Cessna 150M - Inspection Requirements; Inspection Charts; Inspection Program Selection

I INSPECTION REQUIREMENTS.
As required by Federal Aviation Regulations, all civil aircraft of U. S. registry must undergo a
complete inspection (annual) each twelve calendar months. In addition to the required
ANNUAL inspection, aircraft operated commercially (for hire) must also have a complete
aircraft inspection every 100 hours of operation.
In lieu of the above requirements, an aircraft may be inspected in accordance with a
progressive inspection schedule; which allows the work load to be divided into smaller
operations that can be accomplished in shorter time periods.
Therefore, the Cessna Aircraft Company recommends PROGRESSIVE CARE for aircraft that
are being flown 200 hours or more per year, and the 100 HOUR inspection for all other aircraft.
IT INSPECTION CHARTS.
The following charts show the recommended intervals at which items are to be inspected.
As shown in the charts, there are items to be checked each 50 hours, each 100 hours, each
200 hours, and also Special Inspection items which require servicing or inspection at
intervals other than 50, 100 or 200 hours.
a. When conducting an inspection at 50 hours, all items marked under EACH 50 HOURS would be
inspected, serviced or otherwise accomplished as necessary to insure continuous
airworthiness.
b. At each 100 hours, the 50 hour items would be accomplished in addition to the items
marked under EACH 100 HOURS as necessary to insure continuous airworthiness.
c. An inspection conducted at 200 hour intervals would likewise include the 50 hour
items and 100 hour items in addition to those at EACH 200 HOURS.
d. The numbers appearing in the SPECIAL INSPECTION ITEMS column refer to data listed
at the end of the inspection charts. These items should be checked at each inspection
interval to insure that applicable servicing and inspection requirements are accomplished
at the specified intervals.
e. A complete aircraft inspection includes all 50, 100 and 200 hour items plus those
Special Inspection Item6 which are due at the time of the inspection.
III INSPECTION PROGRAM SELECTION.
AS A GUIDE FOR SELECTING THE INSPECTION PROGRAM THAT BEST
SUITS THE OPERATION OF THE AIRCRAFT, THE FOLLOWING IS
PROVIDED.
1. IF THE AIRCRAFT IS FLOWN LESS THAN 200 HOURS ANNUALLY.
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o. IF FLOWN FOR HIRE
An aircraft operating in this category must have a complete aircraft inspection
each 100 hours and each 12 calendar months of operation. A complete aircraft
inspection consists of all 50, 100, 200 and Special Inspection Items shown in
the inspection charts as defined in paragraph II above.
b. IF NOT FLOWN FOR HIRE
An aircraft operating in this category must have a complete aircraft inspection each
12 calendar months (ANNUAL). A complete aircraft inspection consists of all
50, 100, 200 and Special Inspection Items shown in the inspection charts as defined
in paragraph II above. In addition, it is recommended that between annual inspections,
all items be inspected at the intervals specified in the inspection charts.