Crash of a Swearingen SA226T Merlin IIIB in Winslow: 2 killed

Date & Time: Apr 23, 2021 at 1519 LT
Operator:
Registration:
N59EZ
Flight Phase:
Flight Type:
Survivors:
No
MSN:
T-394
YOM:
1981
Location:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
2
Circumstances:
The twin engine aircraft departed Scottsdale Airport with two pilots on board. En route, in unclear circumstances, the aircraft went out of control and crashed in an isolated area located in the region of Winslow, bursting into flames. Both occupants were killed.

Crash of a Swearingen SA226T Merlin IIIB in Farmingdale

Date & Time: Jun 20, 2016 at 1758 LT
Operator:
Registration:
N127WD
Flight Type:
Survivors:
Yes
Schedule:
White Plains - Farmingdale
MSN:
T-297
YOM:
1978
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
11450
Captain / Total hours on type:
410.00
Copilot / Total flying hours:
1300
Copilot / Total hours on type:
5
Aircraft flight hours:
4500
Circumstances:
According to the pilot in command (PIC), he was conducting an instructional flight for his "new SIC (second in command)," who was seated in the left seat. He reported that they had flown two previous legs in the retractable landing gear-equipped airplane. He recalled that, during the approach, they discussed the events of their previous flights and had complied with the airport control tower's request to "keep our speed up." During the approach, he called for full flaps and retarded the throttle to flight idle. The PIC asserted that there was no indication that the landing gear was not extended because he did not hear a landing gear warning horn; however, he was wearing a noise-cancelling headset. He added that the landing gear position lights were not visible because the SIC's knee obstructed his view of the lights. He recalled that, following the flare, he heard the propellers hit the runway and that he made the decision not to go around because of unknown damage sustained to the propellers. The airplane touched down and slid to a stop on the runway. The airplane sustained substantial damage to the fuselage bulkheads, longerons, and stringers. The SIC reported that the flight was a training flight in visual flight rules conditions. He noted that the airspace was busy and that, during the approach, he applied full flaps, but they failed to extend the landing gear. He added that he did not hear the landing gear warning horn; however, he was wearing a noise-cancelling headset. The Federal Aviation Administration Aviation Safety Inspector that examined the wreckage reported that, during recovery, the pilot extended the nose landing gear via the normal extension process. However, due to significant damage to the main landing gear (MLG) doors, the MLG was unable to be extended hydraulically or manually. He added that an operational check of the landing gear warning horn was not accomplished because the wreckage was unsafe to enter after it was removed from the runway. The landing gear warning horn was presented by an aural tone in the cockpit and was not configured to be heard through the pilots' noise-cancelling headsets. When asked, the PIC and the SIC both stated that they could not remember who read the airplane flight manual Before Landing checklist.
Probable cause:
The pilot-in-command's failure to extend the landing gear before landing and his failure to use the Before Landing checklist. Contributing to the accident was the pilots' failure to maintain a sterile cockpit during landing.
Final Report:

Crash of a Swearingen SA226T Merlin III in Andorra

Date & Time: Apr 26, 2016 at 1535 LT
Operator:
Registration:
N125WG
Flight Type:
Survivors:
Yes
Schedule:
Alicante - Andorra
MSN:
T-250
YOM:
1974
Country:
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
4
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
4750
Captain / Total hours on type:
1200.00
Circumstances:
The twin engine airplane departed Alicante-Mutxamel Airport at 1221LT on a private flight to Andorra, carrying four passengers and one pilot. Following an uneventful flight at an altitude of 12,500 feet, the pilot informed ATC about electrical problems then initiated the descent to Andorra. About two minutes later, the electrical system totally failed. The pilot continued the approach to Andorra-La Seu d'Urgell Airport. After touchdown on runway 21, the undercarriage collapsed. The aircraft veered off runway to the right and came to rest in a grassy area. All five occupants evacuated safely and the aircraft was damaged beyond repair.
Probable cause:
It is considered that the accident was caused by an error in the application of the emergency extension procedure of the landing gear following a total failure of the electrical system.
Contributing factors :
- Start a visual flight with a deferred pending repair in the electrical system, specifically with the generator on the right side.
- Lack of recent training and simulation with emergency procedures.
- The versatility of the pilot and diversity of different aircraft types flown.
- The non-activation of the warning light on the left-hand side of the cockpit panel when the electrical system failed about 30 minutes prior to the total exhaustion of all batteries.
Final Report:

Crash of a Swearingen SA226T Merlin IIIB in Teterboro

Date & Time: May 31, 2005 at 1130 LT
Registration:
N22DW
Flight Type:
Survivors:
Yes
Schedule:
Nantucket – Teterboro
MSN:
T-317
YOM:
1979
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
2676
Captain / Total hours on type:
1400.00
Aircraft flight hours:
4698
Circumstances:
During takeoff from the departure airport, as the pilot advanced the throttles, the aircraft made a "sudden turn to the right." The pilot successfully aborted the takeoff, performed an engine run-up, and then took off without incident. The pilot experienced no anomalies during the second takeoff or the flight to the destination airport. As he reduced the power while in the traffic pattern, at the destination airport, the left engine accelerated to 60 percent power. The pilot reported to the tower that he had "one engine surging and another engine that seems like I lost control or speed." The pilot advanced and retarded the throttles and the engines responded appropriately, so he continued the approach. As the pilot flared the airplane for landing, the left engine surged to 65 percent power with the throttle lever in the "idle" position. The airplane immediately turned to the right; the right wing dropped and impacted the ground. Disassembly of the engines revealed no anomalies to account for surging, or for an uncommanded increase in power or lack of throttle response. Functional testing of the fuel control units and fuel pumps revealed the flight idle fuel flow rate was 237 and 312 pounds per hour (pph), for the left and right engines, respectively. These figures were higher than the new production specification of 214 pph. According to the manufacturer, flight idle fuel flow impacts thrust produced when the power levers are set to the flight idle position and differences in fuel flow can result in an asymmetrical thrust condition.
Probable cause:
The pilot's improper decision to depart with a known deficiency, which resulted in a loss of control during landing at the destination airport. A factor was the fuel control units' improper flight idle fuel flow rate.
Final Report:

Crash of a Swearingen SA226T Merlin III in Byers: 1 killed

Date & Time: Dec 19, 1997 at 2017 LT
Registration:
N950TT
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Front Range - Aspen
MSN:
T-225
YOM:
1973
Location:
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Captain / Total flying hours:
3316
Captain / Total hours on type:
479.00
Aircraft flight hours:
6599
Circumstances:
The pilot departed Front Range Airport (elevation 5512 feet) at approximately 2008, climbed to 7,000 feet msl, accelerated to 270 knots, and requested his IFR clearance. Weather at the time of N950TT's departure was 500 feet overcast; witnesses reported the tops of the thin cloud condition were 8,500 feet msl and it was very dark on top (no stars or moon). The pilot made several changes in airspeed and climb rate until radar indicated that he had entered an 8,500 fpm decent. The pilot reported to ATC that he had 'stalled' the airplane. Radar indicated that he then climbed at 7,500 fpm until his estimated airspeed was 10 knots, and then subsequently descended again at 8,400 fpm until he impacted the frozen ground. The pilot had flown 4 times for 7 hours in the previous 40 days. Five airline pilots, each of who had 3,000 to 5,000 hours in Swearingens, stated individually that even though the airplane is single pilot certified, they believed that 'its a two pilot airplane--because the work load is too high.'
Probable cause:
The pilot inadvertently stalling the airplane and his subsequent spatial disorientation which prevented him from maintaining airplane control. Factors were excessive workload on the pilot and the dark night light conditions.
Final Report:

Crash of a Swearingen SA226T Merlin III in Ushuaia

Date & Time: Apr 4, 1996 at 1350 LT
Operator:
Registration:
LV-WLW
Flight Type:
Survivors:
Yes
Schedule:
Río Grande – Ushuaia
MSN:
T-230
YOM:
1973
Country:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
On final approach to Ushuaia Airport, following an uneventful cargo flight from Río Grande, the twin engine aircraft collided with a flock of birds. The windshield was broken and the left engine lost power. The crew was able to continue the approach and landing. After touchdown, the aircraft went out of control and collided with a snow wall. Both pilots escaped with minor injuries and the aircraft was damaged beyond repair.
Probable cause:
Bird strike on final approach.

Crash of a Swearingen SA226T Merlin III in Chino

Date & Time: Sep 18, 1995 at 0624 LT
Registration:
N693PG
Flight Type:
Survivors:
Yes
Schedule:
Apple Valley - Chino
MSN:
T-207
YOM:
1970
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
3282
Captain / Total hours on type:
346.00
Aircraft flight hours:
5218
Circumstances:
During arrival at dawn, the pilot contacted Approach Control about 22 miles from the airport at 8,500 feet and requested an ILS runway 26 approach. The ATIS was reporting 1/8 mile visibility with fog; the minimum published visibility for the ILS landing was 3/4 mile. The controller vectored the aircraft so that it intercepted the ILS localizer at the outer marker at an intercept angle that was 5 degrees greater than the maximum allowable intercept of 30 degrees. The intercept point should have been at least 3 miles further away from the airport. The aircraft was 650 feet above the ILS glideslope at the outer marker (which was outside the ILS glideslope parameter). Instead of making a missed approach, the pilot elected to continue the ILS. As he attempted to intercept the glideslope from above, the airplane entered a high rate of descent and passed through the glideslope. The pilot was arresting the descent, when the airplane collided with level terrain about 1,000 feet short of the runway. After the accident, at 0646 edt, the visibility was 1/16 mile with fog.
Probable cause:
The pilot's improper IFR procedure by not initiating a missed approach at the outer marker, by attempting to intercept the glideslope from above after passing the outer marker, and by allowing the airplane to continue descending after reaching the decision height. Factors relating to the accident were: the adverse weather condition, and the approach controller's improper technique in vectoring the airplane onto the ILS localizer.
Final Report:

Crash of a Swearingen SA227TT Merlin IIIC in Bristol: 4 killed

Date & Time: Apr 1, 1993 at 2128 LT
Operator:
Registration:
N500AK
Survivors:
No
Schedule:
Knoxville - Bristol
MSN:
TT-527
YOM:
1983
Crew on board:
1
Crew fatalities:
Pax on board:
3
Pax fatalities:
Other fatalities:
Total fatalities:
4
Captain / Total flying hours:
19105
Captain / Total hours on type:
235.00
Aircraft flight hours:
2294
Circumstances:
N500AK encountered icing in flight before start of ILS approach. Radar data showed that before reaching outer marker, it slowed in a manner that was consistent with a power reduction (or partial loss of power), then it entered a steep descent and crashed. Examination revealed engines were not operating at impact and that propellers had been feathered. No preimpact part failure or malfunction of engines, propellers or anti-ice system was found. There was evidence that engine inlet anti-ice annunciator lights and stability augmentation system (SAS) fault warning light were illuminated during impact. The engine manufacturer reported that flameouts had occurred in other aircraft, during or following operation in icing conditions, sometimes after descent into warmer air. Flight manual noted that if icing was encountered with anti-ice system off, select continuous ignition and then select engine and propeller heat (1 engine at a time, ensuring first engine was operating satisfactorily before selecting second engine) and engage sas heat. All four occupants were killed.
Probable cause:
Failure of the pilot to follow procedures concerning use of the engine inlet anti-ice system and/or continuous ignition while operating in icing conditions, which resulted in probable ice ingestion and loss of engine power; and the pilot's failure to maintain sufficient airspeed while coping with the engine problem, which resulted in a stall. Factors related to the accident were: darkness, icing conditions, and engine inlet (nacelle) ice.
Final Report: