19971230039729A

Accident · Destroyed

FAA accident report · Mtsbsi MU-2B-30 · Chicago/West Ch, IL · December 30, 1997

Date
December 30, 1997 · 17:05 local
Place
Chicago/West Ch, IL
Airport
Dupage
Phase of flight
Practice Training Manuevers
Operating rules
General operating rules (Part 91)
Damage
Destroyed
Aircraft
N999WB
NTSB investigation
NTSBCHI98FA074
Reported as
Mtsbsi MU2B30
Reported engine
Garrett TPE3311151A
People aboard
2
Fatal injuries
2
Pilot’s flight hours
1,175 total250 in this make and model13 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

Practice engine out on climbout. Stalled. Spun into ground. Right yoke found upside down may be contributing factor (.4) the airplane departed runway 1L and radar data indicated the airplane maintained about a 110 knot ground speed for 37 seconds as it climbed to 1,400 feet MSL (642 feet AGL) with a 008 degree heading. The last radar 14 seconds later indicated the airplane's heading was 342 degrees and had a 130 knot ground speed. The winds were 290/11. Witnesses reported seeing the airplane flying low and slow, and then it made a turn like a 'barrel roll' to the left before impacting the ground. Examination of the engines and airframe revealed no pre-existent anomalies. The left and right propellers exhibited leading edge damage and chordwise abrasions. The pilot had a total of about 1,175 flight hours with about 250 hours in the type and model aircraft. The copilot had 4,094 total hours, but had 10 hours of turbine time and no flight time in the type and model of aircraft. The pilot had indicated he was practicing simulated single engine failures. The gear was fully retracted. The trim settings were set for a right engine out situation. The flap selector was set to 'up' flaps, but the flaps were found in transit at approximately 2 degrees of flaps. The airplane flight manual indicat ated that during 'engine failure in takeoff-gear fully retracted' stated that the required airspeed before selecting flaps to 5 degrees was 140 KCAS. The pilot's operating handbool stated the flaps take approximately 31 seconds to retract from 20 to 0 flaps, or 21 seconds to retract from 5 to 0 flaps.

As the FAA filed it

PRACTICE ENGINE OUT ON CLIMBOUT. STALLED. SPUN INTO GROUND. RIGHT YOKE FOUND UPSIDE DOWN MAY BE CONTRIBUTING FACTOR (.4) THE AIRPLANE DEPARTED RUNWAY 1L AND RADAR DATA INDICATED THE AIRPLANE MAINTAINED ABOUT A 110 KNOT GROUND SPEED FOR 37 SECONDS AS IT CLIMBED TO 1,400 FEET MSL (642 FEET AGL) WITH A 008 DEGREE HEADING. THE LAST RADAR 14 SECONDS LATER INDICATED THE AIRPLANE'S HEADING WAS 342 DEGREES AND HAD A 130 KNOT GROUND SPEED. THE WINDS WERE 290/11. WITNESSES REPORTED SEEING THE AIRPLANE FLYING LOW AND SLOW, AND THEN IT MADE A TURN LIKE A 'BARREL ROLL' TO THE LEFT BEFORE IMPACTING THE GROUND. EXAMINATION OF THE ENGINES AND AIRFRAME REVEALED NO PRE-EXISTENT ANOMALIES. THE LEFT AND RIGHT PROPELLERS EXHIBITED LEADING EDGE DAMAGE AND CHORDWISE ABRASIONS. THE PILOT HAD A TOTAL OF ABOUT 1,175 FLIGHT HOURS WITH ABOUT 250 HOURS IN THE TYPE AND MODEL AIRCRAFT. THE COPILOT HAD 4,094 TOTAL HOURS, BUT HAD 10 HOURS OF TURBINE TIME AND NO FLIGHT TIME IN THE TYPE AND MODEL OF AIRCRAFT. THE PILOT HAD INDICATED HE WAS PRACTICING SIMULATED SINGLE ENGINE FAILURES. THE GEAR WAS FULLY RETRACTED. THE TRIM SETTINGS WERE SET FOR A RIGHT ENGINE OUT SITUATION. THE FLAP SELECTOR WAS SET TO 'UP' FLAPS, BUT THE FLAPS WERE FOUND IN TRANSIT AT APPROXIMATELY 2 DEGREES OF FLAPS. THE AIRPLANE FLIGHT MANUAL INDICAT ATED THAT DURING 'ENGINE FAILURE IN TAKEOFF-GEAR FULLY RETRACTED' STATED THAT THE REQUIRED AIRSPEED BEFORE SELECTING FLAPS TO 5 DEGREES WAS 140 KCAS. THE PILOT'S OPERATING HANDBOOL STATED THE FLAPS TAKE APPROXIMATELY 31 SECONDS TO RETRACT FROM 20 TO 0 FLAPS, OR 21 SECONDS TO RETRACT FROM 5 TO 0 FLAPS.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.