Term
Governor failure in cruise
NR drop but stabilizes at low RPM |
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Definition
Lower collective to maintain NR
Check FFCL in flight
- if yes enter autorotation
- FFCL to emergency
- check NG and T4
- set NG to 70%
- adjust collective to RPM 350
- FFCL to RPM 380
- adjust collective and FFCL to maintain level flight at RPM 380
- LAND AS SOON AS PRACTICABLE
- shallow approach at Vy
- adjust collective and FFCL to maintain RPM in upper green
- reduce forward speed keeping FFCL steady
- no hover slow running landing
- after touchdown retard FFCL
- lower collective |
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Term
Governor failure in hover IGE
NR drop but stabilizes at low RPM |
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Definition
- maintain collective
- control yaw
- cushion landing
- FFCL retard |
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Term
Governor failure in hover OGE
NR drop but stabilizes at low RPM |
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Definition
- lower collective full
- forward cyclic to increase speed
- Check FFCL in flight
- apply autorotation |
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Term
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Definition
- do not lower collective
- increase collective to maintain NR in limits
- retard FFCL to set NR in green
LAND AS SOON AS POSSIBLE
landing as in NR drop |
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Term
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Definition
lower collective
surging gone: LAND AS SOON AS PRACTICABLE
if not, check fuel and engine oil pressure
- retard FFCL slightly to exit governor range
- adjust collective to RPM 380
if persists LAND AS SOON AS POSSIBLE
if not LAND AS SOON AS PRACTICABLE
landing as in NR drop
If engine parameters diverge LAND IMMEDIATELY |
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Term
| Loss of tailrotor HIGE or HOGE in H/V |
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Definition
LAND IMMEDIATELY
- FFCL retard
- cushion landing |
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Term
| Loss of tailrotor HOGE out of H/V |
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Definition
- reduce collective
- forward cyclic
- maintain Vy
- collective minimum sideslip
LAND AS SOON AS POSSIBLE |
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Term
| Loss of tailrotor in cruise |
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Definition
- maintain Vy
- collective minimum sideslip
LAND AS SOON AS POSSIBLE
- FFCL retard
- autorotation |
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Term
| Loss of tailrotor control |
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Definition
- adjust IAS to 70 KTS
- press ACCU TST to depressurize TR load compensator
- after 5 sec reset ACCU TST to OFF
- running landing |
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Term
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Definition
- heating/demist off
- EMER SW to OFF
- BAT/EPU to OFF
- DCT/BAT to OFF
- GENE to OFF
- AVIONIC to OFF
ventilate
- consumers OFF
- EMER SW to ON
- BET/EPU to ON
- DCT/BAT to ON
- GENE to ON
still smoke: LAND AS SOON AS POSSIBLE
if DC good isolate and continue flight
if DC bad GENE to OFF
LAND AS SOON AS PRACTICABLE |
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Term
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Definition
- maintain TRQ more than 10%
- read NR on N2
Land as soon as practicable |
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Term
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Definition
| - NR check in green with TQ > 0 |
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Term
| TR/MR hydraulic slide valve seizure in cruise |
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Definition
- collective HYD OFF
- reduce to 40-60 KIAS
- shallow approach, slow running landing
- shutdown |
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Term
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Definition
if it doesn't disappear at high power:
- max available engine power is reduced
if it doesn't appear at low power:
- engine may surge
- avoid abrupt power changes
land as soon as practicable |
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Term
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Definition
let rotor stop before exiting aircraft
aircraft into wind
slight cyclic into wind |
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