Change 4 8-25/(8-26 Blank)
TM 1-1520-253-10 CHAPTER 9 EMERGENCY PROCEDURES Section I AIRCRAFT SYSTEMS 9.1 HELICOPTER SYSTEMS.
This section describes the helicopter systems emergen-cies that may reasonably be expected to occur and presents the procedures to be followed. Emergency operation of mission equipment is contained in this chapter, insofar as its use affects safety of .ight. Emergency procedures are given in checklist form when applicable. A condensed ver-sion of these procedures is contained in the condensed checklist TM 1-1520-253-CL.
9.2 IMMEDIATE ACTION EMERGENCY STEPS.
NOTE
The urgency of certain emergencies requires immediate and instinctive action by the pi-lot. The most important single consideration is helicopter control. All procedures are sub-ordinate to this requirement. The MASTER CAUTION should be reset after each mal-function to allow systems to respond to sub-sequent malfunctions. If time permits during a critical emergency, transmit MAYDAY call, set transponder to emergency, jettison external stores if required, turn off boost pumps, and lock shoulder harnesses.
Those steps that shall be performed immediately in an emergency situation are underlined. These steps must be performed without reference to the checklist. Nonunder-lined steps should be accomplished with use of the check-list.
9.3 DEFINITION OF EMERGENCY TERMS.
For the purpose of standardization, these de.nitions shall apply.
a.
The term LAND AS SOON AS POSSIBLE is de-.ned as landing at the nearest suitable landing area (e.g., open .eld) without delay. (The primary consideration is to ensure the survival of occupants.)
b.
The term LAND AS SOON AS PRACTICABLE is de.ned as landing at a suitable landing area. (The primary consideration is the urgency of the emergency.)
c.
The term AUTOROTATE is de.ned as adjusting the .ight controls as necessary to establish an autorotational descent and landing.
d.
The term EMER ENG SHUTDOWN is de.ned as engine shutdown without delay. Engine shutdown in .ight is usually not an immediate-action item unless a .re exists. Before attempting an engine shutdown, identify the affected engine by checking ENG OUT warning lights, % RPM, % TRQ, ENG OIL PRESS, TGT TEMP, and Ng SPEED.
1.
ENG POWER CONT lever(s) -OFF.
2.
ENG FUEL SYS selector(s) -OFF.
3.
FUEL BOOST PUMP CONTROL switch(es) -OFF.
If TGT rises above 538°C after shutdown, place AIR SOURCE HEAT/START switch as required, turn ENGINE IGNI-TION switch OFF, and press starter to motor engine for 30 seconds or until TGT TEMP decreases below 538°C.
e. The term LOCKOUT is de.ned as manual control of engine RPM while bypassing ECU functions. Bypass of the engine control will be required when % RPM 1 or 2 de-creases below normal demand speed.
When engine is controlled with ENG POWER CONT lever in LOCKOUT, en-gine response is much faster and TGT limiting system is inoperative. Care must be taken not to exceed TGT limits and keeping % RPM R and % RPM 1 and 2 in operating range.
Change 4 9-1
TM 1-1520-253-10
A
B
C
F
B
A
FIRE EXTINGUISHER FIRST AID KIT
(COCKPIT)
PILOT’S
FIRST SEAT
AID KIT
FIRE BOTTLE
COPILOT’S
SEAT
CRASH AXE
FIRST AID KIT
VIEW LOOKING FORWARD Figure 9-1. Emergency Exits and Emergency Equipment Diagram (Sheet 1 of 3) SA AB1092_1
9-4
TM 1-1520-253-10
HANDLE MUST BE IN "CLOSE" POSITION BEFORE CLOSING DOOR
CABIN AND COCKPIT DOORS EXTERIOR HANDLE
FWD
CABIN DOOR INTERIOR RELEASE HANDLE 中國航空網 m.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：UH-60Q 直升機技術手冊 直升機操作手冊 2(60)
