Airworthiness Directive 2002-10-05

one-time
Official AD 2002-10-05 · FR doc 02-12051 · 2002-05-15 · airframe

Airworthiness Directives; MD Helicopters Inc. Model MD-900 Helicopters

What this AD requires

This amendment supersedes an existing airworthiness directive (AD), applicable to MD Helicopters Inc. Model MD-900 helicopters, that currently requires inspecting the main rotor upper hub (hub) assembly drive plate attachment flange (flange), determining the torque of each flange nut (nut), and if a crack is found, before further flight, replacing the hub assembly. In addition to the current requirements, this action requires visually inspecting the outer surface of the flange at specified intervals, removing the drive plate and visually inspecting the flange for a crack at specified intervals, and replacing any unairworthy hub assembly. This amendment is prompted by reports that cracks starting at the drive plate attachment holes were found in the hub. The actions specified by this AD are intended to detect a crack in the flange and to prevent failure of the hub assembly, loss of drive to the main rotor, and subsequent loss of control of the helicopter.

Which aircraft AD 2002-10-05 applies to

MakesMd Helicopters
Models900
Part-conditional900R2101006-107, 900R2101006-105.

Inspects main rotor hub assembly drive-plate attach flange for cracking and attach-nut torque, hub assembly P/N 900R2101006-105/-107, per MD Helicopters SB900-072 dated Dec 10, 1999 (Model 900 inferred from SB number/part-number prefix, not stated as literal model text).

Whether AD 2002-10-05 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 complianceThe specific action taken (inspected, replaced, modified) and to what revision.
DateWhen the work was done.
Aircraft timeTotal time in service / tach at compliance — how recurring next-due is computed.
Signature & certificateThe A&P/IA who returned it to service, with certificate number.
Is AD 2002-10-05 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.