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actuators, and IFF antenna connectors.
2. Static port Check. Secure door.
CAUTION 6. Transmission cowling Check; cowling for
damage and security, and inlet blast shield (if
installed) for condition and obstructions.
Absence of lateral rocking motion about
aft crosstube center mounting bolt could * 7. Transmission Check; lines, cables, and
result in ground resonance and airframe connections for condition and leaks,
structural damage. transmission oil level. Secure door.
3. Landing gear Check crosstubes, skid, skid 8. Particle separator Check condition and
shoes, and weight on gear switch. Check aft unobstructed.
crosstube mount and check lateral rocking
motion about the aft center mounting bolt by * 9. Engine compartment Check lines, cables,
applying light oscillating pressures at the aft and connections for condition and leaks, and
upper intermediate fuselage. overall condition of engine components.
Secure door.
4. Underside of fuselage Check; condition,
antennas, and cargo suspension assembly (if 10. Fuselage Check; condition, drain lines and
installed). vents, AC external power receptacle, lights,
AVR-2A aft sensor unit, if installed, and
5. F u e l sample D r a i n and check f o r antennas.
contamination.
11. Oil tank Check; tank condition and filler
8-11. INTERMEDIATE FUSELAGE RIGHT cap secure.
SIDE AREA 2.
8-12. TAILBOOM RIGHT SIDE AREA 3.
O * 1. Weapons system Check.
* 1. Tailboom Check condition as other items
2. UWP Check. are checked:
8-5
TM 1-1520-248-10
O a. AN/ALQ-144 IR Jammer Transmitter and CAUTION
mount Check; condition, security,
electrical cables, and covert windows for
cleanliness. Prior to servicing engine oil, refer to
procedures contained in paragraph 2-95
b. Driveshaft cover Check; condition and to preclude over-servicing and engine
security. damage or possible engine failure.
c. Antennas Check. * 2. Engine oil level Check.
d. Horizontal stabilizer Check condition, 3. Oil tank compartment Check; oil cooler
expandable bolts, and position light. blower, driveshaft, oil lines, and oil filter
bypass indicator button in. Secure door.
8-13. TAILBOOM AFT AREA 4. 4. Fuselage Check; condition, lights, AVR-2A
aft sensor unit, if installed, antennas, and
* 1. Tailboom Check; condition as other items heater vent.
are checked:
CAUTION
a. Vertical f i n Check; condition and
antenna connections.
To prevent damage to e l e c t r i c a l
b. Tail skid Check; condition and security. components all equipment placed in aft
electrical compartment shall be clear of
electrical components and properly
c. Lights Check. secured.
* 2. Tail rotor gearbox Check condition, oil
l e v e l , f i l l e r cap secure, and e l e c t r i c a l 5. Aft electrical compartment Check; (OH-
connections. 58D) ESC/ (OH-58D(R)) ECU connections
and PA sensing port unobstructed, condition
and connections on electrical avionic
* 3. Tail rotor Check.
components, circuit breakers in, aft battery
connected (if installed), AVTR tape installed
8-14. TAILBOOM LEFT SIDE AREA 5. as desired and secure loose equipment.
Secure door.
* 1. Tailboom Check condition as other items
are checked: * 6. Engine compartment Check; lines, cables
and connectors for condition and leaks, fuel
a. Driveshaft cover Check condition and filter bypass indicator and engine oil filter
security. bypass indicator buttons in, and overall
condition of engine components. Secure door.
b. Antennas Check.
* 7. Transmission Check; lines, cables, and
c. Horizontal stabilizer Check condition, connections for condition and leaks,
expandable bolts, and position light. transmission oil filter bypass indicator button
in. Secure door.
O d. AN/ALQ-144 IR Jammer Transmitter and
mount Check; condition, security, 8. Particle separator Check; condition and
electrical cables, and covert windows for unobstructed.
cleanliness.
* 9. Hydraulic reservoir Check fluid level.
Secure door.
8-15. INTERMEDIATE FUSELAGE LEFT
SIDE AREA 6. 10. Transmission cowling Check; cowling for
damage and security, and inlet blast shield (if
1. Oil cooler fan exhaust Check. installed) for condition and obstructions.
8-6
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OPERATOR’S MANUAL FOR ARMY OH-58D HELICOPTER 2(74)
