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Airworthiness Directive 2008-21-01

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Official AD 2008-21-01 · FR doc E8-23400 · 2008-10-07 · airframe

Airworthiness Directives; Hawker Beechcraft Corporation Model BAe.125 Series 800A (including C-29A and U-125) Airplanes, and Hawker Beechcraft Model Hawker 800XP Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for certain Hawker Beechcraft Corporation Model BAe.125 series 800A (including C- 29A and U-125) airplanes, and Hawker Beechcraft Model Hawker 800XP airplanes. This AD requires doing an inspection to determine the serial number and part number on the main landing gear (MLG) upper casing, and replacing the MLG assembly with a serviceable MLG assembly if necessary. This AD results from a report indicating that the MLG casings have received improper hydrogen embrittlement relief. We are issuing this AD to prevent a fracture of the MLG casings and a collapse of the affected MLG, which could adversely affect the airplane's continued safe flight and landing.

Which aircraft AD 2008-21-01 applies to

MakesHawker Beechcraft
Models800A, C-29A, U-125, 800XP, BAe.125, 800

Applies to airplanes having serial numbers identified in Hawker Beechcraft Mandatory Service Bulletin SB 32-3920, dated August 2008; concerns main landing gear (MLG) casings with improper hydrogen embrittlement relief.

Whether AD 2008-21-01 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 2008-21-01 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.