Technical data

Product Specification
HIF-2121/R5 CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO: 965-1176-601 REV: D SHEET 36
3.3 Reliability/Maintainability
3.3.1 Scheduled Maintenance
No scheduled maintenance is required for the EGPWC.
3.3.2 Reliability
A MKVI/MKVIII EGPWC Failure Modes, Effects and Criticality Analysis (FMECA) has been performed and is contained in
Honeywell document 070-4610-000. Included in FMECA are MKVI/MKVIII EGPWC assembly level reliability predictions.
Historical MK V EGPWC reliability data and the EGPWC reliability prediction results were used as baseline criteria in
establishing the following minimum EGPWC MTBF and MTBUR values.
MTBF for confirmed failures will be 12,500 operating hours or better, for the latest MK VI or MK VIII EGPWS
configuration without GPS three years from initial production delivery. MTBF for confirmed failures will be 11,000 operating
hours or better, for the latest MK VI or MK VIII EGPWS configuration with GPS three years from initial production
delivery.
MTBUR will be 9,000 operating hours or better, for the latest MK VI or MK VIII EGPWS configuration without GPS three
years from initial production delivery. MTBUR will be 8,000 operating hours or better, for the latest MK VI or MK VIII
EGPWS configuration with GPS three years from initial production delivery.
The MKVI and MKVIII EGPWS MTBUR goals presume proper line troubleshooting procedures are followed when
diagnosing system failures.
The MKV EGPWC FMECA is contained in Honeywell document 070-4507.
The MKVI/MKVIII EGPWC FMECA is contained in Honeywell document 070-4610-000
The MKV EGPWC reliability prediction is contained in Honeywell document 070-4521.
The MKVI/MKVIII EGPWC reliability prediction is contained in the MKVI/MKVIII EGPWC FMECA.
3.4 Performance
The EGPWC operational performance will meet as a minimum the requirements of TSO-C92c, TSO-C151a and CAA
Specification 14. The actual performance is defined in the EGPWC Systems Requirement Document (SRD).
3.5 Power
3.5.1 EGPWC Power Requirements
The maximum input power to the MKVI/MKVIII EGPWC is 28 watts under all operating conditions except when heater
blanket is on (including audio output). Refer to Appendix C for power pin designations.
End Item Part Number 965-1176-xxx
965-1186-xxx with internal GPS
965-1206-xxx
965-1216-xxx with internal GPS
EGPWC Input Power Type 28 VDC
EGPWC Inrush Current @18V DC 3 Amps for 197ms
@28V DC 3 Amps for 307ms
EGPWC Input Power Requirement
With No Warning: 9 Watts
With Warning (over 8 Ω speaker):
16 Watts
With GPS Card Option
1
: Add3Watts
With Heater Blanket On
2
: Add 49 Watts (typical)
Recommended EGPWC Power
Control Device
3 Amp Delayed Action
Circuit Breaker
1
Based on the Honeywell GPS Xpress card specification
2
The heater blanket turns on at temperatures ≤ -23
0
C and turns off at temperatures ≥ -20
0
C