Piaggio P.166 Albatross

Two aircraft, ZS-NJX and ZU-MMI, with 6 and 7 people on board respectively, took off from Tzaneen aerodrome (FATZ) on 14 August 2011 at approximately 0820Z, engaged in private flights with the intention of landing at Rand Airport (FAGM) on the same day. As both aircraft had not arrived at Rand Airport at their expected time of arrival, numerous attempts were made to contact the aircraft and these were unsuccessful. The search and rescue mission was initiated to try and locate these aircraft. The search and rescue mission was based around the area where the aircraft were believed to have had last contact with each other and with other traffic. Unfortunately due to bad weather in and around the area of last contact of these aircraft, they could only be located approximately two days after they had collided with a mountain in the Lekgalametse valley. Both aircraft were destroyed by post-impact fire and all the occupants of both aircraft were fatally injured.

Two aircraft, ZS-NJX and ZU-MMI, with 6 and 7 people on board respectively, took off from Tzaneen aerodrome (FATZ) on 14 August 2011 at approximately 0820Z, engaged in private flights with the intention of landing at Rand Airport (FAGM) on the same day. As both aircraft had not arrived at Rand Airport at their expected time of arrival, numerous attempts were made to contact the aircraft and these were unsuccessful. The search and rescue mission was initiated to try and locate these aircraft. The search and rescue mission was based around the area where the aircraft were believed to have had last contact with each other and with other traffic. Unfortunately due to bad weather in and around the area of last contact of these aircraft, they could only be located approximately two days after they had collided with a mountain in the Lekgalametse valley. Both aircraft were destroyed by post-impact fire and all the occupants of both aircraft were fatally injured.

Shortly after liftoff, while in initial climb, the twin engine aircraft stalled and crashed near the runway end. The pilot was injured and the aircraft was destroyed.

The pilot attended the Bankstown Briefing Office at about 0600 hours. He was briefed concerning the current weather conditions at Bankstown Airport, which were Instrument Meteorological Conditions (IMC) but were Improving to VMC; and the relevant meteorological forecasts which indicated, for his proposed route, that he might experience some difficulty in maintaining flight In Visual Meteorological Conditions (VMC). The pilot's licence was not endorsed to permit him to operate in other than VMC. He then submitted a flight plan for a flight from Bankstown Airport to Warracknabeal and return, proceeding over Marulan the estimated time interval thereto being 33 minutes, the flight to be conducted in accordance with the Visual Flight Rules (VFR) at altitudes not exceeding 5000 feet. The aircraft departed Bankstown Airport, in VMC, and established two way communication with Sydney Flight Service Unit (FSU). At 0748 hours the pilot advised the Sydney FSU that he was "returning to Camden, estimating Camden at one five". In response to a query the pilot advised "weather okay". No further communications were received from the aircraft. At about 0755 hours the aircraft was heard and observed flying in an easterly direction some 20 kilometres north-northeast of Marulan. There was low cloud and some light rain in the area. The aircraft was flying below the cloud base and was at a height of 500 feet to 200 feet above undulating terrain, proceeding towards rugged terrain which was gradually rising. Subsequently the aircraft proceeded over a ridge line out of the sight of witnesses. Shortly thereafter the engine noise ceased abruptly. The police were alerted and search and rescue action was initiated. The wreckage of the aircraft was located some eight hours later. The aircraft had crashed on a heavily timbered 12 degree upslope about 100 feet below a ridge line. At Impact the aircraft was in a nose down attitude and was banked some 45 degrees to the right. The right hand propeller was feathered and the engine had not been operating at impact. The left hand engine had been under power. The landing gear and flaps had been fully retracted. The available evidence Indicates that the gross weight of the aircraft was at or about the maximum permissible all up weight. Examination of the right hand engine revealed massive internal failure which had commenced with the failure of the right hand dowel In the Number 2 main crankcase bearing. It is probable that the dowel failed because of abnormal loads resulting from loss of bearing nip associated with crankcase fretting at the lower through bolt of the Number 2 bearing saddle. It is estimated that the engine had operated some 170 hours since issue of the last maintenance release on 26 October 1976.

The twin engine airplane departed Ysterplaat AFB with a crew of two on a maritime patrol flight. At 1435LT, the crew informed ground that all was ok on board. Four minutes later, he sent a mayday message and reported "we are 40 miles from" before all contacts were lost. SAR operations were conducted but no trace of the aircraft nor both occupants was found.
Crew:
Maj R. C. Carter,
Cpt G. M. Rossouw.

The crew was completing a local training flight at Grottaglie Airport. On final approach, the twin engine airplane went out of control and crashed 2 km short of runway. Both occupants were killed.
Crew:
Maj Lorenzo Fornasiero,
1st Lt Emanuele Ingrassotta.

The crew was apparently performing a positioning flight from Germany to Nice via Milan when the twin engine aircraft struck the slope of Piz Cavardiras (2,959 meters high) located in Graubünden, Switzerland. The wreckage was found few hours later and both crew members were killed.

While cruising over the Swiss Alps at an altitude of 14,000 feet, the crew encountered poor weather and icing conditions. He requested the permission to reduce his altitude when ATC advised the crew to divert to Zurich for a safe landing. This was the last radio transmission. Shortly later, the twin engine aircraft struck the southwestern slope of Mt Oberalpstock (3,328 m high) located at the border between the cantons of Uri and Graubünden. The wreckage was later found about 300 meters below the summit and all six occupants have been killed. It is believed that the crew was probably diverting to Zurich Airport at the time of the accident as the airplane struck the southwestern slope of the mountain. Among the victims were both German speedboat champions Sigrud Knubben aged 23 and Rolf Friedrich Goetze aged 43.

The pilot Geoffrey Wallace was performing a cargo flight from Popondetta to Port Moresby and encountered poor weather conditions en route. At an altitude of 9,400 feet, the twin engine aircraft struck trees and crashed on Mt Owen Stanley. SAR operations were conducted but eventually suspended few days later as no trace of the aircraft nor the pilot was found. In October 1970, while searching for a missing Piper Aztec, the wreckage of the Piaggio was found.