AD Amdt-39-13221

[Federal Register Volume 68, Number 158 (Friday, August 15, 2003)]
[Rules and Regulations]
[Pages 48783-48784]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 03-20834]


=======================================================================
-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 2001-NM-322-AD; Amendment 39-13221; AD 2003-14-02 R1]
RIN 2120-AA64


Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional 
Jet Series 100 & 440) Airplanes

AGENCY: Federal Aviation Administration, DOT.

ACTION: Final rule; correction.

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

SUMMARY: This document corrects information in an existing 
airworthiness directive (AD) that applies to certain Bombardier Model 
CL-600-2B19 (Regional Jet series 100 & 440) airplanes. That AD 
currently requires a one-time inspection of the aft edge of the left 
and right main windshields to determine whether a certain placard is 
installed, and corrective actions if necessary. This document corrects 
several incorrect references to the affected airplane models. This 
correction is necessary to ensure that model designations are specified 
as published in the most recent type certificate data sheet for the 
affected models.

DATES: Effective August 14, 2003.
    The incorporation by reference of Bombardier Service Bulletin 601R-
56-004, dated August 16, 2001, as listed in the regulations, was 
approved previously by the Director of the Federal Register as of 
August 14, 2003 (68 FR 41059, July 10, 2003).

FOR FURTHER INFORMATION CONTACT: Serge Napoleon, Aerospace Engineer, 
Airframe and Propulsion Branch, ANE-171, FAA, New York Aircraft 
Certification Office, 10 Fifth Street, Third Floor, Valley Stream, New 
York 11581; telephone (516) 256-7512; fax (516) 568-2716.

SUPPLEMENTARY INFORMATION: On July 1, 2003, the Federal Aviation 
Administration (FAA) issued airworthiness directive (AD) 2003-14-02, 
amendment 39-13221 (68 FR 41059, July 10, 2003), which applies to 
certain Bombardier Model CL-600-2B19 (Regional Jet series 100 & 440) 
airplanes. That AD requires a one-time inspection of the aft edge of 
the left and right main windshields to determine whether a certain 
placard is installed, and corrective actions if necessary. That AD was 
prompted by a significant number of cracking incidents that occurred in 
the inner and middle panes of the main windshields during taxi, 
takeoff, climb, cruise, and descent of the airplane. The actions 
required by that AD are intended to prevent stress-related cracking of 
the windshields, and subsequent excessive frequency of abnormal 
procedures specified in the airplane flight manual and/or an emergency 
descent be accomplished, which poses an increased risk to passengers 
and crew members.

Need for the Correction

    As published, that AD contains several incorrect references to the 
affected airplane models. As discussed in the preamble of that AD, we 
intended to revise the applicability of the final rule to identify 
model designations as published in the most recent type certificate 
data sheet. However, Regional Jet series ``400,'' which does not exist, 
was inadvertently indicated in several references instead of the 
correct model designation Regional Jet series ``440.'' The correct 
model designation (Bombardier Model CL-600-2B19 (Regional Jet Series 
100 & 440) airplanes) was listed in the title of the AD.
    The FAA has determined that a correction to AD 2003-14-02 is 
necessary. The correction will properly specify model designations as 
published in the most recent type certificate data sheet for the 
affected models.

Correction of Publication

    This document corrects the error and correctly adds the AD as an 
amendment to section 39.13 of the Federal Aviation Regulations (14 CFR 
39.13).
    The AD is reprinted in its entirety with the changes incorporated 
for the convenience of affected operators. The effective date of the AD 
remains August 14, 2003.
    Since this action only specifies model designations as published in 
the most recent type certificate data sheet for the affected models, it 
has no adverse economic impact and imposes no additional burden on any 
person. Therefore, the FAA has determined that notice and public 
procedures are unnecessary.

Restatement of Supplemental Information Section of AD 2003-14-02

    A proposal to amend part 39 of the Federal Aviation Regulations (14 
CFR part 39) to include an AD that is applicable to certain Bombardier 
Model CL-600-2B19 series airplanes was published in the Federal 
Register on May 20, 2002 (67 FR 35461). That action proposed to require 
a one-time inspection of the aft edge of the left and right main 
windshields to determine whether a certain placard is installed, and 
corrective actions if necessary.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

Adoption of the Correction

0
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

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  [Corrected]

0
2. Section 39.13 is amended by correctly adding the following 
airworthiness directive (AD):

AD 2003-14-02 R1 Bombardier, Inc. (Formerly Canadair): Amendment 39-
13221. Docket 2001-NM-322-AD.

    Applicability: Model CL-600-2B19 (Regional Jet series 100 & 440) 
airplanes; certificated in any category; serial numbers 7003 and 
subsequent; equipped with main windshield units, part numbers 
601R33033-1, -2, -5, -6, -9, or -10.
    Compliance: Required as indicated, unless accomplished 
previously.

    Note 1: This AD applies to each airplane identified in the 
preceding applicability provision, 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 (b) 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 the unsafe condition has not been 
eliminated, the request should include specific proposed actions to 
address it.

    Compliance: Required as indicated, unless accomplished 
previously.
    To prevent stress-related cracking of the windshields, and 
subsequent excessive frequency of abnormal procedures specified in 
the airplane flight manual and/or an emergency descent be 
accomplished, which poses an increased risk to passengers and crew 
members; accomplish the following:

[[Page 48784]]

Inspection and Corrective Action

    (a) For airplanes equipped with windshield units that have 
accumulated fewer than 2,500 total flight cycles as of the effective 
date of this AD: Within 6 months after 3 the effective date of this 
AD, accomplish a one-time general visual inspection of the aft edges 
of the left and right main windshields to determine whether a 
placard having part number (P/N) CSB-NP-139321-002-1 is installed, 
per the Accomplishment Instructions of Bombardier Service Bulletin 
601R-56-004, dated August 16, 2001.
    (1) If a placard having P/N CSB-NP-139321-002-1 is installed, no 
further action is required by this AD.
    (2) If a placard having a P/N other than CSB-NP-139321-002-1 is 
installed, before further flight, accomplish the corrective actions 
(including modifying the main windshields by replacing nine of the 
hi-lok pins installed in the lower forward corner of the windshields 
with hi-lok pins having a reduced diameter shank, installing a 
placard having the correct P/N on the inner retainer near the part 
identification placard located along the aft edge of the window, and 
replacing any torn or deformed gasket), per the Accomplishment 
Instructions of the service bulletin.

    Note 2: For the purposes of this AD, a general visual inspection 
is defined as: ``A visual examination of an interior or exterior 
area, installation, or assembly to detect obvious damage, failure, 
or irregularity. This level of inspection is made from within 
touching distance unless otherwise specified. A mirror may be 
necessary to enhance visual access to all exposed surfaces in the 
inspection area. This level of inspection is made under normally 
available lighting conditions such as daylight, hangar lighting, 
flashlight, or droplight and may require removal or opening of 
access panels or doors. Stands, ladders, or platforms may be 
required to gain proximity to the area being checked.''


    Note 3: Bombardier Service Bulletin 601R-56-004, dated August 
16, 2001, references PPG Industries, Inc., Service Bulletin CSB-NP-
139321-002, Revision C, dated July 31, 2001, as an additional source 
of service information for accomplishment of the modification of the 
left and right main windshields.

 4Alternative Methods of Compliance

    (b) An alternative method of compliance or adjustment of the 
compliance time that provides an acceptable level of safety may be 
used if approved by the Manager, New York Aircraft Certification 
Office (ACO), FAA. Operators shall submit their requests through an 
appropriate FAA Principal Maintenance Inspector, who may add 
comments and then send it to the Manager, New York ACO.

    Note 4: Information concerning the existence of approved 
alternative methods of compliance with this AD, if any, may be 
obtained from the New York ACO.

Special Flight Permit

    (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.

Incorporation by Reference

    (d) The actions shall be done in accordance with Bombardier 
Service Bulletin 601R-56-004, dated August 16, 2001. The 
incorporation by reference of that document was approved previously 
by the Director of the Federal Register as of August 14, 2003 (68 FR 
41059, July 10, 2003). Copies may be obtained from Bombardier, Inc., 
Canadair, Aerospace Group, PO Box 6087, Station Centre-ville, 
Montreal, Quebec H3C 3G9, Canada. Copies may be inspected at the 
FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, 
Washington; or at the FAA, New York Aircraft Certification Office, 
10 Fifth Street, Third Floor, Valley Stream, New York; or at the 
Office of the Federal Register, 800 North Capitol Street, NW., suite 
700, Washington, DC.

    Note 5: The subject of this AD is addressed in Canadian 
airworthiness directive CF-2001-35R1, dated September 27, 2001.

Effective Date

    (e) The effective date of this amendment remains August 11, 
2003.

    Issued in Renton, Washington, on August 11, 2003.
Neil D. Schalekamp,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 03-20834 Filed 8-14-03; 8:45 am]
BILLING CODE 4910-13-P