- B/26 Introduction of Marconi Doppler Navigation System
- B/33 Installation of 618T-2 HF Radio Equipment
- B/37 Installation of AN/ARN501(V) TACAN
- B/111 Retrofit of AN/AQS-13 Sonar
- B/132 Installation of Gyroscopic Heading and Attitude Reference System (GHARS)
- B/138 Installation of Clock Type A-13A-2 as an Alternate to A-13A
- B/150 Installation of AN/ASN-501
- B/185 Utility Rescue Conversion
- B/187 Installation of DCU41/A Armament Control Panel
- CD-319 AN/AQS-13 Sonar Improvements
- CD-363 Installation of On-top Position Indicator
- CD-378 Incorporation of APX-77A Radar Identification System in CH124A Aircraft
- CD-382 Secure Voice Equipment Installation
- CD-414 Design Improvements to TACCO Table
- CD-426 Installation of APN-171(V)
- CD-427 Installation of AN/ARC511(V) and AN/ARC513(C) Fixed Fittings
- CD-428 Installation of AN/ARR-52A Sonobuoy Receiving Set
- CD-431 Relocation of KY-28 Secure Voice Equipment
- CD-439 Advanced Developmental Special Avionics Installation
- CD-440 Advanced Developmental MAD Installation
- CD-444 Installation of AN/APN513 Doppler
- CD-455 Installation of AN/ARC 164(V) UHF Radio Communication System
- CD-456 Installation of the KY58/KY75 Secure Voice Systems
- CD-460 Helicopter Towed Array Support (HELTAS) System Installation
- CD-463 Installation of the AN/ARN-127 VOR/ILS/Marker Beacon Navigation System
- CD-466 Forward Looking Infrared (FLIR) System Mission-fit Installation
- CD-467 Relocation of Avionics Equipment to Improve Centre OF Gravity
- CD-471 AN/ASN123C Tactical Navigation System Installation (CH124A)
- CD-476 CH124B Conversion Program Removal of the ARR-75 Sonobuoy Receiver System
- CD-478 CH124B Conversion Program Removal of the UYS-503 Sonobuoy Processor System
- CD-479 CH124B Conversion Program Removal of the 2ARC-164(V) UHF Sonobuoy Command System
- CD-480 CH124B Conversion Program Removal of the TD5062/AS Time Code Generator System
- CD-481 CH124B Conversion Program Removal of the M14E Tape Recorder System
- CD-482 CH124B Conversion Program Removal of the ASQ-504(V) Magnetic Anomaly Detector Capsule System
- CD-483 CH124B Conversion Program Installation of the “A” Model FLIR Display in the Side-facing Console
- CD-486 CH124B Conversion Program Removal of the Internal Sonobuoy Dispenser System
- CD-498 CH124B Conversion Program Removal of the VHF-FM ARC 513 System
