AD 2019-23-12

final rule
Data completeness: 70%

Airworthiness Directives; The Boeing Company Airplanes

AD Number
2019-23-12
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2019-0440
FR Citation
84 FR 67176

Applicability

TypeManufacturerModelDetails
aircraft Boeing Company Airworthiness Directives; The Boeing Company Airplanes

Unsafe Condition

potential ignition sources inside the fuel tank, which, in combination with flammable vapors, could result in a fuel tank fire or explosion, and consequent loss of the airplane.

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

Required Actions

applying sealant to the fasteners in the fuel tanks, replacing wire bundle clamps external to the fuel tanks, and installing Teflon sleeving under the clamps.

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

Compliance Time

Within 516 work-hours

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

Affected Aircraft

all 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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