LAX86LA072

NTSB accident investigation · Cessna 150L · Tucson, AZ · December 19, 1985

Accident · Serious injuriesLimited investigationFinal report
Date
December 19, 1985, 16:00 local (23:00 UTC)
Place
Tucson, AZ
Injuries
1 serious, 1 minor
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N10882Cessna 150L
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19851219065939A
Case key
25042

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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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.

Vortex turbulence encounteredTakeoff - initial climb
Procedures/directives - not followedPilot in commandCause
Judgment - poorPilot in commandCause
Safety advisory - disregardedPilot in commandCause
Improper use of procedurePilot in commandCause
Loss of control - in flightTakeoff - initial climb
In flight collision with terrain/waterDescent - uncontrolled

Analysis

After about a 45 min wait as the number one acft for departure, the controller informed the plt that he could expect an additional 3 min wait because of wake turbulence from a (large) EC-130 acft which was approaching for a touch & go landing. The plt elected to waive the time interval for the wake turbulence separaton, and as the EC-130 passed his position the controller issued the plt a clearance for takeoff. The acft climbed to between 25 and 50 ft AGL and then it encountered the wake turbulence. The acft pitched downward, rolled right and descended until it struck the rwy, 1 minute, 22 seconds after receiving its takeoff clearance.

Aircraft

Registration
N10882
Reported as
Cessna 150L
Category
Airplane
Serial number
15075105
Airframe hours
7,781
Engine
Continental O-200-A, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Usaf, Davis Monthan Aero Club
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · September 1, 1985 · 48 hours before
Departed
DMA · Tucson, AZ
Flight plan
VFR
Airport
AFB · Davis-Monthan, runway 12, 13,200 × ft

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
57
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
96 total · 78 in this make and model · 45 as pilot in command · 11 in the last 90 days · 2 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 4 knots
Visibility
50 statute miles
Lowest ceiling
None
Temperature
64 °F, dew point -0 °F
Altimeter
30.00 inHg
Observed at
DMA

FAA reports on this event · 1

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