UH-72 AUDIO STUDY - FILE 2: EMERGENCY PR...

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U.H-72 Audio Study - File 2: Emergency P.R...

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U.H-72 Audio Study - File 2: Emergency Procedures the Big 7)

Section 1: Landing Urgency Levels

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Question: Define Land Immediately and give an example situation.

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Answer: Land immediately means the urgency of landing is paramount. Primary consideration is to assure survival of occupants. Landing in water, trees, or other unsafe areas should be considered only as a last resort. Example: double engine failure in flight.

Question: Define Land as Soon as Possible.

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Answer: Land without delay at the nearest adequate site, such as an open field, where a safe approach and landing can be made.

Question: Define Land as Soon as Practicable.

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Answer: The landing site and duration of flight are at the discretion of the pilot. Extended flight beyond the nearest approved landing area where assistance can be expected is not recommended.

Section 2: Single Engine Failure - Hover I.G.E in Ground Effect

Question: In a single engine failure while hovering in ground effect, what is the first critical action?

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Answer: Collective lever - adjust to O.E.I limits or below.

Question: What is the second step in single engine failure hover I.G.E?

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Answer: Landing attitude - establish.

Question: What is the third step in single engine failure hover I.G.E?

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Answer: Collective lever - raise as necessary to stop descent and cushion landing.

Question: After landing following a single engine failure in hover, what is the fourth step?

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Answer: Affected engine - identify.

Question: What is the fifth step after landing from single engine failure in hover?

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Answer: Single engine emergency shutdown - perform.

Section 3: S.E.F H.O.G.E (Single Engine Failure - Hover Out of Ground Effect

Question: In a single engine failure hovering out of ground effect, what is the first priority?

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Answer: Collective lever - adjust to maintain rotor R.P.M.

Question: What is the second action in S.E.F H.O.G.E?

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Answer: Airspeed - increase if possible.

Question: What emergency landing procedures follow S.E.F H.O.G.E?

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Answer: Landing attitude - establish. Collective lever - raise as necessary to stop descent and cushion landing.

Question: After landing from single engine failure O.G.E, what must you do?

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Answer: Affected engine - identify. Then single engine emergency shutdown - perform.

Question: After reaching a safe altitude from S.E.F H.O.G.E, what is step 6?

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Answer: Collective lever - reduce to O.E.I M.C.P or below.

Question: After reducing collective to O.E.I, what is the next step?

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Answer: Affected engine - identify.

Question: After identifying the affected engine at altitude, what is step 8?

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Answer: Single engine emergency shutdown - perform.

Question: What is the final requirement after single engine emergency shutdown during climb?

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Answer: Land as soon as practicable.

Section 4: S.E.F Flight O.R.A.S.L (Single Engine Failure - Flight)

Question: In single engine failure during forward flight, what is step 1?

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Answer: O.E.I flight condition - establish.

Question: In S.E.F flight O.R.A.S.L, what is step 2?

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Answer: Rotor speed - trim to maximum.

Question: In S.E.F flight O.R.A.S.L, what is step 3?

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Answer: Affected engine - identify.

Question: In S.E.F flight O.R.A.S.L, what is step 4?

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Answer: Single engine emergency shutdown - perform.

Question: What is the final action in single engine failure during flight?

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Answer: Land as soon as practicable.

Section 5: Engine Overspeed (C.V-N.A.T-L)

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Question: In an engine overspeed condition, what is the first critical action?

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Answer: Collective lever - raise to maintain N.2 and N.R.O within limits.

Question: In engine overspeed, what is step 2?

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Answer: V.A.R N.R system NORM/Man - check Man.

Question: In engine overspeed, what is step 3?

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Answer: N.2 Trim switch - try to trim N.R.O to 101 percent with matched torque.

Question: If step 3 in engine overspeed is not possible, what is step 4?

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Answer: Affected engine - identify.

Question: If torque trim is not possible, what is the next action?

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Answer: Twist grip affected engine - rotate towards Idle until N.2 and N.R.O stabilize in normal range and F.L.I needles match.

Question: What is the final action after correcting engine overspeed?

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Answer: Land as soon as practicable.

Section 6: Engine Underspeed Obvant - L.S

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Question: In an engine underspeed condition, what is step 1?

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Answer: O.E.I flight condition - establish.

Question: In engine underspeed, what is step 2?

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Answer: Bleed air consumers - off.

Question: In engine underspeed, what is step 3?

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Answer: V.A.R N.R system NORM/Man - check Man.

Question: In engine underspeed, what is step 4?

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Answer: Affected engine - identify.

Question: In engine underspeed, what is step 5?

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Answer: N.2 Trim switch - compensate for N.2 and N.R.O drop and try to match torque.

Question: If torque match is not possible during engine underspeed, what is step 6?

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Answer: Twist grip affected engine - release stop and rotate towards Flight until N.2 and N.R.O stabilize in normal range and F.L.I needles match.

Question: What is step 7 after correcting engine underspeed?

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Answer: Land as soon as practicable.

Question: If no residual torque is available on the affected engine, what is the final action?

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Answer: Single engine emergency shutdown - perform.

Section 7: Transmission Oil Pressure Failure

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Question: In a single engine failure hover I.G.E, what does low X.M.S.N oil pressure indicate?

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Answer: If one transmission oil pressure indication is below 1.0 bar, power reduce and land as soon as practicable.

Question: What is the critical action if Both transmission oil pressures are below 1.0 bar?

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Answer: Land immediately.

Section 8: Autorotation Double Engine Failure)

Question: In a double engine failure, what emergency procedure must be performed?

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Answer: Autorotation - perform immediately.

Question: In autorotation, what is step 1?

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Answer: Collective - reduce to maintain N.R.O within limits.

Question: What is the recommended airspeed for autorotation?

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Answer: 75 K.I.A.S recommended. Maximum range is 90 K.I.A.S. Minimum rate of descent is 60 K.I.A.S.

Question: In autorotation, what is step 3 at approximately 100 feet A.G.L?

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Answer: Double engine emergency shutdown - perform.

Question: In autorotation, what is the flare attitude and when is it executed?

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Answer: At approximately 100 feet A.G.L, establish a flare attitude of 15 to 20 degrees to reduce airspeed, rate of descent, and control N.R.O. At approximately 8 to 12 feet A.G.L, continue flare to approximately 7 degrees.