ERA09CA375

NTSB accident investigation · Waco UPF-7 · Manteo, NC · July 4, 2009

Accident · Minor injuriesData collectionFinal report
Date
July 4, 2009, 12:00 local (16:00 UTC)
Place
Manteo, NC
Injuries
3 minor
Damage
Substantial damage
Phase of flight
Standing
Aircraft
N32132Waco UPF-7
Defining event
Standing-engine(s) operating: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report October 19, 2009
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/ FSDO
Case key
74188

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's improper decision to exit the airplane, with the engine operating. Contributing to the accident was the inadvertent throttle movement by the passenger.

Findings · 4

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.

Parking/securingAircraft › Aircraft handling/service · Incorrect use/operationWaco UPF-7: 1 caseAll aircraft: 11 casesProbable cause
Engine controls: power leverAircraft › Aircraft power plant · Unintentional use/operationWaco UPF-7: 1 caseAll aircraft: 95 casesProbable cause
ActionPersonnel issues › Action/decision · PassengerWaco UPF-7: 1 caseAll aircraft: 111 casesProbable cause

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 was giving scenic rides in the vintage airplane. The airplane was parked on the ramp, with the engine operating, and two passengers seated in the front seat. The pilot stated that he set the parking brake, and exited the airplane to secure a baggage latch, when one of the passengers "bumped" the throttle. The passenger seated in the left front seat stated that he and his wife were escorted to, and seated in the airplane, while the pilot was talking with a passenger from the previous flight. He further stated that he was in the airplane for a few seconds, when he turned, and then heard the engine sound increase. The airplane accelerated across the ramp, and struck a parked airplane. Damage to the airplane consisted of bent left wing struts with the upper left wing bent downward approximately 30 degrees, and a bent left aileron. The passenger further stated that he did not receive any pre-boarding instructions or a pre-flight briefing. Examination of the airplane by a Federal Aviation Administration inspector did not reveal any preimpact mechanical malfunctions. It was noted that the engine controls were located on the left side wall of the cabin.

Factual narrative

The pilot was giving scenic rides in the vintage airplane. The airplane was parked on the ramp, with the engine operating, and two passengers seated in the front seat. The pilot stated he set the parking brake, and exited the airplane to secure a baggage latch, when one of the passengers "bumped" the throttle. The passenger seated in the left front seat stated that he and his wife were escorted to, and seated in the airplane, while the pilot was talking with a passenger from the previous flight. He further stated that he was in the airplane for a few seconds, when he turned, and then heard the engine sound increase. The airplane accelerated across the ramp, and struck a parked airplane. Damage to the airplane consisted of bent left wing struts with the upper left wing bent downward approximately 30 degrees, and a bent left aileron. The passenger further stated that he did not receive any pre-boarding instructions or a pre-flight briefing. Examination of the airplane by a Federal Aviation Administration inspector did not reveal any preimpact mechanical malfunctions. It was noted that the engine controls were located on the left side wall of the cabin.

Aircraft

Registration
N32132
Reported as
Waco UPF-7
Category
Airplane
Serial number
5764
Engine
Continental R-670-6A, 225 horsepower, reciprocating
Damage
Substantial damage
Flight
Other work use · Part 91
Operator
OBX Air Tours
Registered owner
Richard Forbes
Airworthiness certificate
Standard, Normal
Departed
MQI · Manteo, NC
Destination
MQI · Manteo, NC
Airport
MQI · Dare County Regional Airport

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
47
Injuries
Minor
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Flight hours
21,100 total · 5,000 in this make and model · 150 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
300° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 59 °F
Altimeter
30.04 inHg
Observed at
MQI

Docket · 6

The files NTSB released with the investigation on August 27, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.2 MB in all.