Aerospace Filtration Systems RFM Supplement For
17891 Chesterfield Airport Road Agusta A119 & AW119MKII
Chesterfield, MO 63005 Rotorcraft
AFS-AA119EASA-IBF-FMS Page 9 of 35
EASA Approval Date: Rev.: IR
SECTION 4
PERFORMANCE
IBF PERFORMANCE DATA
The applicable RFM (A119 or AW119 MKII),
should be used to perform the PAC (Power
Assurance Check).
A119 Rotorcraft Only
For A119 rotorcraft, use of the Basic PAC
charts/procedures found in Section 4 of the
RFM and the EAPS – OFF performance
charts, found in Appendix 17 of the RFM are
required.
If the PAC is satisfactory (i.e. the recorded ITT
or N1 values are less than the maximum
allowable values) then EAPS performance can
be obtained and the EAPS–OFF performance
data charts are applicable.
If the PAC is not satisfactory then clean the
filters and conduct another PAC. If the new
PAC is found to be satisfactory, then EAPS
performance can be obtained and the EAPS–
OFF performance data charts are applicable.
If the recorded PAC results after cleaning the
filters are still not satisfactory (i.e. the recorded
ITT or N1 values are greater than the
maximum allowable EAPS chart values), then
contact maintenance for troubleshooting.
All Rotorcraft (A119 and AW119 MkII)
HELICOPTER PERFORMANCE IS
REDUCED AS THE IBF BECOMES
CONTAMINATED WITH DIRT, DUST
AND DEBRIS. PILOT / OPERATOR IS
RESPONSIBLE TO UTILIZE PAC TO
DETERMINE IF ENGINE CAN
PRODUCE INSTALLED POWER.
NOTE
Ensure that the IBF “FILTER” and
“BYPASS” caution lights are not
illuminated during performance of the
PAC, and verify that the bypass door is
closed.
The frequency at which the PACs are
conducted is up to the discretion of the
operator and may be based on the current or
forecast operating environment, (i.e.
temperature, altitude, airborne contaminate)
and the requirements of the Flight Manual or
applicable Flight Manual Supplement.
If the engine does not pass PAC, published
performance may not be achieved. Contact
maintenance for appropriate trouble shooting
procedures as outlined in the applicable
Instructions for Continued Airworthiness or
Maintenance Manuals.
AW119 MkII Rotorcraft Only
For AW119 MkII rotorcraft, use of the Basic
PAC charts/procedures, found in Section 4 of
the RFM and the following performance charts
of this RFM Supplement are required.
If the PAC is satisfactory (i.e. the recorded ITT
or N1 values are less than the maximum
allowable values) then EAPS performance can
be obtained and the following performance
data charts are applicable.
If the PAC is not satisfactory then clean the
filters and conduct another PAC. If the new
PAC is found to be satisfactory, then EAPS
performance can be obtained and the following
performance data charts are applicable.
If the recorded PAC results after cleaning the
filters are still not satisfactory (i.e. the recorded
ITT or N1 values are greater than the
maximum allowable EAPS chart values), then
contact maintenance for troubleshooting.
.
A
TI
N
