# Accident 19971230039729A: Mtsbsi MU2B30, Chicago/West Ch, IL, December 30, 1997

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: December 30, 1997, 17:05 local time
- Place: Chicago/West Ch, IL
- Airport: Dupage
- Damage: Destroyed
- Phase of flight: Practice Training Manuevers
- Operating rules: General operating rules (Part 91)
- Location: 41.9500° N, 88.2608° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=41.9500&lon=-88.2608&mi=10
- Aircraft: N999WB, a cancelled registration (https://openairdocs.org/deregistered/N999WB-1998-08-31) (OpenAirDocs)
- Registry model: Mitsubishi MU-2B-30 (registry code 5780410, https://openairdocs.org/model/mitsubishi-mu-2b-30) (OpenAirDocs)
- Reported make and model: MTSBSI MU2B30
- Reported engine: GARRTT TPE3311151A
- People aboard: 2
- Fatal injuries: 2
- Pilot flight hours: 1,175 total, 250 in this make and model, 13 in the last 90 days
- NTSB investigation: [NTSB CHI98FA074](https://openairdocs.org/ntsb/CHI98FA074) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19971230039729A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

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.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CHI98FA074](https://openairdocs.org/ntsb/CHI98FA074), Dec 30, 1997: Mitsubishi MU-2B-30 (N999WB), Wayne, IL, destroyed, 2 fatal. Probable cause: the pilot in command failed to maintain control of the aircraft. A factor was the lack of experience of the pilot and copilot in the type and model of aircraft. An additional factor was the pilot did…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft 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. For accidents, the NTSB's own investigation is the fuller record.

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