Is AD 99-20056 a recurring Airworthiness Directive?

No — AD 99-20056 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 99-20056 apply to?

AD 99-20056 applies to Raytheon Aircraft Corporation. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 99-20056

one-time

AD 99-20056 · 1999-08-09 · airframe

Airworthiness Directives; Raytheon Aircraft Company Model Beech 1900D Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD) that applies to certain Raytheon Aircraft Company (Raytheon) Model Beech 1900D airplanes that are equipped with the electric elevator trim option. This AD requires installing electric elevator trim servo covers. This AD is the result of reports of the affected airplanes leaving the factory without electric elevator trim servo covers installed. If the covers are not installed, moisture could freeze on parts of the electric actuator. The actions specified by this AD are intended to prevent failure of the electric elevator trim and difficulty operating the manual elevator trim caused by moisture freezing on parts of the electric actuator installation, which would result in the pilot having to apply constant pressure to the control wheel during flight.

Which aircraft AD 99-20056 applies to

MakesRaytheon Aircraft Corporation

Part-conditional — 129-5035-1.

Extracted text begins at the standard 'preceding applicability provision' boilerplate; the AD's actual airplane model list precedes this excerpt and was not captured by extraction. Prevents failure of the electric elevator trim and difficulty operating the manual elevator trim caused by moisture freezing on parts of the electric actuator installation, which would force the pilot to apply constant control-wheel pressure. Requires, within 600 hours TIS, installing electric elevator trim servo covers per Kit No. 129-5035-1, referenced in Raytheon Mandatory Service Bulletin SB 27-3080 (October 1998) and Revision 1 (December 1998).

Whether AD 99-20056 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 99-20056 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.