Is AD 2006-19-04 a recurring Airworthiness Directive?

No — AD 2006-19-04 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2006-19-04 apply to?

AD 2006-19-04 applies to Honeywell — models RCZ-833J, RCZ-833K, RCZ-851J, RCZ-851K, RCZ-854J, XS-856A, XS-856B, XS-857A. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2006-19-04

one-time

Official AD 2006-19-04 · FR doc E6-14940 · 2006-09-12 · appliance

Airworthiness Directives; Honeywell RCZ-833J/K, -851J/K, and -854J Communication (COM) Units, Equipped with XS-852E/F Mode S Transponders; and Honeywell XS-856A/B and -857A Mode S Transponders; Installed on But Not Limited to Certain Transport Category Airplanes

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain Honeywell COM units and transponders, installed on but not limited to certain transport category airplanes. This AD requires a revision to the Normal Procedures section of the airplane flight manual to advise the flightcrew to check the status of the transponder after changing the air traffic control (ATC) code. This AD also requires replacing certain identification plate(s) with new plate(s), testing certain COM units or transponders as applicable, and corrective action if necessary. For certain airplanes, this AD requires replacing the transponders of certain COM units with new or modified transponders. For certain other airplanes, this AD requires installing a modification into certain transponders. This AD results from the transponder erroneously going into standby mode if the flightcrew takes longer than five seconds when using the rotary knob of the radio management unit to change the ATC code. We are issuing this AD to prevent the transponder of the COM unit from going into standby mode, which could increase the workload on the flightcrew and result in improper functioning of the traffic alert and collision avoidance system.

Which aircraft AD 2006-19-04 applies to

MakesHoneywell

ModelsRCZ-833J, RCZ-833K, RCZ-851J, RCZ-851K, RCZ-854J, XS-856A, XS-856B, XS-857A, RCZ-833, RCZ-851, RCZ-854, XS-856, XS-857

Part-conditional — 7510700-763, 7510700-863, 7510700-765, 7510700-875, 7510700-813, 7510700-815, 7510700-725, 7510700-825.

Honeywell communication (COM) units and Mode S transponders, approved under TSO-C112. Installed on, but not limited to, Bombardier BD-700-1A10 and -1A11; Cessna 550, 560, 650; Dassault Falcon 900EX (S/N 97 and S/Ns 120 and subsequent) and Falcon 2000EX (S/N 6 and S/Ns 28 and subsequent); EMBRAER EMB-135BJ/-135ER/-135KE/-135KL/-135LR and EMB-145 series; Learjet 45; Lockheed 282-44A-05 (C-130B) and 382G series; Raytheon Hawker 800 (incl. U-125A variant), 800XP, and 1000 airplanes. Addresses transponder erroneously entering standby mode.

Whether AD 2006-19-04 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

How AD compliance is recorded

A valid compliance record (14 CFR 43.9) states:

Method of compliance — The specific action taken (inspected, replaced, modified) and to what revision.

Date — When the work was done.

Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.

Signature & certificate — The A&P/IA who returned it to service, with certificate number.

Is AD 2006-19-04 complied with on your aircraft?

Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.

Look up a tail number →Read the full directive (Federal Register)

Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.