HEADQUARTERS OH-58A User manual
TM 55-1520-228-10
WARNING
An operating procedure, practice, etc., which, if not correctly followed, could result in personnel injury or
loss of life.
An operating procedure, practice, etc., which, if not strictly observed, could result in damage to or destruction
of equipment.
NOTE
An operating procedure, condition, etc., which it is essential to highlight.
WARNING
PRECAUTIONARY DATA
Personnel performing operations, procedures and practices which are included or implied in this technical manual
shall observe the following warnings. Disregard of these warnings or precautionary information can cause serious
injury or loss of life.
WARNING
STARTING ENGINE
Coordinate all cockpit actions with ground observer. Ensure that rotors and blast areas are clear and fire guard is
posted, if available.
WARNING
FIRE EXTINGUISHER
Exposure to high concentrations of monobromotribluoromethane (CF Br) extinguishing agent or toxic fumes pro-
duced by the agent should be avoided. The liquid should not be allowed to come into contact with the skin, as it may
cause frostbite or low temperature burns.
WARNING
GROUND OPERATION
Engines will be started and operated only by authorized personnel. Reference AR 95–1.
WARNING
ELECTROLYTE
Battery electrolyte is harmful to the skin and clothing. Neutralize any spilled electrolyte by flushing contacted areas
thoroughly with water.
Change 12 a
TM 55-1520-228-10
CARBON MONOXIDE
When smoke, suspected carbon monoxide fumes, or symptoms of anoxia exist, the crew should
immediately ventilate cabin and shut off heater.
HANDLING FUEL AND OILS
Turbine fuels and lubricating oil contain additives which are poisonous and readily absorbed through
the skin. Do not allow them to remain on skin longer than necessary.
HANDLING HYDRAULIC FLUID (MIL-H-83282)
Prolonged contact with liquid or mist can irritate eyes and skin. After prolonged contact with skin,
immediately wash contacted area with soap and water. If liquid contacts eyes, flush immediately
with clean water. If liquid is swallowed, do not induce vomiting; get immediate medical attention.
Wear rubber gloves when handling liquid. If prolonged contact with mist is likely, wear an appropri-
ate respirator. When fluid is decomposed by heating, toxic gases are released.
HAZARDOUS CARGO
Items of cargo possessing dangerous physical properties, such as explosives, acids,flammable,
etc., must be handled with extreme caution and in accordance with established regulations. Refer
to TM 38-250.
NOISE
Sound pressure levels in this aircraft during some operating conditions exceed the Surgeon Gen-
eral’s hearing conservation criteria as defined in TB MED 501. Hearing protection devices, such as
the aviator helmet or earplugs are required to be worn by all personnel in and around the aircraft
during its operation.
b Change 14
TM 55-1520-228-10
C 14
CHANGE HEADQUARTERS
No. 14 DEPARTMENT OF THE ARMY
WASHINGTON, D.C., 31 March 2006
TECHNICAL MANUAL
OPERATOR’S MANUAL
ARMY MODEL OH-58/AC
HELICOPTER
DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.
TM 55-1520-228-10, 17 January 1989, is changed as follows:
1. Remove and insert pages as indicated below. New or changed text material is indicated by a vertical
bar in the margin. An illustration change is indicated by a miniature pointing hand.
Remove Pages Insert Pages
a and b a and b
A and B A and B
2-1 through 2-4 2-1 through 2-4
2-7 through 2-10 2-7 through 2-10
2-13 and 2-14 2-13 and 2-14
2-23 and 2-24 2-23 and 2-24
2-29 and 2-30 2-29 and 2-30
2-35 through 2-38 2-35 through 2-38
2-46.1 and 2-46.2 2-46.1 and 2-46.2
2-49 through 2-52 2-49 through 2-52
2-57 and 2-58 2-57 and 2-58
3-3 and 3-4 3-3 and 3-4
5-1 and 5-2 5-1 and 5-2
(5-3 blank)/5-4 through 5-12 (5-3 blank)/5-4 through 5-12
6-1 and 6-2 6-1 and 6-2
8-5 through 8-8 8-5 through 8-8
8-11 through 8-14 8-11 through 8-14
9-1 through 9-13/(9-14 blank) 9-1 through 9-13/(9-14 blank)
2. Retain this sheet in front of manual for reference purposes.
TM 55-1520-228-10
C14
DISTRIBUTION:
To be distributed in accordance with Initial Distribution Number (IDN) 310230 requirements for
TM 55-1520-228-10.
By Order of the Secretary of the Army:
PETER J. SCHOOMAKER
General, United States Army
Chief of Staff
Official:
JOYCE E. MORROW
Administrative Assistant to the
Secretary of the Army
0528701
TM 55-1520-228-10
C13
CHANGE HEADQUARTERS
NO. 13 DEPARTMENT OF THE ARMY
WASHINGTON, D.C., 30 August 2005
TECHNICAL MANUAL
OPERATOR’S MANUALS
ARMY MODEL OH-58A/C
HELICOPTER
DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.
TM 55-1520-228-10, dated 17 January 1989, is changed as follows:
1. Remove and insert pages as indicated below. New or changed text material is indicated by a
vertical bar in the margin. An illustration change is indicated by a miniature pointing hand.
Remove Pages Insert Pages
A and B A and B
2-11 and 2-12 2-11 and 2-12
(5-3 blank) and 5-4 (5-3 blank) and 5-4
2. Retain this sheet in front of manual for reference purposes.
DISTRIBUTION: To be distributed in accordance with Initial Distribution Number (IDN) 310230,
requirements for TM 55-1520-228-10.
By Order of the Secretary of the Army:
PETER J. SCHOOMAKER
General, United States Army
Chief of Staff
Official:
SANDRA R. RILEY
Administrative Assistant to the
Secretar
y
of the Arm
y
0519202
TM 55-1520-228-10
C 12
CHANGE HEADQUARTERS
DEPARTMENT OF THE ARMY
NO. 12 WASHINGTON, D.C., 10 June 2005
TECHNICAL MANUAL
OPERATOR’S MANUAL
ARMY MODEL OH-58/AC
HELICOPTER
DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.
TM 55-1520-228-10, 17 January 1989, is changed as follows:
1. Remove and insert pages as indicated below. New or changed text material is indicated by a vertical
bar in the margin. An illustration change is indicated by a miniature pointing hand.
Remove Pages Insert Pages
a and b a and b
A and B A and B
2-1 through 2-12 2-1 through 2-12
2-27 and 2-28 2-27 and 2-28
2-37 and 2-38 2-37 and 2-38
2-43 and 2-44 2-43 and 2-44
2-49 through 2-52 2-49 through 2-52
2-55 through 2-60 2-55 through 2-60
2-63 and 2-64 2-63 and 2-64
(5-3 blank)/ 5-4 (5-3 blank)/ 5-4
7-79 and 7-80 7-79 and 7-80
8-7 and 8-8 8-7 and 8-8
9-7 and 9-8 9-7 and 9-8
etain
ual for 2. Retain this sheet in front of manual for reference purposes.
By Order of the Secretary of the Army:
PETER J. SCHOOMAKER
General, United States Army
Chief of Staff
Official:
SANDRA R. RILEY
Administrative Assistant to the
Secretaryof the Army
0512202
DISTRIBUTION: To be distributed in accordance with Initial Distribution Number (IDN) 310230,
requirements for TM 55-1520-228-10.
TM 55-1520-228-10
C11
CHANGE HEADQUARTERS
DEPARTMENT OF THE ARMY
NO. 11 WASHINGTON, D.C. 1 April 2003
TECHNICAL MANUAL
OPERATOR’S MANUAL
ARMY MODEL OH-58A/C
HELICOPTER
DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.
TM 55-1520-228-10, 17 January 1989, is changed as follows:
1. Remove and insert pages as indicated below. New or changed text material is indicated by a vertical bar in the
margin. An illustration change is indicated by a miniature pointing hand.
Remove pages Insert pages
a and b a and b
A and B A and B
i through iv i through iv
1-1 and 1-2 1-1 and 1-2
2-1 through 2-4 2-1 through 2-4
2-11 through 2-14 2-11 through 2-14
2-17 through 2-20 2-17 through 2-20
2-23 through 26 2-23 through 2-26
2-33 and 2-34 2-33 and 2-34
2-43 and 2-44 2-43 and 2-44
2-46.1 through 2-54 2-46.1 through 2-54
2-57 and 2-58 2-57 and 2-58
2-61 through 2-67(2-68 blank) 2-61 through 2-67(2-68 blank)
3-1 through 3-8.1/(3-8.2 blank) 3-1 through 3-8.2
– – – – – – 3-8.3 and 3-8.4
3-11 through 3-14 3-11 through 3-14
3-17 through 3-20 3-17 through 3-20
3-23 through 3-24.1/ (3-24.2 blank) 3-23 through 3-24.1/ (3-24.2 blank)
3-27 and 3-28 3-27 and 3-28
3-31 through 3-32.2 3-31 through 3-32.2
– – – – – – (3-32.3 blank)/ and 3-32.4
3-33 through 3-36 3-33 through 3-36
5-1 through 5-10 5-1 through 5-10
6-1 through 6-7/(6-8 blank) 6-1 through 6-7/(6-8 blank)
7-1 through 7-6 7-1 through 7-6
7-59 through 7-62 7-59 through 7-62
7-79 and 7-80 7-79 and 7-80
2-27 through 2-30 2-27 through 2-30
C11
TM 55-1520-228-10
Remove pages Insert pages
7-81/(7-82 blank) – – – – – –
(7-83 blank)/7-84 (7-83 blank)/7-84
8-1 through 8-12 8-1 through 8-12
8-15 through 8-17/(8-18 blank) 8-15 through 8-17/(8-18 blank)
9-1 and 9-2 9-1 and 9-2
9-7 and 9-8 9-7 and 9-8
9-11 through 9-14 9-11 through 9-14
A-1/(A-2 blank) A-1 and A-2
Index-1 through Index-9/(Index-10 blank) Index-1 through Index-9/(Index-10 blank)
2. Retain this sheet in front of manual for reference purposes.
DISTRIBUTION:
To be distributed in accordance with Initial Distribution Number (IDN) 310230, requirements for
TM 55-1520-228-10.
ERIC K. SHINSEKI
General, United States Army
Chief of Staff
Official:
JOEL B. HUDSON
Administrative Assistant to the
Secretary of the Army
0304901
By Order of the Secretary of the Army:
TM 55-1520-228-10
C10
CHANGE HEADQUARTERS
DEPARTMENT OF THE ARMY
NO. 10 WASHINGTON, D.C., 28 July 2000
TECHNICAL MANUAL
OPERATOR'S MANUAL
ARMY MODEL OH-58A/C
HELICOPTER
DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.
TM 55-1520-228-10, 17 January 1989, is changed as follows:
1. Remove and insert pages as indicated below. New or changed text material is indicated by vertical bar in the margin.
An illustration change is indicated by a miniature pointing hand.
Remove Pages Insert Pages
a and b a and b
A/(B blank) A and B
i through iv i through iv
1-1 and 1-2 1-1 and 1-2
2-3 through 2-12 2-3 through 2-12
2-17 and 2-18 2-17 and 2-18
2-21 and 2-22 2-21 and 2-22
----------- 2-22.1/(2-22.2 blank)
2-23 and 2-24 2-23 and 2-24
----------- 2-26.1 and 2-26.2
2-27 through 2-36 2-27 through 2-36
2-39 through 2-44 2-39 through 2-44
2-49 and 2-50 2-49 and 2-50
2-55 and 2-56 2-55 and 2-56
2-63 and 2-64 2-63 and 2-64
2-65/(2-66 blank) 2-65 and 2-66
------------ 2-67/(2-68 blank)
3-1 through 3-4 3-1 through 3-4
3-7 and 3-8 3-7 and 3-8
------------ 3-8.1/(3-8.2 blank)
3-23 and 3-24 3-23 and 3-24
3-24 1/(3-24.2 blank) 3-24.1/(3-24.2 blank)
3-25 through 3-30 3-25 through 3-30
3-33/(3-34 blank) 3-33 through 3-36
------------- 3-37/(3-38 blank)
4-1 though 4-20 4-1/(4-2 blank)
TM 55-1520-228-10
C10
Remove Pages Insert Pages
5-1 and 5-2 5-1 and 5-2
5-3 and 5-4 (5-3 blank) /5-4
5-5 through 5-12 5-5 through 5-12
6-1 through 6-6 6-1 through 6-6
6-7 and 6-8 6-7/(6-8 blank)
6-9/(6-10 blank) 6-9/(6-10 blank)
7-1 through 7-4 7-1 through 7-4
7-7 through 7-14 7-7 and 7-8
7-15/(7-16 blank) ----------
7-17 through 7-46 ----------
7-55 and 7-56 7-55 and 7-56
7-59 through 7-62 7-59 through 7-62
7-77 and 7-78 7-77 and 7-78
8-3 through 8-8 8-3 through 8-8
----------- 8-8.1/(8-8 2 blank)
8-9 through 8-16 8-9 through 8-16
8-17/(8-18 blank) 8-17/(8-18 blank)
9-1 and 9-2 9-1 and 9-2
9-7 through 9-10 9-7 through 9-10
9-13 and 9-14 9-13/(9-14 blank)
9-15/(9-16 blank) 9-15/(9-16 blank)
A-1/(A-2 blank) A-1/(A-2 blank)
Index-1 through Index-8 Index-1 through Index-8
Index-9/(Index-10 blank) Index-9/(Index-10 blank)
2. Retain this sheet in front of manual for reference purposes.
By Order of the Secretary of the Army:
Official:
ERIC K. SHINSEKI
General, United States Army
Chief of Staff
JOEL B. HUDSON
Administrative Assistant to the
Secretary of the Army
0011522
.
DISTRIBUTION: To be distributed in accordance with Initial Distribution Number (IDN) 310230, requirements for
TM 55-1520-228-10.
URGENT
TM 55-1520-228-10
C 9
CHANGE
NO. 9
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGTON, D.C., 18 July 1997
Operator"s Manual
ARMY MODEL OH-58A/C HELICOPTER
DISTRIBUTION STATEMENT A:
Approved for public release; distribution is unlimited
TM 55-1520-228-10, 17 January 1989, is changed as follows:
1.
Remove and insert pages as indicated below. New or changed text material is indicated by
vertical bar in the margin. An illustration change is indicated by a miniature pointing hand.
Remove pages Insert pages
2-33 and 2-34
3-23 and 3-24
3-31 and 3-32
8-5 and 8-6
2-33 and 2-34
3-23 and 3-24
3-24.1/(3-24.2 blank)
3-31 and 3-32
3-32.1 and 3-32.2
8-5 and 8-6
2.
Retain this sheet in front of manual for reference purposes.
By Order of the Secretary of the Army:
Administrative Assistant to the
Secretary of the Army
03872
DENNIS J. REIMER
General, United States Army
Chief of Staff
DISTRIBUTION:
To be distributed in accordance with DA Form 12-31-E, block no. 0230, requirements for
TM 55-1520-228-10.
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