Centrisep® Engine Advanced Protection System (EAPS) for Boeing CH-47 Chinook Helicopter
Fit and Forget Engine Protection
The Boeing CH-47 Chinook is the workhorse for the U.S. Army's military transport operations. The multi-mission capability of this heavy-lift helicopter means it can be used for a wide variety of roles ranging from troop transport to disaster relief and medical evacuation. However, these demanding missions also mean frequent landings on unprepared grounds away from the main base.Pall’s “fit and forget” Centrisep® Engine Advanced Protection System (EAPS) is an ideal solution for such challenging conditions.
The system shields engine inlets from airborne contamination which results in:
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![]() Photo Courtesy of the U.S. Army. |
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Part Numbers:
- QB0459-03/QB0460-03 (port and starboard)
- AEA24917AK1T1 (port and starboard)
- CE01167BK1T1 (port and starboard)
1 AEA and CE part numbers are designated for the US Army.
Scavenge System:
- Fan
Certifications:
- Service Bulletin SB459-60-2 Issue 3
Maintenance
There are no inlet barrier filters to replace or clean; Centrisep EAPS is a “fit and forget” system. As with all aircraft equipment, routine visual inspection is recommended.For additional information about this product, please contact your local Pall representative.
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The Pall Centrisep EAPS solution is also an environmentally friendly alternative to oil-wetted barrier filters. There is no filter replacement and no daily cleaning as with oil-based solutions, which are difficult and expensive to dispose of. |
The CH47 helicopter is fitted with Pall's Centrisep EAPS, a “fit and forget” solution that extends the erosion life of the engine.


Photo Courtesy of the U.S. Army.
| Agusta Westland |
Bell |
Boeing |
Eurocopter |
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HAL
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Mil |
NHI |
Sikorsky |
Europe, Africa, Middle East, Asia
| Date | Part Number | Description |
| 1985/86 | QB0289/290 | First equipment developed at the request of the Egyptian Air Force |
| 1990 | QB0459/460 | Fitted to the first UK Royal Air Force Chinook helicopters |
| 1991 | QB0459/460 | During the Gulf War, CH47 Centrisep EAPS proved their value in hostile conditions |
| 1995 | QB0459-01/460-01 | Following lessons learned from the Gulf War, CH47 Centrisep EAPS is redesigned for a shorter can to allow cowl opening |
| 1997/98 | QB0459-01/460-01 | Cold weather tests are carried out on behalf of the RAF/UK MoD. Results show Centrisep EAPS enhanced operational capabilities in ice and snow |
| 2000 | QB0695-01/696-01 | Part number certified by Boeing for non-US operators. Note: Part N°s QB0459/60-01 and QB0695/6-01 are identical in all respects |
| 2006 | QB0459-03/460-03 | External screens covering the entire tube surface are introduced, except for the panel facing the fuselage. This improves FOD protection |
North and South America, Canada
| Date | Part Number | Description |
| 2002 | ADA2497D1000A | Original equipment |
| CE01167BLK1T CE01167BRK1T |
Centrisep modules (Port & Starboard) when ordered by OEM directly | |
| 2005 | AEA24917BKIT AEA24917AK1T |
Centrisep kit including Port & Starboard EAPS modules (AEA24914Y3/AEA24913Y3 ) Mechanical installation kit |





