(e) (Refer to page block 301 table 3). The LH APPU and RH APPU synchro angles are shown as a decimal value.
(f) If there is a difference between the LH and RH values, do the fault isolation.
(g) A difference of more than 5.2 deg. generates an ASYMMETRY fault message.
(2) For the fault message, FLP 2 ASYMMETRY LH/RH. CHECK FLP MECH DRIVE. Do the procedure at Para.3.A.(1) but set SFCC 2.
4. Fault Isolation
_______________
A. Procedure.
(1) Do the BITE test. (Ref. AMM TASK 27-51-00-740-002).
(a) The BITE gives a "WTB,s set in this channel".
(b) Refer to the PPU DATA to find the defective wing, the APPU DATA that is incremented from the set control lever position by more than 5.2 deg. shows the defective wing. (Ref. page block 301 table 4) for the control lever position to APPU data.
(2) Do the reset of the wing tip brakes (Ref. AMM TASK 27-50-00-869-006)
(3) Do the detailed visual inspection of the Flap transmission assembly (Ref. AMM TASK 27-54-00-200-001), correct any failure, (Ref. AMM chap. 27).
(a) During the inspection at Para 4.A.(3):
- refer to (Ref. AMM TASK 27-51-18-000-001) Figure 402/Task 27-51-18-991-001 and identify the APPU.
- do a check of the APPU zero datum mark.
(b) If the zero datum mark is not aligned. Do the manual adjustment of the position pick off units (Ref. AMM TASK 27-51-00-820-001).
(c) If the zero datum is aligned:
- do the adjustment of the flap rigged position (Ref. AMM TASK 27-51-00-820-006) and make sure that the transmission shafts and spherical bearings are satisfactory.
(4) Do the operational test of the flap system, (Ref. AMM TASK 27-54-00-710-001).
「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 250
May 01/04R CES
(5) Access the SYSTEM STATUS FLAP and make sure that NO FAULTS is shown.
「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 251
May 01/04R
CES Flap System Runaway.
1. Possible Causes
_______________
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 27-50-00-869-006 Reset of the Wing Tip Brake (WTB) of the Flap System on the Ground AMM 27-51-00-740-002 Bite Test of the Slat and Flap Control Computers
(Flap System) AMM 27-51-00-820-001 Manual Adjustment of the Position Pick-Off Units AMM 27-51-19-000-001 Removal the Feed Back Position Pick-Off Unit AMM 27-54-00-200-001 Detailed Visual Inspection of the Transmission
Assembly (Including Part of the Transmission in Zone 140) AMM 27-54-00-710-001 Operational Test of the Flap System
3. Fault Confirmation
__________________
A. Analysis.
(1) Runaway is a position difference between the two APPU's and the FPPU, or, a flap movement away from the commanded position.
(2) For the fault message, FLP 1 RUNAWAY CHECK FLP MECH DRIVE. Access the MENU MODE and set it to SFCC 1.
(a) Go to the submenu SYSTEM DATA FLAP.
(b) Press the line key 1L to set the PPU page.
(c) The SFCC transmits the LH and RH APPU and the FPPU data page(s) to the CFDS.
(d) Refer to page block 301 table 3.The LH APPU, the FPPU and RH APPU synchro angles are shown as a decimal value.
(e) The selected page is transmitted again every five seconds with refreshed data.
(f) The LH and RH APPU values are approximately the same (a difference of not more than 5.2 degrees).
「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 252
May 01/04R CES
(3) A runaway is shown if there is a difference between the APPU values, and the FPPU of more than 5.2 degrees. Do the fault isolation.
(4) For the fault message, FLP 2 RUNAWAY CHECK FLP MECH DRIVE.Do the procedure at Para. 3.A.(1) but for SFCC 2.
4. Fault Isolation
_______________
A. Procedure.
(1) Do the BITE test (Ref. AMM TASK 27-51-00-740-002).
