Aircraft Maintenance. Учебное пособие

Approach Altitude will requ ire careful and thoughtful handling of power, acce l­eration and clean up to avoid an altitude bust.

It may be appropriate to consider continuing down the approach path , if legally permitted, for a few moments whilst the handling of the Go-Around and the configuration is discussed before being actioned. Going around from above the missed approach altitude may require the pilot to level off and maintain their curren t altitude or a modified altitude as instructed by ATC. In congested airspace the missed approach altitude, track and speed is usually mandated. This can be a complicated affair if the Go-Around instruction or deci­sion is made above the mandated missed approach altitude.

Regarding task-sharing during a a manual go-around, the FSF ALAR Briefing Note 6.2  "Manual Go-Around" recommends that:

"The pilot flying (PF) is responsible for controlling vertical navigation and lateral navigation, and for energy management, by ... Flying manually, with flight director (FD) guidance and an adapted (e.g., horizontal situation indicator (HSI) - type) navigation display (ND) mode.

"If manual thrust is selected, the pilot monitoring (PM) should monitor closely the airspeed, airspeed trend and thrust, and call any ex cessive deviation (e.g., airspeed decreasing below VREF).

The briefing note then provides a thorough explanation of the flight dy­namics of a go-around, which is important for understanding the interaction be­tween changes to engine power and flight control settings.

If a Go-Around is flown using F/D crews should be aware of exactly what is being commanded in roll and pitch. For example some F/D will command a heading that maintains aircraft track as at the moment Go Around was initiat ed (which, particularly if correcting localiser deviation at the time, may be very dif­ferent from the required track during the Go Around manoeuvre). Adherence to SOPs will help ensure that appropriate modes are selected to command appropri­ate track and vertical profiles. Particularly after a Non Precision Approach in poor weather, the landing pilot can experience very high workload in tryi ng to manoeuvre the aircraft for landing. The PM plays a vital role in monitoring this phase of the approach and calling for a Go-Around if stabilised approach criteria are not met or if unhappy with the manoeuvre. A good briefing can be very help­ful in setting expectations/ bott om lines to inform these decisions.

"For a safe go-around," the FSF briefing note continues, "the following “three Ps” constitute a golden rule: Pitch: set and maintain the pitch-attitude target Power: set and check the go-around thrust; and, Performance: check aircraft performance: positive rate of climb, airspeed at or above Vref (reference landing speed), speed brakes retracted, radio-altimeter in­dications and barometric-altimeter indications increasing, wings level, gear up, flaps as required.

times as often as others and, when plotted, fit under a normal distribution curve.

Vocabulary

Advisory condition – режим оповещения Alert signal – сигнал предупреждения Ambient type detectors – датчик, измеряющий непосредственное состояние окружающей среды Aural and visual annunciation – звуковое и визуальное оповещение Aural fire warning bell – звуковой сигнализатор о пожаре Aural warn devices box – коробка звуковых сигнализаторов Detector enclos ure – место установки датчика Detector fault panel – панель неисправностей датчиков Dual loop (2 loop) system – двухконтурная система Engine and APU fire control modul e – модуль управления пожаротушением

двигателей

и ВСУ Fire detection and suppression control panel щиток управления системой по- жарообнаружения и пожаротушения Flight crew – экипаж Forward/Aft cargo compartment – передний/задний грузовой отсек LED fault indicator – светодиодный индикатор неисправности Lower cargo compartment – нижний грузовой отсек Master Caution – основной предупреждающий сигнал Normal operation mode – штатный режим Self contained detector – автономный датчик Six Pack annunciator – оповещатель с шестью элементами Smoke DETECTORS – датчики задымления Test switch – кнопка управления Triple redundant system – система с трехкратным резервированием Warning condition – режим предупреждения

x one Control Panel;

x one Detector Fault Panel; x ten Smoke Detectors.

The Aural Warn Devices Box contains the Fire Warning Bell.

operating in 2 loops. The four detectors are installed in two enclosures. Each en­closure contains an A loop and B loop detector. Each detector operates independently of the others and provides the control panel with signals for smoke condition and fault status. In addition, because each de­tector is independent of the others, they can be replaced individually. Each en­closure assembly features guard bars to protect the detectors from cargo and baggage.

annunciations will extinguish, and the system will automatically reset itself to normal mode of operation. A warning is initiated if any two detectors, one from each loop of the same cargo compartment, sends an alert signal to the control panel. A warning condition will result in the following:

portant to note the system design is only intended to suppress the spread of fire long enough to allow the aircraft to safely land and evacuate.