- the applicable proximity sensor and the related LGCIU, (Ref. ASM 27-51/06) or (Ref. ASM 27-51/07)
- the applicable LGCIU and the related SFCC, (Ref. ASM 27-51/06) or (Ref. ASM 27-51/07).
(a) Do the test given in Para.(2).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞27-51-00∞∞∞∞∞∞∞∞∞∞Page 244
May 01/04R
CES Flap Alignment Fault
1. Possible Causes
_______________
- flap drive assembly
- flap-actuator
- interconnecting strut
- flap transmission assembly
- backlash
2. Job Set-up Information
______________________
A. Referenced Information
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REFERENCE DESIGNATION
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AMM 27-51-00-820-005 Adjustment of the Flap Rigged Position (With the
R Sharks Fin) (OBSOLETE) REPLACED BY 27510082000800 AND
R 27510082000900 AMM 27-51-44-820-001 Adjustment of the Interconnecting Strut AMM 27-54-00-200-001 Detailed Visual Inspection of the Transmission Assembly (Including Part of the Transmission in Zone 140) AMM 27-54-00-200-003 Detailed Dimensional Check - Free Movement at the Trailing Edge of the Flaps AMM 27-54-00-710-001 Operational Test of the Flap System AMM 27-54-49-000-008 Removal of the Flap Track 1 to 4 Actuators 6205CM(6255CM)/6211CM(6261CM)/ 6221CM(6271CM)/6233CM(6283CM) AMM 27-54-49-400-005 Installation of the Flap Track 1 to 4 Actuators 6205CM(6255CM)/6211CM(6261CM)/ 6221CM(6271CM)/6233CM(6283CM) AMM 27-54-55-000-001 Removal of the Flap-Actuator Lever Assembly - Tracks 1 and 2 AMM 27-54-55-000-002 Removal of the Flap-Actuator Lever Assembly - Track 3 AMM 27-54-55-000-003 Removal of the Flap-Actuator Lever Assembly - Track 4 AMM 27-54-55-400-001 Installation of the Flap-Actuator Lever Assembly -Tracks 1 and 2 AMM 27-54-55-400-002 Installation of the Flap-Actuator Lever Assembly -Track 3 AMM 27-54-55-400-003 Installation of the Flap-Actuator Lever Assembly -Track 4
3. Fault Confirmation
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A. Test
NOTE : Some flap alignment faults can occur in flight (when the flaps are
____ under an aerodynamic load), but do not occur during an operational test on the ground.
Thus when a flap alignment fault messsage (FLP 1 (2) CHK LH (RH) MECH DRIVE) is shown on the Post Flight Report (PFR), but the initial test on the ground is OK (the flaps move and align correctly), it is necessary to continue with the fault isolation procedure. This is because some faults, in the interconnecting strut or flap transmission assembly, only show during flight. It is also possible that a subsequent test can be OK (after maintenance work has been done), but the fault has not gone. Thus it is necessary to make a record in the aircraft log to monitor the operation of the flaps during the next flight.
If the initial test is not OK (the flaps move, but the surfaces do not align correctly) the cause of the fault can be damage to the flap track mechanism, or an unserviceable flap actuator. This fault condition will show during the initial operational test and a subsequent test will show if the fault has gone. A record in the aircraft log book, to monitor the flaps during the next flight, will make sure that the flaps also operate correctly under an aerodynamic load.
(1) Do the Operational Test of the Flap System (Ref. AMM TASK 27-54-00-710-001):
- if the initial test is not OK, do the fault isolation procedure in Para. 4.A.(1)
- if the initial test is OK, continue and do the fault isolation procedure in Para. 4.A.(5)
- if a subsequent test is OK, make a record in the aircraft log to monitor the operation of the flaps, during the next flight.
4. Fault Isolation
_______________
A. Procedure
(1) Do a visual check of the alignment of the inboard and outboard flap surfaces, on the applicable wing:
- if the flap surfaces are aligned, do step (5)
- if the flap surfaces are not aligned, do step (2).
NOTE : When a flap alignment fault occurs, the torque-limiters do not
____ usually operate. If a torque-limiter has operated, it is possible that the related flap-actuator or flap-track mechanism is the cause of the alignment fault.
May 01/04R CES
(2) Examine the flap-actuators and flap-track mechanisms of the flap which is not aligned correctly (Ref. AMM TASK 27-54-00-200-001).
- if there are no worn or damaged components, do step (4)
- if there are worn or damaged components, do step (3). 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 飞行操纵 1(99)
