United States Government Publishing Office publisher pbl distributor dst United States National Archives and Records Administration Office of the Federal Register author aut Government Organization text government publication eng FR Regulatory Information 2002_register executive 2010-09-23 article Rules and Regulations D09002ee1c81949de D09002ee1c8194bb6 United States Department of Transportation originator org United States Government Agency or Subagency United States Federal Aviation Administration originator org United States Government Agency or Subagency This amendment adopts a new airworthiness directive (AD) that is applicable to certain Boeing Model 737-600, -700, -800, and -900 series airplanes. This action requires measuring the electrical voltage at the circuit breaker for a certain pitot heater to determine if the pitot heater is connected to the correct power supply bus, and performing corrective action, if necessary. This action is necessary to prevent ice from blocking the pitot tube that provides airspeed data to the captain. Such ice blockage could lead to the flightcrew receiving incorrect airspeed data, which could result in loss of control of the airplane if the flightcrew fails to recognize that the data are incorrect. This action is intended to address the identified unsafe condition. 67 FR 46580 https://www.govinfo.gov/app/details/FR-2002-07-16/02-17548 02-17548 fr16jy02-3 RIN 2120-AA64 4910-13-P Docket No. 2002-NM-127-AD Amendment 39-12820 AD 2002-14-20 https://www.govinfo.gov/app/details/FR-2002-07-16/02-17548 https://www.govinfo.gov/content/pkg/FR-2002-07-16/html/02-17548.htm https://www.govinfo.gov/content/pkg/FR-2002-07-16/pdf/02-17548.pdf Air Transportation Aircraft Aviation Safety Incorporation by Reference Safety 2 p. 46580 46581 67 FR 46580 Title 14 Part 39 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Boeing Model 737-600, -700, -800, and -900 Series Airplanes; Federal Register Vol. 67, Issue RULE 02-17548 DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 2002-07-31 Docket No. 2002-NM-127-AD Amendment 39-12820 AD 2002-14-20 4910-13-P 02-17548 Final rule; request for comments.

This amendment adopts a new airworthiness directive (AD) that is applicable to certain Boeing Model 737-600, -700, -800, and -900 series airplanes. This action requires measuring the electrical voltage at the circuit breaker for a certain pitot heater to determine if the pitot heater is connected to the correct power supply bus, and performing corrective action, if necessary. This action is necessary to prevent ice from blocking the pitot tube that provides airspeed data to the captain. Such ice blockage could lead to the flightcrew receiving incorrect airspeed data, which could result in loss of control of the airplane if the flightcrew fails to recognize that the data are incorrect. This action is intended to address the identified unsafe condition.

Effective July 31, 2002. Technical Information: Binh Tran, Aerospace Engineer, Systems and Equipment Branch, ANM-130S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425) 227-2890; fax (425) 227-1181. Air Transportation Aircraft Aviation Safety Incorporation by Reference Safety Airworthiness directives: Boeing, 9-anm-iarcomment@faa.gov judy.golder@faa.gov Vol. 67, no. 136 Office of the Federal Register, National Archives and Records Administration 2002-07-16 continuing daily deposited born digital 269 p. Table of Contents: AE 2.7: GS 4.107: AE 2.106: KF70.A2 https://www.govinfo.gov/app/details/FR-2002-07-16 P0b002ee1809cb118 0097-6326 0042-1219 0364-1406 769-004-00000-9 000582072 f:fr16jy02 https://www.govinfo.gov/app/details/FR-2002-07-16 https://www.govinfo.gov/content/pkg/FR-2002-07-16/pdf/FR-2002-07-16.pdf https://www.govinfo.gov/content/pkg/FR-2002-07-16/xml/FR-2002-07-16.xml fdlp 46577 46836 DGPO 2010-09-23 2024-06-07 FR-2002-07-16 machine generated eng FR FR-2002-07-16 67 136