[Federal Register Volume 59, Number 37 (Thursday, February 24, 1994)]
[Unknown Section]
[Page 0]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 94-4125]


[[Page Unknown]]

[Federal Register: February 24, 1994]


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DEPARTMENT OF TRANSPORTATION
14 CFR Part 39

[Docket No. 90-CE-56-AD]

 

Airworthiness Directives: British Aerospace, Regional Aircraft 
Limited, HP 137 Mk1, Jetstream Models 200, 3101, and 3201 Airplanes

AGENCY: Federal Aviation Administration, DOT.

ACTION: Proposed rule; withdrawal.

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SUMMARY: This document withdraws a notice of proposed rulemaking (NPRM) 
that would have applied to certain British Aerospace (BAe), Regional 
Aircraft Limited, HP 137 Mk1, Jetstream Models 200, 3101, and 3201 
airplanes. The proposed action would have required identifying all Type 
``F'' universal joints on the flap torque shaft and replacing these 
universal joints with Type ``M'' or Type ``MC'' universal joints. Since 
issuance of the NPRM, Jetstream Aircraft Ltd. has introduced improved 
flap torque shaft assemblies that include universal joints that are not 
life limited, and that incorporate the actions proposed in the 
referenced NPRM and required in two other existing airworthiness 
directives (AD's). The FAA has determined that installing these 
improved assemblies would incorporate the actions of the current NPRM 
and the requirements of the two existing AD's. The FAA is withdrawing 
the current NPRM and will subsequently issue another NPRM that would 
incorporate all the actions referenced above.

FOR FURTHER INFORMATION CONTACT: Mr. Raymond A. Stoer, Program Officer, 
Brussels Aircraft Certification Office, FAA, Europe, Africa, and Middle 
East Office, c/o American Embassy, B-1000 Brussels, Belgium; telephone 
(322) 513-3830; facsimile (322) 230-6899; or Mr. John P. Dow, Project 
Officer, Small Airplane Directorate, Airplane Certification Service, 
FAA, 1201 Walnut, suite 900, Kansas City, Missouri 64106; telephone 
(816) 426-6932; facsimile (816) 426-2169.

SUPPLEMENTARY INFORMATION: A proposal to amend part 39 of the Federal 
Aviation Regulations to include an airworthiness directive (AD) that 
would apply to certain British Aerospace (BAe), Regional Aircraft 
Limited, HP 137 Mk1, Jetstream Models 200, 3101, and 3201 airplanes was 
published in the Federal Register on March 21, 1991 (56 FR 11976). The 
action proposed inspecting the flap torque shaft to identify all Type 
``F'' universal joints, and replacing these universal joints with Type 
``M'' or Type ``MC'' universal joints. The proposed actions would be 
accomplished in accordance with the instructions in BAe Alert Service 
Bulletin (ASB) 27-A-JA 900544, which incorporates the following pages 
and revisions:

------------------------------------------------------------------------
                                 Revision                               
             Pages                level                 Date            
------------------------------------------------------------------------
1 through 5...................          4  Sept. 29, 1990.              
6 through 9, and 11 through 29          2  June 15, 1990.               
10............................          3  June 22, 1990.               
------------------------------------------------------------------------

    Interested persons have been afforded an opportunity to participate 
in the making of this amendment. No comments were received on the 
proposed rule or the FAA's determination of the cost to the public.
    Since issuance of the notice of proposed rulemaking (NPRM), 
Jetstream Aircraft Ltd. has introduced improved flap torque shaft 
assemblies that include universal joints that are not life limited, and 
that incorporate the actions proposed in the referenced NPRM and 
required in two other existing AD's. The FAA has determined that 
installing these improved assemblies would incorporate the actions 
proposed in the current NPRM and the requirements of the following 
AD's:
     AD 87-04-04, Amendment 39-5529, which requires limiting 
the in-service life of the torque tube shaft assembly on BAe HP 137 
Mk1, Jetstream Models 200, 3101, and 3201 airplanes; and
     AD 89-16-02, Amendment 39-6273, which requires 
repetitively inspecting the universal joints and universal joint rivets 
on BAe HP 137 Mk1, Jetstream Models 200, 3101, and 3201 airplanes, and 
replacing any damaged part.
    The FAA will issue another NPRM to propose combining the universal 
joint inspection requirements and the flap torque shaft assembly life 
limit requirement of the two existing AD's, but mandate installing 
improved flap torque shaft assemblies as terminating action for these 
requirements. Since this future action will also incorporate the 
previously proposed actions, the FAA is withdrawing the existing NPRM.
    Withdrawal of this NPRM constitutes only such action, and does not 
preclude the agency from issuing another notice in the future, nor does 
it commit the agency to any course of action in the future.
    Since this action only withdraws an NPRM, it is neither a proposed 
rule nor a final rule and therefore, is not covered under Executive 
Order 12866, the Regulatory Flexibility Act, or DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979).

List of Subjects in 14 CFR Part 39

    Air Transportation, Aircraft, Aviation Safety, Safety.

The Withdrawal

    Accordingly, the notice of proposed rulemaking, Docket No. 90-CE-
56-AD, published in the Federal Register on March 21, 1991 (56 FR 
11976), is withdrawn.

    Issued in Kansas City, Missouri, on February 14, 1994.
John R. Colomy,
Acting Manager, Small Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 94-4125 Filed 2-23-94; 8:45 am]
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