ERA13CA164

NTSB accident investigation · Piper PA-25-235 · Groveland, FL · March 13, 2013

Accident · Minor injuriesData collectionFinal report
Date
March 13, 2013, 13:30 local (17:30 UTC)
Place
Groveland, FL
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N7329ZPiper PA-25-235
Defining event
Landing-flare/touchdown: Landing area overshoot
Weather
Visual (VMC) · Day
Status
Completed · report July 18, 2013
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20130313002719A
Case key
86409

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 maintain the proper airspeed during a tailwind approach, his improper decision to continue a fast approach with a tailwind rather than go around, and his improper use of the wheel brakes during the landing roll.

Findings · 5

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: aircraft controlPersonnel issues › Task performance · PilotPiper PA-25-235: 18 casesAll aircraft: 9,295 casesProbable cause
Wind: tailwindEnvironmental issues › Conditions/weather/phenomena · Not specifiedPiper PA-25-235: 2 casesAll aircraft: 594 cases
Performance/control parameters: airspeedAircraft › Aircraft oper/perf/capability · Incorrect use/operationPiper PA-25-235: 4 casesAll aircraft: 1,681 casesProbable cause
Landing gear system: brakeAircraft › Aircraft systems · Incorrect use/operationPiper PA-25-235: 3 casesAll aircraft: 297 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 of the tailwheel-equipped airplane reported that he was conducting glider-tow operations, which were departing into the wind; the gliders were then landing in the opposite direction with a tailwind. After an uneventful glider tow and release, the airplane was returning to the airport to conduct a second glider tow. While turning to the base leg of the airport traffic pattern, a tailwind gust caused the airplane to lose about 10 mph of airspeed. To compensate, the pilot increased engine power and increased the airspeed from 60 mph to 80 mph, where it remained until touchdown. The pilot further stated that the airplane touched down "too fast" about 600 feet down the runway. He was concerned that the airplane would collide with gliders at the end of the runway, so he applied heavy braking, which caused the airplane to nose over and come to rest inverted on the runway. Examination of the airplane revealed substantial damage to the left wing; no preimpact mechanical malfunctions that would have precluded normal airplane operation were observed, nor did the pilot report any. The pilot added that he should have performed a go-around when the tailwind gust upset the approach on base leg. Recorded weather near the accident site indicated a tailwind of 8 knots, gusting to 15 knots.

Factual narrative

The pilot of the tailwheel airplane reported that the glider-tow operations were departing into the wind on a 3,000-foot long turf runway, and landing in the opposite direction, with a tailwind. After an uneventful glider release, the airplane was returning to the airport for a second glider tow. While turning on to a base leg of the airport traffic pattern, a tailwind gust caused the airplane to lose about 10 mph of airspeed. To compensate, the pilot increased engine power, which increased the airspeed from 60 mph to 80 mph, where it remained until touchdown. The pilot further stated that the airplane touched down "too fast," about 600 feet down the runway. He was concerned that the airplane would collide with gliders at the end of the runway, so he applied heavy braking, which caused the airplane to flip over and come to rest inverted on the runway. Examination of the airplane by a Federal Aviation Administration inspector revealed substantial damage to the left wing. The inspector did not observe any preimpact mechanical malfunctions with the airplane, nor did the pilot report any. The pilot added that he should have performed a go-around when the tailwind gust upset the approach on base leg. Recorded weather near the accident site indicated a tailwind of 8 knots, gusting to 15 knots.

Aircraft

Registration
N7329Z
Reported as
Piper PA-25-235
Category
Airplane
Serial number
25-3279
Engine
Lycoming O-540, 250 horsepower, reciprocating
Damage
Substantial damage
Flight
Glider tow · Part 91
Operator
Tampa Bay Soaring Society Inc
Registered owner
Tampa Bay Soaring Society Inc
Airworthiness certificate
Standard, Normal
Departed
6FL0 · Groveland, FL
Destination
6FL0 · Groveland, FL
Airport
6FL0 · Seminole Lake Gliderport, runway 18, 3,000 × 200 ft, grass/turf

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
70
Injuries
Minor
Certificates
Airline transport, Flight instructor, Commercial, Flight engineer
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
January 10, 2012
Seat
Single
Flight hours
9,000 total · 500 in this make and model · 6,000 as pilot in command · 13 in the last 90 days · 2 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
340° at 8 knots, gusting 15
Visibility
10 statute miles
Lowest ceiling
None
Temperature
70 °F, dew point 28 °F
Altimeter
30.18 inHg
Observed at
ZPH, 15 nm away

Docket · 4

The files NTSB released with the investigation on May 3, 2013, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.1 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.

Other investigations on N7329Z · 1

Matched to the same aircraft by N-number and date.