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5-7.
SCHEDULED INSPECTIONS
WARNING
FAILURE TO CORRECT CONDITIONS
S U C H A S , B U T N O T L I M I T E D T O ,
CORROSION, EROSION, MECHANICAL
DAMAGE, OR OBVIOUS WEAR FOUND
DURING A SCHEDULED INSPECTION
C O U L D S E R I O U S L Y A F F E C T T H E
AIRWORTHINESS OF THE HELICOPTER.
Scheduled inspections include the airframe and the
component inspections. The scheduled airframe
inspection intervals are related to the airframe
operating time. The component inspection intervals
are related to the component operating time.
5-8.
AIRFRAME INSPECTION PROGRAM
Bell Helicopter Textron has developed airframe
inspection programs to provide you with the flexibility
to permit maximum helicopter use. Depending on the
configuration of the helicopter, a 100 or 300-hour
airframe progressive inspection as well as a 100 or
300-hour airframe periodic inspection is available. You
may choose one of these Bell Helicopter inspection
programs or you can design your own program. You
are responsible for the selection of an inspection
program and for its approval by the governing civil
aviation authority.
5-9.
AIRFRAME PROGRESSIVE INSPECTION
PROGRAMS
If you choose one of the airframe progressive
inspection programs, you must first get approval from
your local airworthiness authority. The progressive
inspections are divided into separate events of similar
workload
(Table
5-1,
Table
All conditions of
Table 5-3
utilize the 300-hour airframe progressive
inspection.
Depending on the helicopter configuration, you have
the option to either use the 100-hour airframe
ECCN EAR99
SCHEDULED INSPECTIONS
5-2, and
Figure
5-1).
NOTE
must be met to
progressive inspection program or the 300-hour
airframe
progressive
determine helicopter eligibility to utilize the 300-hour
airframe progressive inspection program, refer to
Table
5-3.
5-10.
100-HOUR
AIRFRAME
INSPECTION PROGRAM
The
100-hour
airframe
program has 4 events. Events occur at intervals of
25 hours. After you complete event No. 4, the cycle
begins again with event No. 1
a minimum of one complete cycle (all four events)
within 12 calendar months. If you do not complete all
four events in a 12 calendar month period, the
remaining events must be completed prior to operating
the helicopter.
Table 5-1. 100-Hour Airframe Progressive
Inspection Events
AIRFRAME
EVENT
HOURS
NUMBER
25
50
75
100
In addition to performing the 100-hour airframe
progressive inspection program, you also need to
perform
and
record
inspections:
Every 300 hours of operation, helicopters
completing
the
progressive inspection program also need
to accomplish the 300-hour inspection.
•
300-hour inspection
•
1200-hour inspection
•
As required by manufacturer
25 FEB 2011 Rev. 13
BHT-206L4-MM-1
inspection
program.
PROGRESSIVE
progressive
inspection
(Table
5-1). You must do
MAINTENANCE
ZONES
1
1, 2, and 3
2
4 and 5
3
6
4
7, 8, 9, and 10
the
following
scheduled
NOTE
100-hour
airframe
5-00-00
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