AD 2017-20-14

final rule
Data completeness: 70%

Airworthiness Directives; The Boeing Company Airplanes

AD Number
2017-20-14
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2017-0244
FR Citation
82 FR 47363

Applicability

TypeManufacturerModelDetails
aircraft Boeing Company Airworthiness Directives; The Boeing Company Airplanes

Unsafe Condition

Fatigue cracking in certain structural significant items (SSIs) could lead to structural failure.

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

Required Actions

Revise the maintenance or inspection program to add supplemental inspections for SSIs. Inspect each SSI for cracks and repair any cracked structure.

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

Compliance Time

Before the accumulation of 66,000 total flight cycles, or within 12 months after the effective date of this AD, whichever occurs later.

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

Affected Aircraft

The Boeing Company Model 737-300, -400, and -500 series airplanes.

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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