January-February 2022 - 14
HEL ICOPTER HEALTH
" Another benefit is increased aircraft availability.
Better maintenance planning means less unplanned
downtime, faster turnaround and increased mission
readiness to support operations. "
Despite the benefits, HUMS systems are not standard
equipment for helicopters.
" Currently HUMS are considered non-standard
equipment, but major helicopter OEMs are moving
towards including HUMS as part of the offering, as
well as government aviation entities providing mandates
and regulations in design and usage of vehicle
health systems, " added Ravvin.
While large, heavy and military aircraft have traditionally
had HUMS installed at the factory, light and
medium commercial aircraft have not. Bechhoefer
said he estimates that roughly 80 percent of aircraft
flying have no HUMS capability onboard.
Bring it Onboard
For maintenance operations, a HUMS system has
tremendous potential, said Bechhoefer.
" By utilizing our Foresight MX technology, operators
can preclude machine-related safety issues,
improve availability and readiness of their vehicles
and aircraft, and reduce maintenance costs by catching
big/expensive issues early and speeding diagnosis.
Foresight MX provides information on what
is going on inside the engine, the gearbox, and vital
components, so operators can see and know what
is happening without unnecessary, invasive inspections, "
he continued.
In general, HUMS monitors, gathers and evaluates
Above: GPMS' Foresight MX user interface.
Below: A rendition of a 407 with HUMS sensor positions highlighted.
GPMS INTERNATIONAL, INC.
the following types of data:
* Usage monitoring-Collection of events and times
spent operating aircraft and subcomponents
* Exceedance monitoring-Detection of out-oflimits
operational characteristics or parameters
* Data and event recording-The storage of raw
and processed data, events and activities
* Balancing (rotor track and balance, shaft balance)-Smoothing
and optimizing of vibrations
* Mechanical diagnostics (airframe, gearbox, shaft
and bearings)-Analysis of rotating parts
* Data Integration-Consolidation of all available
aircraft data
In short, cracks, chips, missing gear teeth, misalignment,
out of balances, and similar findings can
be diagnosed, pin-pointed and indicated for immediate
repair.
" Collected data is balanced against a specific
aircraft database. Depending on specifics of system
set up, exceedance indicators alert pilots and
maintenance personnel of critical conditions that
14 JANUARY/FEBRUARY 2022
AIRCRAFT MAINTENANCE TECHNOLOGY
January-February 2022
Table of Contents for the Digital Edition of January-February 2022
PUBLISHER’S NOTE
Industry Inspection
Maintain Helicopter Health with HUMS
Rotorcraft Operators Face Disruptions, Groundings as 5G Rollout Continues
Ready, Set, Go
Heads Up on HUDs
A Clear View of Dimmable and Tinted Aircraft Windows
The AMC is Back and Better Than Ever!
FOR THE RECORD
ARSA INSIGHT
GAMA INSIGHT
Eddy Current Flaw Detection
Advertiser’s Index
January-February 2022 - 1
January-February 2022 - 2
January-February 2022 - 3
January-February 2022 - 4
January-February 2022 - PUBLISHER’S NOTE
January-February 2022 - Industry Inspection
January-February 2022 - 7
January-February 2022 - 8
January-February 2022 - 9
January-February 2022 - 10
January-February 2022 - 11
January-February 2022 - Maintain Helicopter Health with HUMS
January-February 2022 - 13
January-February 2022 - 14
January-February 2022 - 15
January-February 2022 - 16
January-February 2022 - 17
January-February 2022 - Rotorcraft Operators Face Disruptions, Groundings as 5G Rollout Continues
January-February 2022 - 19
January-February 2022 - Ready, Set, Go
January-February 2022 - 21
January-February 2022 - 22
January-February 2022 - 23
January-February 2022 - Heads Up on HUDs
January-February 2022 - 25
January-February 2022 - 26
January-February 2022 - 27
January-February 2022 - 28
January-February 2022 - 29
January-February 2022 - A Clear View of Dimmable and Tinted Aircraft Windows
January-February 2022 - 31
January-February 2022 - 32
January-February 2022 - The AMC is Back and Better Than Ever!
January-February 2022 - 34
January-February 2022 - 35
January-February 2022 - 36
January-February 2022 - FOR THE RECORD
January-February 2022 - ARSA INSIGHT
January-February 2022 - GAMA INSIGHT
January-February 2022 - Eddy Current Flaw Detection
January-February 2022 - 41
January-February 2022 - Advertiser’s Index
January-February 2022 - 43
January-February 2022 - 44
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