Document ID: chunk:federal_register_of_legislation:F2008L04487:body:0:p2
Version: federal_register_of_legislation:F2008L04487
Segment Type: other
Provision Reference: 
Character Range: 2905–6182

installed or the serial number of any installed pitot/AOA probe cannot be positively identified, test the pitot/AOA probe heater performance as follows:
                  a. For all probes installed on Eclipse Model EA500 aeroplanes, use Eclipse Aviation Alert Service Bulletin SB 500-34-019, Rev C, dated
                  20 August 2008, and
                  b. For all probes, use Harco Labs, Inc. Service Bulletin SB-34-10-10-001, Revision F, dated 19 August 2008, and Harco Pitot AOA Probe Internal Tubing Heater Verification Test Procedure P1149, Rev: E, also referenced in Appendix A of SB-34-10-10-001 Revision F.
                Completion of the test with all pitot/AOA probes passing terminates the Requirement 2 AFM operational limitations.
                4. If any pitot/AOA probe fails the Requirement 3 test procedure, replace it with a pitot/AOA probe under the following situations:
                  a. The replacement pitot/AOA probe serial number is not affected by this Directive;
                  b. The replacement pitot/AOA probe successfully passes the Requirement 3 test procedure; or
                  c. The replacement pitot/AOA probe fails the test or is not tested and:
                     (i) the Requirement 3 test of the pitot/AOA probe is accomplish, and
                     (ii) a pitot/AOA probe that meets the criteria of Requirement 4.a. or 4.b. is installed within the next 90 days after 30 December 2008.
                Any pitot/AOA probe replacement is to be accomplished following Eclipse Aviation Alert Service Bulletin SB 500-34-019, Rev C, dated 20 August 2008, or by following an approved repair procedure (eg the approved aircraft maintenance manual), as applicable.
                5. Any pitot/AOA probe with P/N 100435-39, 100435-39-001, 100435-40 or 100435-40-001 may not be installed on any aeroplane unless the criteria of Requirement 4.a., 4.b. or 4.c. are met.
                6. Remove the Requirement 2 operating limitations from the Limitations Section of the AFM.
             Note 2:  FAA AD 2008-19-01 Amdt 39-15668 refers.
Compliance:  For Requirement 1 and 2 - Before further flight after 30 December 2008.
             For Requirement 3 and 4 - Within the next 90 days after 30 December 2008.
             For Requirement 5 - As of 18 December 2008 (the effective date of this Directive).
             For Requirement 6 - Before further flight after completion of the Requirement 3 test with all pitot/AOA probes passing or replacement of all failed pitot/AOA probes with:
                  a. pitot/AOA probes having serial numbers not affected by this Directive, or
                  b. pitot/AOA probes successfully passing the test in accordance with Requirement 3.
             This Airworthiness Directive becomes effective on 18 December 2008.
Background:  The United States Federal Aviation Administration has received several reports of airspeed disagree caution indication due to blockage within the pitot/AOA system from freezing condensation.  The Directive is issued to detect and correct improperly performing pitot/AOA probe heaters.

             This condition, if not corrected, could result in a blockage within the pitot/AOA system from condensation freezing with consequent incorrect