Crash of a Britten-Norman BN-2A-27 Islander off Tauranga

Date & Time: Dec 28, 2006 at 1000 LT
Type of aircraft:
Operator:
Registration:
ZK-WNZ
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Tauranga - Hamilton
MSN:
278
YOM:
1971
Country:
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The pilot was ferrying the aircraft from Tauranga to a Hamilton maintenance facility when one of the engines failed. The pilot elected to turn back to Tauranga but, shortly after, the remaining engine failed. The pilot carried out a forced landing into a tidal estuary. The aircraft incurred substantial damage to the nose landing gear. Subsequent CAA safety investigation determined that on an earlier flight, the aircraft's electrical system incurred a defect that rendered several electrical components unserviceable, including the two tip/main fuel tank selector valves. No engineering inspection or rectification ensued and the operator ferried the aircraft from Great Barrier Island unaware that the engines were being fed from the tip tanks only. The operator departed Tauranga for Hamilton under similar circumstances, reaching the vicinity of the Kaimai Ranges when the tip tanks became empty.
Probable cause:
Fuel exhaustion.

Crash of a Douglas DC-3C on Mt Ngatamahinerua: 23 killed

Date & Time: Jul 3, 1963 at 0909 LT
Type of aircraft:
Operator:
Registration:
ZK-AYZ
Flight Phase:
Survivors:
No
Site:
Schedule:
Whenuapai – Tauranga
MSN:
15204/26649
YOM:
1944
Flight number:
NZ441
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
20
Pax fatalities:
Other fatalities:
Total fatalities:
23
Captain / Total flying hours:
6639
Captain / Total hours on type:
5687.00
Copilot / Total flying hours:
10014
Copilot / Total hours on type:
6694
Aircraft flight hours:
18629
Circumstances:
While descending to Tauranga Airport in poor weather conditions, the twin engine aircraft struck the slope of Mt Ngatamahinerua located 30 km west of Tauranga Airport. The aircraft was destroyed and all 23 occupants were killed.
Probable cause:
A strong downward current in the lee of the Kaimai Range close to the Gordon quarry. This downward current carried the aircraft below the level of the crests of the range, where under the conditions prevailing at the time, the aircraft encountered an area of extreme turbulence in which it was impossible for the pilot to regain effective control and recover height. Contributory causes:
a) The captain of the aircraft was unaware of his true position and initiated a premature descent. However, it must be appreciated that he decided to descend only to the level officially designated as the minimum safe altitude in the area of his descent.
b) The decision of the Civil Aviation authorities to classify the Kaimai Range as non-mountainous terrain for the purpose of determining the safe altitude for the route.
c) The misleading forecast of the upper wind between Whenuapai and Tauranga.
Final Report:

Crash of a Lockheed 10A Electra in Tauranga

Date & Time: Apr 19, 1948 at 1520 LT
Type of aircraft:
Operator:
Registration:
ZK-AGJ
Survivors:
Yes
Schedule:
Auckland – Tauranga – Gisborne
MSN:
1127
YOM:
1937
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
10
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The twin engine aircraft christened 'Kahu' left Auckland Airport at 1435LT bound for Gisborne with an intermediate stop in Tauranga. On final approach, the crew encountered poor weather conditions with thunderstorm activity and strong winds. The aircraft lost height and crashed in the Waipu Bay, less than 200 yards from the runway threshold. All 12 occupants were rescued while the aircraft was damaged beyond repair.
Crew:
A. C. Harris, pilot,
G. E. Bruce, copilot.
Probable cause:
Caught by downdraft on final approach.

Crash of a Simmonds Spartan in Tauranga

Date & Time: Aug 16, 1936
Type of aircraft:
Registration:
ZK-ABL
Flight Phase:
Flight Type:
Survivors:
Yes
MSN:
39
YOM:
1929
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Crashed in unknown circumstances. There were no casualties.