[Federal Register Volume 60, Number 30 (Tuesday, February 14, 1995)]
[Rules and Regulations]
[Pages 8294-8295]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 95-1699]



-----------------------------------------------------------------------



DEPARTMENT OF TRANSPORTATION
14 CFR Part 39

[Docket No. 94-CE-16-AD; Amendment 39-9123; AD 95-02-05]


Airworthiness Directives; Jetstream Aircraft Limited (Formerly 
British Aerospace, Regional Airlines Limited) HP137 Mk1, Jetstream 
Series 200, and Jetstream Models 3101 and 3201 Airplanes

AGENCY: Federal Aviation Administration, DOT.

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: This amendment adopts a new airworthiness directive (AD) that 
applies to Jetstream Aircraft Limited (JAL) HP137 Mk1, Jetstream series 
200, and Jetstream Models 3101 and 3201 airplanes. This action requires 
repetitively inspecting the passenger/crew cabin door handle mounting 
platform structure for cracks, and, if found cracked, replacing with a 
structure of improved design as terminating action for the repetitive 
inspections. The actions specified by this AD are intended to prevent 
the inability to open the passenger/crew door because of a cracked 
internal handle mounting platform structure, which, if not detected and 
corrected, could result in passenger injury if emergency evacuation was 
needed.

DATES: Effective March 17, 1995.
    The incorporation by reference of certain publications listed in 
the regulations is approved by the Director of the Federal Register as 
of March 17, 1995.

ADDRESSES: Service information that applies to this AD may be obtained 
from Jetstream Aircraft Limited, Manager Product Support, Prestwick 
Airport, Ayrshire, KA9 2RW Scotland; telephone (44-292) 79888; 
facsimile (44-292) 79703; or Jetstream Aircraft Inc., Librarian, P.O. 
Box 16029, Dulles International Airport, Washington, DC, 20041-6029; 
telephone (703) 406-1161; facsimile (703) 406-1469. This information 
may also be examined at the Federal Aviation Administration (FAA), 
Central Region, Office of the Assistant Chief Counsel, Room 1558, 601 
E. 12th Street, Kansas City, Missouri 64106; or at the Office of the 
Federal Register, 800 North Capitol Street, NW., suite 700, Washington, 
DC.

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, Sr., 
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 (14 CFR part 39) to include an AD that would apply 
to certain JAL HP137 Mk1, Jetstream series 200, and Jetstream Models 
3101 and 3201 airplanes was published in the Federal Register on 
October 13, 1994 (59 FR 51879). The action proposed to require 
repetitively inspecting the passenger/crew cabin door handle mounting 
platform structure for cracks, and, if found cracked, replacing with a 
structure of improved design as terminating action for the repetitive 
inspections. The proposed actions would be accomplished in accordance 
with Jetstream Service Bulletin 52-A-JA 930901, Revision 1, dated 
February 11, 1994.
    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.
    After careful review of all available information, the FAA has 
determined that air safety and the public interest require the adoption 
of the rule as proposed except for minor editorial corrections. The FAA 
has determined that these minor corrections will not change the meaning 
of the AD nor add any additional burden upon the public than was 
already proposed.
    The FAA estimates that 165 airplanes in the U.S. registry will be 
affected by this AD, that it will take approximately 1 workhour per 
airplane to accomplish the required action, and that the average labor 
rate is approximately $55 an hour. Based on these figures, the total 
cost impact of the AD on U.S. operators is estimated to be $9,075. This 
figure does not take into account any possible passenger/crew door 
internal handle mounting platform structure replacements nor repetitive 
inspections. The FAA has no way of determining how many of these 
structures may have cracks or the number of repetitive inspections each 
owner/operator may incur.
    The regulations adopted herein will not have substantial direct 
effects 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, in 
accordance with Executive Order 12612, it is determined that this final 
rule does not have sufficient federalism implications to warrant the 
preparation of a Federalism Assessment.
    For the reasons discussed above, I certify that this action (1) is 
not a ``significant regulatory action'' under Executive Order 12866; 
(2) is not a ``significant rule'' under DOT Regulatory Policies and 
Procedures (44 FR 11034, February 26, 1979); and (3) 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 final evaluation prepared for this 
action is contained 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, Incorporation by 
reference, Safety.

Adoption of the Amendment

    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. App. 1354(a), 1421 and 1423; 49 U.S.C. 
106(g); and 14 CFR 11.89.


Sec. 39.13  [Amended]

    2. Section 39.13 is amended by adding a new AD to read as follows:

95-02-05  Jetstream Aircraft Limited: Amendment 39-9123; Docket No. 
94-CE-16-AD.

    Applicability: HP137 Mk1, Jetstream Series 200, and Jetstream 
Models 3101 and 3201 airplanes (all serial numbers), certificated in 
any category. Compliance: Required upon the 
[[Page 8295]] accumulation of 1,800 hours time-in-service (TIS) or 
within the next 100 hours TIS after the effective date of this AD, 
whichever occurs later, unless already accomplished, and thereafter 
as indicated.
    To prevent the inability to open the passenger/crew door because 
of a cracked internal handle mounting platform structure, which, if 
not detected and corrrected, could result in passenger injury if 
emergency evacuation was needed, accomplish the following:
    (a) Inspect the passenger/crew door internal handle mounting 
platform structure for cracks in accordance with Part 1 of the 
ACCOMPLISHMENT INSTRUCTIONS section of Jetstream Service Bulletin 
(SB) 52-A-JA 930901, Revision 1, dated February 11, 1994 .
    (1) If any cracked structure is found, prior to further flight, 
replace the mounting platform structure with a new structure, part 
number 137450C23, in accordance with Part 2 of the ACCOMPLISHMENT 
INSTRUCTIONS section of Jetstream SB 52-A-JA 930901, Revision 1, 
dated February 11, 1994.
    (2) If no cracks are found, reinspect the mounting platform 
structure at intervals not to exceed 1,800 hours TIS until a part 
number 137450C23 mounting platform structure is installed.
    (b) The repetitive inspections required by this AD may be 
terminated upon installing a part number 137450C23 passenger/crew 
door internal handle mounting platform structure. This installation 
may be accomplished regardless of whether the existing structure is 
cracked.
    (c) 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.
    (d) An alternative method of compliance or adjustment of the 
compliance time that provides an equivalent level of safety may be 
approved by the Manager, Brussels Aircraft Certification Office 
(ACO), Europe, Africa, Middle East office, FAA, c/o American 
Embassy, B-1000 Brussels, Belgium. The request should be forwarded 
through an appropriate FAA Maintenance Inspector, who may add 
comments and then send it to the Manager, Brussels ACO.

    Note: Information concerning the existence of approved 
alternative methods of compliance with this AD, if any, may be 
obtained from the Brussels ACO.

    (e) The inspection and modification (if necessary) required by 
this AD shall be done in accordance with Jetstream Service Bulletin 
52-A-JA 930901, Revision 1, dated February 11, 1994 . This 
incorporation by reference was approved by the Director of the 
Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 
51. Copies may be obtained from Jetstream Aircraft Limited, Manager 
Product Support, Prestwick Airport, Ayrshire, KA9 2RW Scotland; 
telephone (44-292) 79888; or Jetstream Aircraft Inc., Librarian, 
P.O. Box 16029, Dulles International Airport, Washington, DC, 20041-
6029. Copies may be inspected at the FAA, Central Region, Office of 
the Assistant Chief Counsel, Room 1558, 601 E. 12th Street, Kansas 
City, Missouri, or at the Office of the Federal Register, 800 North 
Capitol Street, NW., suite 700, Washington, DC.
    (f) This amendment (39-9123) becomes effective on March 17, 
1995.

    Issued in Kansas City, Missouri, on January 18, 1995.
Barry D. Clements,
Manager, Small Airplane Directorate, Aircraft Certification Service.
[FR Doc. 95-1699 Filed 2-13-95; 8:45 am]
BILLING CODE 4910-13-U