1.1   Aircraft equipment

Commercial air transport aircraft operating in the airspace of Hungary have to adhere to the provisions of ICAO Annex 6 - Operation of Aircraft - Part 1, Chapter 6 - Aeroplane Instruments, Equipment and Flight Documents - and Chapter 7 - Aeroplane Communication and Navigation Equipment, and Commission Regulation (EU) No 965/2012 of 5 October 2012 laying down technical requirements and administrative procedures related to air operations pursuant to Regulation (EC) No 216/2008 of the European Parliament and of the Council.

1.2   Minimum flight altitudes

The AMAs depicted on chart ENR 6-LHCC-ERC have been determined so as to ensure at least 1 000 FT vertical clearance above the highest obstacle.

When determining the flight altitude, the navigational accuracy which can be achieved on the relevant route segment shall be taken into account, having due regard to the navigational facilities available on the ground and on board of the aircraft.

The minimum flight altitude for IFR flights in uncontrolled airspace is 4 000 FT (1 200 M) AMSL.

1.3   RNAV 5 Contingency Procedures

Prior to and during RNAV or Free Route flights operators shall verify the correct functioning of the aircraft RNAV systems. This includes:

1. the flight route complies with ATC clearance, and
2. the aircraft navigation capability complies with at least RNAV 5 specification.

Subsequent ATC action in respect of that aircraft will be dependent upon the nature of the reported failure and the overall traffic situation. Continued operation in accordance with the current ATC clearance may be possible in many situations. When this cannot be achieved, a revised clearance may be required to revert to VOR/DME navigation. ATC may also provide the aircraft with radar vectors until the aircraft is capable of resuming its own navigation.

Operators of such aircraft, where a failure or degradation is detected before departure, shall not insert designators „S” or „R” in Item 10 of the flight plan. Since such flights require special ATC handling, Item 10 shall contain the designator „Z” and Item 18 of the flight plan shall contain „NAV/RNAVINOP”.

For such aircraft experiencing a failure or degradation of the RNAV system below RNAV 5, the phrase ”UNABLE RNAV DUE EQUIPMENT” shall be included by the pilot immediately following the aircraft call sign, whenever initial contact on the ATC frequency is established.

3.1   Cruising levels

During the en route portion of the flight, the cruising levels selected as prescribed in point 2 above, shall be maintained.

3.2   Communications

All IFR flights leaving the CTR or TIZ shall maintain a continuous listening watch and establish two-way radio communications on the appropriate radio frequency of the FIC.

3.3   Position reports

Aircraft shall make position reports at designated reporting points (if any) and at other occasions, as instructed by FIC.

Irrespective of the applicable rules, the FIC shall be notified:

• if an aircraft is compelled to divert from its flight plan route by more than 5 KM;
• if an estimated time over the FIR boundary is different by + 5 minutes from the one communicated to the FIC earlier;
• if it intends to change from IFR to VFR or vice versa;
• if departing from a non-AFIS aerodrome;

4.1   Area of application

4.2   Flight Procedures

4.3   Airspace Reservation within Budapest CTA

4.4   Flight Planning (Item 15)

4.5   Route Availability Document