Piper Comanche PA-24 Service Manual page 148

B. Checks - Can be performed by pilots and/or mechanics who are qualified on this aircraft and
consists of examinations in the form of comparisons with stated standards for the purpose of
verifying condition, accuracy and tolerances.
C. Approved Inspection - Means a continuing airworthiness inspection of an airplane and its various
component and systems at scheduled interval in accordance with procedures approved by the FAA
under FAR Part 91.409(d) or Part 135.419.
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.)
III - INSPECTION
PIPER COMANCHE SERVICE MANUAL
1D10
04/01/09