NATOPS Chapter 7 Normal Procedures HSM-50 Flashcards
4 general things to inspect for
Corrosion, foreign object damage (FOD), condition, security
Failure to verify QD security may result in
malfunction of pilot assist servos or loss of tail rotor control
Improper installation of LDS roll pin may result in
engine overspeed
Proper installation of LDS roll pin is indicated by
LDS roll pin protruding from both sides of LDS control cable rod and collective bias tube with safety wire intact
If RMCU ENABLE/DISABLE is in DISABLE position when MSN PWR turned on,
TA will not indicate SEATED even if it is
conditions when stab may autoprogram
winds greater than 30 knots with AC power supplied
to prevent stab engaging due to wind when folded,
consideration should be given to disengaging stab auto mode while stab is folded
pilot station is hardwired to
V/UHF rado 1 via RCU
to prevent APU exhaust fire, wait at least ___ after APU shutdown to attempt restart to allow residual fuel to vaporize
2 minutes
if APU shuts down during start or after running, do not ___ because ___
cycle BATT switch or turn off APU CTRL switch; it will remove cause of shutdown from APU BITE indicator
head check shall be conducted any time
BLADEFOLD switch is moved from OFF position
if PYLON FLIGHT light is not illuminated
pylon and stabilator lockpins and tail rotor indexer shall be visually inspected prior to flight
hover altitude caret will not display until
mission comptuer has taken control
while performing CHIP IBIT
28 VDC is interrupted
during CHIP IBIT, WCAs and MASTER CAUTION will not correctly respond for
approx 40 seconds
CHIP IBIT will not function without
primary and backup computer on
on Fuel Quantity Test, should see
total fuel decreases to 0 (if external tank installed, total fuel will read what’s in external tank), #1/#2 FUEL LOW, MASTER CAUTION
Good RadAlt Test
RadAlt tone 5 +/- 1 beeps, indicator reading 100 +/- 10 ft for 5 seconds, yellow tape up to DH setting or 100 ft, whichever is lower
Good TACAN Test
BRG 1 needle 180 +/- 3 deg for 5 sec, DME 0.0 nm (+/- 0.5 nm), NAV needle centering (within 1/2 dot), a TO (if 180)/FROM (360) indication
Good Transponder Test
Absence of IFF cautions or advisories
Tail Rotor Servo Check
#1 TR SERVO #2 TR SERVO ON BKUP MASTER CAUTION no binds or restrictions while moving pedals
AFCS Ground Checks Allowable movement
SAS 1/2 and trim - Minimal movement in flight controls acceptable
Autopilot - No movement in flight controls
Helicopter shall not be flown if stab fails
any check involving manual operation, position indications, or warnings
if stab auto mode fails to engage, ___ may align stab actuators and allow stab auto mode to reengage
slewing stab full up then full down with ac power
Np shaft rub occurs due to
asymmetric heating of Np shaft by a hot engine
Np shaft rub definition
when rotor brake is released, Np shaft impacts Ng shaft causing compressor blades to impact casing
an unguarded cyclic may allow rotor arc to dip as low as
4 ft
if engine ignition is placed to NORM while start is in progress, __ may occur
hot start
it is normal for OIL FLTR BYPASS caution and/or high engine oil pressure to appear when
starting an engine below normal operating temps because of realtively high oil viscosity
Engine oil temp caution should disappear when engine oil reaches __ deg C
38
Ng will not indicate until __ %
6
Ground idle Ng split greater than __ is an indication of possible __. Do not fly until maintenance action is performed
3; possible rollpin failure
Engine Overspeed Test failure while testing A or B individually will
give same indications as a normal test of A and B simultaneously
During the C power check, a rapid rise in TGT may indicate what?
An engine control system malfunction
Hyd leak test lights
#1 TR Servo #2 TR Servo On Backup Pump On #1 RSVR Low #2 RSVR Low Backup RSVR Low SAS Boost Servo Off AFCS Degraded Master Caution
Tail Rotor Servo Check (Post Engagement Checks)
#1 TR Servo and Master Caution come on Within 1.5 seconds, get: #2 TR Servo On and BKUP Pump On
If electrical loads are introduced while on APU gen or external power, AFCC power sever may occur and cause ___ to appear
AFCS degraded
If droop stops not out by 100% Nr
Shutdown and investigate
Four things checking in engine on preflight
Oil filler caps
Oil level
Engine oil/fuel filter PDIs
Deswirl duct clamps
Stab Check
- Check 34-42
- Test button - stab moves 5 to 12 deg up +warning/tone
- Auto control on - 34 to 42
- Man slew - 5 to 10 trailing edge up in 4 to 8 sec
- Man slew to 0
- Auto on
After start, if no xmsn oil px, ___
Zero oil px may indicate ___
shut down
A no oil flow condition –> damage to rotors if engaged for over 1 min