UH-60A/L Ch9 FRC Chg 1

Question 1

SINGLE-ENGINE FAILURE

Answer 1

Immediate Actions
- Achieve safe single engine AS (if possible)
- External cargo/stores - Jettison (if required)

• LASAPOSSIBLE - if continued flight is not possible
• LASAPRACTICABLE - if continued flight is possible

Question 2

FIRES: APU/ELECTRICAL/ENGINE

Answer 2

Immediate Actions
IF ENG EMER OFF Handle/APU fire T-handle illuminates in flight:

• Achieve safe single engine airspeed(if possible)
• ENG POWER CONT lever - OFF
• ENG EMER OFF handle/APU fire T-handle - Pull (as appropriate)
  -FIRE EXTGH switch - MAIN/RESERVE as required

If an electrical fire is present:

• BATT and GENERATOR switches - OFF
• LASAPOSSIBLE

Question 3

ENGINE CONTROL MALFUNCTION - (DEC/EDECU) LOW SIDE FAILURE

Answer 3

Immediate Actions
- If an engine control unit fails to the low side and the other engine is unable to provide sufficient torque, % RPM R will decrease. If % RPM R continues to decrease and single engine flight is not possible:

• ENG POWER CONT lever (low % TRQ/TGT engine) - LOCKOUT

(Maintain % TRQ approximately 10% below the other engine)

• LASAPRACTICABLE

Question 4

STABILATOR UNCOMMANDED NOSE DOWN PITCH ATTITUDE CHANGE

Answer 4

Immediate Actions
If an uncommanded nose down pitch attitude occurs:

• Cyclic mounted stabilator slew-up switch - Adjust (as required to arrest nose down pitch rate)

-LASAPRACTICABLE

Question 5

FLIGHT CONTROL/ROTOR SYSTEM VIBRATIONS OR MALFUNCTIONS ON GROUND

Answer 5

Immediate Actions
- ENG POWER CONT levers - OFF
- ENG FUEL SYS selectors - OFF
- FUEL BOOST PUMP switches - OFF

Question 6

FLIGHT CONTROL/ROTOR SYSTEM VIBRATIONS OR MALFUNCTIONS IN FLIGHT

Answer 6

LASAPOSSIBLE

Question 7

LIGHTNING STRIKE

Answer 7

Immediate Actions
- ENG POWET CONT levers - Adjust (as required to control engine % RPM and % RPM R)
- LASAPOSSIBLE

Question 8

MAIN TRANSMISSION FAILURE

Answer 8

LASAPOSSIBLE

Question 9

LOSS OF TAIL ROTOR CONTROL

Answer 9

Immediate Actions
If during cruise flight a right yaw becomes uncontrollable:
- AUTOROTATE - Maintain airspeed at or above 80 KIAS
- ENG POWER CONT LEVERS - OFF (during deceleration when intended point of landing is assured)

If at low airspeed or hover a right yaw becomes uncontrollable:
- Collective - Reduce
- ENG POWER CONT levers - OFF (5 to 10 feet above touchdown)

If an uncontrolled left yaw develops during low airspeed or hover:
- ENG POWER CONT levers - Retard
- Collective - Increase (% RPM R will decrease)
- ENG POWER CONT levers - OFF (5 to 10 feet above touchdown)
- Collective - Adjust for landing

Question 10

FUEL FLTR BYPASS #1 AND #2

Answer 10

LASAPOSSIBLE

Question 11

FUEL PRESS #1 AND #2

Answer 11

LASAPOSSIBLE

Question 12

HYD PUMP #1 AND #2

Answer 12

LASAPOSSIBLE (Restrict control movements to moderate rate)

Question 13

HYDRAULIC PUMP NO BACK-UP PUMP #1

Answer 13

• BACK-UP HYD PUMP switch - ON
• LASAPRACTICABLE - If BACK-UP PUMP ON advisory light appears
• LASAPOSSIBLE - If BACK-UP PUMP ON advisory light still does not appear.

Limited control of the T/R is achieved through the yaw boost servo & mechanical linkage due to #1 HYD PUMP and BU PUMP being inop leaving both stages of the T/R unpressurized.

Roll on landing at 40 KIAS or above, NO aerodynamic braking

Question 14

TAIL RTR SERVO #1 AND BACK-UP PUMP ON DOES NOT APPEAR

Answer 14

Immediate Actions
- TAIL SERVO switch - BACK-UP

Limited T/R control due to the #1 hyd pump and BU pump inop causing both stages of the T/R servo to be unpressurized. The yaw boost servo is still pressurized and the mechanical control system is intact.

Roll on at 40 KIAS or above with no aerodynamic braking.