AD 2008-14-06

final rule
Data completeness: 80%

Airworthiness Directives; Bell Helicopter Textron Canada Model 206L, L-1, L-3, L-4, and 407 Helicopters

AD Number
2008-14-06
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2008-0258
FR Citation
73 FR 39570

Applicability

TypeManufacturerModelDetails
aircraft Textron Canada Model 206L Airworthiness Directives; Bell Helicopter Textron Canada Model 206L, L-1, L-3, L-4, and 407 Helicopters
aircraft Bell Helicopter Textron Canada Model 206L Airworthiness Directives; Bell Helicopter Textron Canada Model 206L, L-1, L-3, L-4, and 407 Helicopters
aircraft Aviat Various Airworthiness Directives; Bell Helicopter Textron Canada Model 206L, L-1, L-3, L-4, and 407 Helicopters

Unsafe Condition

Horizontal stabilizers part numbers 206-023-119-167 and 407-023-801-109 may have manufacturing flaws on the inside surface of the upper and/or lower skin at the tailboom attachment inserts. These flaws may result in cracking of the skin and failure of the horizontal stabilizer.

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

Required Actions

Determine whether an affected serial numbered horizontal stabilizer is installed. If the serial number is listed in the applicable service bulletin, inspect the horizontal stabilizer for cracks, deformation, or debonding. Replace the horizontal stabilizer if any of these conditions are found. If no issues are found, conduct recurring inspections at intervals not exceeding 600 hours time-in-service or during each annual inspection.

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

Compliance Time

Within the next 100 hours time-in-service (TIS) or 30 days, whichever occurs first.

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

Affected Aircraft

Bell Helicopter Textron Canada Models 206L, 206L-1, 206L-3, 206L-4, and 407 helicopters with horizontal stabilizer part numbers 206-023-119-167 or 407-023-801-109 installed, 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 4, 2026

Rights: U.S. Government Public Domain

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