New OMD (Oil Mist Detection) Airline Tubes Are Used on Certain 3612, 3616, C280-12, and C280-16 Engines {1071}
- Engine:
- 3612 (S/N: 9RC1-UP)
- Engine:
- C280-12 (S/N: TSJ1-UP; RDW1-UP)
- 3616 (S/N: 1PD1-UP)
- C280-16 (S/N: NKB1-UP; A4F1-UP; TDX1-UP)
Description of Change: New and improved tubes are used on certain 3612, 3616, C280-12, and C280-16 Engines. The new tubes have been redesigned to eliminate interference issues with the ECM mounting bracket on NKB Engines.
Adaptable To: The new 434-6554 Tube As, 434-6555 Tube As, and 435-9790 Tube As are a direct replacement for the existing tube assemblies. Refer to Table 1 for a list of the new and existing part numbers. The new tube assemblies are adaptable back to first production on the serial numbers listed above.
When installing the new tube assemblies use new clips and fasteners from the groups listed in Table 2.
Show/hide table
| New Part Number | Existing Part Number |
| 434-6555 Tube As | 200-4490 Tube As |
| 434-6554 Tube As | 200-4488 Tube As |
| 435-9790 Tube As | 196-4498 Tube As |
Show/hide table
| Engine | Part Number |
| C280-12/3612 LH Group | 372-5028 Air Lines Gp |
| C280-12/3612 RH Group | 394-9776 Air Lines Gp |
| C280-16/3616 LH Group | 372-5028 Air Lines Gp |
| C280-16/3616 RH Group | 371-7605 Air Lines Gp |
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