AD Number: AD/BAe 146/114 Center
Fuselage Skin 6/2005 DM
Applicability: Model AVRO 146-RJ Series aircraft. Requirement: 1. Establish from the
aircraft’s technical records whether the aircraft has
previously been inspected in accordance with British Aerospace
(Operations) Ltd Avro 146-RJ Maintenance Review Board Report (MRBR)
Issue 10 Task SSI 53-20-138 (Maintenance Planning Document Task
References 532038DVI-DVI-10000-1 and 532038-DVI-10000-2).
2. If the inspection has not been previously accomplished,
perform a detailed visual inspection of the external fuselage skin
adjacent to the longeron at rib 0 from frame 29 to frame 31 in
accordance with BAE Systems (Operations) Service Bulletin ISB
53-177, or later EASA approved revision.
3. Following accomplishment of the initial inspection in
accordance with MRBR Task SSI 53-20-138 or Requirement 2 of this
Directive, perform all repeat inspections.
Background: The manufacturer has determined
that in order to assure the continued structural integrity of the
fuselage skin adjacent to the rib 0 longeron between frames 29 to
31 of the AVRO 146-RJ aircraft, a revised inspection program for
this area is considered necessary. Cracking, if undetected, could
lead to catastrophic structural failure.