Federal Register / Vol. 66, No. 106 / Friday, June 1, 2001 / Rules and Regulations 29691

TABLE 1.—CFM56 ENGINES WITH SUSPECT NO. 4 BEARINGS—Continued

Part No. Part serial

No.

Engine

model

Engine serial

No.

305–355–717–0 ................................................................................................................................... DB387589–U 7B 877427

305–355–717–0 ................................................................................................................................... DB387656–O 7B 875232

305–355–717–0 ................................................................................................................................... DB387671–4 7B 874219

Replacement of Suspect No. 4 Bearings

(b) For engines that have a suspect No. 4

bearing that has a SN listed in Table 1 of this

AD, replace the No. 4 bearing with a

serviceable part within 2,000 hours TIS, after

the effective date of this AD, but no later than

December 31, 2001, whichever occurs earlier.

Installation of Suspect No. 4 Bearings

(c) After the effective date of this AD, do

not install any No. 4 bearing that has a SN

listed in Table 1 of this AD.

(d) After the effective date of this AD, do

not install any engine that has a No. 4 bearing

with a serial number listed in Table 1 of this

AD.

Initial Inspections for Chip Detector

Indications

(e) For engines that have a suspect No. 4

bearing that has a SN listed in Table 1 of this

AD, inspect for magnetic chip indications

within in the specified times, and if

necessary, disposition as follows:

(1) For CFM56–5B engines, check

electronic magnetic chip detector (EMCD)

visual indicator within 50 to 75 hours TIS

after the effective date of this AD.

(2) For CFM56–5C engine (741948), check

for class 2 Electronic Centralized Aircraft

Monitor (ECAM) message ‘‘MAGNETIC CHIP

DETECTED’’ before further flight.

(3) For CFM56–7B engines equipped with

Debris Monitoring System (DMS) option,

check Flight Management Computer—Master

Control Display Unit (FMC–MCDU) for

message 79–2114 before further flight.

(4) For CFM56–7B engines equipped with

classic magnetic chip detectors (MCD),

inspect aft sump MCD within 50 to 75 hours

TIS after the effective date of this AD.

(5) For CFM56–2, –2B, and –3 engines,

inspect aft sump MCD within 50 to 75 hours

TIS after the effective date of this AD.

(6) If bearing particles are found, remove

engine from service before further flight.

Repetitive Inspections for Chip Detector

Indications

(f) Thereafter, inspect for chip indications

in accordance with the specified time-sincelast-inspection (TSLI), and if necessary,

disposition as follows:

(1) For CFM56–5B engines, check EMCD

visual indicator every 50–75 hours TSLI.

(2) For CFM56–5C engine (741948), check

for class 2 ECAM message ‘‘MAGNETIC CHIP

DETECTED’’ after every flight.

(3) For CFM56–7B engines equipped with

DMS option, check FMC–MCDU for message

79–2114 once per day.

(4) For CFM56–7B engines equipped with

classic MCD, inspect aft sump MCD every

50–75 hours TSLI.

(5) For CFM56–2, –2B, and –3 engines,

inspect aft sump MCD every 50–75 hours

TSLI.

(6) If bearing particles are found, remove

engine from service before further flight.

Terminating Action

(g) Replacement of a No. 4 bearing that has

a SN listed in Table 1 of this AD with a No.

4 bearing that does not have a SN listed in

Table 1 of this AD is terminating action for

the repetitive inspection requirements

specified in paragraph (f) of this AD.

Alternative Methods of Compliance

(h) 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, Engine

Certification Office. Operators shall submit

their request through an appropriate FAA

Principal Maintenance Inspector, who may

add comments and then send it to the

Manager, Engine Certification Office.

Note 2: Information concerning the

existence of approved alternative methods of

compliance with this airworthiness directive,

if any, may be obtained from the Engine

Certification Office.

Special Flight Permits

(i) Special flight permits may be issued in

accordance §§ 21.197 and 21.199 of the

Federal Aviation Regulations (14 CFR 21.197

and 21.199) to operate the aircraft to a

location where the requirements of this AD

can be accomplished.

Effective Date of This AD

(j) This amendment becomes effective on

June 11, 2001.

Issued in Burlington, Massachusetts, on

May 24, 2001.

Thomas A. Boudreau,

Acting Manager, Engine and Propeller

Directorate, Aircraft Certification Service.

[FR Doc. 01–13720 Filed 5–31–01; 8:45 am]

BILLING CODE 4910–13–U

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 71

[Airspace Docket No. 01–ACE–2]

Amendment to Class E Airspace;

Phillipsburg, KS

AGENCY: Federal Aviation

Administration, DOT.

ACTION: Direct final rule; confirmation of

effective date.

SUMMARY: This document confirms the

effective date of a direct final rule which

revises Class E airspace at Phillipsburg,

KS.

EFFECTIVE DATE: 0901 UTC, July 12,

2001.

FOR FURTHER INFORMATION CONTACT:

Kathy Randolph, Air Traffic Division,

Airspace Branch, ACE–520C, DOT

Regional Headquarters Building, Federal

Aviation Administration, 901 Locust,

Kansas City, MO 64106; telephone:

(816) 329–2525.

SUPPLEMENTARY INFORMATION: The FAA

published this direct final rule with a

request for comments in the Federal

Register on March 2, 2001 (66 FR

13011). 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

July 12, 2001. No adverse comments

were received, and thus this notice

confirms that this direct final rule will

become effective on that date.

Issued in Kansas City, MO, on May 9, 2001.

Richard L. Day,

Acting Manager, Air Traffic Division, Central

Region.

[FR Doc. 01–13673 Filed 5–31–01; 8:45 am]

BILLING CODE 4910–13–M

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 97

[Docket No. 30249; Amdt. No. 2052]

Standard Instrument Approach

Procedures; Miscellaneous

Amendments

AGENCY: Federal Aviation

Administration (FAA), DOT.

ACTION: Final rule.