DEN06LA076

NTSB accident investigation · Piper PA-46-350P · Del Norte, CO · May 12, 2006

Accident · No injuriesLimited investigationFinal report
Date
May 12, 2006, 16:45 local (22:45 UTC)
Place
Del Norte, CO
Injuries
4 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N41827Piper PA-46-350P
Weather
Visual (VMC) · Day
Status
Completed · report November 29, 2006
Report
Approved by Office Director
Parties
FAA Flight Standards District Office
FAA report
20060512007779A
Case key
63691

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's failure to maintain airspeed, resulting in an inadvertent stall and impact with terrain during a power-on landing. Contributing factors were the pilot's improper recovery from a bounced landing, and windshear.

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.

Hard landingLanding - flare/touchdown
Power on landing
Airspeed - lowCause
Altitude - low
Stall - inadvertentPilot in commandCause
Weather condition - windshearFactor
In flight collision with terrain/waterLanding - aborted
Recovery from bounced landing - improperPilot in commandFactor
Go-around - attemptedPilot in command
Gear retraction - initiatedPilot in command
Terrain condition - ditch

Analysis

The pilot had been taught to fly a "high and hot final" approach. He made his final approach to runway 26 at 85 KIAS (knots indicated airspeed) with 2 notches of flap deployed. When the airplane was about a mile from the runway, the engine "barked." The pilot enrichened the mixture slightly and the engine ran smoothly. When the airplane was about 150 yards from the runway threshold, it "fell," or began to sink excessively in a nose high attitude. The pilot attributed this sudden descent to windshear. The airplane "landed hard and bounced." The pilot retracted the landing gear (because there was a ditch ahead and he thought it would be better to hit the ditch with the landing gear up) and added power to abort the landing. The airplane touched down again, swerved 90 degrees, and skidded to a halt on the dirt. Post-accident examination revealed no airplane or engine discrepancies. ASOS-observed weather, recorded 36 miles southeast of the accident site, indicated the wind was from 240 degrees at 11 knots, gusting to 15 knots.

Factual narrative

On May 12, 2006, approximately 1645 mountain daylight time, a Piper PA-46-350P, N41827, piloted by a private pilot, was substantially damaged during a hard landing at Del Norte Municipal and County Airport (8V1), Del Norte, Colorado. Visual meteorological conditions prevailed at the time of the accident. The personal cross-country flight was being conducted under the provisions of Title 14 Code of Federal Regulations Part 91 without a flight plan. The pilot and 3 passengers on board the airplane were not injured. The flight originated at Fort Worth Meacham International Airport (FTW), Fort Worth, Texas, approximately 1330 central daylight time.

According to a telephone interview with an FAA inspector and a written statement submitted along with his accident report, the pilot said he had been taught to fly a "high and hot final" approach. He said he made his final approach to runway 26 at 85 KIAS (knots indicated airspeed) with 2 notches of flap deployed. When the airplane was about a mile from the runway, the engine "barked." The pilot said he enrichened the mixture slightly and the engine ran smoothly. When the airplane was about 150 yards from the runway threshold, it "fell," or began to sink excessively in a nose high attitude. The pilot attributed this sudden descent to windshear. The airplane "landed hard and bounced." The pilot said he retracted the landing gear (because there was a ditch ahead and he thought it would be better to hit the ditch with the landing gear up). He said the landing gear did not retract. He added power to abort the landing, but the engine did not respond. The airplane touched down again, swerved 90 degrees, and skidded to a halt on the dirt.

A pilot-witness told the FAA inspector that the wind was about 5-10 knots down the runway with no gusts. He said there were some convective clouds in the area. He saw the airplane on a long, low final approach, and the engine was at a high power setting. The witness did not hear any unusual noises from the engine. When the airplane was just short of the runway, it began to sink excessively in a high pitch attitude. It landed "very hard" about 200 feet beyond the runway threshold, and rolled on its nose wheel ("wheel barrowing"). He witness heard power applied "as if the pilot was attempting a go-around." The engine sounded like it was producing "good" power. After the hard landing and bounce, he saw the landing gear retracting. The airplane touched down again and went off the right side of the runway about 2,400 feet from the threshold. It swerved 90 degrees to the right and came to rest facing north.

An airline transport pilot-witness watched as the airplane turn onto a 5-mile final approach. The approach appeared to him to be normal and stable. "At 25 feet agl (above ground level), the aircraft pitched up and began a very high rate of descent." The witness said the airplane hit the ground first with its left, then the right, then nose gear. He said the airplane did not bounce. He heard power added "in an attempt to go-around.." The airplane "accelerated down the runway, but [the pilot] was unable to maintain directional control," and the airplane went off the right side of the runway.

The FAA inspector reported finding ground impact marks about 200 feet past the runway threshold. "After one bounce of about 200 feet horizontally (as measured by tire tracks) it came back onto the runway and began a slow swerve to the right," departing the runway 2,400 feet from the threshold. The inspector reported finding right wing leading edge damage. Both main landing gears appeared to be nearly retracted. The nose gear could not be seen. The top portion of the left main gear strut protruded through the top of the left wing. A metal post was impaled in the left horizontal stabilizer. All three composite propeller blades were cracked.

On May 31, 2006, the airplane and engine was examined at Beegles Aircraft Aervice, Greeley, Colorado. No discrepancies were noted.

On April 25, 2006, mechanics changed the airplane's oil change and conducted an engine mount inspection to comply with Piper Service Bulletin 1103B. They found a broken engine mount. The break was "clean" and consistent with an overload failure. The engine mount, which had been installed on October 2, 2002, and was replaced with a newer, stronger, and redesigned engine mount as suggested by the service bulletin.

According to Pan Am International Flight Academy- SimCom, the pilot took initial Malibu/Mirage training in 2000, and recurrency training in 2001. He did not attend their academy in 2002. The last time he attended their recurrency training was in May 2003.

ASOS-observed weather, recorded 36 miles southeast of the accident site, indicated the wind was from 240 degrees at 11 knots, gusting to 15 knots.

Aircraft

Registration
N41827
Reported as
Piper PA-46-350P
Category
Airplane
Serial number
4636308
Airframe hours
1,018
Engine
Lycoming TIO-540-AE2A, 350 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Registered owner
Boenker, Boenker, Wansing and Dill, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 1, 2006 · 4 hours before
Departed
FTW · Fort Worth, TX
Destination
8V1 · Del Norte, CO
Airport
8V1 · Del Norte Municipal & County, runway 26, 3,775 × 49 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
52
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Without waivers/limitations
Last flight review
May 1, 2003
Seat
Left
Flight hours
1,691 total · 735 in this make and model · 34 in the last 90 days · 15 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 11 knots, gusting 15
Visibility
10 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 16 °F
Altimeter
30.06 inHg
Observed at
ALS, 32 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.