DEN83FA090

NTSB accident investigation · Cessna 150M · Kanab, UT · March 31, 1983

Accident · FatalField investigationFinal report
Date
March 31, 1983, 12:38 local (19:38 UTC)
Place
Kanab, UT
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N714MLCessna 150M
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19830331010649A
Case key
15980

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

On this page

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.

In flight collision with terrain/waterCruise - normal
Weather condition - turbulenceFactor
Weather condition - high windFactor
Weather condition - high density altitudeFactor
Weather condition - downdraftFactor
Terrain condition - mountainous/hillyFactor
Terrain condition - risingFactor
In-flight planning/decision - improperPilot in commandCause
Altitude - inadequatePilot in commandCause
Ignition system,spark plug - undertorquedFactor
Engine assembly,valve,intake - leakFactor
Engine assembly,ring - leakFactor
Aircraft performance,climb capability - deterioratedFactor

Analysis

The acft departed page at about 1150. At about 1238 the acft struck the south slope of a 6,280-FT canyon wall at about 6,000 ft MSL. The canyon is one of a series of about five 'finger' canyons forming the vermilion cliffs group. Sigment lima 15 in effect called for occasional severe turbulence below 16,000 ft especially within 50 mi of rough terrain. The area forecast called for occasional moderate trubulence surface to 15,000 ft due to strong westerly winds. A plt who landed at page at 1345 stated his flt was marked by light to occasionally moderate turbulence with frequent sustained up & down drafts. He also stated that during his arrival the winds were 160 deg at 28 mph gusting to 45 mph. Report of engine teardown revealed that none of the sparkplugs were torqued, & the sparkplugs of cyl #4 were only finger-tight. In addition, cyl #1'S exhaust valve leaked, cyl #3'S rings leaked, & cyl #4'S intake valve & rings leaked.

Aircraft

Registration
N714ML
Reported as
Cessna 150M
Category
Airplane
Serial number
15079281
Airframe hours
2,001
Engine
Continental O-200-A, 100 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Thomas Rex Jarrett
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 19, 1983 · 54 hours before
Departed
PGA · Page, AZ
Destination
VGT · Las Vegas, NV
Flight plan
VFR

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
34
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed
Flight hours
347 total · 314 in this make and model · 288 as pilot in command · 64 in the last 90 days · 5 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
220° at 18 knots, gusting 29
Visibility
30 statute miles
Lowest ceiling
5,000 ft broken
Temperature
61 °F, dew point 27 °F
Altimeter
29.00 inHg
Observed at
CDC, 65 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.