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Sat, Mar 29, 2014

AD: Rockwell Collins, Inc. Transponders

AD NUMBER: 2014-05-27

PRODUCT: Certain Rockwell Collins TPR-720 and TPR-900 Mode select (S) transponders that are installed on airplanes.
SUBJECT: Airworthiness Directive 2014-05-27
ACTION: Final Rule

SUMMARY: This AD was prompted by the identification that the TPR-720 and TPR-900 Mode S transponders respond intermittently to Mode S interrogations from both ground-based and traffic collision avoidance system (TCAS-) equipped airplanes.

This AD requires testing and calibration of the alignment of the transponders.

DATES: This AD is effective May 2, 2014.

FMI: AD

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