Airworthiness Directive · Amendment 39-11828 · Bombardier Model CL-600-2B19 Series Airplanes
Bombardier Model CL-600-2B19 Series Airplanes
Model CL-600-2B19 series airplanes having serial numbers 7003 through 7207 inclusive, certificated in any category; except those airplanes on which Canadair Regional Jet Service Bulletin S.B. 601R-34-094, Revision ‘B,’ dated November 14, 1997, has been accomplished.
Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been otherwise 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 (d) 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.
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Bombardier Model CL-600-2B19 series airplanes, that currently requires revising the Airplane Flight Manual (AFM) to require the flight crew to check, and reset, if necessary, certain instrument settings prior to each takeoff and after any event during which generators are switched. This amendment adds a new revision to the AFM and revises the applicability of the existing AD. This amendment also requires modification of the air data reference systems. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent uncommanded changes in certain instrument settings on the pilot's and co-pilot's instrument displays, which could result in confusion among the flight crew about the correct position and flight configuration of the airplane.
To prevent uncommanded changes in the settings on the pilot's and co-pilot's instrument displays, which could result in confusion among the flight crew about the correct position and flight configuration of the airplane, accomplish the following:
(a) Within 3 days after October 15, 1996 (the effective date of AD 96-21-02, amendment 39-9778), revise the Limitations Section of the FAA-approved Airplane Flight Manual (AFM) to include the following statement. This may be accomplished by inserting a copy of this AD in the AFM.
“Prior to each takeoff and after any event during which generators are switched, check the settings of the barometric altimeter, altitude pre-selector, V-speed, and speed bug. If any discrepancy is detected, reset, as necessary.”
(b) Within 2 days after the effective date of this AD, revise the Emergency, Normal, and Abnormal Procedures Sections, and Supplements 4 and 8 of the FAA-approved AFM by inserting Canadair Regional Jet Temporary Revision RJ/50-2, dated June 1, 1997, into the applicable section of the AFM.
Note 2: The AFM revisions required by paragraph (b) of this AD are accomplished by inserting a copy of the Temporary Revisions into the applicable section of the AFM. When these Temporary Revisions have been incorporated into the general revisions of the AFM, the general revisions may be inserted into the AFM, provided that the information contained in the general revisions is identical to that specified in the Temporary Revisions.
(c) Within 18 months after the effective date of this AD, modify the air data reference systems in accordance with Canadair Regional Jet Service Bulletin S.B. 601R-34-094, Revision ‘B,’ dated November 14, 1997. After accomplishment of the modification, the AFM revisions required by paragraphs (a) and (b) of this AD may be removed from the AFM.
Note 3: Accomplishment of the modification in accordance with Canadair Regional Jet Service Bulletin S.B. 601R-34-094, Revision “C,” dated September 17, 1998; Revision “D,” dated March 12, 1999; or Revision “E,” dated October 12, 1999; is acceptable for compliance with the requirements of paragraph (c) of this AD.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
