AD 2000-04-20

final rule
Data completeness: 70%

Airworthiness Directives; Bell Helicopter Textron Canada Model 407 Helicopters

AD Number
2000-04-20
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 98-SW-64-AD
FR Citation
65 FR 10937

Applicability

TypeManufacturerModelDetails
aircraft Textron Canada Model 407 Airworthiness Directives; Bell Helicopter Textron Canada Model 407 Helicopters
aircraft Bell Helicopter Textron Canada Model 407 Airworthiness Directives; Bell Helicopter Textron Canada Model 407 Helicopters

Unsafe Condition

Manufacturing defect in a hydraulic relief valve causing intermittent loss of hydraulic pressure to the flight controls and potential loss of control.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Replace the specified hydraulic relief valve with a different valve.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Before further flight.

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Bell Helicopter Textron Canada Model 407 helicopters.

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

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.

View Official Source ↗ Find More ADs for Textron Canada Model 407

Related Airworthiness Directives

2009-22-11

final rule

Airworthiness Directives; Bell Helicopter Textron Canada Model 407 and 427 Helicopters

Unsafe Condition: could result in failure of a bearing, failure of the swashplate link assembly, and subsequent loss of control of the helicopter.

Effective: Nov 16, 2009 Category: aircraft

2005-03-07

final rule

Airworthiness Directives; Bell Helicopter Textron Canada Model 407 Helicopters

Unsafe Condition: This amendment adopts a new airworthiness directive (AD) for Bell Helicopter Textron Canada (Bell) Model 407 helicopters that requires creating a component history card or equivalent record for eac...

Effective: Mar 17, 2005 Category: aircraft

2004-10-07

final rule

Airworthiness Directives; Bell Helicopter Textron Canada Model 407 Helicopters

Unsafe Condition: This amendment supersedes an existing airworthiness directive (AD) for Bell Helicopter Textron Canada (BHTC) Model 407 helicopters which requires a one-time replacement of certain oil cooler blower...

Effective: Jun 4, 2004 Category: aircraft

2003-05-03 Recurring

final rule

Airworthiness Directives; Bell Helicopter Textron Canada Model 407 Helicopters

Unsafe Condition: This amendment adopts a new airworthiness directive (AD) for the specified Bell Helicopter Textron Canada (Bell) model helicopters that requires preflight checking and repetitively inspecting for a...

Effective: Apr 17, 2003 Category: aircraft

View all Textron ADs →