Source: http://www.thefederalregister.com/d.p/2000-08-21-00-20776
Timestamp: 2013-05-22 13:43:31
Document Index: 658142839

Matched Legal Cases: ['art 7114', 'art 3944', 'art 6726', 'art 140', 'art 5250', 'art 1739', 'art 30206', 'art 514', 'art 9740', 'art 180', 'art 39', 'art 39', 'art 39', 'art 39', 'ART 39', 'art 39', 'art 51']

British Aerospace and Jetstream, Daily Rules, Proposed Rules, and Notices of the Federal Government
14 CFR Part 7114 CFR Part 3944 CFR Part 6726 CFR Part 140 CFR Part 5250 CFR Part 1739 CFR Part 30206 CFR Part 514 CFR Part 9740 CFR Part 180	Federal Register: August 21, 2000 (Volume 65, Number 162)
DOCID: FR Doc 00-20776
Docket ID: [Docket No. 98-CE-117-AD; Amendment 39-11870; AD 2000-16-13]
SUBJECT CATEGORY: Airworthiness Directives; British Aerospace HP137 Mk1, Jetstream Series 200, and Jetstream Models 3101 and 3201 Airplanes DATES: This AD becomes effective on September 29, 2000.
DOCUMENT SUMMARY: This amendment adopts a new airworthiness directive (AD) that applies to all British Aerospace HP137 Mk1, Jetstream series 200, and Jetstream Models 3101 and 3201 airplanes. This AD requires you to inspect the nose wheel steering system to assure that the free play between the steering handle or knob and the nose wheels is within acceptable limits, and requires you to adjust the free play as necessary. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for the United Kingdom. The actions specified by this AD are intended to prevent the inability to steer the airplane because of excessive free play in the steering linkage. This excessive free play could then result in loss of control of the airplane during takeoff, landing, or taxi operations.
SUMMARY: British Aerospace and Jetstream, SUPPLEMENTAL INFORMATION
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 all British Aerospace HP137 Mk1, Jetstream series 200, and Jetstream Models 3101 and 3201 airplanes. This proposal was published in the Federal Register as a notice of proposed rulemaking (NPRM) on April 23, 1999 (64 FR 19930). The NPRM proposed to require you to inspect the nose wheel steering system to assure that the free play between the steering handle or knob and the nose wheels is within acceptable limits, and adjust as necessary. Accomplishment of the proposed action as specified in the NPRM would be required in accordance with British Aerospace Alert Service Bulletin 32AJA980840, Original Issue: October 28, 1998, Revision No. 2: December 17, 1998.
This condition, if not corrected in a timely manner, could result in loss of control of the airplane during takeoff, landing, or taxi operations.
Operator reports that indicate it is difficult to accomplish the steering backlash check caused British Aerospace to revise Alert Service Bulletin 32AJA980840. Improved procedures are included in British Aerospace Alert Service Bulletin 32AJA980840, Revision No. 3: May 5, 1999. The FAA's Determination
We carefully reviewed all available information related to the subject presented above, including the referenced service bulletin revision, and determined that: The actions proposed in the NPRM should be accomplished in accordance with the revised service information; Air safety and the public interest require the adoption of the rule as proposed except for the incorporation of this service information and minor editorial corrections; and These changes provide the intent that was proposed in the NPRM for correcting the unsafe condition and do not impose any additional burden over what was proposed in the NPRM.
British Aerospace Alert Service Bulletin 32AJA980840, Original Issue: October 28, 1998, Revision No. 3: May 5, 1999, specifies calendar compliance times based on the number of landings each airplane has accumulated. In order to keep the compliance time equal for all airplane operators, we are requiring the inspection when the airplane has 10,000 landings. In order to assure that no affected airplane is inadvertently grounded, we are utilizing 100 landings as a grace period. The compliance time is as follows:
``Upon accumulating 10,000 landings or within the next 100 landings after the effective date of this AD, whichever occurs later.'' Cost Impact
We estimate that this AD affects 350 airplanes in the U.S. registry, and that it will take approximately 6 workhours per airplane to accomplish the inspection at an average labor rate of $60 an hour. Based on these figures, the total cost impact of the inspection on U.S. operators is estimated to be $126,000, or $360 per airplane. What About the Cost of any Adjustments? These figures only take into account the costs of the inspection and do not take into account the costs associated with any adjustments that will be necessary if the free play is not within acceptable limits. The adjustment should take approximately 1 workhour at $60 per hour (cost of $60 per airplane). We have no way of determining the number of airplanes that would need adjustments to the nose wheel steering system based on the results of the inspection required in this AD. Regulatory Impact
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.
Accordingly, under 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 39AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701.
20001613 British Aerospace: Amendment 3911870; Docket No. 98CE 117AD. [[Page 50619]]
(c) What problem does this AD address? The actions specified by this AD are intended to prevent the inability to steer the airplane because of excessive free play in the steering linkage. This excessive free play could then result in loss of control of the airplane during takeoff, landing, or taxi operations.
Action Compliance time Procedures
(1) Inspect the nose wheel Upon accumulating Accomplish this
steering system of assure 10,000 landings or inspection in
that the free play between within the next 100 accordance with the
the steering handle or knob landings after A. Inspection
and the nose wheels is September 29, 2000 portion of the
within acceptable limits, (the effective date ACCOMPLISHMENT
as specified in the service of this AD), INSTRUCTIONS
information. whichever occurs section of British
later. Aerospace Alert
Service Bulletin 32
AJA980840,
Revision No. 3: May
(2) Adjust the free play Required before Accomplish in
between the steering handle further flight accordance with the
or knob and the nose wheels after the B. Rectification
if it is not within the inspection where portion of the
acceptable limits. the free play was ACCOMPLISHMENT
not within the INSTRUCTIONS
acceptable limits. section of British
Aerospace Alert
Note: If the number of landings is unknown, you may use hours timein
service (TIS) by dividing 10,000 and 100 by 0.75. If hours TIS are
utilized to calculate the number of landings, this would calculate the
10,000 landings compliance time to 13,333 hours TIS; and the 100 landings grace period compliance time to 133 hours TIS.
(2) The Manager, Small Airplane Directorate approves your alternative. Submit your request through an FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106. Note: This AD applies to each airplane identified in paragraph (a) of this AD, 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 alreadyapproved alternative methods of compliance? You may contact S.M. Nagarajan, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64016; telephone: (816) 3294145; facsimile: (816) 3294090.
(h) Are any service bulletins incorporated into this AD by reference? Actions required by this AD must be done in accordance with British Aerospace Alert Service Bulletin 32AJA980840, Revision No. 3: May 5, 1999. The Director of the Federal Register approved this incorporation by reference under 5 U.S.C. 552(a) and 1 CFR part 51. You can get copies from British Aerospace Regional Aircraft, Prestwick International Airport, Ayrshire, KA9 2RW, Scotland; telephone: (01292) 479888; facsimile: (01292) 479703. You can look at copies at the FAA, Central Region, Office of the Regional Counsel, 901 Locust, Room 506, Kansas City, Missouri, or at the Office of the Federal Register, 800 North Capitol Street, NW, suite 700, Washington, DC.
(i) When does this amendment become effective? This amendment becomes effective on September 29, 2000. Issued in Kansas City, Missouri, on August 10, 2000. Michael Gallagher,
[FR Doc. 0020776 Filed 81800; 8:45 am]
Mr. S.M. Nagarajan, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 3294145; facsimile: (816) 329 4090.