| 28F19987 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| 30-781-1012-59 | K5294 | GE AVIATION SYSTEMS LIMITED |
| AGS3099 | 0U583 | SAE INTERNATIONAL |
| AGS3099 | U14C6 | SAE ITC ENGINE & AIRFRAME TECHNICALSTANDARDS |
| AGS3099 | U1653 | SOCIETY OF BRITISH AEROSPACE COMPANI LTD SBAC |
| AGS3099 | U5897 | ADVANCED LOGISTICS FOR AEROSPACE (UK) LIMITED |
| DEFSTAN47-17 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |