO. Accomplishment of the actions

specified in this paragraph constitutes

terminating action for the repetitive

inspection requirements of paragraph

(d)(2)(ii)(A) of this AD.

Note 8: Notwithstanding the provisions of

paragraphs 5.1.17 and 5.1.18 of the General

Instructions of Revision H, which would

permit deletions of modified, altered, or

repaired structure from the SSIP, the

inspection of SSI’s that are modified, altered,

or repaired shall be done in accordance with
Federal Register / Vol. 64, No. 4 /Thursday, January 7, 1999 /Rules and Regulations 991

a method approved by the Manager, Seattle

ACO.

(e) For airplanes on which the structure

identified in Revision H has been repaired or

physically altered by any design change other

than an STC identified in paragraph (d), prior

to the effective date of this AD: At the time

of the first inspection of each SSI after the

effective date of this AD in accordance with

Revision H, identify each repair or design

change to that SSI. Within 12 months after

such identification, assess the damage

tolerance characteristics of each SSI created

or affected by each repair or design change

to determine the effectiveness of the

applicable SSID inspection for each SSI and,

if not effective, revise the FAA-approved

maintenance or inspection program to

include an inspection method and

compliance times for each new or affected

SSI. The new inspection method and the

compliance times shall be approved by the

Manager, Seattle ACO.

Note 9: For the purposes of this AD, a

design change is defined as any modification,

alteration, or change to operating limitations.

(f) Except as provided in paragraph

(d)(2)(ii)(B) of this AD, cracked structure

found during any inspection required by this

AD shall be repaired, prior to further flight,

in accordance with an FAA-approved

method.

(g) For airplanes on which the structure

identified in Revision H is affected by any

design change (including STC’s) or repair

that is accomplished after the effective date

of this AD: Within 12 months after that

modification, alteration, or repair, assess the

damage tolerance characteristics of each SSI

created or affected by each repair or design

change to determine the effectiveness of the

applicable SSID inspection for each SSI and,

if not effective, revise the FAA-approved

maintenance or inspection program to

include an inspection method and

compliance times for each new or affected

SSI, and to include the compliance times for

initial and repetitive accomplishment of each

inspection. The new inspection method and

the compliance times shall be approved by

the Manager, Seattle ACO.

Note 10: Notwithstanding the provisions of

paragraphs 5.1.17 and 5.1.18 of the General

Instructions of Revision H, which would

permit deletions of modified, altered, or

repaired structure from the SIP, the

inspection of SSI’s that are modified, altered,

or repaired shall be done in accordance with

a method approved by the Manager, Seattle

ACO.

(h) Before any airplane that is subject to

this AD and that has exceeded the applicable

compliance times specified in paragraph (c)

of this AD can be added to an air carrier’s

operations specifications, a program for the

accomplishment of the inspections required

by this AD must be established in accordance

with paragraph (h)(1) or (h)(2) of this AD, as

applicable.

(1) For airplanes that have been inspected

in accordance with this AD, the inspection of

each SSI must be accomplished by the new

operator in accordance with the previous

operator’s schedule and inspection method,

or the new operator’s schedule and

inspection method, whichever would result

in the earlier accomplishment date for that

SSI inspection. The compliance time for

accomplishment of this inspection must be

measured from the last inspection

accomplished by the previous operator. After

each inspection has been performed once,

each subsequent inspection must be

performed in accordance with the new

operator’s schedule and inspection method.

(2) For airplanes that have not been

inspected in accordance with this AD, the

inspection of each SSI required by this AD

must be accomplished either prior to adding

the airplane to the air carrier’s operations

specification, or in accordance with a

schedule and an inspection method approved

by the Manager, Seattle ACO. After each

inspection has been performed once, each

subsequent inspection must be performed in

accordance with the new operator’s schedule.

(i)(1) 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, Seattle

ACO. Operators shall submit their requests

through an appropriate FAA Principal

Maintenance Inspector, who may add

comments and then send it to the Manager,

Seattle ACO.

Note 11: Information concerning the

existence of approved alternative methods of

compliance with this AD, if any, may be

obtained from the Seattle ACO.

(2) Alternative methods of compliance,

approved previously in accordance with AD

84–21–05, amendment 39–4920, are not

considered to be approved as alternative

methods of compliance with this AD.

(j) 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.

(k) The actions specified in paragraphs (b)

and (c) shall be done in accordance with

Boeing Document No. D6–48040–1, Volumes

1 and 2, ‘‘Supplemental Structural Inspection

Document’’ (SSID), Revision H, dated June

1994, which contains the following list of

effective pages:

Page number shown on page

Revision

level shown

on page

List of Active Pages .................. H

Pages 1 thru 17.2

(Note: The issue date of Revision H is

indicated only on the title page; no other

page of the document is dated.). This

incorporation by reference was approved

previously by the Director of the Federal

Register, in accordance with 5 U.S.C. 552(a)

and 1 CFR part 51, as of June 23, 1998 (63

FR 27455, May 19, 1998). Copies may be

obtained from Boeing Commercial Airplane

Group, P.O. Box 3707, Seattle, Washington

98124–2207. 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.

(l) The effective date of this amendment

remains June 23, 1998.

Issued in Renton, Washington, on

December 30, 1998.

Darrell M. Pederson,

Acting Manager, Transport Airplane

Directorate, Aircraft Certification Service.

[FR Doc. 99–183 Filed 1–6–99; 8:45 am]

BILLING CODE 4910–13–P

DEPARTMENT OF HEALTH AND

HUMAN SERVICES

Food and Drug Administration

21 CFR Part 558

New Animal Drugs for Use in Animal

Feeds; Oxytetracycline and Neomycin;

Technical Amendment

AGENCY: Food and Drug Administration,

HHS.

ACTION: Final rule.

SUMMARY: The Food and Drug

Administration (FDA) is amending the

animal drug regulations concerning

antibiotic, nitrofuran, and sulfonamide

drugs in the feed of animals. The entry

for type A medicated article

oxytetracycline and neomycin is

amended to reflect that the sponsor of

the product is Pfizer, Inc., not HoffmanLa Roche, Inc. Also, the entry for use of

type A medicated article oxytetracycline

and neomycin base for type C turkey

feeds, when used as an aid in reducing

mortality in birds which have suffered

an attack of air-sacculitis, is amended to

change the neomycin use level from 35

to 100 grams (g) of neomycin base per

ton of feed to 35 to 105 g/ton.

EFFECTIVE DATE: January 7, 1999.

FOR FURTHER INFORMATION CONTACT:

Dianne T. McRae, Center for Veterinary

Medicine (HFV–102), Food and Drug

Administration, 7500 Standish Pl.,

Rockville, MD 20855, 301–827–0212.

SUPPLEMENTARY INFORMATION: FDA is

amending the animal drug regulations

in 21 CFR 558.15(g)(1) concerning

antibiotic, nitrofuran, and sulfonamide

drugs in the feed of animals. Previously,

for use of type A medicated article

oxytetracycline and neomycin, FDA had

amended the regulations to remove

several entries for Pfizer, Inc. (see 61 FR

51588 at 51590, October 3, 1996). The

amendment failed to change the ‘‘do’’

for the remaining entry to ‘‘Pfizer, Inc.’’

This document provides for that change.

Also, in paragraph (g)(2), in the entry

for drug sponsors ‘‘Pfizer, Pennfield,

and VPO,’’ for type A medicated article

‘‘Oxytetracycline and neomycin base,’’

in species ‘‘Turkeys (first 4 weeks),’’ the

use level for use as an aid in reducing