Patent ID: 11905041
Assignee: HAMILTON SUNDSTRAND CORPORATION
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC B  F  G  Y | IPC B  G

Claim 10:
11. A method of managing maintenance of an environmental control system of an aircraft, the method comprising the following steps, in order:
a. installing a first heat exchanger as part of the environmental control system;
b. recording, in an aircraft maintenance database, an orientation N identifying a position of the first heat exchanger;
c. tracking, with a cycle counter, a cycle count of the aircraft;
d. performing a maintenance check of the aircraft when the tracked cycle count reaches a threshold value;
e. removing the first heat exchanger from the aircraft;
f. determining, with an aircraft maintenance database, whether to rotate an orientation of the heat exchanger based on the tracked cycle count of the aircraft;
g. reversing an orientation of the first heat exchanger, wherein reversing the orientation of the first heat exchanger includes rotating the first heat exchanger 180° about a first centerline axis;
h. updating the aircraft maintenance database to indicate the reversed orientation of the first heat exchanger as orientation N+1; and
i. replacing the first heat exchanger into the aircraft.