MIA92LA009

NTSB accident investigation · Lake LA-4 · Panama City, FL · October 10, 1991

Accident · Minor injuriesLimited investigationFinal report
Date
October 10, 1991, 14:32 local (19:32 UTC)
Place
Panama City, FL
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N25PALake LA-4
Weather
Visual (VMC) · Day
Status
Completed · report April 27, 1993
Report
Approved by Office Director
FAA report
19911010045619A
Case key
33018

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

Loss of power due to undetermined reasons. Contributing to the accident was the cfi's inadequate emergency procedures following the reported loss of power.

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 powerApproach - vfr pattern - downwind
Reason for occurrence undeterminedCause
In flight collision with objectDescent - emergency
Emergency procedure - inadequatePilot in commandFactor
Object - tree(s)
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - ground

Analysis

While on the downwind leg after the student positioned the propeller control to the high RPM position, the CFI stated that he heard a loud noise & the eng experienced a loss of power. The CFI took control of the acft, immediately initiated a descent, positioned the propeller control to the low RPM position, but never looked at the eng instruments. While descending the acft collided with trees, then came to rest inverted on the ground. The acft was examined which revealed fuel quantity sufficient to sustain eng operation. The eng was removed for further examination which revealed no evidence of pre-impact failure or malfunction. The prop & prop governor were removed for exam which revealed no evidence of preimpact failure or malfunction. No determination could be made as to the reason for the reported loss of power.

Aircraft

Registration
N25PA
Reported as
Lake LA-4
Category
Airplane
Serial number
427
Airframe hours
1,253
Engine
Lycoming O-360-A1A, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Panama Aviation
Registered owner
Panama Aviation
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 2, 1991 · 6 hours before
Airport
PFN · Panama City-Bay County

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
67
Certificates
Flight instructor, Airline transport
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Right
Flight hours
15,900 total · 510 in this make and model · 15,300 as pilot in command · 90 in the last 90 days · 20 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Visibility
8 statute miles
Lowest ceiling
None
Temperature
75 °F

FAA reports on this event · 1

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