Providenciales

The twin engine airplane departed Basseterre-Robert L. Bradshaw Airport in St Kitts & Nevis on a flight to Providenciales, Turks & Caicos Islands (distance 1,116 km). Approaching Cockburn Town (Grand Turk Island), the pilot informed ATC he was shot of fuel and later ditched the airplane offshore. All four occupants were rescued by a fisherman around 15h30. The aircraft sank.

The accident flight was a repositioning flight being operated by two airline transport pilots, and it was the multiengine turboprop airplane's first flight after an aviation maintenance technician (AMT) had replaced the left engine propeller with an overhauled propeller. The AMT subsequently performed an engine run, which included verifying correct power settings and corresponding blade angles. A review of flight data recorder (FDR) data revealed that, about 2 seconds after rotation, the left engine propeller rpm decreased to 60 percent, and the left engine torque increased off-scale (beyond 5,000 ft lbs), which is consistent with the left propeller traveling to the feathered position and the engine torque increasing in an attempt to maintain propeller rpm. About 30 seconds later, the flight crew shut down the left engine and attempted to return to the departure airport. Postaccident examination of the rudder trim actuator revealed that the rudder trim was at its full-right limit, which would have occurred to counteract the left engine drag before its shutdown. Based on this evidence, it is likely that the flight crew did not readjust the trim when the drag was alleviated, which resulted in the airplane being operated in a crosscontrolled attitude for about 50 seconds with a left bank and full-right rudder trim. Although the airplane should have been able to climb about 500 ft per minute with one engine operating, it slowed and descended from 300 ft in the cross-controlled attitude until it stalled, as indicated by a stall warning recorded by the cockpit voice recorder, and subsequently impacted terrain. Examination of the wreckage, including teardown examination of the left engine and propeller, did not reveal any preimpact mechanical anomalies. Review of the airplane maintenance manual revealed instructions to check the propeller reversing linkage on the front end of the engine, which controlled the beta valve, for proper rigging during propeller installation. The manual also contained a warning that misadjustment of the beta valve can cause unplanned feathering of the propeller and result in a possible hazard to airplane operation and over torque damage to the engine; however, the beta valve rigging could not be verified postaccident due to impact damage. Additionally, the ground/flight idle solenoid energizes when weight becomes off wheels and further opens the beta valve, which could exacerbate an existing misrigged condition as soon as the airplane becomes airborne, which is when the airplane experienced the uncommanded propeller feathering. The FDR data were consistent with the flight crew not performing the Before Takeoff (Runup) checklist. One of the items on that checklist was a low-pitch solenoid test, which would have energized the solenoid and possibly driven the left propeller uncommanded to feather during ground operations rather than in flight. A similar test during the post maintenance engine-run would have had the same results.

The aircraft was making a charter flight from Santiago de los Caballeros to New York with an intermediate stop at Mayaguana, Bahamas. The flight departed Santiago-Cibao Airport, Dominican Republic, at 1605LT. Thirty-five minutes later, while cruising off the Turks & Caicos Islands, the pilot sent a brief mayday message and the aircraft crashed 25 km off Providenciales. SAR teams and US Coast Guards did not find any trace of the aircraft nor the 12 occupants. A spokesman from the Dominican Pilots Association later reported that the pilot's licence had been suspended in October 2006.

On July 10, 1993, about 1015 eastern daylight time, a Piper PA-31, N36L, registered to and operated by the Schaked Corporation, experienced total loss of power from both engines due to fuel exhaustion and was ditched about 18 nautical miles south of the Providenciales Airport, Turks and Caicos Islands, while on a personal flight. Visual meteorological conditions prevailed at the time and a VFR flight plan was filed. The airplane has not been recovered and is presumed to be destroyed. The airline transport-rated pilot and commercial pilot-rated passenger sustained minor injuries. The flight originated about 0900 from Cap Haitien, Haiti. The day before the accident flight, the fuel tanks were filled and the airplane was then flown for about 2 hours. After landing, the pilot requested an auxiliary power unit (APU) for the following morning to jump start the engines due to electrical system problems. The pilot further stated that during the airplane preflight, he visually determined that the fuel tanks were 1/2 full. The APU was used to start the engines and about 20 minutes after departure, the electrical system failed. The flight continued and about 44 minutes later, Grand Turk Approach Control was contacted using a hand held radio. A clearance to land was requested and the controller was advised that the airplane was low on fuel. The controller advised the crew that the flight was about 60 miles east of the airport and the Providenciales Airport was about 31 miles north of their position. The flight proceeded directly to that airport and shortly thereafter, the pilot stated that the left engine failed due to fuel exhaustion. About 5 minutes later, the right engine failed due to the same reason. The airplane was ditched and the occupants were rescued about 7 hours after the ditching. According to the pilot-rated passenger, the pilot reset the alternators and voltage regulators after contact was established with the approach control facility.

Crashed in unknown circumstances after takeoff from Cockburn Town Airport. The pilot, sole on board, was killed.