AD 2012-26-15

Within 30 days after the effective date of this AD: Do the actions in either paragraph (g)(1) or (g)(2) of this AD, except as provided by paragraphs (h) and (i) of this AD.

(1) Remove the affected equipment (i.e., ADC, ADM, ADAHRS, and DADC), as identified in paragraph (c) of this AD, and return the equipment to Honeywell at the applicable address specified in table 1 to paragraphs (g)(1), (g)(2), (h)(1), (h)(2)(i), (i)(1)(i), and (i)(2) of this AD. Before continued operations, the operator must ensure that all of the required equipment is properly installed in the aircraft.

(2) Do a pitot-static certification test, and repeat the test thereafter at intervals not to exceed 30 days, in accordance with paragraph 1.C.(4)(a) 3 of Honeywell Alert Service Bulletin ADM/ADC/ADAHRS-34-A01, dated November 6, 2012. If any pitot-static certification test fails, remove the affected equipment (i.e., ADC, ADM, ADAHRS, or DADC) and return the equipment to Honeywell at the applicable address specified in table 1 to paragraphs (g)(1), (g)(2), (h)(1), (h)(2)(i), (i)(1)(i), and (i)(2) of this AD. Before continued operations, the operator must ensure that all of the required equipment is properly installed in the aircraft.

For The Boeing Company Model 777-200, -200LR, -300, -300ER, and 777F series airplanes; Gulfstream Aerospace Corporation Model GIV-X and GV-SP airplanes; and PILATUS AIRCRAFT LTD., Model PC-12/47E airplanes: In lieu of doing the actions required by paragraph (g) of this AD, within 30 days after the effective date of this AD, do an indicated altitude test, in accordance with the Accomplishment Instructions of Honeywell Alert Service Bulletin ADM/ADC/ADAHRS-34-A01, dated November 6, 2012.

(1) If the indicated altitude exceeds 75 feet (23 meters) from the current aircraft elevation, before further flight, remove the affected equipment (i.e., ADC, ADM, ADAHRS, or DADC) and return the equipment to Honeywell at the applicable address specified in table 1 to paragraphs (g)(1), (g)(2), (h)(1), (h)(2)(i), (i)(1)(i), and (i)(2) of this AD. Before continued operations, the operator must ensure that all of the required equipment is properly installed in the aircraft.

(2) If the indicated altitude is equal to or less than 75 feet (23 meters) of the aircraft elevation, before further flight, do a pressure sensor test, in accordance with the Accomplishment Instructions of Honeywell Alert Service Bulletin ADM/ADC/ADAHRS-34-A01, dated November 6, 2012.

(i) If the pressure error is greater than 0.70 millibar (mB), before further flight, remove the affected equipment (i.e., ADC, ADM, ADAHRS, or DADC) and return the equipment to Honeywell at the applicable address specified in table 1 to paragraphs (g)(1), (g)(2), (h)(1), (h)(2)(i), (i)(1)(i), and (i)(2) of this AD. Before continued operations, the operator must ensure that all of the required equipment is properly installed in the aircraft.

(ii) If the pressure error is greater than 0.50 mB, but less than or equal to 0.70 mB, repeat the test within 30 days after the most recent test.

(iii) If the pressure error is greater than or equal to 0.25 mB, but less than or equal to 0.50 mB, repeat the test within 120 days after the most recent test.

For Airbus Model A318, A319, A320, and A321 airplanes having a manufacturer serial number (MSN) and an ADM identified in Appendix A of Airbus Alert Operators Transmission (AOT) A34N001-12, including Appendices A and B, dated November 15, 2012, for Airbus Model A318/A319/A320/A321 series airplanes; and for Airbus Model A330 series airplanes having an MSN and ADM identified in Appendix A of Airbus AOT A34N001-12, including Appendices A and B, dated November 15, 2012, for Airbus Model A330 series airplanes: In lieu of doing the actions required by paragraph (g) of this AD, within 30 days after the effective date of this AD, do the actions specified in paragraph (i)(1) or (i)(2) of this AD.

(1) Do an ADM check to determine the raw pressure data values from integrated standby instrument system (ISIS) and the affected ADMs, in accordance with Appendix B, “Air Data Module Check Procedure and Reporting Table,” of Airbus AOT A34N001-12, including Appendices A and B, dated November 15, 2012, for Airbus Model A318/A319/A320/A321 series airplanes; or Airbus AOT A34N001-12, including Appendices A and B, dated November 15, 2012, for Airbus Model A330 series airplanes. These checks must be performed by authorized maintenance personnel.

(i) If “P_ISIS—P_ADM” is greater than 22, before further flight, remove the affected ADM and return the ADM to Honeywell at the applicable address specified in table 1 to paragraphs (g)(1), (g)(2), (h)(1), (h)(2)(i), (i)(1)(i), and (i)(2) of this AD. Before continued operations, the operator must ensure that all of the required equipment is properly installed in the aircraft.

(ii) If “P_ISIS—P_ADM” is greater than or equal to 16, but equal to or less than 22, within 30 days after the most recent check, do the ADM check specified in paragraph (i)(1) of this AD.

(iii) If “P_ISIS—P_ADM” is less than 16, within 120 days after the most recent check, do the ADM check specified in paragraph (i)(1) of this AD.

(2) Perform a functional test of the ADM accuracy, in accordance with Airbus AOT A34N001-12, including Appendices A and B, dated November 15, 2012, for Airbus Model A318/A319/A320/A321 series airplanes; or Airbus AOT A34N001-12, including Appendices A and B, dated November 15, 2012, for Airbus Model A330 series airplanes. Repeat the test thereafter at intervals not to exceed 30 days. If any test fails, before further flight, remove the affected ADM and return the ADM to Honeywell at the applicable address specified in table 1 to paragraphs (g)(1), (g)(2), (h)(1), (h)(2)(i), (i)(1)(i), and (i)(2) of this AD. Before continued operations, the operator must ensure that all of the required equipment is properly installed in the aircraft.

(1) For any airplane on which any test specified in paragraph (h) of this AD has been done: At the applicable time specified in paragraph (j)(1)(i) or (j)(1)(ii) of this AD, submit a report of the findings (both pass and fail) of the test specified in paragraph (h) of this AD to Honeywell by email AeroTechSupport@honeywell.com or fax 602-365-1871. The report must include the information specified in Appendix A of Honeywell Alert Service Bulletin ADM/ADC/ADAHRS-34-A01, dated November 6, 2012.

(i) If the test was done on or after the effective date of this AD: Submit the report within 15 days after the test.

(ii) If the test was done before the effective date of this AD: Submit the report within 15 days after the effective date of this AD.

(2) For any airplane on which any test specified in paragraph (h) of this AD, or any check specified in paragraph (i)(1) of this AD, has been done: At the applicable time specified in paragraph (j)(2)(i) or (j)(2)(ii) of this AD, submit a report of the findings (both pass and fail) of the test specified in paragraph (h) of this AD; or the check specified in paragraph (i)(1) of this AD; as applicable; to the Manager, Los Angeles Aircraft Certification Office (ACO), FAA, 3960 Paramount Boulevard, Lakewood, CA 90712-4137.

(i) If the test or check was done on or after the effective date of this AD: Submit the report within 15 days after the test or check.

(ii) If the test or check was done before the effective date of this AD: Submit the report within 15 days after the effective date of this AD.

(3) For Airbus Model A318, A319, A320, A321, A330-200 Freighter, A330-200, and A330-300 series airplanes: At the applicable time specified in paragraph (j)(3)(i) or (j)(3)(ii) of this AD, submit a report of the findings (both pass and fail) of the check required by paragraph (i)(1) of this AD to Honeywell by email AeroTechSupport@honeywell.com or fax 602-365-1871. The report must include the information specified in the reporting sheet in Appendix B, “Air Data Module Check Procedure and Reporting Table,” of Airbus AOT A34N001-12, including Appendices A and B, dated November 15, 2012, for Airbus Model A318/A319/A320/A321 series airplanes; or Airbus AOT A34N001-12, including Appendices A and B, dated November 15, 2012, for Airbus Model A330 series airplanes.

(i) If the check was done on or after the effective date of this AD: Submit the report within 15 days after the check.

(ii) If the check was done before the effective date of this AD: Submit the report within 15 days after the effective date of this AD.

As of the effective date of this AD, no person may install air data pressure transducers in air data computers, air data modules, air data attitude heading reference systems, and digital air data computers, having the part numbers and serial numbers identified in Honeywell Alert Service Bulletin ADM/ADC/ADAHRS-34-A01, dated November 6, 2012, on any aircraft.

A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to a penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a current valid OMB Control Number. The OMB Control Number for this information collection is 2120-0056. Public reporting for this collection of information is estimated to be approximately 5 minutes per response, including the time for reviewing instructions, completing and reviewing the collection of information. All responses to this collection of information are mandatory. Comments concerning the accuracy of this burden and suggestions for reducing the burden should be directed to the FAA at: 800 Independence Ave. SW., Washington, DC 20591, Attn: Information Collection Clearance Officer, AES-200.