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B757 - 200 MINIMUM EQUIPMENT LIST
11. Reset both WARN ELEC A and B circuit breakers. 12. If the stick shaker failed to operate normally, either the WEU power supply or both stall warning modules are inoperative. Perform the appropriate steps below: A. For a failed WEU power supply, check the Warning Electronics Power Supply fault balls. If a fault ball is present, reset power supplies. If either power supply has failed, remove and replace (AMM 31-51-00). Dispatch is not permitted with either power supply inoperative. B. For an inoperative stall warning or autoslat function (both stall warning systems or autoslat systems failed), check the stall warning BITE module on the P51 panel for fault indication. Dispatch is not allowed. Systems must be repaired. 13. Complete steps 5 or 6 from the above procedure (Basic System) if a nuisance stick shaker or autoslat has occurred. B757 - 200 MINIMUM EQUIPMENT LIST
REPAIR INTERVAL B 2 NUMBER INSTALLED ITEM 1 NUMBER REQUIRED FOR DISPATCH REMARKS OR EXCEPTIONS (M+P) One may be inoperative on the non-flying pilots side provided stabilizer trim system is verified to operate normally. 27-41-1 Control Wheel Trim Switch Systems
EICAS STATUS MESSAGES None PLACARD As appropriate MAINTENANCE (M) 1. Verify stabilizer trim system operates normally by performing the MAINTENANCE (M) procedure in Item 27-41-2. 2. Verify the remaining control wheel trim switch is operative in each direction for at least three seconds and observe corresponding stabilizer motion.
REPAIR INTERVAL C 2 NUMBER INSTALLED ITEM 1 NUMBER REQUIRED FOR DISPATCH REMARKS OR EXCEPTIONS (M+P) (O) One may be inoperative provided: a) Horizontal stabilizer trim operates normally using stabilizer trim levers (Alternate Stabilizer Trim Switches), b) Approach minimums do not require use of three autopilots, and 27-41-2 Horizontal Stabilizer Primary Trim Channels c) No arm or control valves are failed in the energized position. EICAS STATUS MESSAGES None PLACARD As appropriate MAINTENANCE (M) NOTE: MMEL relief under this item is for certain failures in one primary trim channel. A primary trim control channel consists of the control wheel stab trim switches and associated wiring through the respective left/right SAMs and STCMs. Depending on the failure, the STAB TRIM light may or may not illuminate. While it may not be possible to precisely determine the exact failure, dispatch is permitted with less than full trim rate available from the control wheel switches provided the following procedure confirms full rate trim is available through the alternate trim system. www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：757 最低设备清单 Minimum Equipment List (MEL) 2
