CHI03LA064

NTSB accident investigation · Piper PA-24-180 · Halstead, KS · February 5, 2003

Accident · No injuriesLimited investigationFinal report
Date
February 5, 2003, 17:15 local (23:15 UTC)
Place
Halstead, KS
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N5681PPiper PA-24-180
Weather
Visual (VMC) · Day
Status
Completed · report June 25, 2003
Report
Approved by Office Director
Parties
FAA -- Wichita FSDO
FAA report
20030205002609A
Case key
56479

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

Failure by the flight crew to execute an aborted takeoff when acceleration degraded and the improper soft field takeoff procedure as flown by the private pilot. Contributing factors were inadequate supervision by the flight instructor and the tailwind encountered on takeoff.

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.

In flight collision with terrain/waterTakeoff - initial climb
Aborted takeoff - not performedFlightcrewCause
Soft field takeoff/procedure - improperPilot in commandCause
Supervision - inadequatePilot in command(cfi)Factor
Weather condition - tailwindFactor

Analysis

The aircraft was substantially damaged when it impacted terrain shortly after takeoff. Upon return to the airport after a local flight, they landed to the south and taxied back to the departure end of the runway. The instructor stated that the wind was light, but it was still out of the south, as it had been all afternoon. He noted that a soft field technique was employed on the accident takeoff and the full runway length was used. He stated: "Just over half way down [the] runway -- normal acceleration degraded. We were past abort point and due to dangerous road area elected to fly", although the aircraft was "behind the power curve." After liftoff, the instructor stated the aircraft did not level out very much and was at a relatively high pitch attitude. Initially the aircraft climbed to approximately 40 feet above ground level. However, it settled lower and was "bobbling" in and out of ground effect as they approached the end of the runway. The flight instructor reported that, due to an inability to climb, they were forced to fly under a set of power lines at the end of the runway. The power lines ran along a roadway, which bordered the south side of the airport. He stated that they "could not accelerate" and were "unable to climb." The decision was made to cut the power and impact (landing) was made before reaching more obstructions (trees)." Upon exiting the aircraft, he noted that the wind was now from the north. Both pilots indicated that there were no problems with the aircraft or engine, either prior to, or at the time of the accident. The FAA Airplane Flying Handbook, concerning soft field takeoffs, states: "After becoming airborne, the nose should be lowered very gently with the wheels clear of the surface to allow the airplane to accelerate. ... An attempt to climb prematurely or too steeply may cause the airplane to settle back to the surface as a result of losing the benefit of ground effect."

Factual narrative

On February, 5, 2003, at 1715 central standard time, a Piper PA-24-180 Comanche, piloted by a flight instructor and dual student, was substantially damaged when it collided with terrain shortly after takeoff from runway 17 (2,640 feet x 150 feet, turf) at the Halstead Airport (SN05), Halstead, Kansas. The dual student was a private pilot receiving a complex aircraft checkout and Comanche familiarization. The instructional flight was conducted under the provisions of 14 CFR Part 91 and was not on a flight plan. Visual meteorological conditions prevailed at the time of the accident. The flight instructor and dual student reported no injuries.

According to the flight instructor's statement, the flight originally departed Halstead Airport early on the afternoon of the accident. He noted that they had completed airwork, and touch and goes at Hutchison (HUT) and Kingman (9K8). They departed Kingman at 1635 to return to Halstead.

Upon arrival at Halstead, they landed to the south and taxied back to the beginning of runway 17. The instructor stated that the wind was light and was still out of the south, as it had been all afternoon.

He noted that a soft field technique was employed on the accident takeoff, and that the full runway length was used. He stated: "Just over half way down [the] runway -- normal acceleration degraded. We were past abort point and due to dangerous road area elected to fly", although the aircraft was "behind the power curve."

After liftoff, the instructor stated the aircraft did not level out very much and was at a relatively high pitch attitude. Initially the aircraft climbed to approximately 40 feet above ground level. However, it settled lower and was "bobbling" in and out of ground effect as they approached the runway, according to the instructor.

The flight instructor reported that, due to an inability to climb, they were forced to fly under a set of power lines at the end of the runway. The power lines ran along a roadway, which bordered the south side of the airport. He stated that they "could not accelerate" and were "unable to climb." The decision was made to cut the power and impact (landing) was made before reaching more obstructions (trees)."

Initial impact was on the right wing tip and right main landing gear, according to the instructor. The aircraft came to rest about 1/4 mile south of the airport in a wheat field. Upon exiting the aircraft, he noted that the wind was now from the north.

The instructor noted that SN05 did not have any weather reporting services, although a wind sock was located approximately 1/2 mile from the runway. He reported the runway condition as dry, short grass.

Weather at the scene was reported as overcast with light winds, by the flight instructor. He estimated a tail wind component of 5 ~ 10 knots on takeoff. He stated that after the accident, the wind started picking up out of the north and the temperature got noticeably colder.

Weather conditions reported by the Newton City/County Airport (EWK) automated weather observing station (AWOS), approximately 11 nm east of the accident site, at 1655 were: few clouds at 3,500 feet agl, and wind from 030 degrees magnetic at 9 knots.

Both pilots indicated that there were no problems with the aircraft or engine, either prior to, or at the time of the accident.

The FAA Airplane Flying Handbook, concerning soft field takeoffs, states: "After becoming airborne, the nose should be lowered very gently with the wheels clear of the surface to allow the airplane to accelerate. ... An attempt to climb prematurely or too steeply may cause the airplane to settle back to the surface as a result of losing the benefit of ground effect."

Aircraft

Registration
N5681P
Reported as
Piper PA-24-180
Category
Airplane
Serial number
24-753
Airframe hours
6,225
Engine
Lycoming O-360-A1A, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 28, 2002 · 17 hours before
Departed
9K8 · Kingman, KS
Destination
SN05 · Halstead, KS
Airport
SN05 · Halstead, runway 17, 2,640 × 150 ft, grass/turf

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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
63
Injuries
None
Certificate
Airline transport
Airplane ratings
Single-engine sea, Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Last flight review
July 21, 2002
Seat
Right
Flight hours
23,500 total · 60 in this make and model · 18,000 as pilot in command · 20 in the last 90 days · 10 in the last 30 days · 0 in the last 24 hours
Role
Pilot
Age
49
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Last flight review
May 1, 2002
Seat
Left
Flight hours
250 total · 4 in this make and model · 190 as pilot in command · 4 in the last 90 days · 4 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
30° at 9 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
37 °F, dew point 21 °F
Altimeter
30.05 inHg
Observed at
EWK, 11 nm away

Docket · 2

The files NTSB released with the investigation on May 11, 2003, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.0 MB in all.

FAA reports on this event · 1

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