New Software is Used {1902, 7620}
- Engine:
- 3508B (S/N: CBB1-UP; 5PS1-UP; BPX1-UP)
- 3512B (S/N: BRC1-UP; 3ZW1-UP)
- 3516B (S/N: CAN1-UP; 6HZ1-UP)
Description of Change: New software files for certain 3500B Engines with ADEM III Electronic Control Modules (ECM) are now used. The software improves the altitude derate as the altitude increases.
Note: Installation of the new 3500B Engine software is not a warranty repair.
Adaptable To: The new software is listed in Table 1. Manufacturing effectivity is listed in Table 2.
Show/hide table
| Old Software | New Software | RPM | Model |
| 254-5605 and 284-7032 | 287-7776 | 1200 | 3508B |
| 278-8319 | 284-9102 | 1350 | 3508B |
| 254-5574 | 284-9099 | 1500 | 3508B |
| 283-7536 | 305-5523 | 1800 | 3508B |
| 254-5577 | 284-9101 | 1800 | 3508B |
| 277-9444 and 278-8327 | 284-9109 | 1500 | 3512B |
| 278-8320 | 284-9110 | 1750 | 3512B |
| 277-9445 | 284-9111 | 1800 | 3512B |
| 254-5610 | 284-9096 | 1800 | 3512B |
| 254-5583 | 284-9108 | 1800 | 3512B |
| 254-5578 | 284-9104 | 1845 | 3512B |
| 277-9447 | 293-6485 | 1800 | 3516B |
| 254-5611 | 284-9097 | 1800 | 3516B |
Show/hide table
| Manufacturing Effectivity |
| S/N:5PS344-UP |
| S/N:BPX115-UP |
| S/N:CBB430-UP |
| S/N:3ZW672-UP |
| S/N:BRC164-UP |
| S/N:6HZ102-UP |
| S/N:CAN121-UP |
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