GAA18CA051

NTSB accident investigation · Cessna 182H · Tucson, AZ · November 12, 2017

Accident · No injuriesData collectionFinal report
Date
November 12, 2017, 12:30 local (19:30 UTC)
Place
Tucson, AZ
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Taxi
Aircraft
N8515SCessna 182H
Defining event
Taxi: Ground collision
Weather
Visual (VMC) · Day
Status
Completed · report May 14, 2018
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20171112018709A
Case key
96348

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

On this page

Probable cause

The pilot’s failure to use taxiways shown on the airport diagrams and his subsequent failure to avoid a ditch.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Use of equip/info: use of available resourcesPersonnel issues › Task performance · PilotCessna 182H: 1 caseAll aircraft: 41 casesProbable cause
Terrain: rough terrainEnvironmental issues › Physical environment · Effect on operationCessna 182H: 1 caseAll aircraft: 442 cases

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot reported that, after he refueled his airplane, he was cleared by the tower controller to the runway. He added that, as he taxied west toward taxiway Delta, the asphalt was very rough, and he did not see the taxiway to his left nor the unmarked drainage ditch immediately in front of him. The airplane entered the ditch travelling about 5 knots. Postaccident examination of the airplane revealed substantial damage to the empennage. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. Review of the accident airport diagram revealed that the area around the ditch was not a depicted taxiway. Further review of satellite imagery revealed that there were two access points to taxiway Delta southwest of the refueling point.

Factual narrative

The pilot reported that after he refueled his airplane, he was cleared by the tower controller to runway 21. He added that as he taxied west toward taxiway delta, the asphalt was very rough, and he did not see the taxiway to his left, nor the unmarked drainage ditch immediately in front of him. The airplane entered the ditch travelling about 5 knots. A postaccident examination of the airplane revealed substantial damage to the empennage. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. A review of the accident airport diagram revealed that the area around the ditch was not a depicted taxi way. A further review of satellite imagery revealed that there were two access points to taxiway delta southwest of the refueling point.

Aircraft

Registration
N8515S
Reported as
Cessna 182H (H)
Category
Airplane
Serial number
18256615
Built
1965
Airframe hours
4,000
Engine
Continental O470, 230 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 2, 2017
Departed
San Quintin
Destination
TUS · Tucson, AZ
Flight plan
VFR
Airport
TUS · Tucson Intl
Equipment
Auto-pilot

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
78
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Without waivers/limitations
Last flight review
March 28, 2016
Flight hours
2,290 total · 100 in this make and model · 2,031 as pilot in command · 16 in the last 90 days · 1 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 34 °F
Altimeter
30.06 inHg
Observed at
KTUS, 1 nm away

Docket · 4

The files NTSB released with the investigation on March 28, 2018, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.7 MB in all.

FAA reports on this event · 1

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