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Airworthiness Directive 97-30057

one-time
AD 97-30057 · 1997-11-20 · airframe

Airworthiness Directives; Raytheon Aircraft Company 90, 100, 200, and 300 Series Airplanes (Formerly Known as Beech Aircraft Corporation 90, 100, 200, and 300 Series Airplanes)

What this AD requires

This amendment adopts a new airworthiness directive (AD) that applies to Raytheon Aircraft Company (Raytheon) 90, 100, 200, and 300 series airplanes. This action requires inspecting gray, blue, or clear Ethylene Vinyl Acetate (EVA) tubing near the co-pilot's foot warmer for collapse or deformity. If the tubing is collapsed or deformed, this action requires replacing and re-routing the tubing. This EVA tubing is used on the pneumatic de-ice indicator lines and the pressurization control system pneumatic lines that provide vacuum to the outflow safety valves that depressurize the airplane. This action is the result of several reports of collapsed EVA tubing. The actions specified by this AD are intended to prevent a loss of vacuum to depressurize the airplane cabin, which could result in personal injury to the door operator; and to prevent malfunction of the de-ice indicator system, which could cause the pilot to immediately exit icing conditions.

Which aircraft AD 97-30057 applies to

MakesRaytheon

Specific model/serial applicability list is in the preceding applicability provision, not present in this excerpt. Addresses collapsed/deformed/misrouted pneumatic pressurization-control and de-ice indicator tubing near the co-pilot's right outboard rudder pedal, per Raytheon Aircraft Company Mandatory Service Bulletin No. 2676.

Whether AD 97-30057 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 97-30057 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.