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BAT BUS cause
Battery bus failure
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BAT BUS procedure
- 1. Bus tie switch - Open
- 2. Auxillary battery - On
- 3. Land as soon as possible
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GEN BUS cause
Generator failure
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GEN BUS procedure
- 1. BUS tie switch - NORM
- 2. Land as soon as possible
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PMU FAIL cause
PMU failure
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PMU FAIL procedure
- 1. PCL - Minimum practical for flight
- 2. PMU switch - OFF TO RESET PMU
- 3. IGN, START, and PMU circuit breakers (left front console) - Check and reset if necessary
- 4. PMU switch - NORM (Attempt second reset if necessary) IF PMU RESET IS UNSUCCESSFUL
- 5. PMU switch - OFF
- 6. Land as soon as practical
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GEN cause
Generator failure
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GEN procedure
- 1. Starter switch - NORM (BOTH)
- 2. Generator switch - ON (front or back)
- 3. Generator reset switch - OPEN (BUS TIE and GEN BUS annunciators illuminate)IF GENERATOR REMAINS INOPERATIVE (DC VOLTMETER BELOW 25 VOLTS AND AMMETER DISCHARGING)
- 4. Generator switch - OFF (BOTH)
- 5. Bus tie switch - OPEN (BUS TIE and GEN BUS annunciators illuminate)
- 6. Land as soon as practical
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CKPT PX cuase
Cockpit pressurization failure, pressure exceeds 3.9 psi
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CKPT PX procedure
- 1. Descend - Below 25,000 feet MSL
- 2. Pressurization switch - DUMP below 25,000 feet MSL IF CONDITIONS PERSIS
- 3. Bleed air inflow switch - OFF
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CANOPY cause
Canopy unlocked/unsafe
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CANOPY procedure
- 1. Airspeed - 150 KIAS maximum, avoid abrupt maneuvering
- 2. Descend - Below 25,000 feet MSL
- 3. Pressurization switch - DUMP below 25,000 feet MSL
- 4. Land as soon as possible
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FUEL PX cause
Fuel pressure below 10 psi
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FUEL PX procedure
- 1. Boost pump switch - ONIF FUEL PX ANNUNCIATOR EXTINGUISHES
- 2. Land as soon as possibleIF FUEL PX ANNUNCIATOR REMAINS ILLUMINATED
- 3. Precautionary Emergency Landing (PEL) - Execute
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OIL PX cause
Oil pressure below 40psi above idle, or below 15psi at idle
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OIL PX procedure
- 1. PCL - Use no more than 60% torque, avoid unnecessary PCL movements
- 2. Precautionary Emergency Landing (PEL) - Execute
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OBOGS FAIL cause
OBOGS failure
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OBOGS FAIL procedure
- 1. PCL - Advance
- 2. OBOGS - CHECK (BOTH)
- 2a. OBOGS supply lever - ON
- 2b. OBOGS concentration lever - MAX
- 2c. OBOGS pressure lever - EMERGENCY IF OBOGS FAIL ANNUNCIATOR REMAINS ILLUMINATED: ACCOMPLISH OBOGS INOPERATIVE PROCEDURE
- 1. GREEN RING - PULL (AS REQUIRED)
- 2. OBOGS - OFF (BOTH)
- 3. Descend - Below cabin altitude of 10,000 feet MSL
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CHIP cause
Engine chip detector indicates oil contamination
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CHIP procedure
- 1. PCL - Use no more than 60% torque, avoid unnecessary PCL movements
- 2. Precautionary Emergency Landing (PEL) - Execute
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