Avionics News May 2017 - 63
A nearly original 1972 Huey instrument panel
pacwesthelicopters.com * Redding, California
Number of employees: 12
involved with the project:
Roger Umstead (technician)
Aaron Umstead (structural)
Aircraft type: Bell UH-1H Huey
What was the objective
of the project?
To increase mission capability
while improving operational
safety and reliability.
What date was the
What date was the
some scheduling conflicts due to
the scope of work being performed
on the aircraft.
What makes this
The scope of the work performed
included new avionics, engine
instrumentation, rescue hoist,
and fire attack/suppression
systems. These upgrades and
modifications were carried out
concurrently with major airframe
dynamic component repairs, and
complete airframe stripping and
How did you resolve
We worked to maintain an open
dialogue with the customer and
equipment manufacturers to
ensure the final product worked
as advertised and met customer
expectations. We coordinated
technician access to aircraft to
minimize conflicts where possible.
Did you encounter any
problems while working
on the project?
We experienced a few minor
system integration issues and
Did you learn anything
from this project?
When dealing with a 40-plus-yearold aircraft and associated original
wiring, there is not much that is
acceptable to remain in service.
In spite of the aircraft being 85
percent rewired during this project,
it would have been more efficient
to have completed a 100 percent
rewire of the aircraft.
What was the
The customer was impressed with
the attention to detail and effort
that led to a finished product that
met their expectations.
Preplanning and requisition of
equipment and parts prior to aircraft
arrival is critical to the success of a
project of this scope. q
The finished product shows completely upgraded avionics, instruments and mission
equipment to meet evolving operational requirements.