Table 7-16.
Malfunction Details - Continued
Indications presented
Corrective
to instructor/operator
Ref
Aircraft indications
Required
action
and trainee
number
and related effects
malfunction
Noncorrectable
Instructor: #1 NOSE GBX CHIP
22515
Metal chips detected in
#1 NOSE
GBX CHIP
No. 1 nose gearbox pump.
appears on CRT.
Trainee: CHIP NOSE GRBX1 and
ENGINE 1 lights illuminate.
Noncorrectable
Instructor: #2 NOSE GBX CHIP
#2 NOSE
Metal chips detected in
22516
GBX CHIP
No. 2 nose gearbox pump.
appears on CRT.
Trainee: CHIP NOSE GRBX2 and
ENGINE 2 lights illuminate.
22517
Noncorrectable
Instructor: GBX VIBRATION
GBX
Gearbox vibrates.
VIBRATION
appears on CRT.
Trainee: MASTER CAUTION and
VIB GRBX lights illuminate at
both cockpits. Directional
controls vibrate.
COOLING
22518
Intermediate and tail
Instructor: COOLING FAN
Noncorrectable
FAN
gearbox cooling fan
appears on CRT.
failure.
Trainee: TEMP TR and TEMP
INT lights illuminate in
both cockpits.
