Is AD 2011-20-10 a recurring Airworthiness Directive?

No — AD 2011-20-10 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2011-20-10 apply to?

AD 2011-20-10 applies to The Boeing Company — models 737-600, 737-700, 737-700C, 737-800, 737-900, 737-900ER, 737. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2011-20-10

one-time

Official AD 2011-20-10 · FR doc 2011-25313 · 2011-10-05 · airframe

Airworthiness Directives; The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER Series Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires inspecting to determine the clearance and any wire bundle damage between wire bundle W443 and the left forward rudder quadrant, followed by adjusting the minimum clearance between the wire bundle and the left forward rudder quadrant, and repairing any wire bundle damage. This AD was prompted by reports of contact between wire bundle W443 and the left forward rudder quadrant. We are issuing this AD to detect and correct contact between the wire bundle and the left forward rudder quadrant. Damage to the wire bundle from contact between the wire bundle and the left forward rudder quadrant could result in uncommanded stabilizer trim and autopilot disconnects due to shorted wires, potentially affecting the capability of the flightcrew during high work load and consequently reducing control of the airplane. Restricted movement of the rudder quadrant at full right rudder travel would reduce controllability of the airplane.

Which aircraft AD 2011-20-10 applies to

MakesThe Boeing Company

Models737-600, 737-700, 737-700C, 737-800, 737-900, 737-900ER, 737

Applicable airplanes as identified in Boeing Special Attention Service Bulletin 737-27-1282, Revision 1, dated June 14, 2010.

Whether AD 2011-20-10 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 2011-20-10 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.