NATOPS Chapter 12 Supplemental Info HSM-50 Flashcards
PAC Emergency Responsibilities
The PAC shall complete the critical memory items that do not require releasing the flight controls.
PNAC Emergency Responsibilities
APUT
- Assist in ensuring the continued safe flight of the aircraft.
- Perform the critical memory items that do not involve the flight controls.
- Use the pocket checklist to complete non-critical memory items.
4.Troubleshoot as required.
Aircrewman Emergency Responsibilities
PCUBA
- Provide the pilots with verbal calls as necessary to ensure the continued safe flight of the aircraft.
- Complete the applicable critical memory items.
- Use the pocket checklist to complete the remaining non-critical memory items.
- Back up the pilots with the pocket checklist to the maximum extent possible. 5.AssistthePNACwithtroubleshooting.
The following (should/shall) be performed for all emergencies…
Should
MADCD
Maintain aircraft control
Alert Crew
Determine the precise nature of the problem
Complete the applicable emergency procedure or take action appropriate for the problem
Determine landing criteria and land as required
The statement about emergency urgency
The urgency of certain emergencies requires immediate and instinctive action by the PAC. The most important single consideration is helo control. All procedures are subordinate to this requirement.
Emergencies and seatbelts
Due to the possibility of rapid degradation or loss of a/c control during certain emergencies, the PIC should ensure that all aircrew are strapped into their seats with the shoulder harnesses locked at all times during ground or flight ops, except when the release of the seatbelt is required to perform mission or flight related functions
NVD emergency recommendation
In an NVD operating environment, it is recommended that the entire crew remain goggled and initiate the required immediate action procedures.
Circuit Breaker: Check
Visually observe CB condition. Do not change condition.
Circuit Breaker: Pull
If CB is in, pull CB out. If CB is out, do not change condition.
Circuit Breaker: Reset
If CB is out, push CB in. If CB is in, do not change condition. Popped CBs may be reset only once.
Caution: Holding in a CB while resetting may cause electrical fire or damage to electrical equipment
Circuit Breaker: Cycle
If CB is in, pull CB out, and then push it back in. If CB is out, do not change condition.
Caution: Holding in a CB while resetting may cause electrical fire or damage to electrical equipment
Resetting master caution
Reset MASTER CAUTION after each malfunction to allow the systems to respond to subsequent malfunctions.
Define: Single engine condition
A flight regime that permits sustained flight with one engine inop. Establishing single engine conditions may include increasing power available (C power on, anti ice off), decreasing power required (dumping, jettisoning), and achieving single engine airspeed.
Cause and indications of compressor stall
Cause: aerodynamic disturbance of airflow through engine
Indications: Rapid increase in TGT, hang up or rapid decrease in Ng, change in engine noise level from barely audible to muffled explosions.
Indication and action for an impending high speed shaft failure
High intensity, medium to high freq vibration
Consider securing engine to prevent ultimate shaft failure. Extreme care must be taken to make sure you are securing the correct engine (if you secure the wrong one, you’ll increase load and may cause the other one to fail)
When should DRVSHAFT FAIL caution be ignored?
Np less than 20%
What happens if LDS fails?
Max input to the HMU regardless of collective position.
Will result in excess power driving main rotor during auto (EDECU does not have enough down trimming authority.)
LDS Malfunction indications
When does ENG OIL HOT caution come on?
Eng oil temp above 150C
When does ENG HOT come on?
TGT above 949
When does ENG OIL PRESS HI come on?
Engine oil px at or above 120 psi
When does ENG OIL PX LOW come on?
Ng above 70% and engine oil px below 26 psi
Or
Engine oil px below 22 psi
Low ground speed or low rate of descent for ditching in water?
Minimizing rate of descent provides greatest chance of survival