Crash of a Piper PA-31-325 Navajo C/R in Sumter

Date & Time: Aug 1, 2020 at 1000 LT
Type of aircraft:
Operator:
Registration:
C-GXKS
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Manning - Manning
MSN:
31-7512038
YOM:
1975
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
1625
Captain / Total hours on type:
550.00
Aircraft flight hours:
12038
Circumstances:
According to the pilot, he and the copilot were flying low-level mapping flights in the twin-engine airplane. Although the copilot was not multi-engine rated, he and the pilot regularly switched control of the airplane during the mapping flights. On the accident flight, the pilot was seated in the right seat; the copilot was seated in the left seat; and they were flying the airplane at an altitude of about 300 ft above ground level. According to the pilot, they flew for about 2 hours before he, who was the pilot flying at the time, switched fuel tanks from the inboard tanks to the outboard tanks. The pilot did not tell the copilot he had switched fuel tanks. About 1.5 hours later, while the copilot was the pilot flying, the left engine started to surge and lose power. The pilot began the steps of the emergency procedure for an engine failure in cruise flight starting with moving the fuel selectors to the inboard tanks. Power was not restored; the airplane immediately began losing altitude; and the pilot took over control of the airplane. The copilot stated that at the time the pilot took over control, he looked at the fuel tank quantity gauges, and they both displayed zero. The pilot reported that the airplane stalled just above the ground during the emergency landing in a field. The right wing struck first, and within a couple of seconds, the right outboard fuel tank exploded. The pilot and copilot egressed out the rear door. Examination of the wreckage revealed that neither engine exhibited evidence of power at impact. The left outboard fuel tank was found completely full of fuel, and the left inboard fuel tank was empty. Both right wing tanks were fire damaged, and the fuel quantity in the tanks at impact could not be determined. Further examination revealed that the fuel crossfeed valve was in the “crossfeed/open” position. No fuel was observed in the valve or attached fuel lines during disassembly. The left fuel selector valve was found in the “OFF” position, and no fuel was observed within the fuel line between the valve and gascolator. The right fuel selector valve was damaged by fire, and its position at impact could not be determined. No other anomalies were noted in the engines or airframe. According to the pilot, all fuel tanks were full before the flight. According to the pilot’s operating manual, the airplane likely consumed about 33.1 gallons of fuel per hour or a total of about 115 gallons of fuel during the 3.5-hour flight. Given that the inboard fuel cells held 56 gallons each (112 gallons total), that the left inboard tank was found empty, and that the copilot noticed that the fuel gauges were reading zero just before impact, it is likely that each engine was drawing fuel from its respective inboard tank throughout the flight until those tanks were empty. The left engine lost power first, and the right engine likely lost power just before impact. The postaccident positions of the crossfeed valve (on) and the left fuel selector (off) did not correspond to the pilot’s statements regarding his positioning of the fuel selector valves during the flight. The fuel panel was located between and behind the pilots’ seats and required the pilots to look down and back in order to see the panel when making changes to the panel; therefore, it is likely the pilot misconfigured the valves when he switched tanks 2 hours into the flight, when he switched tanks after the left engine lost power, or on both occasions. It is unlikely the copilot would have been able to see an incorrect switch selection on the fuel panel due to the location of the panel, and he would have been unlikely to look at the 2-hour point as the pilot did not verbalize that a change to the panel had been made.
Probable cause:
The pilot’s fuel mismanagement during flight, which resulted in a total loss of engine power from both engines due to fuel starvation.
Final Report:

Crash of a Piper PA-31-310 Navajo in Bogotá: 4 killed

Date & Time: Feb 12, 2020 at 1544 LT
Type of aircraft:
Operator:
Registration:
HK-4686
Flight Phase:
Survivors:
No
Schedule:
Bogotá – Villagarzón
MSN:
31-344
YOM:
1968
Country:
Crew on board:
2
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
4
Captain / Total flying hours:
1890
Captain / Total hours on type:
250.00
Copilot / Total flying hours:
646
Aircraft flight hours:
10251
Circumstances:
Shortly after takeoff from Bogotá-Guaymaral Airport, while in initial climb, the crew informed ATC about the failure of the right engine. He was cleared to return for an emergency and completed a circuit to land on ruwnay 11. On final, the airplane lost height and crashed in a wooded area located about 800 metres short of runway, bursting into flames. The aircraft was destroyed by a post crash fire and all four occupants were killed.
Probable cause:
The investigation determined that the accident was caused by the following probable cause(s):
- Loss of in-flight control as a result of slowing below Minimum Control Speed and drag, generated by the failure of the right engine (No. 2).
- Failure of engine No. 2, due to lack of lubrication, possibly caused by oil leakage through an 11.5 mm fracture, found in one of the sides of cylinder No. 2 at the height of the intake valves.
- Inappropriate application by the crew of the emergency procedure for landing with an inoperative engine, by not declaring the emergency, not feathering the propeller of the inoperative engine and configuring the aircraft early for landing (with landing gear and flaps) without having a safe runway, making it difficult to control the aircraft and placing it in a condition of loss of lift and control.

Contributing Factors:
- Failure of the operator to emphasize in the crew training program the techniques and procedures to be followed in the event of engine failure, among others, the declaration of emergency to ATC, the flagging of the propeller of the inoperative engine, the care in the application of power to the good engine so as not to increase yaw and not to configure the aircraft until landing has been assured.
- Lack of emergency calls by the crew, which denotes deficiencies in the Operator's Safety Management System, and which prevented the early warning of the aerodrome support services and deprived the crew of possible assistance from other aircraft or from the same operator.
Final Report:

Crash of a Piper PA-31-310 Navajo in Limoges

Date & Time: Aug 21, 2018 at 1525 LT
Type of aircraft:
Operator:
Registration:
F-HGPS
Flight Type:
Survivors:
Yes
Schedule:
Limoges - Limoges
MSN:
31-245
YOM:
1968
Country:
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
1250
Circumstances:
The twin engine airplane, owned by IMAO specialized in aerial photo missions, departed Limoges-Bellegarde Airport at 1009LT with one pilot (the Director of the Company, aged 58) and a female operator in charge of the aerial photo program. The goal of the mission was to fly over the sector of Peyrelevade at 7,000 feet then a second sector over Ussel at an altitude of 6,500 feet. Following an uneventful flight, the pilot return to Limoges, contacted ATC and was instructed to recall for a right base leg approach for a landing on runway 03. Two minutes after passing the altitude of 3,000 feet on approach, the pilot informed ATC he was short of fuel and that he was attempting an emergency landing. The airplane impacted trees and crashed in a field located near Verneuil-sur-Vienne, some 3,6 short of runway 03. Both occupants were seriously injured and the aircraft was damaged beyond repair.
Probable cause:
Emergency landing due to fuel exhaustion following a flight of five hours and 15 minutes.
Final Report:

Crash of a Piper PA-31-310 Navajo C on Mt Rae: 2 killed

Date & Time: Aug 1, 2018 at 1336 LT
Type of aircraft:
Operator:
Registration:
C-FNCI
Flight Phase:
Survivors:
No
Site:
Schedule:
Penticton - Calgary
MSN:
31-8112007
YOM:
1981
Location:
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
2
Captain / Total flying hours:
4400
Captain / Total hours on type:
2800.00
Aircraft flight hours:
7277
Circumstances:
On 01 August 2018, after completing 2 hours of survey work near Penticton, British Columbia (BC), an Aries Aviation International Piper PA-31 aircraft (registration C-FNCI, serial number 31-8112007) proceeded on an instrument flight rules flight plan from Penticton Airport (CYYF), BC, to Calgary/Springbank Airport (CYBW), Alberta, at 15 000 feet above sea level. The pilot and a survey technician were on board. When the aircraft was approximately 40 nautical miles southwest of CYBW, air traffic control began sequencing the aircraft for arrival into the Calgary airspace and requested that the pilot slow the aircraft to 150 knots indicated airspeed and descend to 13 000 feet above sea level. At this time, the right engine began operating at a lower power setting than the left engine. About 90 seconds later, at approximately 13 500 feet above sea level, the aircraft departed controlled flight. It collided with terrain near the summit of Mount Rae at 1336 Mountain Daylight Time. A brief impact explosion and fire occurred during the collision with terrain. The pilot and survey technician both received fatal injuries. The Canadian Mission Control Centre received a 406 MHz emergency locator transmitter signal from the occurrence aircraft and notified the Trenton Joint Rescue Coordination Centre. Search and rescue arrived on site approximately 1 hour after the accident.
Probable cause:
Findings as to causes and contributing factors:
1. The pilot did not continuously use oxygen above 13 000 feet and likely became hypoxic as the aircraft climbed to 15 000 feet. The pilot did not recognize his symptoms or take action to restore his supply of oxygen.
2. As a result of hypoxia-related cognitive and perceptual degradations, the pilot was unable to maintain effective control of the aircraft or to respond appropriately to the asymmetric power condition.
3. The aircraft departed controlled flight and entered a spin to the right because the airspeed was below both the published minimum control speed in the air and the stall speed, and because there was a significant power asymmetry, a high angle of attack, and significant asymmetric drag from the windmilling propeller of the right engine.
4. When the aircraft exited cloud, the pilot completed only 1 of the 7 spin-recovery steps: reducing the power to idle. As the aircraft continued to descend, the pilot took no further recovery action, except to respond to air traffic control and inform the controller that there was an emergency.

Findings as to risk:
1. If flight crews do not undergo practical hypoxia training, there is a risk that they will not recognize the onset of hypoxia when flying above 13 000 feet without continuous use of supplemental oxygen.

Other findings:
1. The weather information collected during the investigation identified that the loss of control was not due to in-flight icing, thunderstorms, or turbulence.
2. Because the Appareo camera had been bumped and its position changed, the pilot’s actions on the power controls could not be determined. Therefore, the investigation was unable to determine whether the power asymmetry was the result of power-quadrant manipulation by the pilot or of an aircraft system malfunction.
3. The flight path data, audio files, and image files retrieved from the Appareo system enabled the investigators to better understand the underlying factors that contributed to the accident.
Final Report:

Crash of a Piper PA-31-310 Navajo B near Jardim do Ouro: 2 killed

Date & Time: Jun 27, 2018 at 1430 LT
Type of aircraft:
Registration:
PT-IIU
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Guarantã do Norte – Apuí
MSN:
31-852
YOM:
1972
Country:
Crew on board:
1
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
2
Circumstances:
The twin engine airplane departed Guarantã do Norte on a flight to a remote area located on km 180 on the Transamazonica Road. En route, both passengers started to fight in the cabin and one of them was killed. The pilot was apparently able to kill the assassin and later decided to attempt an emergency landing. He ditched the airplane in the Rio Novo near Jardim do Ouro. The pilot was later arrested but no drugs, no weapons, no ammunition as well a both passengers bodies were not found. Apparently, the goal of the flight was illegal but Brazilian Authorities were unable to prove it.
Final Report:

Crash of a Piper PA-31-310 Navajo B in Ampangabe: 5 killed

Date & Time: Jun 18, 2018 at 0912 LT
Type of aircraft:
Operator:
Registration:
5R-MKF
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Antananarivo - Antananarivo
MSN:
31-756
YOM:
1971
Country:
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
4
Pax fatalities:
Other fatalities:
Total fatalities:
5
Circumstances:
About five minutes after takeoff from Antananarivo-Ivato Airport, the twin engine aircraft went out of control and crashed in an open field located in Ampangabe, some 10 km southwest of the airfield. The aircraft was totally destroyed upon impact and all five occupants were killed. They were engaged in a training flight with one instructor and two pilots under instruction on board.
Crew:
Claude Albert Ranaivoarison, pilot.
Passengers:
Eddie Charles Razafindrakoto, General of the Madagascar Air Force,
Andy Razafindrakoto, son of the General,
Kevin Razafimanantsoa, pilot trainee,
Mamy Tahiana Andrianarijaona, pilot trainee.