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# Melbourne ILS-Z runway 16 Category II and IIIb

> Melbourne ILS-Z runway 16 Category II and IIIb.

## Equipment and certification

**Special aircrew and aircraft certification is required. DME is required.** Use **QNH** and **IMS ILS/DME, 109.7 MHz**, with a **160° inbound course** and **3° glidepath**.

This is the low-visibility continuation of [ILS-Z runway 16](https://www.narev.ai/docs/irl-gym/airports/melbourne/charts/ils-z-or-loc-z-runway-16-part-1.md). Its DME requirement applies even though the standard ILS-Z sheet permits DME or GNSS.

## Approach and glidepath

Enter at **BELTA at or above 3,000 ft**, **11.8 NM IMS DME / 11.6 NM from the threshold**. Follow **160°**. The glidepath passes **AVMEL at 2,230 ft**, **5.7 NM IMS DME / 5.5 NM from the threshold**. Threshold elevation is **432 ft** and reference datum height is **50 ft**.

### Three-degree glidepath checks

Every distance in this table is **to IMS DME**.

| Distance | Path altitude |
| - | - |
| 8.1 NM | 3,000 ft |
| 7.7 NM | 2,880 ft |
| 7 NM | 2,650 ft |
| 5.7 NM | 2,230 ft |
| 5 NM | 2,010 ft |
| 4 NM | 1,690 ft |
| 3 NM | 1,370 ft |
| 2 NM | 1,050 ft |
| 1 NM | 740 ft |

## Holding and speeds

Hold at **BELTA**, inbound **160°**, with **left turns**, **one-minute legs**, a minimum altitude of **4,000 ft** and a **17 NM DME limit**. The entry diagram labels **050°, 230° and 340°**.

Maximum indicated airspeed at **BELTA is 185 kt**. ATC approach-speed ranges are **160–185 kt at BELTA** and **150–160 kt at 5 NM from the threshold**.

Aircraft may be **radar-vectored to final approach**, or **join the procedure from a STAR before the final approach fix**.

## Certified approach minima

These rows apply to aircraft categories **A, B, C and D/Dₗ**, subject to the required aircrew and aircraft certification. RVR is runway visual range, in metres.

| ILS category | Radio-altimeter value | Decision altitude | Height above threshold | RVR |
| - | - | - | - | - |
| II | 93 ft | 532 ft above mean sea level | 100 ft | 300 m |
| IIIb | Not printed on this sheet | Not printed on this sheet | Not printed on this sheet | 75 m |

The Category IIIb row does not print a decision altitude or radio-altimeter value; do not infer a value from the blank fields.

## Alternate minima

The chart prints **special alternate minima of 700 ft / 2.5 km** without defining their applicability conditions. Those conditions remain to be added to this draft.

| Aircraft category | Standard alternate ceiling | Visibility |
| - | - | - |
| A and B | 1,206 ft | 4.4 km |
| C | 1,516 ft | 6.0 km |
| D/Dₗ | 1,666 ft | 7.0 km |

## Missed approach

Track **160°** and **climb to 4,000 ft, or as directed by ATC**.

## Frequencies

All frequencies are MHz.

| Service | Frequency |
| - | - |
| ATIS | 114.1 or 118.0 |
| Approach | 132.0 |
| Tower | 120.5 |
| Surface movement | 121.7 |

## Sector altitudes and map reference

The **10 NM minimum sector altitude is 3,300 ft**. The **25 NM MSA**, centred on **ML VOR**, is **4,500 ft in the northern sector** and **3,700 ft in the southern sector**. Boundaries are labelled **R-260° on the west side** and **R-080° on the east side**.

Bearings are magnetic, with **12° east variation**. Elevations are feet above mean sea level. The map scale is **1:500,000**, with a **0–5 NM scale bar**. It covers labelled grid lines **37°30′–37°40′ S** and **144°40′–145°00′ E**. **YMEN is Essendon Airport**, south-east of Melbourne.

The map shows ARBEY arrivals from the north and BOOIN, BOYSE, RAZZI and ALAXO arrivals from the east.

It prints these terrain and obstacle elevations, in feet: **2,365; 2,293; 2,195; 1,604; 1,598; 1,600; 1,468; 949; 1,021; 830; 655; 920; 687; 1,224; 1,171; 906; 948; 892; 691; 1,007; 935; 808; 706; 775; 526; 564; 552; 573; 1,041; 1,096**. Their geographic positions have not yet been fully transcribed into this text.

Chart **MMLII04-186**, revised **19 March 2026**, from the fixed publication cycle effective **3 September 2026**.

Source: © Airservices Australia, [Departure and Approach Procedures](https://www.airservicesaustralia.com/aip/current/dap/), MMLII04-186.


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