ERA13CA375

NTSB accident investigation · Mark C Pauls RV-7A · Cortland, NY · August 25, 2013

Accident · Minor injuriesData collectionFinal report
Date
August 25, 2013, 15:22 local (19:22 UTC)
Place
Cortland, NY
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N411AKMark C Pauls RV-7A
Defining event
Approach-VFR go-around: Loss of engine power (partial)
Weather
Visual (VMC) · Day
Status
Completed · report November 19, 2013
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FSDO/FAA
FAA report
20130825016839A
Case key
87860

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

A partial loss of engine power during go-around due to incorrect maintenance of the fuel system by the pilot/builder.

Findings · 2

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.

Engine fuel and control: fuel controlling systemAircraft › Aircraft power plant · Incorrect service/maintenancePauls Mark C RV-7A: 1 caseAll aircraft: 59 casesProbable cause
Maintenance: replacementPersonnel issues › Task performance · Owner/builderPauls Mark C RV-7A: 1 caseAll aircraft: 70 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 also the owner/builder of the amateur-built experimental airplane. He had removed and reinstalled the engine after the airplane experienced a propeller strike. The accident flight was the first flight after the engine was reinstalled. According to the pilot, he performed high-speed taxi runs, followed by a normal takeoff. After takeoff, the pilot climbed to altitude and confirmed the flight controls were functioning properly. He then entered the airport traffic pattern and on his first attempt to land, he performed a go-around. On his second attempt to land, the pilot reported that everything seemed normal, but he was fast on the approach and decided to add power for another go-around. The engine didn’t respond, so he proceeded straight ahead and secured the engine. The airplane landed past the departure end of the runway in a grassy area. The nose wheel dug into the ground and the airplane nosed over and came to rest inverted. Postaccident examination by Federal Aviation Administration Inspectors revealed substantial damage to the fuselage and the castle nut that attached the throttle arm to the fuel servo was missing a cotter pin.

Factual narrative

The pilot was also the owner/builder of the amateur-built experimental airplane. He had removed and reinstalled the engine after the airplane experienced a propeller strike. The accident flight was the first flight after the engine was reinstalled. According to the pilot, he performed high-speed taxi runs, followed by a normal takeoff. After takeoff, the pilot climbed to altitude and confirmed the flight controls were functioning properly. He then entered the airport traffic pattern and on his first attempt to land, he performed a go-around. On his second attempt to land, the pilot reported that everything seemed normal, but he was fast on the approach and decided to add power for another go-around. The engine didn’t respond, so he proceeded straight ahead and secured the engine. The airplane landed past the departure end of the runway in a grassy area. The nose wheel dug into the ground and the airplane nosed over and came to rest inverted. Postaccident examination by Federal Aviation Administration Inspectors revealed substantial damage to the fuselage and the castle nut that attached the throttle arm to the fuel servo was missing a cotter pin.

Aircraft

Registration
N411AK
Reported as
Mark C Pauls RV-7A
Category
Airplane, amateur-built
Serial number
71945
Airframe hours
83
Engine
Lycoming IO-360, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Mark C Pauls
Registered owner
Mark C Pauls
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · July 6, 2013 · 0 hours before
Departed
N03 · Cortland, NY
Destination
N03 · Cortland, NY
Airport
N03 · Cortland County Arpt, runway 24, 3,400 × 75 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
55
Injuries
Minor
Certificates
Private, Commercial
Airplane ratings
Single-engine land
Instrument ratings
Helicopter
Medical
Class 3, With waivers/limitations
Last flight review
August 15, 2013
Seat
Left
Flight hours
2,115 total · 83 in this make and model · 5 in the last 90 days · 5 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 54 °F
Altimeter
30.31 inHg
Observed at
ITH, 12 nm away

Docket · 6

The files NTSB released with the investigation on November 4, 2013, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.1 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.