CHI98FA074

NTSB accident investigation · Mitsubishi MU-2B-30 · Wayne, IL · December 30, 1997

Accident · FatalField investigationFinal report
Date
December 30, 1997, 17:05 local (23:05 UTC)
Place
Wayne, IL
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N999WBMitsubishi MU-2B-30
Weather
Visual (VMC) · Night/bright
Status
Completed · report April 15, 1999
Report
Approved by Office Director
FAA report
19971230039729A
Case key
10727

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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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 not follow the proper procedure when the flaps were raised before 140 knots was attained during a simulated single engine failure.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - in flightTakeoff - initial climb
Aircraft control - not maintainedPilot in commandCause
Improper use of procedurePilot in commandFactor
Lack of total experience in type of aircraftPilot in commandFactor
Lack of total experience in type of aircraftCopilot/second pilotFactor
In flight collision with terrain/waterDescent - uncontrolled

Analysis

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 indicated 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 Handbook stated the flaps take approximately 31 seconds to retract from 20 to 0 flaps, or 21 seconds to retract from 5 to 0 flaps.

Factual narrative

History of Flight

On December 30, 1997, at 1703 central standard time, a Mitsubishi MU-2B-30, N999WB, operated by PVS International, Inc., was destroyed when it impacted the ground two miles north of the DuPage Airport, West Chicago, Illinois. The 14 CFR Part 91 flight had departed DuPage Airport on a local training flight and was in the local VFR flight pattern for runway lL. The commercial pilot and the commercial copilot received fatal injuries. Visual meteorological conditions prevailed and no flight plan had been filed. The flight was in contact with the local air traffic control tower at DuPage Airport.

A fuel lineman at the airport reported that he had put fuel in the airplane at approximately 1500 on December 30, 1997. He reported that the pilots had just pulled the airplane out of the hangar and were about to go flying. The fuel log indicated that 184 gallons of Jet A had been put on the airplane.

At 2153 (All times UTC), N999WB (9WB) departed Dupage Airport to the west.

At 2227, 9WB radioed O'Hare Approach and requested the GPS 1L approach at DuPage Airport.

At 2238, 9WB was cleared for the approach and was told to switch to DuPage Tower frequency.

At 2242:02, DuPage Tower cleared 9WB to fly the approach to 1L and cleared 9WB to land.

9WB landed on runway 1L and taxied back to 1L for another takeoff.

At 2248:11, 9WB stated, "And tower, uh, Whiskey Bravo. We'll be, uh, simulated single engine on the takeoff. Circle to land same runway."

At 2248:18, the tower reported, "Mitsubishi Nine Whiskey Bravo, roger. Your option left or right traffic."

At 2249:56, the tower cleared 9WB for takeoff from runway 1L.

At 2250:01, 9WB reported, "Cleared to go, Niner Whiskey Bravo, and we'll be in left traffic."

At 2251:48, 9WB reported, "And tower, we're going to continue upwind here a little bit."

At 2251:52, the tower reported, "Mitsubishi Nine Whiskey Bravo, roger. Runway one left. You're cleared to land."

At 2251:56, 9WB responded, "Cleared to land one left, Niner Whiskey Bravo."

At 2256:25, 9WB reported, "And tower, Whiskey Bravo's on final, full stop."

At 2256:28, tower reported, "Whiskey Bravo is cleared to land runway one left."

At 2256:31, 9WB responded, "Cleared to land one left, Whiskey Bravo."

At 2257:58, the tower stated, "Nine Whiskey Bravo, say your destination."

At 2258:00, 9WB responded, "Nine Whiskey Bravo, would like to take it around, uh, two more times."

At 2258:04, the tower responded, "Nine Whiskey Bravo, no problem, sir. Taxi back."

At 2300:36, 9WB stated, "And tower, Niner Whiskey Bravo. We're ready to go one left."

At 2300:41, the tower stated, "Nine Whiskey Bravo, into position and hold one left. Traffic landing two eight."

At 2300:45, 9WB responded, "Niner Whiskey Bravo, in sight."

At 2301:24, the tower stated, "Nine Whiskey Bravo, left or right turn out approved or left or right traffic, your choice. Runway one left, cleared for takeoff."

At 2301:29, 9WB responded, "Okay, Niner Whiskey Bravo. We'll make it right traffic this time. Cleared to go one left, Niner Whiskey Bravo."

There were no further radio transmissions from 9WB.

Witnesses reported seeing an airplane flying northbound from DuPage Airport. They reported that the airplane appeared to be flying slow and at an altitude between 500 to 1000 feet above ground level (agl). They reported seeing the right wing go up as if turning left to the northwest, but then the airplane "barrel rolled" to the left and continued rolling straight down. None of the witnesses reported seeing the airplane impact the ground due to the trees in the area.

A witness who lived north of the impact site reported that, "As I lost sight of the plane into the trees, I noticed the left wing of the plane tilted upward, after which I heard a crash which sounded much like wood breaking."

One witness reported he heard the airplane fly near his house which was located about 1,000 feet to the east of the accident site. He reported that the airplane sounded very low and very loud. He reported that the airplane noise did not sound normal. He reported that the loud noise made by the airplane continued until the airplane impacted the ground.

The airplane impacted the ground in a small pasture in a residential area. A witness who owned the property reported hearing the airplane as it flew over his house and when it impacted the ground. He reported that he ran out to the pasture to render assistance. He reported there was a heavy smell of fuel in the air. He reported there was a small fire near the right wing. He reported the flame was a single flame and about 10 inches in height. He reported the flame was extinguished with snow.

The witness reported that emergency response vehicles arrived at the scene about two minutes after the accident occurred. Although there was no fire, the fire department put water on the aircraft as a precaution.

Personnel Information

The pilot was a commercially rated pilot with single engine and multi-engine land ratings and a commercial helicopter rating. He held an instrument rating in airplanes. He was a Certified Flight Instructor in single and multiengine airplanes and was also an instrument instructor in airplanes. He was certified as an advanced ground instructor and as an instrument ground instructor.

The pilot's logbooks were not obtained. He had an estimated 1,175 total flight hours. Witnesses reported that he had about 350 flight hours in the MU-2. However, the pilot indicated on a pilot history form he filled out on October 10, 1997, when he went to flight training at Flight Safety, Houston, Texas, that he had a total of 1,175 hours, 866 hours as Pilot in Command, 80 hours in the last six months, and a total of 250 hours in MU-2's.

A witness reported that the pilot had received his private pilot and commercial pilot ratings at Southern Illinois University. The witness reported that the pilot obtained the single engine instructor rating and instrument instructor rating at American Flyers located at DuPage Airport, West Chicago, Illinois.

The pilot obtained his multi-engine instructor (MEI) rating in November, 1997. The pilot's MEI instructor pilot during his MEI training was the copilot of the accident flight. The copilot's logbook indicated that the pilot and copilot had flown together on seven instructional flights between July 9, 1997, and November 13, 1997. The airplane used for the MEI training was a twin engine Gruman Cougar. The pilots had flown together for 10.1 hours in preparation for the pilot's MEI checkride.

The operator of the airplane reported the pilot had started flying in the right seat of the airplane in September 1995. The pilot flew as copilot in order to build flight time and was not paid while flying as copilot. The operator reported that the pilot had flown about 150 hours as copilot. In September 1996, the pilot started to fly as Captain on the MU-2. The operator reported that the pilot had flown 180 to 200 hours as Captain.

The operator purchased a "Full Service" training contract for the pilot through Flight Safety International, Houston, Texas. The full service contract allowed the pilot to obtain his initial ground school and flight simulator training, and subsequent recurrent ground school and simulator training at Flight Safety. The pilot received his initial training in October 1996. The pilot completed his first recurrent course in April 1997. The pilot completed his second recurrent course in June 1997. The pilot completed his third recurrent course on October 10, 1997. While attending Flight Safety, all of the pilot's flight training was conducted in Flight Safety's MU-2 flight simulator. The pilot did not fly with the Flight Safety instructors in an actual airplane. The pilot's most current Biennial Flight Review and Instrument Competency Check was accomp

Aircraft

Registration
N999WB
Reported as
Mitsubishi MU-2B-30
Category
Airplane
Serial number
530
Airframe hours
6,275
Engine
Garrett TPE-331-1-151, 665 horsepower, turbo prop
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Pvs International, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 20, 1997 · 86 hours before
Departed
DPA · West Chicago, IL
Airport
DPA · Dupage, runway 1L, 5,100 × 100 ft, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
28
Certificate
Commercial
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Toxicology
Performed
Flight hours
1,175 total · 250 in this make and model · 866 as pilot in command · 13 in the last 90 days · 3 in the last 30 days

Weather

Conditions
Visual (VMC) · Night/bright
Wind
310° at 7 knots
Visibility
10 statute miles
Lowest ceiling
7,500 ft overcast
Temperature
72 °F, dew point 57 °F
Altimeter
29.00 inHg
Observed at
DPA, 2 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.