Some airlines are introducing Turbonycoil of the Nyco company in France.  This can be Turbonycoil 600 or 640 for use in the engines, APU or IDG.

TEN 845Installation of an auxiliary rack E8-1V that provides provisions forLRUs to be installed in the Electronics and Engineering Bay. The E8-1Vis located between FS 312 - FS 328and LBL 3.75 - LBL 27.4 at WL200. Itis weight limited to hold up to 50 lbs of equipment.

Installation of high temperature, semi-rigid, coaxial fire/overheat detection wire harness cable assemblies in accordance with FAA approved Meggitt Safety Systems 737-600/700/800/900 Simi-Rigid, Engine Fire Cable STC Master Drawing List No. 904629, Revision A, dated July 10, 2003, or a later FAA approved revision.

Relocation of High Frequency Tranceivers 1 and 2 (HF1 and HF2), Cockpit Voice Recorder (CVR), Flight Data Recorder (FDR), and Auxiliary Power Unit Electronic Control Unit (APUECU); and Removal of E6 Electronics Rack.

Conversion of a Boeing 737-700 Increased Gross Weight (IGW) aircraft configuration airplane to an Airborne Early Warning & Control (AEW&C) aircraft configuration in accordance with Boeing Documents D725-10371-5, aircraft serial number (S/N) 33474, Modification Revision Master Drawing List (MDL), dated May 7, 2009; D751-10350-4, aircraft S/N 33962, Modification Revision MDL, dated July 1, 2010; and D772-10427-2, aircraft S/N 34700, Modification Revision MDL, dated July 27, 2011. The modification includes structural changes to support the addition of external antennas and radars, in-flight refueling system, ventral fins for increased stability control, reduced speed envelope, an increase in electrical generation capability from 180 to 360 KVA, a new interior to provide crew operation of the radar systems, avionics in the main deck to support the radar operation, and a crew rest area, an increased in engine thrust, and modification to the flight deck avionics to reflect the new configuration.airplane to an Airborne Early Warning & Control (AEW&C) aircraft configuration

Installation of a Stage 3 hushkit when powered by P&W JT8D-7, JT8D-9, JT8D-15, or JT8D-17 Series Engines.

Installation of thrust reverser short track.