Bell 206L4 Maintenance Manual page 32

BHT-206L4-MM-1
NOTES (CONT):
Landing gear aft crosstube 206-053-211-103 has an airworthiness life of 33,000 landings. Refer to
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ASB 206L-94-97, dated 17 August 1994.
Reservoir per DOT-3HT specification and Exemption Letter DOT-E-7218. Life starts from date of
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manufacture.
Affected horizontal stabilizer 206-023-119-167 must be removed from service no later than
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30 September 2008. Refer to ASB 206L-06-141 for list of horizontal stabilizer serial numbers affected.
Applicable horizontal stabilizers must be inspected every 600 hours or annually until replaced. Refer to
ASB 206L-06-141 for inspection details.
Tail rotor blades 206-016-201-127 and subsequent, retirement life increased to 2500 hours. Refer to
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TB 206L-89-147, dated 2 June 1989.
Main rotor blades 206-015-001-ALL (all dash numbers). It is permissible to use any main rotor blade
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(mix and match) on 206L, 206L1, 206L3, 206L4, provided that all conditions are met. Refer to
TB 206L-87-142, dated 1 October 1987, and IL 206L-00-68 Rev. A or subsequent.
Tail rotor blades 206-016-201-ALL (all dash numbers). It is permissible to use any tail rotor blade on
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206L, 206L1, 206L3, 206L4 provided that all conditions are met. Refer to TB 206L-94-172, dated
19 December 1994.
Part of squib assembly 30908. Retire squib no later than 15 years after date of manufacturing. Dispose
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of time expired squib in accordance with local regulations.
Part of squib assembly 29022971 and approved alternate for squib 30908. Retire squib no later than
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15 years after date of manufacturing. Dispose of time expired squib in accordance with local
regulations.
Storage life of cutter assembly Y-1265-11-1, in original sealed container, is set at 60 months. Service life
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is 36 months from the time the cutter assembly is removed from the original sealed container. The
36-month service life must be contained within the 60-month storage life. Dispose of time expired squib
in accordance with local regulations.
Example 1 – Cutter assembly stored for 24 months: 60 - 24 = 36-month service life.
Example 2 – Cutter assembly stored for 48 months: 60 - 48 = 12-month service life.
Example 3 – Cutter assembly stored for 1 month: 60 - 1 = 59 months, reduced to 36 months maximum
service life.
The airworthiness life of 4000 hours is only applicable to main rotor blades not affected by
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ASB 206L-09-159 Rev. A, dated 13 November 2009, or subsequent. Refer to TCCA AD CF-2011-44
R1, dated 1 February 2012, or subsequent for life applicable to blades affected by ASB 206L-09-159.
Main rotor hub tension torsion straps 206-310-004 have an airworthiness life of 1200 hours or 48
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months, whichever occurs first. The calendar life of 48 months starts when new straps are installed in a
main rotor hub and blade assembly, and are subjected to rotation on the helicopter.
4-00-00
Page 10 Rev. 23 25 JUN 2019
Table 4-1. Airworthiness Limitations Schedule (Cont)
TC APPROVED
Export Classification C, ECCN EAR99