Is AD 2016-24860 a recurring Airworthiness Directive?

Yes — AD 2016-24860 requires a repetitive inspection every 400 hours. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2016-24860 apply to?

AD 2016-24860 applies to Airbus Helicopters — models MBB-BK 117 C-2, MBB-BK117. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2016-24860

recurring

AD 2016-24860 · 2016-10-20 · airframe

Airworthiness Directives; Airbus Helicopters Deutschland GmbH (Previously Eurocopter Deutschland GmbH) (Airbus Helicopters) Helicopters

What this AD requires

We are adopting a new airworthiness directive (AD) for Airbus Helicopters Model MBB-BK 117 C-2 helicopters with certain duplex trim actuators installed. This AD requires repetitively inspecting the lateral and longitudinal trim actuator output levers for correct torque of the nuts. This AD was prompted by a design review that indicated the attachment screws can become loose under certain circumstances. These actions are intended to prevent the loss of an attachment screw, which could result in movement of the output lever in an axial direction, contact of a bolt connecting the control rod to an output lever with the actuator housing, and subsequent loss of helicopter control.

Repetitive inspection. Re-inspect every 400 hours. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2016-24860 applies to

MakesAirbus Helicopters

ModelsMBB-BK 117 C-2, MBB-BK117

Part-conditional — 418-00878-050, 418-00878-051, 418-00878-000, 418-00878-001.

Applies to helicopters with a lateral duplex trim actuator, P/N 418-00878-050 or P/N 418-00878-051, or a longitudinal duplex trim actuator, P/N 418-00878-000 or P/N 418-00878-001, installed.

Whether AD 2016-24860 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 2016-24860 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.