DEN89LA158

NTSB accident investigation · Cessna 150M · Bountiful, UT · July 7, 1989

Accident · Serious injuriesLimited investigationFinal report
Date
July 7, 1989, 08:39 local (14:39 UTC)
Place
Bountiful, UT
Injuries
1 serious
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N6318KCessna 150M
Weather
Visual (VMC) · Day
Status
Completed · report April 19, 1990
Report
Approved by Office Director
FAA report
19890707034219A
Case key
17736

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 failed to maintain adequate speed for the turning maneuver (to avoid an obstacle) and inadvertently allowed the aircraft to stall. Contributing factors were: improper uuse of the flaps, high density altitude, and a high obstruction.

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 control - in flightTakeoff - initial climb
Touch-and-go - initiated
Raising of flaps - improperPilot in commandFactor
Weather condition - high density altitudeFactor
Terrain condition - high obstruction(s)Factor
Maneuver - initiated
Airspeed - inadequatePilot in commandCause
Stall - inadvertentPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

After making a touch-&-go landing, the plt began a takeoff with 10 deg of flaps. The flt manual rcmdd takeoffs be made with the flaps fully retracted, except for short field takeoffs or takeoffs on soft or rough fields with no obstacles ahead. The plt stated that after climbing to about 300' AGL, he noted the acft was not climbing properly & that the eng did not seem to be providing full power. He did not check the eng instruments to verify the eng performance. He lowered the nose to accelerate & started a right turn to avoid an obstacle. At about that time, the acft stalled, then crashed before the pilot could recover from a descent. There was evidence the eng was developing power at impact. A teardown of the eng revealed no evidence of a part failure or malfunction. Density altitude at the arpt was aprx 6500'.

Aircraft

Registration
N6318K
Reported as
Cessna 150M
Category
Airplane
Serial number
15077640
Airframe hours
3,403
Engine
Continental O-200-A, 100 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Operator
Hadenbach, Bill, doing business as Spitfire Leasing
Registered owner
Spitfire Leasing
Airworthiness certificate
Standard, Utility
Last inspection
100 hour · May 22, 1988 · 98 hours before
Airport
BTF · Salt Lake Skypark, runway 34, 4,700 × 60 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
44
Certificate
Student
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
37 total · 37 in this make and model · 26 as pilot in command · 13 in the last 90 days · 1 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 5 knots
Visibility
25 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 48 °F
Altimeter
30.00 inHg
Observed at
SLC, 5 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.