CEN09LA319

NTSB accident investigation · Mileski Zenair · New Hudson, MI · May 24, 2009

Accident · No injuriesLimited investigationFinal report
Date
May 24, 2009, 11:00 local (15:00 UTC)
Place
New Hudson, MI
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N701MWMileski Zenair
Defining event
Landing-flare/touchdown: Hard landing
Weather
Visual (VMC) · Day
Status
Completed · report March 3, 2010
Report
Approved by Office Director
NTSB office
Central Region
Parties
Federal Aviation Administration
Case key
73920

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 improper flare which resulted in a hard landing and subsequent failure of the nose landing gear.

Findings · 4

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Attain/maintain not possibleMileski William ZENAIR CH701: 1 caseAll aircraft: 3,958 casesProbable cause
Performance/control parameters: landing flareAircraft › Aircraft oper/perf/capability · Incorrect use/operationMileski William ZENAIR CH701: 1 caseAll aircraft: 1,285 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The flight instructor and student pilot were returning to the departure airport during an instructional flight. The accident occurred during the first landing attempt, which was piloted by the flight instructor. During the touchdown, the airplane experienced a hard landing, which damaged the nose wheel, and upon the second touchdown the airplane veered off the runway. The flight instructor was providing flight instruction without a current airman medical certificate, and did not have a current flight review.

Factual narrative

On May 24, 2009, at 1100 eastern daylight time, an experimental amateur-built Mileski Zenair CH701, N701MW, impacted trees during landing when the airplane departed runway 07 at Oakland Southwest Airport (Y47), New Hudson, Michigan. Visual meteorological conditions prevailed at the time of the accident. The 14 CFR Part 91 instructional flight was not operating on a flight plan. The student pilot and flight instructor were uninjured. The local flight originated at 1000. The flight instructor stated that he had been teaching skids, slips, glides, a simulated forced landing, and side slip techniques in the local area during the accident flight. The remainder of the instructional fight was to be conducted at Y47 where he was going to first demonstrate a landing on runway 07 (3,128 feet by 40 feet, asphalt). The airplane was configured with full flaps on short final for the landing. The touchdown, which was "disturbed" by wind gusts, was "slightly hard" and in a 10 degree crab. The flight instructor then "reestablished" a wing-low airplane attitude to the left with "slight" right rudder to maintain the runway centerline. After a rollout of 200 feet down and at a speed of 25 mph, the airplane "abruptly" pulled about 40 degrees to the right and departed the runway. The airplane traveled an additional 150 feet before impacting a bush. The flight instructor suspected that the nose wheel may have been bent to the right when the airplane touched down. The student pilot stated that during landing, they experienced "some fairly strong" turbulence that resulted in an altitude loss of about 10 feet and placing the airplane in a "slightly" southeast crab relative to the runway centerline. The airplane touched down while in the crab in what he thought was a "pretty hard landing." The airplane bounced, turned left, touched down again, turned right, and veered off the runway and impacted small trees. The student pilot thought that the nose landing gear was bent during the first touchdown. Damage to the airplane included buckling of the inboard wing sections and fuselage skin at the wing roots. The flight instructor stated that the wind was from 040 degrees at 8 knots and gusts at 15 knots. Three weather observing stations that were 13 and 17 miles from Y47 recorded no wind gusts. Review of the flight instructor’s Federal Aviation Administration (FAA) medical records indicated a history of metastatic malignant melanoma in March 2005, with surgical removal of the middle and lower lobes of his right lung for metastatic melanoma in May 2006, and of the upper lobe of the left lung in January 2007. He had since participated in a clinical study in which some participants received vaccine-based therapy, and had “no evidence of disease recurrence” since that time. His most recent application for airman medical certificate, dated April 3, 2006, was denied for history of metastatic melanoma. The Federal Air Surgeon indicated in March 2009, that he was “willing to reconsider”the pilot’s “request for airman medical certification after January 2010” with the submission of additional follow up information at that time. An FAA Flight Standards District Office inspector interviewed the pilot by telephone in August 2009, at which time the pilot did not note any additional indications of melanoma recurrence and indicated that he continued to swim and run regularly. The FAA medical records also noted a history of diabetes mellitus type II requiring medication (metformin), high blood pressure requiring treatment (lisinopril), high cholesterol requiring treatment (simvastatin), and benign prostatic hypertrophy requiring treatment (tamsulosin). The flight instructor received his last flight review in October 2006.

Aircraft

Registration
N701MW
Reported as
Mileski Zenair (CH701)
Category
Airplane, amateur-built
Serial number
7-4191
Airframe hours
174.4
Engine
Rotax 912 ULS, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Student Pilot
Registered owner
Student Pilot
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · February 28, 2009
Departed
New Hudson, MI
Destination
New Hudson, MI
Flight plan
Unknown
Airport
Y47 · Oakland Southwest Airport, runway 07, 3,128 × 40 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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
78
Injuries
None
Certificates
Commercial, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Last flight review
October 6, 2006
Seat
Right
Flight hours
12,974 total · 3 in this make and model · 11,799 as pilot in command · 13 in the last 90 days · 4 in the last 30 days · 3 in the last 24 hours
Role
Student pilot
Age
58
Injuries
None
Seat
Left
Flight hours
43 total · 3 in this make and model · 0 as pilot in command · 3 in the last 90 days · 3 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
70° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
61 °F, dew point 52 °F
Altimeter
30.10 inHg
Observed at
OZW

Docket · 3

The files NTSB released with the investigation on December 3, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.5 MB in all.