NYC03LA154

NTSB accident investigation · Wohlers Falco F.8L · Ashland, OH · July 7, 2003

Accident · Serious injuriesLimited investigationFinal report
Date
July 7, 2003, 13:00 local (17:00 UTC)
Place
Ashland, OH
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N33LWWohlers Falco F.8L
Weather
Visual (VMC) · Day
Status
Completed · report October 28, 2004
Report
Approved by Office Director
Parties
Cleveland FAA FSDO
FAA report
20030707019899A
Case key
57421

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

On this page

Probable cause

A loss of engine power due to the failure of the engine air intake duct tubing, which resulted in a total blockage of the induction inlet duct. A factor related to the accident was the inadequate 100-hour inspection by maintenance personnel.

(This narrative was modified on January 26, 2005.)

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 engine power(total) - mech failure/malfTakeoff - initial climb
Induction air ducting - failureCause
Maintenance,inspection - inadequateOther maintenance personnelFactor
Induction air ducting - blocked(total)
Forced landingDescent - emergency
On ground/water encounter with terrain/waterEmergency landing
Terrain condition - rough/uneven

Analysis

As the airplane was climbing, about 100 feet above the ground, the engine suddenly lost all power. The pilot performed a forced landing to a grass field with the landing gear retracted. Upon touchdown, the airplane slid to a stop and came to rest upright. Examination of the wreckage revealed that the engine air intake duct tubing had lost its internal support spring structure strength, allowing the tube casing to be sucked inward, which restricted the air intake. The most recent annual inspection performed on the airplane was completed on May 10, 2003. According to 14 CFR Part 43 Appendix D - Scope and Detail of Items (as Applicable to the Particular Aircraft) To Be Included in Annual and 100 Hour Inspections, "Each person performing an annual or 100 hour inspection shall inspect (where applicable) components of the engine and nacelle group..."

(This narrative was modified on January 26, 2005.)

Factual narrative

On July 7, 2003, at 1300 eastern daylight time, a homebuilt Falco F.8L, N33LW, was substantially damaged during a forced landing following a total loss of power while departing from the Ashland County Airport (3G4), Ashland, Ohio. The certificated private pilot was seriously injured. Visual meteorological conditions prevailed and a visual flight rules flight plan was filed for the personal flight destined for the Chautauqua County Airport (JHW), Jamestown, New York. The flight was conducted under 14 CFR Part 91.

According to the pilot, as the airplane was climbing, about 100 feet above the ground, the engine suddenly lost all power. The pilot performed a forced landing to a grass field with the landing gear retracted. Upon touchdown, the airplane slid to a stop and came to rest upright.

A Federal Aviation Administration inspector examined the wreckage after the accident and observed that the engine air intake SCAT duct tubing had lost its internal support spring structure strength, allowing the tube casing to be sucked inward, which restricted the air intake.

The most recent annual inspection performed on the airplane was completed on May 10, 2003.

According to 14 CFR Part 43 Appendix D - Scope and Detail of Items (as Applicable to the Particular Aircraft) To Be Included in Annual and 100 Hour Inspections:

"Each person performing an annual or 100 hour inspection shall inspect (where applicable) components of the engine and nacelle group as follows:

(1) Engine section - for visual evidence of excessive oil, fuel, or hydraulic leaks, and sources of such leaks.

(2) Studs and nuts - for improper torquing and obvious defects.

(3) Internal engine - for cylinder compression and for metal particles or foreign matter on screens and sump drain plugs. If there is weak cylinder compression, for improper internal condition and improper internal tolerances.

(4) Engine mount - for cracks, looseness of mounting, and looseness of engine to mount.

(5) Flexible vibration dampeners - for poor condition and deterioration.

(6) Engine controls - for defects, improper travel, and improper safetying.

(7) Lines, hoses, and clamps - for leaks, improper condition and looseness.

(8) Exhaust stacks - for cracks, defects, and improper attachment.

(9) Accessories - for apparent defects in security of mounting.

(10) All systems - for improper installation, poor general condition, defects, and insecure attachment.

(11) Cowling - for cracks, and defects."

(This narrative was modified on January 26, 2005.)

Aircraft

Registration
N33LW
Reported as
Wohlers Falco F.8L
Category
Airplane, amateur-built
Serial number
1
Airframe hours
580
Engine
Lycoming IO-360, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
William Anderson
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · May 10, 2003
Departed
3G4 · Ashland, OH
Destination
JHW · Jamestown, NY
Airport
3G4 · Ashland County Airport, runway 18, 3,502 × 75 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
70
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Seat
Left
Flight hours
355 total

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 14 knots
Visibility
7 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 72 °F
Altimeter
29.96 inHg
Observed at
MFD

FAA reports on this event · 1

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