CHI04LA245

NTSB accident investigation · Fall Cub · Rockville, IN · August 21, 2004

Accident · Serious injuriesLimited investigationFinal report
Date
August 21, 2004, 13:30 local (18:30 UTC)
Place
Rockville, IN
Injuries
2 serious
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N25MFFall Cub
Weather
Visual (VMC) · Day
Status
Completed · report January 24, 2005
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20040821027989A
Case key
60019

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

The fuel starvation encountered due to the builder's inadequate fuel system design and the subsequent loss of engine power during a maneuver for the landing approach. Factors were the tree and corn.

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 powerManeuvering
Fuel system - inadequateOwner/builderCause
Fluid,fuel - starvationCause
Forced landingEmergency descent/landing
In flight collision with objectEmergency descent/landing
Object - tree(s)Factor
In flight collision with terrain/waterEmergency descent/landing
Terrain condition - cropFactor
Terrain condition - ground

Analysis

The experimental amateur-built airplane sustained substantial damage on impact with terrain during a forced landing at a private airstrip following an in-flight loss of engine power. The pilot and passenger were hospitalized with serious injuries. The pilot's accident report stated, "I flew a 3-4 hundred foot pass down runway (W to E) at a fairly low power setting to assess the strip and its condition. As I started a [right hand] turn to go west so that I could go back to land east, the engine quit (it windmilled). ... I turned sharply west to at least land in cornfield [and] possibly runway. ... [The airplane] was settling, however and [left] gear drug thru top of 75' tree slowing me considerably. [The airplane] hit corn slightly nose down in flat attitude." Concerning the loss of engine power, the pilot stated, "Engine quit - fuel starvation, I feel caused by unporting fuel pickups." The pilot's safety recommendation was, "Fuel system need to be reevaluated, possibly rerouting fuel lines from tanks, adding a fuel pump (gravity fed) and/or more fuel pickup points. [Approximately] 12 gal. of fuel showed on fuel sight [glasses] at time engine quit."

Factual narrative

On August 21, 2004, about 1330 eastern standard time, an experimental amateur-built Fall Cub, N25MF, sustained substantial damage on impact with terrain during a forced landing at a private airstrip following an in-flight loss of engine power near Rockville, Indiana. The personal flight was operating under 14 CFR Part 91. Visual meteorological conditions prevailed at the time of the accident. No flight plan was on file. The pilot and passenger were hospitalized with serious injuries. The flight originated from Post-Air Airport (7L8), near Indianapolis, Indiana, about 1300, and was maneuvering for an approach to the private airstrip at the time of the loss of engine power.

The pilot's accident report stated:

Left 7L8 (Indianapolis home base) at about 13:00 EST ... . Had not

landed at this strip with this [airplane] yet (required Phase I hours

had just been flown off) so I flew a 3-4 hundred foot pass down

runway (W to E) at a fairly low power setting to assess the strip and

its condition. As I started a [right hand] turn to go west so that I

could go back to land east, the engine quit (it windmilled). There

was no possible place to land going [East], so I again checked tanks

to 'both on' [and] fuel gauges 6-7 gal/side in [main fuel tanks]. I turned

sharply west to at least land in cornfield [and] possibly runway.

Pumped throttle again, engine surged briefly and I thought I could

make field. [The airplane] was settling, however and [left] gear

drug thru top of 75' tree slowing me considerably. [The airplane]

hit corn slightly nose down in flat attitude. No fire.

A Federal Aviation Administration Inspector examined the wreckage. During the examination he observed that no fuel was present in the carburetor. No pre-impact anomalies were found.

Concerning the loss of engine power, the pilot stated, "Engine quit - fuel starvation, I feel caused by unporting fuel pickups."

The pilot's safety recommendation was, "Fuel system need to be reevaluated, possibly rerouting fuel lines from tanks, adding a fuel pump (gravity fed) and/or more fuel pickup points. [Approximately] 12 gal. of fuel showed on fuel sight [glasses] at time engine quit."

Aircraft

Registration
N25MF
Reported as
Fall Cub
Category
Airplane, amateur-built
Serial number
5
Engine
Lycoming O-360, 190 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Martin Kenric Fall
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · July 17, 2004
Departed
7L8 · Indianapolis, IN
Destination
Rockville, IN
Airport
PVT, runway 27, 1,800 × 75 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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
59
Injuries
Serious
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Last flight review
April 1, 2004
Seat
Front
Flight hours
5,000 total · 45 in this make and model · 60 in the last 90 days · 45 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
0° at 0 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 57 °F
Altimeter
30.05 inHg
Observed at
HUF, 30 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.

Other investigations on N25MF · 1

Matched to the same aircraft by N-number and date.