AD 2025-04-01

final rule
Data completeness: 70%

Airworthiness Directives; The Boeing Company Airplanes

AD Number
2025-04-01
Status
final_rule
Effective Date
Product Category
engine
Docket
Docket No. FAA-2023-2236
FR Citation
90 FR 11103

Applicability

TypeManufacturerModelDetails
aircraft Boeing Company Airworthiness Directives; The Boeing Company Airplanes

Unsafe Condition

inlet cowls that are not strengthened, which could, in the event of an FBO occurrence, depart the airplane potentially damaging the airframe structure or striking the fuselage and windows.

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

Required Actions

replacing specified inlet cowl aft bulkhead fasteners for certain airplanes; for certain other airplanes, inspecting the inlet cowl aft bulkhead fastener and replacing the fasteners if rivets are found, and, for all airplanes, replacement of the crushable spacers used in the attachment of the inlet cowl to the engine fan case; or as an option, installing a serviceable inlet cowl.

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

all Boeing Model 737-600, -700, -700C, -800, -900, and -900ER 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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