Thu, Dec 01, 2011
AD NUMBER: 2011-24-06
MANUFACTURER: BAE SYSTEMS (Operations) Limited
Model BAe 146-100A, -200A, and -300A airplanes; and Model Avro
146-RJ70A, 146-RJ85A, and 146-RJ100A airplanes.
SUBJECT: Airworthiness Directive
2011-24-06
ACTION: Final rule
SUMMARY: The FAA is superseding an existing
airworthiness directive (AD) that applies to all BAE SYSTEMS
(Operations) Limited Model BAe 146-100A, -200A, and -300A
airplanes; and Model Avro 146-RJ70A, 146-RJ85A, and 146-RJ100A
airplanes. This AD results from mandatory continuing airworthiness
information (MCAI) originated by an aviation authority of another
country to identify and correct an unsafe condition on an aviation
product.
The MCAI describes the unsafe condition as:
BAE Systems (Operations) Limited
amended Chapter 05-10-15 of the AMM [aircraft maintenance manual]
to introduce a new hydraulic filter assembly life limit and to
remove the tables containing the Mandatory Life Limitations
(Landings) on the Bolts and Pins as the information is now included
in the SSID [supplemental structural inspection document] which is
already mandated by the same AD.
In addition, BAE Systems amended
Chapter 05-10-15 of the AMM to enable the use of RJ85 MLG [main
landing gear] main fittings for lighter weight 146-200 aircraft
using the same safe life of 50,000 Flight Cycles (FC) and the use
of RJ100 MLG main fittings for lighter weight RJ85, 146-200 and
146-300 aircraft using the same safe life of 40,000 FC.
The unsafe condition is fatigue cracking of certain structural
elements which could adversely affect the structural integrity of
these airplanes.
DATES: This AD becomes effective January 3,
2012
FMI:
AD
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