# Federal Register #AD 2026-20-01

FAA Airworthiness Directive for Boeing 787 Series: Inspection and Installation of Cargo Liner Joint Sealing Tape

**Buyer:** Federal Aviation Administration
**Posted:** September 28, 2026
**Identifier:** AD 2026-20-01
**NAICS:** 488190

This opportunity relates to a regulatory safety action issued by the Federal Aviation Administration (FAA) for Boeing 787 series airplanes.
- Government Buyer:
  - Federal Aviation Administration (FAA), Department of Transportation
- OEMs Mentioned:
  - The Boeing Company
- Products/Services Requested:
  - Inspection for missing BMS5-146 cargo liner joint sealing tape on Boeing 787-8, 787-9, and 787-10 airplanes
    - 87 U.S. airplanes affected
    - Installation of BMS5-146 cargo liner joint sealing tape as an on-condition action
  - Reference to Boeing Alert Requirements Bulletin B787-81205-SB530108-00 RB, Issue 001
- Unique/Notable Requirements:
  - Compliance with detailed inspection and corrective actions as specified in the Boeing bulletin
  - No procurement of products or services; this is a regulatory directive
  - Addresses fire safety risk due to missing tape
- Additional AD for Helicopteres Guimbal Model Cabri G2 helicopters:
  - Revision of rotorcraft flight manual to address weak emergency locator transmitter signals
  - No procurement involved, only manual revision
- No purchase quantities or contract value; directive mandates compliance actions only

### Description

The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 787-8, 787-9, and 787-10 airplanes. This AD addresses the issue of missing cargo liner joint sealing tape in specific areas, which could allow fire to propagate into the cabin. It requires a detailed inspection for the missing tape and applicable on-condition actions to ensure safety. The directive aims to prevent fire propagation and maintain safe flight and landing.

[View original listing](https://www.federalregister.gov/documents/2026/09/28/2026-19754/airworthiness-directives-the-boeing-company-airplanes)