12910 Federal Register / Vol. 67, No. 54 / Wednesday, March 20, 2002 / Proposed Rules
modified, altered, or repaired in the area The request should include an assessment of To prevent failure of the airstair door to subject to the requirements of this AD. For the effect of the modification, alteration, or open after a landing, which could result in airplanes that have been modified, altered, or repair on the unsafe condition addressed by a blocked escape route during an emergency repaired so that the performance of the this AD; and, if the unsafe condition has not evacuation, accomplish the following: requirements of this AD is affected, the been eliminated, the request should include owner/operator must request approval for an specific proposed actions to address it. Modifications alternative method of compliance in Compliance: Required as indicated, unless (a) Modify the airplane as specified by the accordance with paragraph (b) of this AD. accomplished previously. following table:
TABLE—MODIFICATION REQUIREMENTS
In accordance with the Accomplishment In- For Model— Modify the airstair door by— Within— structions of Bombardier Service Bulletin—
(1) DHC–8–102, ¥103, ¥106, Replacing the inflation valve 6 months after the effective 8–52–46, dated September 30, 1998. ¥201, 202, 301, ¥311, and with a new valve of an im- date of this AD. ¥315 series airplanes; serial proved design (Modsum numbers 003 through 522 in- 8Q100185). clusive. (2) DHC–8–102, ¥103, ¥106, Reworking the airstair door 6 months after the effective 8–52–38, dated October 10, 1995; or ¥301, ¥311, and ¥315 se- cable balance assembly date of this AD. 8–52–38, Revision ‘A,’ dated September 19, ries airplanes; serial numbers (Modsum 8/2205). 1997. 003 through 400 inclusive. (3) DHC–8–102, ¥103, ¥106, Replacing the upper cable 6 months after the effective 8–52–57, dated February 23, 2000; or ¥201, ¥202, ¥301, 311, guards on the airstair door date of this AD, but after 8–52–58, Revision ‘A,’ dated July 28, 2000; and ¥315 series airplanes; with new, improved cable the modification required by or serial numbers 003 through guards (Modsum paragraph (a)(2) of this AD. 8–52–57, Revision ‘B,’ dated November 14, 550 inclusive. 8Q101093). 2000. (4) DHC–8–102, 103, 106, 201, (i) Manufacturing and install- 6 months after the effective 8–52–56, Revision ‘C,’ dated March 10, 202, 301, 311, and 315 se- ing a support bracket as- date of this AD. 2000; or ries airplanes; serial numbers sembly (Modsum 8–52–56, Revision ‘D,’ dated May 18, 2000; 003 through 550 inclusive. 8Q101086); and/or. or 8–52–56, Revision ‘E,’ dated July 20, 2000; or 8–52–56, Revision ‘F,’ dated August 29, 2000; or 8–52–56, Revision ‘G,’ dated November 7, 2000. (ii) Replacing the airstair door 6 months after the effective 8–52–59; dated September 18, 2000; or gas springs with new gas date of this AD. 8–52–59; Revision ‘A,’ dated January 3, springs (Modsum 2001. 8Q101074).
Note 2: Modsum 8Q101093 (paragraph of the Federal Aviation Regulations (14 CFR DEPARTMENT OF TRANSPORTATION (a)(3) of this AD) cannot be accomplished 21.197 and 21.199) to operate the airplane to before Modification 8/2205 (paragraph (a)(2) a location where the requirements of this AD Federal Aviation Administration of this AD), because Modsum 8Q101093 can be accomplished. introduces a redesigned cable guard that Note 5: The subject of this AD is addressed 14 CFR Part 39 replaces a cable guard that is part of Modification 8/2205. in Canadian airworthiness directive CF– [Docket No. 2000–CE–14–AD] 2000–19R1, dated January 22, 2001. Note 3: Modification as specified by either RIN 2120–AA64 paragraph (a)(4)(i) or (a)(4)(ii)—or both—of Issued in Renton, Washington, on March this AD is acceptable for compliance with the 13, 2002. Airworthiness Directives; Rockwell requirements of paragraph (a)(4) of this AD. Ali Bahrami, Collins, Inc. ADC–85, ADC–85A, ADC– 850D, and ADC–850F Air Data Alternative Methods of Compliance Acting Manager, Transport Airplane Computers (b) An alternative method of compliance or Directorate, Aircraft Certification Service. adjustment of the compliance time that [FR Doc. 02–6630 Filed 3–19–02; 8:45 am] AGENCY: Federal Aviation provides an acceptable level of safety may be BILLING CODE 4910–13–P Administration, DOT. used if approved by the Manager, New York ACTION: Supplemental notice of Aircraft Certification Office (ACO), FAA. Operators shall submit their requests through proposed rulemaking (NPRM); an appropriate FAA Principal Maintenance Reopening of the comment period. Inspector, who may add comments and then SUMMARY: This document proposes to send it to the Manager, New York ACO. revise an earlier proposed airworthiness Note 4: Information concerning the directive (AD) that would apply to existence of approved alternative methods of compliance with this AD, if any, may be certain Rockwell Collins, Inc. obtained from the New York ACO. (Rockwell) ADC–85, ADC–85A, ADC– 850C, and ADC–850F air data Special Flight Permits computers that are installed on (c) Special flight permits may be issued in airplanes. The earlier NPRM would accordance with sections 21.197 and 21.199 have required you to replace any
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affected air data computer (ADC) with Regional Systems, 400 Collins Road the public that concerns the substantive one that has a reprogrammed and tested Northeast,Cedar Rapids, Iowa 52498; parts of this proposed AD. central processing unit (CPU) circuit telephone: (319) 295–2512; facsimile: How Can I Be Sure FAA Receives My card and circuit card assemblies. The (319) 295–5064. You may also view this Comment? earlier NPRM resulted from a flight test information at the Rules Docket at the that showed that these ADCs could address above. If you want FAA to acknowledge the display an unwarranted ADC flag in FOR FURTHER INFORMATION CONTACT: receipt of your mailed comments, you response to the airplane’s ‘‘Normal/ Roger A. Souter, FAA, Wichita Aircraft must include a self-addressed, stamped Alternate Air’’ static source selection Certification Office (ACO), 1801 Airport postcard. On the postcard, write capability. Revised service information Road, Rm 100, Wichita, Kansas 67209; ‘‘Comments to Docket No. 2000–CE–14– revealed the need to change the telephone: (316) 946–4134; facsimile: AD.’’ We will date stamp and mail the applicability of the affected ADC units (316) 946–4407; e-mail address: postcard back to you. that are installed on airplanes. In [email protected]. Discussion addition, evaluation of the public comments on the NPRM reveals the SUPPLEMENTARY INFORMATION: What Events Have Caused This need to change the number and models Comments Invited Proposed AD? of airplanes that could have the affected The air data computer (ADC), as part How Do I Comment on This Proposed ADC units installed. Since these actions of its monitoring process, tests for errant AD? impose an additional burden over that sensor behavior such as unreasonable proposed in the NPRM, we are The FAA invites comments on this jumps in altitude and unreasonably high reopening the comment period to allow proposed rule. You may submit vertical speed. When the ADC detects the public the chance to comment on whatever written data, views, or an errant sensor behavior, the ADC these additional actions. arguments you choose. You need to displays a flag for 5.5 seconds plus the DATES: The Federal Aviation include the rule’s docket number and time it takes for the sensor to settle Administration (FAA) must receive any submit your comments to the address within the limits for another 5.5-second comments on this proposed rule on or specified under the caption ADDRESSES. period. This results in a minimum ADC before May 17, 2002. We will consider all comments received flag display of 11 seconds. ADDRESSES: Submit comments to FAA, on or before the closing date. We may Testing of certain Rockwell Collins Central Region, Office of the Regional amend this proposed rule in light of ADCs reveals the ADC could display Counsel, Attention: Rules Docket No. comments received. Factual information unwarranted flags on aircraft where you 2000–CE–14–AD, 901 Locust, Room that supports your ideas and suggestions can select the ‘‘Normal/Alternate Air’’ 506, Kansas City, Missouri 64106. You is extremely helpful in evaluating the static source. When there is a significant may view any comments at this location effectiveness of this proposed AD action difference between normal and between 8 a.m. and 4 p.m., Monday and determining whether we need to alternate/revisionary static air sources, through Friday, except Federal holidays. take additional rulemaking action. you can exceed the ADC monitor You may also send comments thresholds and the ADC would display Are There Any Specific Portions of This electronically to the following address: flags. Proposed AD I Should Pay Attention to? 9–ACE–7–[email protected]. Comments If the flight crew used the undesirable sent electronically must contain The FAA specifically invites ADC flag displays to deselect the ‘‘Docket No. 2000–CE–76–AD’’ in the comments on the overall regulatory, alternate static air source before the subject line. If you send comments economic, environmental, and energy initial 11-second display period, a valid electronically as attached electronic aspects of this proposed rule that might air source may have been deselected. files, the files must be formatted in suggest a need to modify the rule. You Confusion could result when the Microsoft Word 97 for Windows or may view all comments we receive previously unflagged normal static air ASCII text. before and after the closing date of the source is reselected. This may also You may get service information that rule in the Rules Docket. We will file a result in the ADC displaying a flag for applies to this proposed AD from report in the Rules Docket that the first 11 seconds. The affected ADCs Rockwell Collins, Business and summarizes each contact we have with include:
Unit Part No. Applicable to serial No.
ADC–85 (Incorporating Rockwell Collins Service Bulletin No. 58) ...... 622–8051–002 All units. 622–8051–003 ADC–85A (Incorporating Rockwell Collins Service Bulletin No. 58) ...... 822–0370–113 All units. 822–0370–123 822–0370–139 822–0370–404 822–0370–408 ADC–850D (Incorporating Rockwell Collins Service Bulletin No. 58) ..... 822–0389–133 All up to and including 3DGW (except for 1P6D, 22RC–22RF, and 23WK–3DGP). ADC–850F ...... 822–1036–406 All Units. 822–1036–418
What Are the Consequences If the flight decisions, this unwarranted ADC Is There Service Information That Condition Is Not Corrected? flag could distract the crew, and the lack Applies to This Subject? of attention to the critical actions could If these situations were to occur while result in an unsafe operating condition. Rockwell has issued Service Bulletin the flight crew were making critical No. 62 (ADC–85/85A/850C/850D/850E/
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850F–34–62), Revision 2, dated March Comment Issue No. 2: Modify the Bulletin 99–7, dated August 1999, 7, 2000, and Service Bulletin No. 62 Estimate of the Number of Airplanes which provides information on such a (ADC–85/85A/850C/850F–34–62), dated Affected on the U.S. Registry placard. Although it is a good idea to October 25, 1999. Service Bulletin 62, incorporate the actions of this operator What Is the Commenter’s Concern? Revision 2, reflects the addition of bulletin, we have determined that the ADC–850D to the list of affected units A commenter states that more aircraft modification as proposed, including the and the removal of ADC–850C from the are affected than the 245 listed in the compliance time, addresses the unsafe list of affected units. NPRM. The commenter notes that the condition. ADC is installed in additional aircraft We will include a note in the What Are the Provisions of This Service and is installed on at least 329 Information? proposed AD recommending airplanes. compliance with Rockwell Collins These service bulletins contain What Is FAA’s Response to the Concern? Operator Bulletin 99–7, dated August procedures for replacing or 1999. reprogramming applicable parts or The number of airplanes affected by circuit card assemblies on central this AD could exceed 245. We have no Comment Issue No. 5: Recommend the processing unit (CPU) circuit cards in way of determining the exact number Effective Date of the AD to the ADC and testing the modified ADC. that have the affected ADCs installed. Accommodate Production Aircraft Has FAA Taken Any Action to This Our best estimate in the NPRM was 245 What Is the Commenter’s Concern? Point? airplanes. Further research indicates that at least 329 airplanes could have A commenter recommends that FAA We issued a proposal to amend part the ADC installed. Therefore, we will establish the effective date of the AD to 39 of the Federal Aviation Regulations change the cost impact to represent an accommodate incorporation of the AD (14 CFR part 39) to include an AD that estimate of 329 airplanes instead of 245 into production aircraft. The commenter would apply to certain Rockwell airplanes. suggests May 1, 2001, or later, as the Collins, Inc. (Rockwell) ADC–85, ADC– effective date of the AD. 85A, ADC–850C, and ADC–850F air Comment Issue No. 3: Modify the List What Is FAA’s Response to the Concern? data computers that are installed on of Applicable Raytheon Airplanes airplanes. This proposal was published What Is the Commenter’s Concern? The FAA will take this into in the Federal Register as a notice of consideration when establishing the proposed rulemaking (NPRM) on A commenter states that the list of effective date. affected airplanes is incorrect for October 2, 2000 (65 FR 58678). The Comment Issue No. 6: Make Reference NPRM proposed to require you to: Raytheon airplane models. The list incorrectly identifies two of the to a Later Service Bulletin for a More —Remove the ADC from the airplane; Complete List of Affected Units —Replace or reprogram applicable parts Raytheon airplane models as 250 and or Circuit Card Assemblies on the 350. The commenter states that these are What Is the Commenter’s Concern? CPU Circuit Card; marketing designators and not part of FAA’s model identity. For the ADC–85/ A commenter states that Rockwell —Test the modified ADC; and Collins Service Bulletin No. 62 (ADC– —Install the modified ADC in the ADC–85A units, the commenter states 85/85A/850C/850D/850E/850F–34–62), airplane. that the correct models are Raytheon B200, B300, and 1900D, and that the Revision 2, dated March 7, 2000, You would have to accomplish the contains a more complete list of affected proposed actions in accordance with Model C90A airplanes should be added to the list. units. The commenter recommends the Rockwell Service Bulletin No. 62 (ADC– incorporation of this service bulletin 85/85A/850C/850F–34–62), dated What Is FAA’s Response to the Concern? into the AD. October 25, 1999. We concur with these comments and What Is FAA’s Response to the Concern? Was the Public Invited To Comment? are changing this proposed rule The FAA concurs that Revision 2 of The FAA encouraged interested accordingly. the service bulletin contains a more persons to participate in the making of Comment Issue No. 4: Add a Placard complete list of affected ADC units. this amendment. The following presents for Temporary Information Regarding Revision 2 reflects the removal of ADC– the comments received on the proposal the Unsafe Condition 850C from the affected list and adds and FAA’s response to each comment: What Is the Commenter’s Concern? ADC–850D to the affected list. However, Comment Issue No. 1: Remove Dassault Service Bulletin No. 62, dated October Aviation Model F2000 From the A commenter states that the pilot 25, 1999, is acceptable for ADC–85/85A/ Applicable Airplane Model List should have some kind of indication of 850F units. Service Bulletin No. 62, the problem if the actions specified in Revision 2, dated March 7, 2000, is What Is the Commenter’s Concern? the service bulletin are not yet acceptable for ADC–85/85A/850D/850F A commenter states that, even though incorporated on the airplane (e.g., units. We will incorporate this bulletin fitted with the subject ADC, the Dassault during the 12 calendar month time into the proposed AD and change the Aviation Model F2000 airplane is not before mandatory compliance). This proposed AD applicability accordingly. designed with the ability to use commenter suggests that FAA should alternate static sources. require the operators to install a placard The FAA’s Determination until the modification is incorporated. What Is FAA’s Response to the Concern? What Has FAA Decided? We concur that the airplane is not What Is FAA’s Response to the Concern? After examining the circumstances designed with the ability to use The FAA does not concur. We and reviewing all available information alternate static sources. Therefore, we evaluated the nature of the unsafe related to the incidents described above, are removing the Dassault Aviation condition against the time proposed for we have determined that: Model F2000 from the applicable compliance when preparing the NPRM. —The unsafe condition exists or could airplane model list. Rockwell Collins did issue Operator develop on airplanes equipped with
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all ADC units identified in the E. that are installed on airplanes presents Cost Impact Compliance section of Rockwell actions that go beyond the scope of what How Many Airplanes Would This Collins Service Bulletin No. 62, was already proposed. Therefore, we are Proposed AD Impact? Revision 2, dated March 7, 2000. issuing a supplemental NPRM and —The NPRM should be expanded to reopening the comment period to allow We estimate that this proposed AD include these additional units; and the public additional time to comment affects more than 329 airplanes in the —AD action should be taken in order to on the proposed AD. U.S. registry. correct this unsafe condition. What Are the Provisions of the What Would Be the Cost Impact of This The Supplemental NPRM Supplemental NPRM? Proposed AD on Owners/Operators of the Affected Airplanes? How Will the Changes to the NPRM This proposed AD would require you Impact the Public? to replace any affected ADC with one We estimate the following costs to that has a reprogrammed and tested accomplish the proposed removal, Proposing that the NPRM apply to CPU circuit card and circuit card installation, reprogramming, and testing certain ADC–850D air data computers assemblies of the ADC in each airplane:
Total cost Labor cost Parts cost Total cost on U.S. per airplane operators
6 workhours × $60 per hour = $360 ...... $680 $1040 $342,160
For units that are still under warranty, under Executive Order 12866; (2) is not the Federal Aviation Administration Rockwell will provide the parts and a ‘‘significant rule’’ under DOT proposes to amend part 39 of the labor at no charge. Regulatory Policies and Procedures (44 Federal Aviation Regulations (14 CFR FR 11034, February 26, 1979); and (3) if part 39) as follows: Regulatory Impact promulgated, will not have a significant Would This Proposed AD Impact economic impact, positive or negative, PART 39—AIRWORTHINESS Various Entities? on a substantial number of small entities DIRECTIVES The regulations proposed herein under the criteria of the Regulatory 1. The authority citation for part 39 would not have a substantial direct Flexibility Act. A copy of the draft continues to read as follows: regulatory evaluation prepared for this effect on the States, on the relationship Authority: 49 U.S.C. 106(g), 40113, 44701. between the national government and action has been placed in the Rules the States, or on the distribution of Docket. A copy of it may be obtained by § 39.13 [Amended] contacting the Rules Docket at the power and responsibilities among the 2. FAA amends § 39.13 by adding a location provided under the caption various levels of government. Therefore, new airworthiness directive (AD) to ADDRESSES. it is determined that this proposed rule read as follows: would not have federalism implications List of Subjects in 14 CFR Part 39 Rockwell Collins, Inc.: Docket No. 2000–CE– under Executive Order 13132. Air transportation, Aircraft, Aviation 14–AD. Would This Proposed AD Involve a safety, Safety. (a) What airplanes are affected by this AD? Significant Rule or Regulatory Action? This AD affects the following Rockwell The Proposed Amendment Collins air data computers (ADC) that are For the reasons discussed above, I installed in, but not limited to the airplanes certify that this proposed action (1) Is Accordingly, under the authority that are listed below: not a ‘‘significant regulatory action’’ delegated to me by the Administrator, (1) Affected ADCs:
Collins part No. Unit (CPN) Applicable to serial No.
ADC–85 (Incorporating Rockwell Collins Service Bulletin No. 58) ...... 622–8051–002 All units. 622–8051–003 ADC–85A (Incorporating Rockwell Collins Service Bulletin No. 58) ...... 822–0370–113 All units. 822–0370–123 822–0370–139 822–0370–404 822–0370–408 ADC–850D (Incorporating Rockwell Collins Service Bulletin No. 58) ..... 822–0389–133 All up to and including 3DGW (except for 1P6D, 22RC–22RF, and 23WK–3DGP). ADC–850F ...... 822–1036–406 All units. 822–1036–418
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(2) List of airplanes where the affected Unit Airplane model (b) Who must comply with this AD? ADC could be installed. This is not a Anyone who wishes to operate any airplane comprehensive list and airplanes not on this ADC–85/ADC–85A Astra AIA. that uses one of the above referenced list that have the ADC installed through field Chinese Y7 and Y8. Rockwell Collins air data computers must approval or other methods are still affected Czech LET–610. comply with this AD. (c) What problem does this AD address? by this AD: DC–8. Falcon 20F. The actions specified by this AD are intended Piaggio P–180. to prevent an unwarranted display of the Raytheon B200, B300, ADC flag when switching static air sources. C90A and 1900D. This could cause the flight crew to react to Saab 340. this incorrect flight information and possibly ADC–850D ...... Lear 60. result in an unsafe operating condition. ADC–850F ...... Falcon 20, 50, and (d) What actions must I accomplish to 50EX. address this problem? To address this problem, you must accomplish the following:
Actions Compliance Procedures
(1) Perform the following, unless already accom- plished:. (i) Remove any affected ADC from the air- planes (ii) As applicable, replace or reprogram parts or circuit card assemblies on central proc- essing unit (CPU) circuit cards (iii) Test the ADC (iv) Install the modified ADC in the airplanes Within the next 12 calendar months In accordance with Rockwell Collins Service Bul- after the effective date of this AD. letin No. 62 (ADC–85/85A/850C/850D/850E/ 850F–34–62), Revision 2, dated March 7, 2000, or Service Bulletin No. 62, dated October 25, 1999, as applicable, the applicable Collins Com- puter Component Maintenance Manual, and Collins Avionics Standard Shop Practices In- struction Manual. (2) Do not install on any airplane one of the af- As of the effective date of this AD ..... In accordance with Rockwell Collins Service Bul- fected ADCs unless the modification and test re- letin No. 62 (ADC–85/85A/850C/850D/850E/ quired by paragraphs (d)(ii) and (d)(iii) of this AD 850F–34–62), Revision 2, dated March 7, 2000, are accomplished. or Service Bulletin No. 62, dated October 25, 1999, as applicable.
Note 1: Rockwell Collins Operator Bulletin eliminated the unsafe condition, specific Issued in Kansas City, Missouri, on March 99–7, dated August 1999, contains actions you propose to address it. 12, 2002. information about an operational placard to (f) Where can I get information about any Dorenda D. Baker, install until accomplishment of the actions of already-approved alternative methods of Acting Manager, Small Airplane Directorate, this AD. While not necessary to address the compliance? Contact Roger A. Souter, FAA, Aircraft Certification Service. unsafe condition in this AD, FAA highly Wichita Aircraft Certification Office (ACO), [FR Doc. 02–6629 Filed 3–19–02; 8:45 am] recommends that you incorporate this placard. 1801 Airport Road, Room 100, Wichita, BILLING CODE 4910–13–P Kansas 67209; telephone: (316) 946–4134; (e) Can I comply with this AD in any other facsimile: (316) 946–4407, e-mail: way? You may use an alternative method of [email protected]. DEPARTMENT OF TRANSPORTATION compliance or adjust the compliance time if: (g) What if I need to fly the airplane to (1) Your alternative method of compliance Federal Aviation Administration provides an equivalent level of safety; and another location to comply with this AD? The (2) The Manager, Wichita Aircraft FAA can issue a special flight permit under Certification Office (ACO), approves your sections 21.197 and 21.199 of the Federal 14 CFR Part 39 alternative. Send your request through an Aviation Regulations (14 CFR 21.197 and [Docket No. 2000–CE–76–AD] FAA Principal Maintenance Inspector, who 21.199) to operate your airplane to a location may add comments and then send it to the where you can accomplish the requirements RIN 2120–AA64 Manager, Wichita ACO. of this AD. Airworthiness Directives; Air Tractor, Note 2: This AD applies to each airplane (h) How do I get copies of the documents identified in paragraph (a) of this AD, referenced in this AD? You may get copies of Inc. Model AT–802 and AT–802A regardless of whether it has been modified, the documents referenced in this AD from Airplanes altered, or repaired in the area subject to the Rockwell Collins, Business and Regional AGENCY: Federal Aviation requirements of this AD. For airplanes that Systems, 400 Collins Road Northeast, Cedar Administration, DOT. have been modified, altered, or repaired so Rapids, Iowa 52498. You may view these ACTION: Notice of proposed rulemaking that the performance of the requirements of documents at FAA, Central Region, Office of (NPRM). this AD is affected, the owner/operator must the Regional Counsel, 901 Locust, Room 506, request approval for an alternative method of Kansas City, Missouri 64106. compliance in accordance with paragraph (e) SUMMARY: This document proposes to of this AD. The request should include an adopt a new airworthiness directive assessment of the effect of the modification, (AD) that would apply to certain Air alteration, or repair on the unsafe condition Tractor, Inc. (Air Tractor) Model AT– addressed by this AD; and, if you have not 802 and AT–802A airplanes. This
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