Piper PA-28-161, Maintenance Manual

Page: 48 / 1104

PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 2
Nov 30/06
1C20
5-20-00
D. Tests - Operation of aircraft components, appliances or systems to evaluate functional performance.
(1) Operational Test - A task to determine that an item, is fulfilling its intended purpose.The task
does not require quantitative tolerances. This is a fault finding task.
(2) Functional Test - A quantitative check to determine, if one or more functions of an item
performs within specified limits. This test may require the use of supplemental bench test
equipment.
(3) In addition, each of the above tests must be performed by an FAA Certified Repair Station with
appropriate ratings or by a Certified Mechanic who is qualified on this aircraft. The recording of
the above function must be made in the permanent aircraft records by the authorized individual
performing the test.
E. Bench Test - Means removal of component from the aircraft to inspect for cleanliness, impending
failure, need for lubrication, repair or replacement of parts and calibration to at least the
manufacturers specifications using the manufacturers recommended test equipment or standards
or the equivalent.
Each bench test will be performed by a Piper Service Center, FAA Certified Repair Station with
appropriate rating or by a certified mechanic. This test will be performed at the scheduled interval
regardless of any bench test performed on a particular component while being repaired/overhauled
before scheduled interval bench test. After the component is installed into the aircraft, an
operational test of the component and its related system should be performed to ensure proper
function. Serviceable parts that were issued to the component will be filed in the aircraft permanent
records. The person performing the test must make appropriate entries in the aircraft’s permanent
maintenance record.
F. Maintenance - The word maintenance as defined by FAR Part 1, means “inspection, overhaul,
repair, preservation and the replacement of parts, but excludes preventive maintenance.”
G. On Condition Maintenance - A primary maintenance process having repetitive inspections or tests
to determine the condition of units, systems, or portions of structure with regard to continued
serviceability (corrective action is taken when required by item condition.)
H. Time - as used in this manual.
(1) Time-in-service for aircraft components, unless otherwise specified, is a cumulative total of
flight hours or calendar time calculated from the time a new or overhauled component was first
installed in any aircraft, and including:
(a) the aircraft time that elapses from the initial installation to the first removal, if any; and,
(b) the aircraft time that elapses from each subsequent installation to each subsequent
removal, if any; or,
(c) the calendar time elapsed since the installation.
NOTE: Dates stamped on individual components at the time of manufacture are typically
applied to determine shelf life - i.e. the maximum time allowed from manufacture/
assembly/cure until actually installed in an aircraft and are not relevant.
Do not, however; ignore markings applied to life-limited parts when removed with time
and/or cycles remaining on them.
(2) Aircraft time, flight hours, or aircraft hours are the “Hobbs Time” shown on, or calculated from,
the installed “Hour Meter.”