AD 2017-20-06

final rule
Data completeness: 70%

Airworthiness Directives; Honeywell International Inc. Turbofan Engines

AD Number
2017-20-06
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2017-0034
FR Citation
82 FR 46379

Applicability

TypeManufacturerModelDetails
engine Honeywell International Inc Airworthiness Directives; Honeywell International Inc. Turbofan Engines

Unsafe Condition

Failure of the second stage low-pressure turbine (LPT2) blade due to high-cycle fatigue in the blade's dovetail region, leading to loss of power.

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

Required Actions

Inspect the LPT2 blades using a borescope. If the blades fail the inspection, replace them with a part eligible for installation.

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

Honeywell International Inc. AS907-1-1A turbofan engines with second stage low-pressure turbine (LPT2) rotor blades, part number 3035602-1.

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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