Chapter 5 - LIMITATIONS Flashcards
The minimum crew required for maintenance ground runs [engine(s) running] is …
a Maintenance Test Pilot occupying the PLT’s station
A technical observer may be authorized to occupy the CPG crew station during ground runs…
at the discretion of the commander.
Nr
110 MAX (>110 red) 106-110 Transient Operation (yellow) 106 High Rotor Warning Annunciated 95-105 Normal Operation (green) 0-94 Transient Operation (yellow)
At what percent Nr is “ROTOR RPM HIGH” announced?
106
What is the [NOTE] associated with ENG oil PSI and cold starts?
It is normal for ENG OIL PSI to exceed limitations on the first start of the day; do not advance PWR LVR until after 5 min at idle and until OIL PSI can remain below limits throughout advancement
ENG OIL PSI
120 MAX (>120 red w/box) 23-120 Normal Operation (green) 23 MIN (
HYD PSI
> 3410 Transient - permitted for 5 sec (yellow) (>=5s red w/box)
3310-3400 Transient - permitted for 5 min (yellow) (>=5m red w/box)
2750-3300 Normal Operation (green)
1260 - MIN (
ENG STARTER LIMITATIONS
61F / 16C and below
2 (3min) 2 (30min)
[S (60s) S (3min) S (60s) S (30min) …]
ENG STARTER LIMITATIONS
Above 61F / 16C
2 (30min)
[S (60s) S (30min) …]
Dual ENG Starts are _______ due to _____.
prohibited
insufficient IPAS air
(ATS) A starting cycle is defined as ___________.
the interval from start initiation and acceleration of the output drive shaft, from zero rpm, to starter dropout.
(ATS) The ___ delay between start attempts applies when __________ and it applies regardless of _________. If motoring is required for an EMER, ________.
60s
What must be done anytime an operational limit is exceeded?
An appropriate entry shall be made in DA Form 2408-13-1; entry will state limit exceeded, duration and range, plus any info that will assist maintenance
When EMER HYD button is pressed ON, at what PSI will the ability to articulate flight controls be lost? Why?
1650
Nitrogen pre-charge. At 1650 the accumulator HYD sleeve is empty; no fluid to push through the system
(ATS) What is the interval between start cycles?
60 seconds