ST04566AT
Replacement of the AY01-BEA-TSPCU-LRU-01 Touch Screen Power Control Unit (TSPCU) with the AV2232 to control the premium cabin seats position. Held by B/E Aerospace, INC Aftermarket Services (B/E-As). Last revised July 1, 2025. System: cabin, seats and restraints.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company
- Models
- 787-8, 787-9, 777-200 Series, 777-200LR Series, 777-300ER Series
- Type certificates
- T00021SE, T00021SE, T00001SE, T00001SE, T00001SE
- On this site
- Boeing 777 358 registered
Boeing 787 Dreamliner 214 registered - The FAA's record
- On the FAA's site
What an approved modification is
A supplemental type certificate is the FAA's approval of a change to a certified design: a new engine or propeller, avionics, an autopilot, floats, a parachute, a larger fuel tank, an ice-protection kit. The company holding it may sell the kit and the paperwork to owners of the listed models; the modification then becomes part of that aircraft's record. The FAA's list says what was approved and for which models, not how many aircraft carry it.
Source: FAA supplemental type certificates (Dynamic Regulatory System). Register counts from the FAA register of October 21, 2026.