[Federal Register Volume 67, Number 72 (Monday, April 15, 2002)]
[Proposed Rules]
[Pages 18141-18145]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 02-8989]


 ========================================================================
 Proposed Rules
                                                 Federal Register
 ________________________________________________________________________
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 This section of the FEDERAL REGISTER contains notices to the public of 
 the proposed issuance of rules and regulations. The purpose of these 
 notices is to give interested persons an opportunity to participate in 
 the rule making prior to the adoption of the final rules.
 
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  Federal Register / Vol. 67, No. 72 / Monday, April 15, 2002 / 
Proposed Rules  

[[Page 18141]]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 2000-CE-79-AD]
RIN 2120-AA64


Airworthiness Directives; Univair Aircraft Corporation Models 
(ERCO) 415-C, (ERCO) 415-CD, (ERCO) 415-D, (ERCO) 415-E, (ERCO) 415-G, 
(Forney) F-1, and (Forney) F-1A Airplanes

AGENCY: Federal Aviation Administration, DOT.

ACTION: Supplemental notice of proposed rulemaking (NPRM); Reopening of 
the comment period.

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SUMMARY: This document proposes to revise an earlier proposed 
airworthiness directive (AD) that would have superseded Airworthiness 
Directive (AD) 86-22-09 and would have applied to all Univair Aircraft 
Corporation Models (ERCO) 415-C, (ERCO) 415-CD, (ERCO) 415-D, (ERCO) 
415-E, (ERCO) 415-G, (Forney) F-1, and (Forney) F-1A airplanes with the 
gascolator connected to the side of the carburetor. The earlier NPRM 
would have required you to replace any aluminum fuel line nipple with a 
brass or steel fuel line nipple, inspect for the existence of double 
support tubes on the gascolator, and install these tubes if they do not 
exist. Since issuance of the NPRM, we have determined that we should: 
supersede AD 46-38-03 and incorporate the actions of that AD into the 
proposed AD, require a one-time inspection of the fuel line fittings, 
incorporate revised service information into the AD, and reduce the 
compliance time. Since these actions impose an additional burden over 
that proposed in the NPRM, we are reopening the comment period to allow 
the public the chance to comment on these additional actions.

DATES: The Federal Aviation Administration (FAA) must receive any 
comments on this proposed rule on or before May 30, 2002.

ADDRESSES: Submit comments to FAA, Central Region, Office of the 
Regional Counsel, Attention: Rules Docket No. 2000-CE-79-AD, 901 
Locust, Room 506, Kansas City, Missouri 64106. You may view any 
comments at this location between 8 a.m. and 4 p.m., Monday through 
Friday, except Federal holidays. You may also send comments 
electronically to the following address: [email protected]. 
Comments sent electronically must contain ``Docket No. 2000-CE-79-AD'' 
in the subject line. If you send comments electronically as attached 
electronic files, the files must be formatted in Microsoft Word 97 for 
Windows or ASCII text.
    You may get service information that applies to this proposed AD 
from Univair Aircraft Corporation, 2500 Himalaya Road, Aurora, Colorado 
80011; telephone: (303) 375-8882; facsimile: (303) 375-8888. You may 
also view this information at the Rules Docket at the address above.

FOR FURTHER INFORMATION CONTACT: Elizabeth Bumann, Aerospace Engineer, 
FAA, Denver Aircraft Certification Office, 26805 East 68th Avenue, Room 
214, Denver, Colorado 80249; telephone: (303) 342-1083; facsimile: 
(303) 342-1088.

SUPPLEMENTARY INFORMATION:

Comments Invited

    How do I comment on this proposed AD? The FAA invites comments on 
this proposed rule. You may submit whatever written data, views, or 
arguments you choose. You need to include the rule's docket number and 
submit your comments to the address specified under the caption 
ADDRESSES. We will consider all comments received on or before the 
closing date. We may amend this proposed rule in light of comments 
received.
    Factual information that supports your ideas and suggestions is 
extremely helpful in evaluating the effectiveness of this proposed AD 
action and determining whether we need to take additional rulemaking 
action.
    Are there any specific portions of this proposed AD I should pay 
attention to? The FAA specifically invites comments on the overall 
regulatory, economic, environmental, and energy aspects of this 
proposed rule that might suggest a need to modify the rule. You may 
view all comments we receive before and after the closing date of the 
rule in the Rules Docket. We will file a report in the Rules Docket 
that summarizes each contact we have with the public that concerns the 
substantive parts of this proposed AD.
    How can I be sure FAA receives my comment? If you want FAA to 
acknowledge the receipt of your comments, you must include a self-
addressed, stamped postcard. On the postcard, write ``Comments to 
Docket No. 2000-CE-79-AD.'' We will date stamp and mail the postcard 
back to you.

Discussion

    What is the background of the subject matter? Reports of fuel 
leakage due to cracked fuel line nipples on Univair 415 series and 
Models F1 and F1A airplanes caused FAA to issue AD 86-22-09, Amendment 
39-5457. This AD requires you to accomplish the following on Univair 
Models (ERCO) 415-C, (ERCO) 415-CD, (ERCO) 415-D, (ERCO) 415-E, (ERCO) 
415-G, (Forney) F-1, and (Forney) F-1A airplanes:

--Inspect the fuel line nipple between the gascolator and the 
carburetor for cracks or misalignment; and
--Replace any suspect part.

    These actions are specified in Univair Service Bulletin No. 24A, 
dated August 22, 1986.
    The FAA has received reports of failure of the aluminum fuel line 
nipple, part number AN911-2D, on airplanes that were in compliance with 
AD 86-22-09. In one instance, a Model (ERCO) 415-C made an emergency 
landing because the failure led to engine fuel starvation.
    AD 86-22-09 requires a one-time inspection of the part number 
AN911-2D fuel line nipple. Since 15 years have passed since issuance of 
that AD, most of the affected airplanes have had this inspection 
accomplished. If the fuel line nipple was not suspect at the time of 
inspection, then final AD compliance was obtained. In 15 years, cracks 
could develop in the aluminum fuel line nipple on these airplanes in 
compliance with AD 86-22-09.
    In addition, Univair Service Bulletin No. 24A, dated August 22, 
1986, also specifies replacing any aluminum fuel line nipple with a 
brass or steel fuel line nipple and installing double support tubes on 
the gascolator for those airplanes with a gascolator connected to

[[Page 18142]]

the side of the carburetor. AD 86-22-09 required the fuel line nipple 
replacement only if damage was found during the one-time inspection and 
did not require installation of the double support tubes.
    What is the potential impact if FAA took no action? This condition, 
if not corrected, could result in failure of the fuel line fittings or 
the gascolator because of the current airplane design configuration 
(aluminum fuel line nipples, aluminum fuel line elbows, and/or no 
double support tubes on the gascolator). Such failure could result in a 
lack of fuel to the engine with consequent loss of control of the 
airplane.
    Has FAA taken any action to this point? We issued a proposal to 
amend part 39 of the Federal Aviation Regulations (14 CFR part 39) to 
include an AD that would apply to certain Univair (ERCO) 415-C, (ERCO) 
415-CD, (ERCO) 415-D, (ERCO) 415-E, (ERCO) 415-G, (Forney) F-1, and 
(Forney) F-1A airplanes. This proposal was published in the Federal 
Register as a notice of proposed rulemaking (NPRM) on October 4, 2001 
(66 FR 50578). The NPRM proposed to supersede AD 86-22-09 with a new AD 
that would require you to accomplish the following on airplanes with 
the gascolator connected to the side of the carburetor:

--Replace any aluminum fuel line nipple with a brass or steel fuel line 
nipple; and
--Inspect for the existence of double support tubes on the gascolator 
and install these tubes if they do not exist.

    The proposed AD would not affect those airplanes with the 
gascolator mounted on the firewall.
    Was the public invited to comment? The FAA encouraged interested 
persons to participate in the making of this amendment. The following 
presents the comments received on the proposal and FAA's response to 
each comment:

Comment Issue No. 1: Several ADs Already Address the Unsafe 
Condition

    What is the commenter's concern? One commenter states that the 
proposed AD is unnecessary because the unsafe condition is already 
addressed in other AD actions and through manufacturer service 
memorandums and service bulletins. In particular, the commenter states 
that AD 86-22-09 requires replacement of the aluminum nipple because 
that is specified in Mandatory Service Bulletin 24A, dated August 22, 
1986. The commenter further believes that AD 86-22-09 requires 
installation of the double support brackets because the installation is 
referenced in the service information. The commenter believes that FAA 
is proposing this AD to point out that owners and mechanics are not 
complying with existing ADs and service bulletins. The commenter 
recommends that we withdraw the NPRM.
    What is FAA's response to the concern? We do not concur. AD 86-22-
09 requires a one-time inspection of the aluminum AN911-2D fuel line 
nipples with replacement if necessary. After inspection or replacement, 
this AD requires no further action and, if the fuel line nipple was not 
found damaged, then the replacement was not required. We have received 
reports of failure of the aluminum fuel nipple on airplanes that are in 
compliance with AD 86-22-09. The only way we can mandate the actions of 
a manufacturer's service bulletin is through the issuance of an AD. 
Therefore, we are not withdrawing this NPRM.
    After carefully reviewing all incident reports concerning this 
subject, we have also determined that we should add to the NPRM a 
requirement for a one-time visual inspection of the fuel line fittings 
between the carburetor and gascolator for cracks and misalignment (with 
any necessary replacement).
    Since this addition to the NPRM increases the burden over that 
already proposed, we are issuing this action as a supplemental NPRM and 
reopening the comment period to allow the public the chance to comment.

Comment Issue No. 2: Include Actions To Address the Fuel Nipple and 
Elbow Between the Gascolator and Carburetor

    What is the commenter's concern? Two commenters suggest that FAA 
address in the NPRM the areas of the fuel nipple and elbow between the 
gascolator and carburetor. This suggestion is based on service 
experience of both commenters' airplanes. Although one commenter 
recommends no specific action, we infer that this commenter wants us to 
consider the elbow when ensuring that no aluminum fuel line fittings 
are installed between the gascolator and carburetor.
    What is FAA's response to the concern? We concur that the elbow and 
nipple aluminum fittings located in the area between the gascolator and 
carburetor are susceptible to the same failure and the proposed action 
should address both. AD 46-38-03 currently requires a one-time 
replacement of the aluminum elbow fittings for certain Univair (ERCO) 
415-C, (ERCO) 415--CD, and (ERCO) 415-D airplanes. We have determined 
that the proposed action should supersede AD 46-38-03, should retain 
this one-time replacement for the above-referenced airplanes, and 
should extend the replacement to all airplanes affected by this 
proposed action.
    Since this addition to the NPRM increases the burden over that 
already proposed, we are issuing this action as a supplemental NPRM and 
reopening the comment period to allow the public the chance to comment.

Comment Issue No. 3: Only Require Installation of Steel Fuel Line 
Elbows and Nipples

    What is the commenter's concern? One commenter recommends that FAA 
only allow the installation of steel fuel line elbows and nipples. This 
commenter relates an experience where a brass elbow failed because 
brass does not have the same destruction resilience as steel under 
vibration conditions.
    What is FAA's response to the concern? We do not concur. Although 
brass is softer than steel, FAA's analysis of the service history 
indicates that the installation of a brass fuel line elbow or nipple 
provides an acceptable level of safety when support tubes are installed 
and the fittings are properly aligned.
    The support tube installation is proposed in this action and the 
proper alignment of the fittings is part of the installation procedures 
of the proposed AD.

Comment Issue No. 4: Require a Rubber Cushion Between the Adel 
Clamp and the Gascolator

    What is the commenter's concern? One commenter communicates a 
problem with the rigid bracing at the far end of the gascolator. This 
commenter states that the only attach point for the entire assembly to 
the engine is the two studs that attach the spider manifold to the 
engine. This attachment is a shock mounting to the engine, which 
absorbs some vibration. The commenter states that, with this 
configuration, the gascolator at the end of the line is bound to have 
vibration, which is stopped by the rigid bracing. The commenter also 
states that the weak part of the gascolator system picks up this 
vibration load. The commenter recommends that FAA propose to require 
the installation of a rubber cushion between the adel clamp and the 
gascolator to absorb this vibration load.
    What is FAA's response to the concern? We do not concur that a 
rubber cushion should be installed between the adel clamp and the 
gascolator on the affected airplanes. Our review of the service history 
of these airplanes indicates that the current configuration is an 
airworthy design.

[[Page 18143]]

    We are not changing the proposed rule as a result of this comment.

Comment Issue No. 5: Reduce the Compliance Time to ``Prior to 
Further Flight''

    What is the commenter's concern? One commenter wants FAA to revise 
the compliance time from 50 hours time-in-service (TIS) to prior to 
further flight. This commenter states that the affected airplanes are 
not airworthy without gascolator support tubes because the only support 
is aluminum fuel line fittings. The commenter further communicates the 
following:

--If a failure is a complete breakage of one of the aluminum fittings, 
the fuel will drain into the engine compartment from the fuselage tank;
--The fuel pump will continue to pump fuel from the wing tanks into the 
fuselage tank, which will continue to drain into the engine compartment 
until the engine quits;
--The engine will quit within seconds and give the pilot very little 
time to find a safe landing place;
--Up to six gallons of fuel could drain into the engine compartment if 
the pilot fails to remember to shut off the main fuel valve; and
--If an aluminum fuel line fitting cracks and leaks fuel, then this 
fuel or vapors could come too close to the hot exhausts and create a 
fire.

    What is FAA's response to the concern? The FAA partially concurs. 
Things we consider in determining the type of action to take include 
the nature of the problem, the service history, the way the airplanes 
are used, and the logistics of having the action accomplished on the 
entire airplane fleet. Based on this, we have determined that we do not 
have justification for a ``prior to further flight'' compliance time. 
However, because a significant percentage of the affected airplanes are 
used for personal recreation and accumulate an average of 35 to 40 
hours TIS per year, we are proposing a change in the compliance time 
from 50 hours TIS to 25 hours TIS.
    Since this change to the NPRM increases the burden over that 
already proposed, we are issuing this action as a supplemental NPRM and 
reopening the comment period to allow the public the chance to comment.

Comment Issue No. 6: Reference a Later Revision of the Service 
Information

    What is the commenter's concern? Since issuance of the NPRM, 
Univair has revised the service information (Univair Service Bulletin 
No. 24B, dated January 29, 2002) for this action. This service bulletin 
revision includes detailed instructions for installing and adjusting 
the gascolator support braces, includes proper brace numbers for all 
affected airplane models, and specifies the option of replacing the 
existing glass bowl gascolator with an all-metal gascolator. Univair 
requests that FAA incorporate this service bulletin into the proposed 
AD.
    What is FAA's response to the concern? We will incorporate this 
service bulletin into the proposed AD. However, we will not reference 
the all-metal gascolator optional installation since it is not the 
subject matter of this proposed AD.

Comment Issue No. 7: Make the AD Apply to All Aluminum Fuel Line 
Nipples

    What is the commenter's concern? One commenter requests that we 
remove reference to the part number of the aluminum fuel line nipple. 
The commenter states that any fuel line nipple made from aluminum 
should be replaced with an AN911-2 fitting made of steel or brass. The 
commenter states that removing this reference would ensure that no 
aluminum fittings are installed between the gascolator and the 
carburetor
    What is FAA's response to the concern? We concur and will change 
the proposed AD accordingly.

The FAA's Determination

    What has FAA decided? After examining the circumstances and 
reviewing all available information related to the incidents described 
above, we have determined that the NPRM should be expanded to include:

--A one-time inspection of the fuel line fittings;
--Replacement of the aluminum elbow fittings;
--The incorporation of Univair Service Bulletin No. 24B, dated January 
29, 2002; and
--A change in the compliance time from 50 hours TIS to 25 hours TIS.

The Supplemental NPRM

    How will the changes to the NPRM impact the public? Proposing that 
the NPRM incorporate these additions and changes presents actions that 
go beyond the scope of what was already proposed. Therefore, we are 
issuing a supplemental NPRM and reopening the comment period to allow 
the public additional time to comment on the proposed AD.
    What are the provisions of the supplemental NPRM? The proposed AD 
would supersede AD 86-22-09 and AD 46-38-03 and would require you to:

--Replace any aluminum fuel line nipple with a brass or steel fuel line 
nipple;
--Replace any aluminum elbow fitting with a brass or steel elbow 
fitting;
--Inspect for the existence of double support tubes on the gascolator, 
and install these tubes if they do not exist; and
--Inspect the fuel line fittings between the carburetor and gascolator 
for cracks or misalignment and replace as necessary.

Cost Impact

    How many airplanes would this proposed AD impact? We estimate that 
this proposed AD would affect 2,500 airplanes in the U.S. registry.
    What would be the cost impact of this proposed AD on owners/
operators of the affected airplanes? We estimate the following costs to 
accomplish the proposed inspection, replacements, and installation:

----------------------------------------------------------------------------------------------------------------
                                                                                                   Total cost on
              Labor cost                 Parts cost             Total cost per airplane           U.S. operators
----------------------------------------------------------------------------------------------------------------
2 workhours at $60 per hour = $120...             $70  $190 per airplane........................        $475,000
----------------------------------------------------------------------------------------------------------------

Regulatory Impact

    Would this proposed AD impact various entities? The regulations 
proposed herein would not have a substantial direct effect 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, it is determined that this 
proposed rule would not have federalism implications under Executive 
Order 13132.
    Would this proposed AD involve a significant rule or regulatory 
action? For the reasons discussed above, I certify that this proposed 
action (1) is not a ``significant regulatory action'' under Executive 
Order 12866; (2) is not a ``significant rule'' under DOT

[[Page 18144]]

Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); 
and (3) if promulgated, 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 draft 
regulatory evaluation prepared for this action has been placed 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, Safety.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the Federal Aviation Administration proposes to amend 
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.


Sec. 39.13  [Amended]

    2. FAA amends Sec. 39.13 by removing Airworthiness Directive (AD) 
46-38-03 and AD 86-22-09, Amendment 39-5457, and by adding a new AD to 
read as follows:

UNIVAIR Aircraft Corporation: Docket No. 2000-CE-79-AD; Supersedes 
AD 46-38-03 and AD 86-22-09, Amendment 39-5457.

    (a) What airplanes are affected by this AD? This AD affects all 
serial numbers of Models (ERCO) 415-C, (ERCO) 415-CD, (ERCO) 415-D, 
(ERCO) 415-E, (ERCO) 415-G, (Forney) F-1, and (Forney) F-1A 
airplanes that:
    (1) are certificated in any category; and
    (2) have the gascolator connected to the side of the carburetor. 
This AD does not affect those airplanes with the gascolator mounted 
on the firewall.
    (b) Who must comply with this AD? Anyone who wishes to operate 
any of the airplanes identified in paragraph (a) of this AD must 
comply with this AD.
    (c) What problem does this AD address? The actions specified by 
this AD are intended to prevent failure of the fuel line fittings or 
the gascolator because of the current airplane design configuration 
(aluminum fuel line nipples, aluminum fuel line elbows, and/or no 
double support tubes on the gascolator). Such failure could result 
in a lack of fuel to the engine with consequent loss of control of 
the airplane.
    (d) What actions must I accomplish to address this problem? To 
address this problem, you must accomplish the following:

------------------------------------------------------------------------
             Actions                  Compliance          Procedures
------------------------------------------------------------------------
(1) Visually inspect the fuel     Inspect within the  In accordance with
 line nipple and elbow located     next 25 hours       Univair Service
 between the carburetor and        time-in-service     Bulletin No. 24B,
 gascolator for cracks or          (TIS) after the     dated January 29,
 misalignment, and replace as      effective date of   2002.
 necessary.                        this AD and
                                   replace prior to
                                   further flight
                                   after the
                                   inspection. You
                                   must inspect even
                                   if you have
                                   inspected
                                   previously.
------------------------------------------------------------------------
(2) Replace any aluminum fuel     Within the next 25  In accordance with
 line nipple with one made of      TIS after the       Univair Service
 brass or steel.                   effective date of   Bulletin No. 24B,
                                   this AD, unless     dated January 29,
                                   already             2002.
                                   accomplished
                                   (compliance with
                                   AD 86-22-09 and/
                                   or Univair
                                   Service Bulletin
                                   No. 24A, dated
                                   August 22, 1986).
------------------------------------------------------------------------
(3) Replace any aluminum fuel     Within the next 25  In accordance with
 elbow fitting with one made of    hours TIS after     Univair Service
 brass or steel. Manufacturer      the effective       Bulletin No. 24B,
 replacement parts numbers are     date of this AD,    dated January 29,
 referenced in this service        unless already      2002.
 information.                      accomplished
                                   (compliance with
                                   AD 46-38-03).
------------------------------------------------------------------------
(4) Inspect for the existence of  Inspect within the  In accordance with
 double support tubes on the       next 25 hours TIS   Univair Service
 gascolator and install these      after the           Bulletin No. 24B,
 tubes if they do not exist, as    effective date of   dated January 29,
 follows:                          this AD and         2002.
(i) For all affected airplanes     install the
 except for (Forney) F-1 and       double support
 (Forney) F-1A airplanes,          tubes prior to
 install part numbers 48076 and    further flight
 48096 (or FAA-approved            after the
 equivalent part numbers) double   inspection,
 support tubes; and                unless already
(ii) For all affected (Forney) F-  accomplished
 1 and (Forney) F-1A airplanes,    (compliance with
 install part numbers 48098 and    Univair Service
 48099 (or FAA-approved            Bulletin No. 24A,
 equivalent part numbers) double   dated August 22,
 support tubes.                    1986).
------------------------------------------------------------------------
(5) Do not install, on any        As of the           Not Applicable.
 affected airplane, an aluminum    effective date of
 fuel line nipple or aluminum      this AD.
 elbow.
------------------------------------------------------------------------
(6) Do not install a gascolator   As of the           Not Applicable.
 on the side of the carburetor     effective date of
 on any affected airplane,         this AD.
 unless the double support tubes
 specified in paragraph
 (d)(4)(i) or (d)(4)(ii) of this
 AD are installed.
------------------------------------------------------------------------

    (e) Can I comply with this AD in any other way?
    (1) You may use an alternative method of compliance or adjust 
the compliance time if:
    (i) Your alternative method of compliance provides an equivalent 
level of safety; and
    (ii) The Manager, Denver Aircraft Certification Office, approves 
your alternative. Submit your request through an FAA Principal 
Maintenance Inspector, who may add comments and then send it to the 
Manager.
    (2) Alternative methods of compliance approved in accordance 
with AD 46-38-03 and/or AD 86-22-09, which are superseded by this 
AD, are not approved as alternative methods of compliance with this 
AD.

    Note: This AD applies to each airplane identified in paragraph 
(a) of this AD,

[[Page 18145]]

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 (e) 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 you 
have not eliminated the unsafe condition, specific actions you 
propose to address it.

    (f) Where can I get information about any already-approved 
alternative methods of compliance? Contact Elizabeth Bumann, 
Aerospace Engineer, FAA, Denver Aircraft Certification Office, 26805 
East 68th Avenue, Room 214, Denver, Colorado 80249; telephone: (303) 
342-1083; facsimile: (303) 342-1088.
    (g) What if I need to fly the airplane to another location to 
comply with this AD? The FAA can issue a special flight permit under 
sections 21.197 and 21.199 of the Federal Aviation Regulations (14 
CFR 21.197 and 21.199) to operate your airplane to a location where 
you can accomplish the requirements of this AD.
    (h) How do I get copies of the documents referenced in this AD? 
You may get copies of the documents referenced in this AD from 
Univair Aircraft Corporation, 2500 Himalaya Road, Aurora, Colorado 
80011; telephone: (303) 375-8882; facsimile: (303) 375-8888. You may 
view these documents at FAA, Central Region, Office of the Regional 
Counsel, 901 Locust, Room 506, Kansas City, Missouri 64106.
    (i) Does this AD action affect any existing AD actions? This 
amendment supersedes AD 46-38-03 and AD 86-22-09, Amendment 39-5457.

    Issued in Kansas City, Missouri, on April 5, 2002.
Dorenda D. Baker,
Acting Manager, Small Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 02-8989 Filed 4-12-02; 8:45 am]
BILLING CODE 4910-13-P