Servicing and Handling - NATOPS CH. 3 Flashcards
Note about who is authorized to perform servicing and handling
All PQMs and aircrewman qualified in model are authorized to perform servicing and handling of the aircraft when qualified maintenance personnel are not available.
Using loose pyrotechnics, smoking, or striking matches while working on the aircraft, or using any flame producing device within ______ feet of the helicopter may result in a fire.
50 feet
Fueling : A minimum of ____ feet should be maintained from other aircraft or structures and _____ feet from any operating radar set.
50 feet, 75 feet
What do you need to obtain fuel quantity readings?
Electrical power
Do you need to drain the fuel system when changing from one authorized fuel to another? Such as JP-5 to JP-8.
No
___________ may be encountered following nose down ground operations in excess of _____ minutes.
Flameouts, 10 minutes
To prevent engine flameout during launch, establish IGE hover for ____ seconds with no _______ ________ cautions.
10 seconds, FUEL PRESS
What are the four operational restrictions using JP-4/JET B?
- Takeoffs shall stabilize in a hover for 10 seconds with no fuel press cautions.
- Single engine training is prohibited.
- Operating characteristics may change. Lower operating temps, slower acceleration, and shorter range may be experienced.
- Due to the vapor qualities of mixed JP-4/JET B, the next two refueling with a primary fuel shall be treated as if JP-4/JET B is still present.
If tanks are suction refueled after JP-4/JET B, are tanks assumed to be rid of JP-4/JET B?
Yes
Fuel Changeover Procedure
- Assume all tanks are 100% filled with JP-4/JET B.
- During ground/flight operations, empty the external tanks into the main tank before refueling.
- Periodically refuel tanks with JP-5/8.
A cumulative of at least 2 refueling must be added.
What fuel must helicopters must be filled with prior to flying aboard a ship?
JP-5 (F-44)
What is the warning about hangaring when fueling with JP-5 is not possible?
Helicopters shall not be hangared until the flashpoint of the fuel tanks is above 120 degrees F.
Primary Fuel
A fuel that the aircraft is authorized to use for continuous, unrestricted operations.
Restricted Fuel
A fuel that imposes operational restrictions on the aircraft.
Emergency Fuel
A fuel which may be used for a minimum time when no other primary or restricted fuel is available in case of emergency or operational necessity.
What bulk fuel temperature do you have to keep the fuel above?
0 degrees C
Do you need electrical power to refuel?
No. The system will automatically shut off via the check valves when all tanks are full.
What pressure does pressure refueling occur?
55 psi
Internal fuel cell pressure greater than ____ psi can cause rapid fuel cell expansion, resulting in aircraft damage and fuel spill.
2 psi
If fuel quality is in question, how should the helicopter be refueled?
HIFR fitting
What mixture of JP-5 and JP-8 or JET A1 will ensure the minimum hangaring flashpoint of 120 degrees F?
70% JP-5
30% JP-8 or JET A1
What is FSII? What is a commercial additive we may use? What form is required?
Fuel System Icing Inhibitor
PRIST, only the premixed form. Aerosol can form is not authorized.
JP-5 Fuel Quantity
590 gallons, 4,012 lb
JP-8 Fuel Quantity
590 gallons, 3,953 lb
What is the restriction with gravity refueling?
Not authorized with engines or APU operating. Rotors produce static charge of 15,000-20,000 volts creating a dangerous spark potential.
What is the static vertical clearance between the deck and the lowest point on the aux tank?
Shall not be less than 12 inches
Engine Oil Capacity
7.3 quarts
APU Oil Capacity
2.0 quarts
Main Transmission Oil Capacity
7.5 gallons
IGB Oil Capacity
2.75 pints
TGB Oil Capacity
2.75 pints
Hydraulic Reservoir Capacity
1.0 quart
Utility Hyd Reservoir
0.92 quart
Rescue Hoist Reservoir
1.16 quarts
Engine Starter Reservoir
200 cc
When does the engine oil need to be serviced?
When engine oil is less than halfway between ADD and FULL marks.
How long after shutdown do you have to wait to check engine oil?
20 minutes
When can you check the APU oil level after shutdown?
1 hour after APU shutdown
What time does the HOT scale represent for the main transmission oil? COLD?
30 minutes to 2 hours after shutdown.
2 hours or longer after shutdown.
IGB Oil Level
Must be within the inner circle of the bullseye sight gauge.
TGB Oil Level
Must be within red upper and lower limit lines.
Caution about servicing IGB/TGB with tail folded?
Sight gauges are not accurate
What line is the fluid level indicator for the hydraulic pumps?
1/8 inch wide white stripe at the outboard edge of the piston.
Hydraulic 4 Way Selector Valve
OUT 1 - No. 1 Hyd
OUT 2 - No. 2 Hyd
OUT 3 - Backup Hyd
OUT 4 - Rotor Brake
How much into the over serviced (blue) zone may a hyd pump be?
3/8 inch
What is proper servicing of the utility hyd pump?
3 white stripes visible.
4 is over serviced, 2 is under serviced, 1 is empty reservoir.
Blade Damper Accumulator Servicing
Serviced with hyd fluid and nitrogen. Hyd should be in the green or yellow full area. Nitrogen should indicate the proper charge for the OAT listed on the chart.
What is the minimum pressure to jettison a full sonobuoy launcher?
1,100 psi
When does the sonobuoy system secure jettison?
250 psi
What is proper servicing of the sonó launcher?
1,175 plus or minus 25 psi
Windshield Washer Servicing below 0 degrees C
50% water, 50% isopropyl alcohol
External Power Requirements
115/200 V, 3 phase, 400 Hz ac power
What draw does the aircraft put on external power?
Has a 4-amp circuit breaker that places a 2-amp draw on the cable
Towing Restrictions (17 total, only important few shown here)
Tail wheel only
H-60 24 foot tow bar must be used
Three wing walkers and a brake rider
Each have a whistle and flashlight
Towing speed shall not exceed 5 mph
Tail wheel should be unlocked
Searchlight stowed
Why does external power or the battery have to be on prior to folding the tail pylon?
To ensure the tail index actuator engages immediately after starting pylon fold sequence. Uncontrolled windmilling may result if not.
With winds ____ knots or more, park helicopter into the wind.
20 knots
If winds are expected to be ____ knots or gusts to _____ knots, fold and secure main rotor blades.
45 knots, 60 knots
Initial Tiedowns
2 on each main mount (4 total)
Required prior to and after shipboard movement, during startup, and immediately after landing.
Permanent Tiedown
2 on each main, high and tail point (12 total)
Required when ship is not at flight quarters
Heavy Weather Tiedown
3 on each main, high and tail point (18 total)
Heavy Weather = Surface winds average 35 knots, sea state 8 feet or higher, winds over deck exceeds 60 knots, pitch exceeds 4, or roll exceeds 12.
Where should rotor blade clamps be placed?
Approximately 2 1/2 feet inboard of the blade tip
In what order should blade clamps be installed?
Red, black, blue, yellow
