CHI01LA072

NTSB accident investigation · Cessna 172P · Prairie Du Sac, WI · January 21, 2001

Accident · No injuriesLimited investigationFinal report
Date
January 21, 2001, 16:25 local (22:25 UTC)
Place
Prairie Du Sac, WI
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N53118Cessna 172P
Weather
Visual (VMC) · Day
Status
Completed · report November 1, 2001
Report
Approved by Office Director
Parties
FAA-Milwaukee FSDO
Case key
51389

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 improper trim setting and the pilot failed to maintain control of the airplane. A factor was the snowbank.

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 - on ground/waterTakeoff
Trim setting - not followedPilot in commandFactor
Aircraft control - not maintainedPilot in commandCause
On ground/water encounter with terrain/waterTakeoff - roll/run
Terrain condition - snowbankFactor
Nose overTakeoff - roll/run

Analysis

The student pilot reported that he planned to practice solo soft-field takeoffs, short-field takeoffs, and normal landings. It had been over two months since he had practiced those takeoff procedures. He reported that during the takeoff roll from a hard surface runway, the nose shot "... straight up, very fast and very high in front of me. This was totally unexpected to me." He reported the airplane started veering to the left and he applied right rudder, but he did not release the back pressure on the yoke. He reported he realized that he did not have the airplane under control and he pulled the throttle to idle. The airplane impacted a snow bank on the left side of the runway and nosed over. He reported he discovered that the airplane had been trimmed nose up.

Factual narrative

On January 21, 2001, at 1625 central standard time, a Cessna 172P, N53118, operated by Wisconsin Aviation, Inc., was substantially damaged when it veered off runway18 (2,940 feet by 32 feet, asphalt dry) at Sauk-Prairie Airport, Prairie Du Sac, Wisconsin. The solo student pilot was practicing short-field takeoffs when the airplane veered off the runway. The airplane hit a snow bank and nosed over. The student pilot was not injured. The fight originated from Madison, Wisconsin, at 1555. Visual meteorological conditions prevailed and no flight plan was filed.

The student pilot reported that he planned a solo practice of soft-field takeoffs, short-field takeoffs, and normal landings. He reported that it had been over two months since he had practiced those takeoff procedures.

He reported he executed a solo soft-field takeoff, and it was the first time that he had conducted one by himself. He reported that he put in ten degrees of flaps and pulled the yoke back into his chest. He applied full power and tightened the friction lock. He reported that during the takeoff roll the nose shot "... straight up, very fast and very high in front of me. This was totally unexpected to me." He reported the airplane started veering to the left and he applied right rudder, but he did not release the back pressure on the yoke. He reported he realized that he did not have the airplane under control and he pulled the throttle to idle. The airplane impacted a snow bank on the left side of the runway and nosed over. He reported he evacuated the airplane without being injured. He reported he discovered that the airplane had been trimmed nose up.

The student pilot reported that the accident could have been prevented by the following steps:

1. Follow proper procedures for the soft-field takeoff technique. Namely for me, release the back pressure on the yoke as the plane accelerates and moves into ground effect. Hold ailerons level near the ground.

2. Be wary of false confidence in my skills. Know the technique. Practice beforehand with a CFI.

3. Remember the before-takeoff checklist. For me: the trim setting.

4. Know that when the takeoff is going badly, reduce power and nose back down: reject takeoff.

5. Realize that a narrow runway in a vast white field is a tough place to practice this technique.

Aircraft

Registration
N53118
Reported as
Cessna 172P
Category
Airplane
Serial number
17274688
Airframe hours
7,656
Engine
Lycoming O-320-D2J, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Wisconsin Aviation Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · November 24, 2000 · 84 hours before
Departed
MSN · Madison, WI
Airport
91C · Sauk-Prairie Airport, runway 18, 2,940 × 32 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
33
Injuries
None
Certificate
Student
Medical
Class 3, With waivers/limitations
Seat
Left
Flight hours
63 total · 13 in this make and model · 13 as pilot in command · 25 in the last 90 days · 3 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
21 °F, dew point 10 °F
Altimeter
30.29 inHg
Observed at
MSN, 21 nm away