TASK 30-00-00-040-805
8. MMEL 30-09 (DDPG) Preparation - Pitot, Pitot/Static and Temperature Probe Heater Lights
Inoperative
A. General
(1) This task gives the maintenance steps which prepare the airplane for flight with a pitot,
pitot/static, and temperature probe heater light inoperative.
B. References
Reference Title
24-22-00-860-813 Supply External Power (P/B 201)
C. Location Zones
Zone Area
200 Upper Half of Fuselage
D. Procedure
SUBTASK 30-00-00-710-005
(1) Make sure the probe heater associated with the light operates.
(a) Make sure the covers are removed from all air data probes and vanes.
(b) Do this task: Supply External Power, TASK 24-22-00-860-813.
WARNING
DO NOT TOUCH THE AIR DATA PROBE. THE PROBE CAN GET VERY
HOT. A HOT PROBE CAN CAUSE INJURY TO PERSONNEL.
CAUTION
DO NOT HEAT THE AIR DATA PROBE LONGER THAN IS NECESSARY
TO RUN THE TEST. HEATER LIFE CAN BE SHORTENNED IF YOU
LEAVE IT ON LONGER THAN NECESSARY TO RUN THE TEST.
(c) Put the applicable PITOT STATIC HEAT switch to the ON position.
(d) Make sure the applicable probe gets warm.
(e) Put the applicable PITOT STATIC HEAT switch to the OFF or AUTO position.
SUBTASK 30-00-00-930-007
(2) Put an INOP placard on the affected sensor heater light.
END OF TASK
TASK 30-00-00-440-805
9. MMEL 30-09 (DDPG) Restoration - Pitot, Pitot/Static and Temperature Probe Heater Lights
Inoperative
A. General
(1) This task puts the airplane back to its usual condition after operation with a pitot, pitot/static,
and temperature probe heater light inoperative.
B. Procedure
SUBTASK 30-00-00-810-005
(1) Correct the fault.
(a) Find the fault code or description of the fault that occured.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
30-00-00
Page 920
D633A101-ILF Feb 15/2018
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL
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