Textron Bell 412, Руководство по обслуживанию

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FAA APPROVED BHT-412-MM-2
4-00-00
25 SEP 2018 Rev. 27 Page 13 Export Classification C, ECCN EAR99
Table 4-1. Airworthiness Limitations Schedule (Cont)
NOTES :
The airworthiness life or inspection interval for any part number contained in this schedule applies to all
the successive dash numbers for that component unless it is otherwise specified.
In-service life begins the day the component is entered into service. In-service life only remains in effect
while the component is installed on the helicopter.
Fail safe, refer to Chapter 5 for detailed 100-hour inspection.
On-condition subject to daily or 25-hour visual inspection interval (as applicable) per scheduled
inspections (Chapter 5).
The bushing 412-010-222 is installed on the main rotor yoke assemblies 412-010-101-127/-129/-133
-135/-137/-139. The bushing is assigned an unlimited airworthiness life. If removed, it is not reusable.
An on-condition retirement is assigned to spider 204-040-785-003 subject to passing a magnetic particle
inspection every 3100 hours per ASB 412-91-52A.
An additional 4 hours must be logged for each hoist operation performed within penalty CG region
(
Figure 4-1 ). Refer to Chapter 5 and BHT-412-FM.
RIN (Retirement Index Number) is the retirement life based on fatigue damage from normal helicopter lifts
and takeoffs. New components will begin with an accumulated RIN of zero that will be increased as lifts
and takeoffs are performed. Operators must record the number of lifts and takeoffs and increase the
accumulated RIN accordingly. When the maximum RIN or retirement flight hours is/are reached,
whichever occurs first, the component will be removed from service. Refer to Information Letter
GEN-94-54/Information Letter GEN-03-94.
Retire when the part has 10,000 flight hours or when the accumulated RIN = 80,000, whichever
occurs first. For manual tracking, increase the RIN count by 1 for each takeoff/lift recorded. If logging,
increase RIN count by 2 for each lift recorded.
Retire when the part has 10,000 flight hours or when the accumulated RIN = 60,000, whichever
occurs first. For manual tracking, increase the RIN count by 1 for each takeoff/lift recorded. If logging,
increase RIN count by 2 for each lift recorded.
This splined plate assembly can be used on all 412 models. When used on 412 HP/EP, it will be
vibroetched “412 HP" and will be retired when part has 10,000 flight hours or when the accumulated
RIN = 60,000, whichever occurs first. For manual tracking, increase the RIN count by 1 for each
takeoff/lift recorded. If logging, increase RIN count by 2 for each lift recorded (see Note 12).
This splined plate assembly can be used on all 412 models. When used on 412/412SP, it will not be
vibroetched "412 HP". Retire when part has 10,000 flight hours or when the accumulated RIN = 80,000,
whichever occurs first. For manual tracking, increase the RIN count by 1 for each takeoff/lift recorded. If
logging, increase RIN count by 2 for each lift recorded (see Note 11).
Deleted.
Retire when the part has 5000 flight hours or when the accumulated RIN = 60,000, whichever occurs first.
For manual tracking, increase the RIN count by 1 for each takeoff/lift recorded. If logging, increase RIN
count by 2 for each lift recorded.
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