[Code of Federal Regulations] [Title 14, Volume 2] [Revised as of January 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 14CFR125.151] [Page 582] TITLE 14--AERONAUTICSAND SPACE CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) PART 125--CERTIFICATION AND OPERATIONS: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT--Table of Contents Subpart E--Special Airworthiness Requirements Sec. 125.151 Powerplant fire protection. (a) Designated fire zones must be protected from fire by compliance with Secs. 125.153 through 125.159. (b) Designated fire zones are-- (1) Engine accessory sections; (2) Installations where no isolation is provided between the engine and accessory compartment; and (3) Areas that contain auxiliary power units, fuel-burning heaters, and other combustion equipment.