S 212-086
(4)
Examine the compressor for signs of volcanic ash (AMM 38-15-01/401).
S 682-087
(5)
Get a water sample from the water tank and examine it for signs of volcanic ash contamination (AMM 12-14-01/301).
S 022-088
(6)
Remove the Water Quantity Tramsmitter to be examined
(AMM 38-14-01/401).
S 212-089
(7)
Examine the Water Quantity Transmitter for signs of volcanic ash contamination (AMM 38-14-01/401).
M. Examine the Smoke Detectors and Blowers
S 212-090
(1)
Examine the smoke detector of the cargo compartment for signs of volcanic ash. If there are signs of ash, replace the cargo compartment smoke detector (AMM 26-16-01).
S 212-091
(2)
Examine the cargo compartment smoke detector blowers for signs of volcanic ash contamination. If there are signs of volcanic ash, replace the blowers (AMM 26-16-02/401).
S 212-092
(3)
Examine the Equipment Cooling Smoke Detector for signs of volcanic ash contamination. If there are signs of volcanic ash, replace the smoke detector (AMM 21-58-19).
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N. Examine the Fire Extinguisher Bottle Nozzles
S 212-093
(1) Examine the fire extinguisher bottle nozzles in the areas that follow for volcanic ash contamination (AMM 26-20-00):
(a)
The Engines
(b)
The Auxiliary Power Unit (APU)
(c)
The Cargo Compartment.
O. Examine All Engine Accessories
S 212-094
(1) Examine all engine accessories (this includes the integrated drive generator and oil cooler) for volcanic ash contamination (AMM 72-00-00).
P. Examine the Landing Gear
S 212-095
(1) Examine the landing gear for signs of volcanic ash contamination. Do the steps that follow:
(a)
Examine the bare inner cylinders of the main and nose landing gear shock struts.
(b)
Examine the bare piston rods of all hydraulic actuators.
(c)
Examine all of the attachment points of the landing gear components.
(d)
Examine all landing gear:
1) Door hinges
2) Lock mechanisms
3) Ground door release cables and pulleys
4) Ground door release handle bearings.
(e)
Examine all cables and pulleys.
(f)
Examine the brake metering valves.
(g)
Examine the steering mechanism components of the nose landing gear.
(h)
Examine the proximity switches (sensors).
(i)
Examine the main and nose landing gear: 1) Alternate extension system 2) Electrical actuators and related drive mechanisms.
Q. Examine the Hydraulic Systems
S 682-096
(1)
Use the Reservoir Sampling Valve and get a sample of the hydraulic fluid from the Left, Right, and Center hydraulic reservoirs. Examine the samples for signs of volcanic ash contamination (AMM 29-11-23).
S 022-097
(2)
Remove the pressurization modules of the hydraulic reservoirs for examination (AMM 29-11-16).
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757 MAINTENANCE MANUAL
S 212-098
(3) Examine the pressurization module components that follow for volcanic ash contamination:
(a)
The air filters
(b)
The module check valves
(c)
The module bleed valves.
R. Examine the Flight Controls
S 212-099
(1) Examine the flight controls for signs of volcanic ash contamination. Do the steps that follow (AMM 27-00-00):
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