21-25A - Approval of Modified Seats and Berths

Date Issued

June 03, 1997

Responsible Office

AIR-120,  Aviation Safety - Aircraft Certification Service, Aircraft Engineering Division

Description

Provides information on approvals required for modifications to TSO’d seating systems. This revision incorporates guidance regarding TSO-C127 seating systems and additional information on marking and flammability testing requirements.

• AC21-25A.pdf (PDF)