Issued: 25-JUN-2013 | To: Airbus A318, A319, A320, A321 | AD 2013-0132-E |
The Emergency AD requires identification of the affected aeroplanes to establish the configuration and, for those aeroplanes, repetitive inspections of the opening sequence of the MLG door actuator and, depending on findings, replacement of the MLG door actuator. |
Issued: 26-JUL-2013 | To: EASA | Recommendation ANSV-10/1052-13/5/A/13 |
In a case of jammed door, when the gravity extension is activated, there is no chance for the crew to restore a clean configuration of the aircraft. This, under specific adverse circumstances, may become critical by leading to excessive fuel consumption.
EASA is therefore recommended to consider the possibility to review the logic of the system in order to remove this potential scenario. |
Issued: 26-JUL-2013 | To: EASA | Recommendation ANSV-6/1052-13/1/A/13 |
Introduce a modification to the existing AOT A320-32A1390 and the related point of AD 2011-0069R1 , requiring, in addition to the threshold check of 30 seconds taken for the door to open to the point of actuator vertical, the actual measurement of the time taken to get the vertical position and add the task of reporting the trend. The part should then be removed for further investigation when a delay exceeding a specified time (to be established by the manufacturer; e.g.: 3 seconds) is observed with respect to the baseline of the curve.
This kind of action would provide an absolute evaluation of the intrinsic performance of each single actuator and it is then expected to be much more effective than the current analysis of CFDS that only provides relative measurements. |
Issued: 26-JUL-2013 | To: EASA | Recommendation ANSV-7/1052-13/2/A/13 |
In order to have a better and clear traceability of the maintenance performed on the single aircraft part, it would be desirable to require a worksheet for each single S/N and not generically referred to the MLG door actuator. EASA is therefore recommended to review the maintenance practices/requirements regarding the above mentioned matter. |
Issued: 26-JUL-2013 | To: EASA | Recommendation ANSV-8/1052-13/3/A/13 |
In order to avoid excessive workload in stressful condition like an emergency landing due to L/G not locked, it would be advisable to require that the content of the OEB 209/1 (and its following modifications) and associated point in EASA AD 2011-0069R1 to be included in the related abnormal and emergency checklists. |
Issued: 26-JUL-2013 | To: EASA | Recommendation ANSV-9/1052-13/4/A/13 |
In order to avoid any possible flightcrew misinterpretation about the effective meaning of the 2 minutes waiting time after recycling required to activate the L/G gravity extension, it would be advisable to review the activation procedure; in particular it is recommended to specify that the freefall mechanism must be activated after a minimum time of 2 minutes with the lever kept in the lower position, and no other shorter intermediate recycles are allowed. |
Issued: 06-DEC-2013 | To: Airbus A318, A319, A320, A321 | AD 2013-0288 |
This AD retains the requirements of EASA AD 2011-0069R1 and AD 2013-0132-E, which are superseded, but with reduced inspection intervals, and requires replacement or modification, as applicable, of the affected MLG door actuators as terminating action for the monitoring, repetitive checks and inspections. |