Mooney M20V - Page 44

MOONEY INTERNATIONAL CORPORATION
M20V SERVICE AND MAINTENANCE MANUAL
Page
Date
15
MAR 2017
Rev Date
1. Visually inspect propeller, spinner, and engine
cowling; remove cowling.
2. Inspect and clean induction air filter if aircraft has
been operating under dusty conditions. Check opera-
tion of alternate air door.
3. Perform pre- inspection operational check per CMI
50- Hour inspection procedures. Adjust settings, if
needed.
4. Drain engine oil sump.
5. Remove and replace full- flow oil filter cartridge or
integral oil pressure screen.
6. Inspect filter element or screen for foreign materi-
al.
7. Service engine oil sump with proper type, grade,
and amount of lubricating oil.
8. Inspect engine compartment for evidence of fuel,
oil or exhaust leaks.
9. Inspect security and condition of equipment
installed on engine.
10. Inspect fuselage, wing and empennage for exter-
nal evidence of damage. Pay particular attention to
scratches and dents.
11. Inspect windshields and windows for crazing,
cracks, and scratches.
12. Inspect control systems for binding, excessive
freeplay, and damage.
13. Inspect pitot and static systems for possible ob-
structions.
14. Inspect aircraft exterior for security of bolts,
screws, etc.
15. Inspect and service batteries.
5-20-05 - 50- HOUR INSPECTION (Repetitive)
The 50- hour inspection includes all requirements of
the 25- hour inspection, plus the necessary removal of
inspection doors, panels, or fairings. After the first 25
hours of operating time, a new, re- manufactured, or
newly overhauled engine should be given a 50- hour in-
spection including replacement of the lubricating oil
and filter.
1. Engine Inspections. (Refer to engine manufac-
turer’s service data for oil change frequency)
A. Perform pre- inspection operational check per
CMI 50- Hour Inspection procedures. Adjust settings, if
needed.
B. Drain engine oil sump.
C. Remove and replace the full- flow oil filter car-
tridge or integral oil pressure screen.
D. Inspect filter element or screen for foreign mate-
rial.
E. Service engine oil sump with proper type, grade,
and amount of lubricating oil.
F. Inspect engine intake and exhaust systems for
evidence of leakage, looseness or damage.
G. Inspect ignition leads, harness, spark plug el-
bows and shielding nuts for damage and security.
H. Inspect cylinders for evidence of overheating.
Engine Installation Inspections.
I. Inspect baffles for secure anchorage, close fit
around cylinders, and freedom from cracks.
J. Inspect engine controls for full travel, freedom of
movement, and security.
K. Drain and clean fuel strainer (Gascolator).
L. Visually inspect fuel and oil lines for security of
connections and evidence of leakage or damage.
M. Visually inspect induction air system; check op-
eration of alternate- air door (refer to paragraph
71- 62- 00).
N. Inspect engine mount bolts at firewall & Lord
isolator mounts for security and condition.
2. Propeller.
-NOTE-
REFER to HARTZELL Owner’s Manual 115N:
Hartzell recommends that new or newly overhauled
propellers be lubricated after the first one or two hours
of operation because centrifugal loads will pack and re-
distribute grease, which may result in a propeller imbal-
ance. Redistribution of grease may also result in voids
in the blade bearing area where moisture can collect.
A. Inspect propeller hub and spinner for general
condition, looseness, and/or oil leakage.
B. Inspect blades for nicks and cracks. Repair any
discrepancy prior to next flight.
3. Cabin.
A. Inspect brake and parking brake control sys-
tems for proper operation and fluid level.
B. Inspect trim system and indicator for free opera-
tion and travel.
C. Inspect cabin and baggage doors for damage,
proper operation, and sealing.
D. Lights - Inspect cabin interior, instrument panel,
glareshield, position, anti- collision and landing and taxi
lights.
E. Inspect fuel selector valve for proper tank selec-
tion, positive valve selection through range of rotation.
Inspect gascolator, and boost pump for proper opera-
tion.
F. Inspect oxygen system, plumbing and attach-
ments (if installed).
4. Landing Gear.
A. Inspect tires for cuts, blisters, wear and proper
inflation.
B. Inspect shock discs for proper extension at air-
craft static weight.
5-20-05