Boeing 787s missing tape to stop cargo fires spreading to cabins?
Published Date: 9/28/2026
Rule
Summary
If you own or operate Boeing 787 airplanes, listen up! The FAA found that some planes might be missing fire-blocking tape in the cargo area, which could let a fire spread into the cabin. Starting November 2, 2026, owners must inspect these spots and fix any problems to keep everyone safe—no delays, no excuses!
Analyzed Economic Effects
5 provisions identified: 2 benefits, 3 costs, 0 mixed.
Required repair when tape is missing
If the inspection finds missing BMS5-146 cargo liner joint sealing tape, operators must install the cargo liner joint sealing tape on each affected location; the FAA estimates this on-condition action can take up to 21 work-hours (labor cost up to $1,785) plus $100 in parts, for a total estimated cost up to $1,885 per airplane for the repair.
Reduces risk of fire spreading into cabin
The AD addresses a safety issue where missing BMS5-146 cargo liner joint sealing tape outboard of the left and right monuments forward of Door 1 could allow a fire to propagate from the lower lobe cheek area into the cabin and over-ceiling spaces, potentially leading to loss of continued safe flight and landing; the inspection and on-condition installation are required to address that unsafe condition.
Mandatory inspection of Boeing 787 cargo liners
If you own or operate certain Boeing Model 787-8, 787-9, or 787-10 airplanes identified in Boeing Alert Requirements Bulletin B787-81205-SB530108-00 RB (Issue 001, dated November 5, 2025), you must perform a detailed inspection of the area between the monuments forward of Door 1 and the outer walls for missing BMS5-146 cargo liner joint sealing tape. Compliance begins on the effective date of this AD, November 2, 2026, and must be done at the times specified in the Boeing Requirements Bulletin.
Estimated U.S. inspection cost and fleet scope
The FAA estimates the AD affects 87 U.S.-registered Boeing 787 airplanes and that the detailed inspection will cost $85 per airplane (1 work-hour), for a total estimated cost to U.S. operators of $7,395 to do the inspections.
Possible warranty coverage for costs
The FAA notes that, according to the manufacturer, some or all of the costs of complying with this AD may be covered under warranty, which could reduce the cost impact on affected operators.
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