Limits Flashcards
Any time an operational limit is exceeded, an appropriate entry shall be made on DA form…
2408-13-1
Entry in 2408-13-1 shall state what limit or limits____,____,____ and any additional data that would aid maintenance personnel in the maintenance action that may be required.
Were exceeded, range, time beyond limits
The helicopter shall not be ____ until corrective action is taken.
Flown
Red and yellow striped tapes and red read outs indicate the limit…
Above or below which continued operation is likely to cause damage or shorten component life.
Yellow tapes and read outs indicate…
The range when special attention should be given to the parameter the instrument represents.
Green tapes and read outs indicate the…
Normal operating range of the parameter the instrument represents
Maximum rotor speed for emergency rotor breaking is…
76% Nr
Routine stops will be with engines off, Nr below___, and with ___-___ psi applied to stop the rotor in not less than ___ seconds.
40%, 150-180, 12
Operating an engine against the gust lock is…
Prohibited
Minimum rotor break pressure for start is ___.
Maximum rotor break pressure for start is ___.
450, 690
Use of the rotor brake with engine operating is restricted to ___ and ___ engine starts at operations at ___ only.
Single, dual, idle
If oil pressure is not steady during steady state forward flight or in level hover, or if oil pressure (Xmsn)is steady but under ___ psi, make an entry on the appropriate maintenance form. Sudden pressure drop (more than ___ psi) without fluctuation requires an entry on the appropriate maintenance form.
45, 10
Torque Limits
10 second transient
Dual Engine
Above 80knots 100-144%
80 or below 120-144%
Single 135-144%
Continuous
Single 0 - 135%
Dual
Above 80 knots 0-100%
80 or below 0 -120%
NG
12 second transient 105-106%
Continuous 0-105%
TGT
Normal 0-793 C 30 min 793-846 10 min. 846-879 Start abort 851 2.5 min transient 879-903 12 s transient. 903-949
