
LOPA change
Cabin design
A new LOPA. Then the seats actually match it.
Layout of passenger accommodations designed as a change: seat count, monuments, aisles and the STC that lets the cabin fly.
A typical LOPA change is classified as major and approved by EASA. The data package includes the LOPA, PSU and emergency-path layouts, and the seat documentation.
- Design (DOA)EASA.21J.849
- Production (POA)CZ.21G.0075

What is included
A320, B737 and ATR
LOPA changes for the A320 family, B737 and ATR.
Bizjet cabin layouts
In the same office.
Seats
Seat supply and installation, and refurbishment of existing seats.
Monuments
Monuments and aisles redrawn with the seats.
Fleet repeat
Once the first aircraft is approved.
Cabin layouts
PSU and emergency-path layouts reworked when the seats move.
Typical scope
From a typical narrow-body seat programme: what the data covers, and what the customer provides.
- 1Removal of existing seats and installation of the new ones
- 2Review and change of the PSU layout where required
- 3Rework of the emergency path layout
- 4Seat documentation: CMM, dynamic test and interface load reports, envelope drawings
- 5Approved data and installation instructions for Part 145
Example scope
- B737-300 / -500
Business-class and economy seat change
Seats removed and replaced with refurbished business-class and new economy seats, as a major change approved by EASA.

Refurbished seats
Good to know

Need design data or a certified part?
Send the aircraft, the change or the drawing. We reply within 1 business day.
