Yak 18T - Landing with the Flap Retracted; Pilot Actions in Case of Brake Failure; Pilot Actions in Case of Radio Station Failure; Pilot Actions in Case of Generator Failure

Yak 18T Flight Operations Manual
Page 63 of 82
Disclaimer: This manual is to be used as a reference only, it is based on translated Yak 18T Flight Operations
Manuals and has not been approved by the Yakovlev Design Bureau or any other authority.
11.10. Landing with the Flap Retracted
If the pilot does not extend the split-flap via the main or emergency method, then it is
permissible to perform the landing with the flap retracted. The instrument approach speed
after turn to final must be 150-160km/h. The landing procedure for the flap-up landing does
not actually differ from the flap-down landing. In this case, keep in mind that the gliding
range, time of holding-off and touchdown speed will be somewhat more than during a flap-
extended landing.
11.11. Pilot Actions in case of Brake Failure
1. In case the brakes fail while taxiing-out/taxiing-in, stop the application of brakes, inform
ATC and if possible, shutdown the engine and identify the reason for the failure
2. If brake failure takes place while during a ground run after landing, proceed as follows –
• when the landing run is terminated, inform ATC about the failure and clear the
runway if possible
• CHECK pressure in the main air line when the aircraft is on the taxi-way and if the
pressure is normal, SHUTDOWN the engine and identify the reason for the fault
11.12. Pilot Actions in case of Radio Station Failure
1. In all cases during a radio communication failure, proceed as follows –
• CHECK the plug connections of the headset cord/s; CHECK whether the radio
volume control is in the position for maximum readability
• CHECK that the radio operates via other communication channels
• CHECK whether the circuit breakers (intercommunication system) and (VHF station)
are not switched off
On making sure, that the radio communication system is out of order, stop fulfilment of the
flying mission and land
11.13. Pilot Actions in case of Generator Failure
1. a generator failure can usually be determined by the illumination of a red warning light
GENERATOR FAILURE on the annunciator panel and from readings of the ammeter. The
latter will indicate the appearance of a battery discharge
2. In the case of a generator failure, proceed as follows –
• SWITCH OFF the generator
• DELIVER a radio message to ATC
• in a VFR flight, SWITCH OFF the maximum number of power consumers with the
exception of the circuit breakers: IGNITION, UNDERCARRIAGE, ENGINE
INSTRUMENTS, ELECTRIC TURN INDICATOR, LIGHT BEACON and at night AIR
NAVIGATION EQUIPMENT
• stop the fulfilment of the flying mission and make an alternate airfield landing.
SWITCH ON the radio station transmitter or radio compass for a short time or
alternately, if required
The airborne accumulator provides supply of the power consumers at night conditions during
35-40 minutes, in daytime for 50 minutes with the generator disconnected.