Fuselage - Cargo Liner Joint Sealing Tape - Inspection
- Published
- Takes effect
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Affected operators must perform a detailed inspection of the specified fuselage areas for missing BMS 5-146 cargo liner joint sealing tape by the compliance times outlined in Boeing Alert Requirements Bulletin B787-81205-SB530108-00 RB, Issue 001, dated November 5, 2025. If missing tape is found, operators must install the sealing tape as specified. The AD becomes effective November 2, 2026, and compliance must be achieved by the deadlines specified in the referenced Boeing service bulletin.
Summary
The Federal Aviation Administration's Airworthiness Directive 2026-20-01 addresses certain Boeing Model 787-8, 787-9, and 787-10 airplanes. It mandates inspections for missing Boeing Material Specification 5-146 cargo liner joint sealing tape in specific fuselage areas to prevent potential fire propagation into the cabin. This directive aims to enhance safety by ensuring the integrity of the cargo liner joint sealing tape installation.
What changed
This new airworthiness directive introduces a requirement for a detailed inspection of the cargo liner joint sealing tape located outboard of the left and right side monuments forward of Door 1 on Boeing 787-8, 787-9, and 787-10 airplanes. It also mandates on-condition corrective actions, including installing missing sealing tape where necessary. The directive addresses a production quality escape identified by Boeing and does not amend any previous ADs.
Why it matters
This AD is critical for aviation professionals as missing cargo liner joint sealing tape could allow fire to spread from the lower lobe cheek area into the cabin, posing a significant safety risk. Operators and maintenance teams must ensure compliance to prevent potential fire hazards that could compromise safe flight and landing. The directive also clarifies that the issue stems from production errors, not in-service degradation, focusing inspection efforts accordingly.
More for Boeing 787
All 115- EASA AD US-2026-20-02Master Minimum Equipment List - AmendmentOct 8, 2026
- EASA PAD 26-114Engine – High Pressure Turbine Blades – InspectionSep 24, 2026
- EASA AD US-2026-17-02Wings - Lower Outboard Wing Skin - InspectionsSep 7, 2026
- EASA AD 2026-0117R1Engine – Low Pressure Turbine Discs – InspectionAug 12, 2026
- EASA AD US-2026-13-07Equipment/Furnishings - Doorway Support Bracket - InstallationJul 17, 2026
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