AD 2009-07-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | MD | Various | Airworthiness Directives; MD Helicopters, Inc. Model MD900 (including the MD902 Configuration) Helicopters |
Unsafe Condition
Failure to comply with the procedures in MDHI Mandatory Service Bulletin SB900-099 R1 may result in reduced anti-torque control during certain combinations of high gross weight, density altitude, and wind critical conditions, potentially leading to loss of directional control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 30 days, reduce the gross weight limit to a maximum gross weight limit of 5,400 pounds by inserting a copy of this AD into the Limitations section of the Rotorcraft Flight Manual. As an optional terminating action, determine if a NOTAR fan felt seal part number 900F3441025-103 is installed; if not, replace it before further flight. Additionally, install a thruster extension kit in accordance with specified portions of SB900-099 R1 before further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 30 days
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Affected Aircraft
MD Helicopters, Inc. Model MD900 (including the MD902 Configuration) helicopters that have not complied with MDHI Mandatory Service Bulletin SB900-099 R1, dated December 27, 2006, certificated in any category.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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