T900
Quote:
"Two hours of dumping and ECAM handling appears to me as way too long for such a failure. Airbus and the companies sops might have to be rewritten for the big busses and big failures."
Totally agree, but did the drivers actually see the damage well through the windows from pax cabin and were they told about the wing hole getting bigger later on?
The perception of the incident from the cockpit could have been totally different.
I would still prefer not to ignore the known issues with this engine:
"Airbus A380 with RR Trent 900 engine. Did QANTAS ignore this directive and nearly have a disaster?
EASA AIRWORTHINESS DIRECTIVE
AD No.: 2010-0008R1
Date: 04 August 2010
Note: This Airworthiness Directive (AD) is issued by EASA, acting in accordance with
Regulation (EC) No 216/2008 on behalf of the European Community, its Member States
and of the European third countries that participate in the activities of EASA under Article
66 of that Regulation.
This AD is issued in accordance with EC 1702/2003, Part 21A.3B. In accordance with EC 2042/2003 Annex I, Part M.A.301, the
continuing airworthiness of an aircraft shall be ensured by accomplishing any applicable ADs. Consequently, no person may
operate an aircraft to which an AD applies, except in accordance with the requirements of that AD, unless otherwise specified by
the Agency [EC 2042/2003 Annex I, Part M.A.303] or agreed with the Authority of the State of Registry [EC 216/2008, Article
14(4) exemption].
Type Approval Holder’s Name :
ROLLS-ROYCE PLC
Type/Model designation(s) :
RB211 Trent 900 series engines
TCDS Number : EASA.E.012
Foreign AD : Not applicable
Revision : This AD revises EASA AD 2010-0008 dated 15 January 2010
ATA 72 Engine – Intermediate Pressure Shaft Coupling Splines –
Inspection
Manufacturer(s): Rolls-Royce plc
Applicability: RB211 Trent 900 series engines, all marks, all serial numbers.
These engines are known to be installed on, but not limited to, Airbus
A380 series aircraft.
Reason: Wear, beyond Engine Manual limits, has been identified on the abutment
faces of the splines on the Trent 900 Intermediate Pressure (IP) shaft rigid
coupling on several engines during strip. The shaft to coupling spline
interface provides the means of controlling the turbine axial setting and
wear through of the splines would permit the IP turbine to move
rearwards.
Rearward movement of the IP turbine would enable contact with static
turbine components and would result in loss of engine performance with
potential for in-flight shut down, oil migration and oil fire below the LP
turbine discs prior to sufficient indication resulting in loss of LP turbine disc
integrity. Some of these conditions present a potential unsafe condition to
the aeroplane.
This AD requires inspection of the IP shaft coupling splines and,
depending on the results, requires further repetitive inspections or
corrective actions."