NATOPS Chapter 2 Transmission EPs HSM-50

Question 1

2 categories of main xmsn malfunctions

Answer 1

chip and lubrication

Question 2

if chip problem

Answer 2

consider reducing load (PCL to IDLE, gen off)

Question 3

if lubrication problem

Answer 3

consider securing main gens after APU gen turned on

Question 4

Impending failure of accessory module

Answer 4

input chip caution

Question 5

Indications of accessory drive failure

Answer 5

loss of hyd pump and generator

Question 6

low but steady oil px

Answer 6

single pump failure

Question 7

continually decreasing px

Answer 7

leak

Question 8

loss of tail rotor drive in as little as ___ min after ___

Answer 8

8; catastrophic loss of lubricaiton

Question 9

TR drive failures precipitated by __, approx. __ min prior to failure

Answer 9

dramatic increase in vibs/noise; 1 min

Question 10

Lights for main transmission malfunction

Answer 10

Adv: OIL HOT, PRESS HI, PRESS LO
Caution: OIL HOT, PRESS HI, PRESS LO, #1/#2 ACC CHIP, MAIN CHIP

Question 11

MAIN XMSN PRESS HI caution

Answer 11

px > 130 psi on vids

Question 12

MAIN XMSN OIL HOT advisory

Answer 12

oil temp greater than or equal to 105 on vids and caution is NOT activated

Question 13

MAIN XMSN PRESS HI advisory

Answer 13

oil px between 65 to 130 psi on vids and caution is NOT activated

Question 14

MAIN XMSN PRESS LO advisory

Answer 14

oil px less than or equal to 30 psi on vids, Nr is greater than or equal to 25% and caution is NOT activated

Question 15

XMSN OIL HOT caution comes on at

Answer 15

117 deg C

Question 16

Indications of imminent failure for Tail/Intermediate Transmission

Answer 16

Cations accompanied by strong medium freq vibs, hot metal fumes, or any other associated indications

Question 17

What type of landing should you do for an imminent tail/intermediate xmsn failure?

Answer 17

Running or no hover