FTW93LA116

NTSB accident investigation · Mooney M20E · Fort Worth, TX · April 3, 1993

Accident · Minor injuriesLimited investigationFinal report
Date
April 3, 1993, 14:40 local (20:40 UTC)
Place
Fort Worth, TX
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N9337MMooney M20E
Weather
Visual (VMC) · Day
Status
Completed · report February 10, 1994
Report
Approved by Office Director
FAA report
19930403007869A
Case key
18720

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

Partial power loss due to improper maintenance and resultant discrepancies. A factor was the lack of suitable terrain.

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(partial) - mech failure/malfTakeoff - initial climb
Maintenance - improperOther maintenance personnelCause
Fuel system,electric boost pump - failure,partialCause
Fuel system,screen - blocked(total)Cause
Fuel system,line - blocked(partial)Cause
Forced landingDescent - emergency
On ground/water collision with objectLanding - roll
Terrain condition - none suitableFactor
Object - tree(s)

Analysis

During initial climb the airplane lost engine power. The airplane had reached an altitude of 50 feet above the ground when the engine began to run rough and the power decreased to a level that would not sustain the climb. The pilot executed a forced landing to available terrain, rough and uneven. An examination revealed that the airplane fuel system was clogged with debris and that the electrical fuel boost pump was not delivering sufficient quantities of fuel during high power settings.

Factual narrative

On April 3, 1993, at approximately 1440 central standard time (CST) a Mooney M20E, N9337M, was substantially damaged during a forced landing near Fort Worth, Texas, following a loss of engine power during the initial climb of a takeoff. The private pilot was not injured during the visual meteorological conditions flight. The airplane was owned and operated by Robert E. Randolph of Fort Worth, Texas.

During an interview with the pilot, conducted by a Federal Aviation Administration (FAA) inspector, he reported that during his initial climb the engine suddenly lost power and he was forced to land in unsuitable terrain. He further reported that he had been practicing touch and go landings. An on scene investigation by the FAA inspector revealed that the airplane had struck trees following the forced landing and damaged both wings. The inspector reported that the left wing lost all contained fuel due to impact damage, however, the right wing retained all fuel. There was evidence of fuel spillage on the ground below the left wing.

Aircraft

Registration
N9337M
Reported as
Mooney M20E
Category
Airplane
Serial number
1269
Airframe hours
4,571
Engine
Lycoming IO-360-A1A, 200 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Dawson, Charles
Registered owner
Dawson, Charles
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 5, 1992 · 72 hours before
Departed
9F9
Airport
9F9 · Sycamore, runway 17, 3,950 × 32 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
42
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
972 total · 735 in this make and model · 940 as pilot in command · 5 in the last 90 days · 1 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
160° at 12 knots
Visibility
7 statute miles
Lowest ceiling
2,100 ft overcast
Temperature
61 °F, dew point 54 °F
Altimeter
29.00 inHg

FAA reports on this event · 1

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