SCENARIO STUDY
Review every check ride and simulator scenario in depth
All
ā Normal Operations
š„ Engine Failures & Fire
šØ Emergency Procedures
š” Instrument Approaches
ā System Abnormals
š„ CRM Scenarios
Unreliable Airspeed
š« Scenario Setup
Climb through FL290. PF airspeed reads 310 KIAS. PM airspeed reads 220 KIAS. Standby shows 265 KIAS. No single trustworthy indication.
š„ Failure Injection
Airspeed disagreement between PFDs and standby. Inconsistent readings ā all different.
š§ MEMORY ITEMS ā 30 Second Standard
ā These items MUST be performed from memory BEFORE opening the QRH. No reference permitted.
- CALL: Unreliable Airspeed
- AP / AT ā DISCONNECT
- PITCH + POWER ā reference table
- CROSSCHECK ā GPS groundspeed, Mach, standby
- QRH ā Unreliable Airspeed
- DECLARE EMERGENCY
š Required Actions (Sequence)
- Call 'Unreliable Airspeed'
- Disconnect autopilot and autothrottle
- Reference pitch attitude + power table for phase of flight
- Crosscheck with GPS groundspeed adjusted for winds
- Mach number crosscheck
- QRH: Unreliable Airspeed checklist
- Maintain controlled flight ā trust attitude and power
- Descend to lower altitude where airspeed more reliable
- Declare emergency; request vectors for ILS
ā Evaluation Points
- Pitch + power table referenced immediately
- Do not trust any single airspeed indicator
- Autothrottle disconnected
- Altitude maintained while diagnosis occurs
- Emergency declared
ā Common Errors (UNSAT)
- Trusting one airspeed indicator without cross-check
- Continuing autothrottle engaged
- Pulling or pushing to chase an unreliable speed reading
- Not declaring emergency
š What the Instructor / Examiner Watches For
TIMING STANDARDS
- O2 masks: within 10 seconds
- Emergency descent: within 30 seconds
- MAYDAY call: during descent
- Squawk 7700: immediate
AUTOMATIC UNSATISFACTORY
- O2 masks not donned first
- Descent below 10,000 ft ignoring terrain
- TCAS RA ignored or reversed
- GPWS hesitation