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2011-21-07 R1: Navigation

FAA order 2011-21-07 R1 is an airworthiness directive in force since December 18, 2012. The FAA's subject line: Navigation. It names Bombardier CL-600 Challenger and CRJ: about 1,655 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: instruments and avionics.

What it applies to as the FAA lists it

Kind of product
Aircraft
Makes
Bombardier Inc.
Models
CL-600-2B19 (Regional Jet Series 100), CL-600-2B19 (Regional Jet Series 440), CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702), CL-600-2D15 (Regional Jet Series 705), CL-600-2D24 (Regional Jet Series 900)
On this site
Bombardier CL-600 Challenger and CRJ 1,655 registered

Dates and paperwork

In force since
December 18, 2012
Published
November 13, 2012 (signed September 28, 2012)
Docket
FAA-2012-0335
Replaces
2011-21-07
Status
Current
The FAA's document
Read the order on the FAA's site

The FAA's summary their words, unchanged

We are revising an existing airworthiness directive (AD) for certain Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes; all Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes; all Model CL-600-2D15 (Regional Jet Series 705) airplanes; and all Model CL-600-2D24 (Regional Jet Series 900) airplanes. That AD currently requires replacing certain water accumulator assemblies having a certain part installed on the pitot and static lines of the air data computer (ADC). This new AD corrects an erroneous service document number and removes the other erroneously cited service document from that AD. This new AD was prompted by an error that was discovered in one service document number, and a determination that credit for accomplishing actions in another erroneously cited service document should be removed from that AD. We are issuing this AD to prevent pitot-static tubing from becoming partially or completely blocked by water, which could result in erroneous airspeed and altitude indications and consequent loss of control of the airplane.

The order itself the regulatory text, as published

Show the full text (7,639 characters)
Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: PART 39--AIRWORTHINESS DIRECTIVES 0 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] 0 2. The FAA amends Sec. 39.13 by removing Amendment 39-16830 (76 FR 64801, October 19, 2011), and adding the following new AD: 2011-21-07 R1 Bombardier, Inc.: Amendment 39-17211. Docket No. FAA- 2012-0335; Directorate Identifier 2011-NM-252-AD. (a) Effective Date This airworthiness directive (AD) becomes effective December 18, 2012. [[Page 67561]] (b) Affected ADs This AD revises AD 2011-21-07, Amendment 39-16830 (76 FR 64801, October 19, 2011). (c) Applicability This AD applies to Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes, serial numbers 7003 through 7067 inclusive, 7069through 7990 inclusive, 8000 through 8107 inclusive, and subsequent; all Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes; all Model CL-600-2D15 (Regional Jet Series 705) airplanes; and all Model CL-600-2D24 (Regional Jet Series 900) airplanes; certificated in any category. (d) Subject Air Transport Association (ATA) of America Code 34, Navigation. (e) Reason This AD was prompted by reports of airspeed mismatch between the pilot and co-pilot's airspeed indicators. We are issuing this AD prevent pitot-static tubing from becoming partially or completely blocked by water, which could result in erroneous airspeed and altitude indications and consequent loss of control of the airplane. (f) Compliance You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. (g) Retained Replacement This paragraph restates the requirements of paragraph(g) of AD 2011-21-07, Amendment 39-16830 (76 FR 64801, October 19, 2011). Within 9 months after November 23, 2011 (the effective date of AD 2011-21-07), do the actions specified in paragraphs (g)(1) and (g)(2) of this AD, as applicable. (1) For Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes identified in Bombardier Service Bulletin 601R-34-147, Revision B, dated March 8, 2011: Replace water accumulator assemblies having part numbers (P/N) 50029-001, 9435015, 50030-001, and 9435014 installed on the pitot and static lines of the air data computer (ADC) with new or serviceable water accumulator assemblies having P/N 50036-001, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 601R-34-147, Revision B, dated March 8, 2011. (2) For Model CL-600-2C10 (Regional Jet Series 700, 701, & 702), CL-600-2D15 (Regional Jet Series 705), and CL-600-2D24 (Regional Jet Series 900) airplanes: Replace water accumulator assemblies having P/N 50033-001 installed on the pitot and static lines of the ADC with new or serviceable water accumulator assemblies having P/N 50036-001, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 670BA-34-030, Revision B, dated March 23, 2010. (h) Parts Installation Prohibition As of November 23, 2011 (the effective date of AD 2011-21-07, Amendment 39-16830 (76 FR 64801, October 19, 2011)), no person may install on any airplane a water accumulator assembly, P/N 50029-001, 9435015, 50030-001, or 9435014 for Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes; or P/N 50033-001 for Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes, Model CL-600-2D15 (Regional Jet Series 705) airplanes, and Model CL-600-2D24 (Regional Jet Series 900) airplanes; on the pitot and static lines of the ADC. (i) Credit for Previous Actions This paragraph restates the provisions of paragraph (i) of AD 2011-21-07, Amendment 39-16830 (76 FR 64801, October 19, 2011), with corrections. (1) This paragraph provides credit for the replacement required by paragraph (g)(1) of this AD, if the replacement was performed before November 23, 2011 (the effective date of AD 2011-21-07, Amendment 39-16830 (76 FR 64801, October 19, 2011)), using Bombardier Service Bulletin 601R-34-147, Revision A, dated November 3, 2009 (for Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes). (2) This paragraph provides credit for the replacement required by paragraph (g)(2) of this AD, if the replacement was performed before November 23, 2011 (the effective date of AD 2011-21-07, Amendment 39-16830 (76 FR 64801, October 19, 2011)), using Bombardier Service Bulletin 670BA-34-030, dated April 1, 2009; or Revision A, dated November 3, 2009 (for Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes, Model CL-600-2D15 (Regional Jet Series 705) airplanes, and Model CL-600-2D24 (Regional Jet Series 900) airplanes). (j) Other FAA AD ProvisionsThe following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, New York Aircraft Certification Office (ACO), ANE-170, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the ACO, send it to ATTN: Program Manager, Continuing Operational Safety, FAA, New York ACO, 1600 Stewart Avenue, Suite 410, Westbury, New York 11590; telephone: (516) 228-7300; fax: (516) 794-5531. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. The AMOC approval letter must specifically reference this AD. (2) Airworthy Product: For any requirement in this AD to obtain corrective actions from a manufacturer or other source, use these actions if they are FAA-approved. Corrective actions are considered FAA-approved if they are approved by the State of Design Authority (or their delegated agent). You are required to assure the product is airworthy before it is returned to service. (k) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise. (3) The following service information was approved for IBR on November 23, 2011 (76 FR 64801, October 19, 2011). (i) Bombardier Service Bulletin 601R-34-147, Revision B, dated March 8, 2011. (ii) Bombardier Service Bulletin 670BA-34-030, Revision B, dated March 23, 2010. (4) For service information identified in this AD, contact Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec H4S 1Y9, Canada; phone: 514-855-5000; fax: 514-855- 7401; email: [email protected]; Internet: http://www.bombardier.com. (5) You may review copies of the service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425-227-1221. (6) You may view this service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.

Related safety bulletins advice on the same designs, not orders

2021-09-16AIR-21-15R1 · Navigation System
2021-08-26AIR-21-15 · Navigation System
2020-03-18NM-20-03 · Landing Gear: Brake Control Valve
2019-02-19NE-19-03 · Escape Slide Maintenance Tasks and Intervals - JASC 2565
2011-08-30NM-11-51 · Ice and Rain Protection: Wing Anti-Ice System

Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/2011-21-07 R1.json · aircraft systems.