ANAC IBAV case studies
ANAC IBAV · Put your knowledge to work in context.
The IBAV (Instrumento Básico de Avaliação de Voos) is a knowledge assessment used within the Brazilian civil aviation training system, administered under the framework of the Agência Nacional de Aviação Civil (ANAC). It is aimed at student pilots and candidates who need to demonstrate a foundation in the theoretical subjects that underpin flight training before or alongside practical instruction. The ANAC IBAV case studies are 6 cases and about 2,509 words.
1Diversion at the Fuel Limit
You are the pilot-in-command of a single-engine turboprop on an IFR flight from Confins (SBCF) to Brasília (SBBR), planned block time 1h20, with 2h50 of fuel on board at engine start. Thirty minutes out, Brasília ATIS reports a thunderstorm over the field, RVR 900 m, and windshear warnings; the tower advises holding is expected.
452 words, about 2 min2Go-Around in Wind Shear
You are flying a twin-engine turboprop on a visual approach to a 1,800 m runway with a 12 kt crosswind and a reported microburst 2 NM from the threshold. At 400 ft AGL, on speed and on glidepath, the airspeed suddenly drops from Vref+5 to Vref-10 and the vertical speed goes from -700 to -1,400 ft/min.
432 words, about 2 min3Takeoff Performance on a Contaminated Runway
You are planning a takeoff in a twin-engine turboprop from a 1,600 m runway at 900 m elevation, OAT 28 °C, QNH 1013. The runway is wet with standing water in patches after rain.
417 words, about 2 min4Night Fatigue and the Approach Decision
You are a commercial pilot on the third consecutive night duty, having reported at 22:00 and now at 04:30 on the fourth sector. You have had about 5 hours of sleep in the last 24 hours and your circadian low is around 04:00-06:00.
398 words, about 2 min5Icing and the Alternate Minimum
You are planning an IFR flight from Porto Alegre (SBPA) to Chapecó (SBCH) at FL180 in a non-FIKI twin turboprop. The area forecast shows an extensive layer of supercooled liquid water between FL120 and FL200, with freezing rain reported at the destination and a temperature of -2 °C at the surface.
445 words, about 2 min6Lost Communications in Controlled Airspace
You are on an IFR flight at FL240 in controlled airspace under radar control when your VHF radio fails completely. You have a transponder with mode C.
365 words, about 2 min