Multiple power assurance check procedure for aircraft with an engine inlet barrier filter installed
First Claim
1. A method of conducting an engine power assurance check, comprising:
- performing a first engine power assurance check wherein the first engine power assurance check is judged as passing or failing based on power performance values calculated according to a first set of criteria related to an inlet barrier filter; and
in response to a fail result of the first engine power assurance check, performing a second engine power assurance check wherein the second power assurance check is judged as passing or failing based on power performance values calculated according to a second set of criteria related to the inlet barrier filter;
wherein each of the performing the first engine power assurance check and the performing the second power assurance check comprise operating an engine and wherein the second set of criteria is different relative to the first set of criteria; and
wherein the first set of criteria are based on engine performance charts calculated based on an assumption that the inlet barrier filter is installed and wherein the second set of criteria are based on engine performance charts calculated based on an assumption that the inlet barrier filter is not installed or is bypassed.
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Abstract
A method of conducting an engine power assurance check includes performing a first engine power assurance check wherein the first engine power assurance check is judged as passing or failing based on power performance values calculated assuming the presence of a substantially clogged or blocked inlet barrier filter and in response to a fail result of the first engine power assurance check, performing a second engine power assurance check wherein the second power assurance check is judged as passing or failing based on power performance values calculated assuming at least one of no inlet barrier filter being installed and an open bypass of an installed inlet barrier filter.
4 Citations
19 Claims
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1. A method of conducting an engine power assurance check, comprising:
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performing a first engine power assurance check wherein the first engine power assurance check is judged as passing or failing based on power performance values calculated according to a first set of criteria related to an inlet barrier filter; and in response to a fail result of the first engine power assurance check, performing a second engine power assurance check wherein the second power assurance check is judged as passing or failing based on power performance values calculated according to a second set of criteria related to the inlet barrier filter; wherein each of the performing the first engine power assurance check and the performing the second power assurance check comprise operating an engine and wherein the second set of criteria is different relative to the first set of criteria; and wherein the first set of criteria are based on engine performance charts calculated based on an assumption that the inlet barrier filter is installed and wherein the second set of criteria are based on engine performance charts calculated based on an assumption that the inlet barrier filter is not installed or is bypassed. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of conducting an engine power assurance check, comprising:
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selecting, via a touchscreen interface, one of a first engine power assurance check according to a first set of criteria related to an inlet barrier filter and a second engine power assurance check according to a second set of criteria related to the inlet barrier filter; and conducting the selected one of the first engine power assurance check and the second engine power assurance check, wherein the conducting the selected one of the first engine power assurance check and the second engine power assurance check comprises operating an engine, wherein the second set of criteria is different relative to the first set of criteria, and wherein the second engine power assurance check is conducted in response to a fail result of the first engine power assurance check, wherein the first set of criteria are based on engine performance charts calculated based on an assumption that the inlet barrier filter is installed, and wherein the second set of criteria are based on engine performance charts calculated based on an assumption that the inlet barrier filter is not installed or is bypassed. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An aircraft, comprising:
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an inlet barrier filter; and an integrated avionics control system configured to selectively conduct (1) a first engine power assurance check with a bypass of the inlet barrier filter closed and according to a first set of criteria related to the inlet barrier filter and (2) a second engine power assurance check with the bypass of the inlet barrier filter open and according to a second set of criteria related to the inlet barrier filter, wherein the second set of criteria is different relative to the first set of criteria and wherein the second power assurance check is conducted in response to a fail result of the first power assurance check, wherein the first set of criteria are based on engine performance charts calculated based on an assumption that the inlet barrier filter is installed, and wherein the second set of criteria are based on engine performance charts calculated based on an assumption that the inlet barrier filter is not installed or is bypassed. - View Dependent Claims (16, 17, 18, 19)
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Specification