ANZ B773 at Auckland on Jan 27th 2023, runway excursion on landing

Last Update: May 29, 2025 / 15:47:26 GMT/Zulu time

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Photo of ANZ Air New Zealand ZK-OKN, Boeing 777-300 — ANZ Air New Zealand ZK-OKN, Boeing 777-300 (Photo credit: Transport Pixels / Flickr / License: CC by)

Incident Facts

Date of incident
Jan 27, 2023

Classification
Incident

Cause
Runway excursion on landing

Airline
ANZ Air New Zealand

Flight number
NZ-124

Departure
Melbourne, Australia

Destination
Auckland, New Zealand

Aircraft Registration
ZK-OKN

Aircraft Type
Boeing 777-300

ICAO Type Designator
B773

Airport
Auckland International Airport, Auckland

Airport ICAO Code
NZAA

An ANZ Air New Zealand Boeing 777-300, registration ZK-OKN performing flight NZ-124 from Melbourne,VI (Australia) to Auckland (New Zealand), landed on Auckland's runway 05R 17:40L (04:40Z) but veered right and left on the runway before vacating the runway at taxispeed via a high speed turn off.

The airline reported the aircraft contacted a number of runway edge lights and damaged them.

According to the NOTAMs indicating the edge lights between taxiways A8 and A9 were damaged and the ADS-B data transmitted by the aircraft the aircraft contacted the right hand edge lights.

The airport reported the runway lights were repaired by about 21:30L, but shortly afterwards the airport became flooded due to torrential rains and needed to be evacuated.

On Jan 29th 2023 New Zealand's TAIC (Transport Accident Investigation Commission) reported they are investigating the loss of control on the ground stating: "The aircraft landed at about 6:50pm at Auckland International Airport during wind gusts and very heavy rain. Shortly after touchdown, the aircraft briefly lost directional control, veered away from the runway centreline, regained control, completed the landing, and taxied the aircraft to the airport terminal. There was damage reported to six runway edge lights and to the aircraft’s undercarriage assembly, including deflation of one tyre. No injuries to passengers or crew were reported."

On May 29th 2025 the TAIC released their final report concluding the probable causes of the occurrence were:

- The flight crew was aware of the prevailing conditions, which were inclement but still suitable for the approach and landing.

- There was a shift in the wind direction and velocity in the final stages of the approach. This resulted in the autopilot applying control inputs to maintain the approach profile and align the aeroplane with the runway.

- The autopilot was disengaged at 67 ft (20 m), when the operator’s procedures suggested disengaging the autopilot at 300–600 ft (90–180 m). The late disengagement was likely because of the inclement weather on the approach.

- When the autopilot was disengaged, the autopilot control inputs ceased, and the flight and pilot controls returned to a neutral position. This resulted in the aircraft rolling to the right and drifting right of the centreline. It is very likely that the pilot flying did not hold the same control inputs set by the autopilot when they disengaged the autopilot.

- The aeroplane veered off the runway as soon as the main landing gear contacted the runway, striking six runway lights and damaging the right main landing gear.

- It was exceptionally unlikely that the rain caused contamination on the runway leading to a loss in directional control and resulting in the runway excursion.

- The frangible runway edge lighting worked as designed.

- The crew proactively reported to the tower a possible runway excursion in response to a low-tyre-pressure indication during the landing roll. In response, the tower closed the runway and had it inspected for foreign object debris.

- The crew approach and landing briefing did not meet the intent of the operator’s guidelines. However, it was exceptionally unlikely that this contributed to the occurrence.

Related NOTAMs:
B0540/23 NOTAMR B0538/23
Q) NZZC/QMRLC/IV/NBO/A /000/999/3700S17448E005
A) NZAA B) 2301270658 C) 2301270720 EST
E) RWY 05R/23L CLSD TO ALL ARRIVING ACFT

B0542/23 NOTAMR B0540/23
Q) NZZC/QMRLC/IV/NBO/A /000/999/3700S17448E005
A) NZAA B) 2301270720 C) 2301270740 EST
E) RWY 05R/23L CLSD TO ALL ARRIVING ACFT

B0534/23 NOTAMN
Q) NZZC/QMRLC/IV/NBO/A /000/999/3700S17448E005
A) NZAA B) 2301270459 C) 2301270600 EST
E) RWY 05R/23L CLSD

B0535/23 NOTAMR B0534/23
Q) NZZC/QMRLC/IV/NBO/A /000/999/3700S17448E005
A) NZAA B) 2301270518 C) 2301270600 EST
E) RWY 05R/23L CLSD FOR ALL ARRIVING TRAFFIC

B0536/23 NOTAMN
Q) NZZC/QLEAS/I /BO /A /000/999/3700S17448E005
A) NZAA B) 2301270525 C) 2301280500 EST
E) RWY 05R, 6 ADJ RWY EDGE LIGHTS U/S BTN TAXIWAYS A8 AND A9

B0538/23 NOTAMR B0535/23
Q) NZZC/QMRLC/IV/NBO/A /000/999/3700S17448E005
A) NZAA B) 2301270558 C) 2301270700 EST
E) RWY 05R/23L CLSD TO ALL ARRIVING ACFT

Metars:
NZAA 271100Z AUTO 06022KT 1700 +RA BCFG FEW008/// BKN026/// OVC055/// 20/20 Q1006 RERA=
NZAA 271030Z AUTO 06014KT 9999 -RA SCT011/// BKN019/// BKN040/// 20/20 Q1007=
NZAA 271000Z AUTO 04014KT 4600 -RA BR BKN013/// BKN023/// 20/20 Q1008=
NZAA 270930Z AUTO 04016KT 9999 BKN011/// BKN050/// 20/20 Q1008=
NZAA 270900Z AUTO 07007KT 290V230 9999 -RA FEW004/// OVC008/// 19/19 Q1008=
NZAA 270830Z AUTO 15011KT 080V200 5000 -RA BR VCTS FEW004/// BKN011/// OVC016/// 18/18 Q1008 RERA=
NZAA 270800Z AUTO 22005KT 170V250 1700 +RA BCFG FEW012/// BKN018/// OVC028/// 17/17 Q1007=
NZAA 270730Z AUTO 30011KT 260V340 0800 R23L/P2000 +RA FG VV011 18/18 Q1007=
NZAA 270700Z AUTO 03011KT 310V080 1400 R23L/2000D +RA BCFG FEW004/// BKN010/// BKN015/// 19/19 Q1008=
NZAA 270630Z AUTO 19005KT 020V010 0800 R23L/1900U +RA FG BKN010/// OVC015/// 19/19 Q1008=
NZAA 270600Z AUTO 28010KT 220V320 1100 R23L/P2000N +RA BCFG OVC007/// 18/18 Q1008=
NZAA 270530Z AUTO 07003KT 3800 +RA BR SCT004/// BKN009/// OVC013/// 19/19 Q1007=
NZAA 270500Z AUTO 10005KT 050V140 1800 +RA BR SCT016/// BKN028/// BKN075/// 19/19 Q1008=
NZAA 270430Z AUTO 05016KT 010V070 5000 RA BR SCT009/// BKN048/// OVC100/// 19/19 Q1008=
NZAA 270400Z AUTO 06022KT 5000 -RA BR SCT010/// BKN060/// BKN095/// 19/19 Q1008=
NZAA 270330Z AUTO 06016KT 8000 -RA BKN010/// BKN015/// 20/20 Q1008=
NZAA 270300Z AUTO 06020KT 5000 RA BR SCT011/// BKN021/// BKN060/// 20/20 Q1009=
NZAA 270230Z AUTO 05020KT 4000 R23L/1400N RA BR FEW010/// BKN020/// OVC095/// 19/19 Q1009=
NZAA 270200Z AUTO 06019KT 6000 RA SCT011/// BKN019/// OVC070/// 20/20 Q1009=
NZAA 270130Z AUTO 06017KT 5000 RA BR SCT008/// BKN017/// BKN033/// 20/20 Q1009 RERA=
NZAA 270100Z AUTO 05015KT 5000 RA BR BKN009/// BKN014/// 20/20 Q1010=