NYC99LA117

NTSB accident investigation · Piper PA-11 · Leesburg, VA · May 21, 1999

Accident · No injuriesLimited investigationFinal report
Date
May 21, 1999, 14:12 local (18:12 UTC)
Place
Leesburg, VA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N78659Piper PA-11
Weather
Visual (VMC) · Day
Status
Completed · report August 3, 2000
Report
Approved by Office Director
FAA report
19990521028529A
Case key
46437

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-in-command's (CFI) failure to maintain control of the airplane.

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.

Loss of control - on ground/waterLanding - roll
Aircraft control - not maintainedPilot in command(cfi)Cause
On ground/water collision with objectLanding - roll

Analysis

The certified flight instructor was introducing the commercial pilot to tailwheel operations. The commercial pilot had accomplished approximately six landings in the airplane. During the next landing, the pilots experienced a crosswind, followed by a tailwind. The airplane stalled, bounced, and traveled off the left side of the runway. The instructor stated that he took control of the airplane, prevented a ground loop, but was unable to keep the airplane on the runway. The airplane struck a runway sign, causing substantial damage to the empennage.

Factual narrative

On May 21, 1999, about 1412 Eastern Daylight Time, a Piper PA-11, N78659, was substantially damaged during a landing at Leesburg Municipal/Godfrey Field Airport (JYO), Leesburg, Virginia. The certificated flight instructor and commercial pilot were not injured. Visual meteorological condition prevailed for the flight that originated from York Airport, York, Pennsylvania. No flight plan was filed for the instructional flight conducted under 14 CFR Part 91.

The instructor was introducing the commercial pilot to tailwheel operations, and the commercial pilot had accomplished approximately six landings in the airplane. The instructor stated that during the next landing, they experienced a sudden crosswind, followed by a tailwind. The airplane stalled, bounced, and traveled off the left side of the runway. The instructor further stated that he took control of the airplane, prevented a ground loop, but was unable to keep the airplane on the runway. The airplane struck a runway sign, causing substantial damage to the empennage.

The commercial pilot stated "...upon touchdown, the plane veered sharply to the left, going onto the grass and hitting a sign with the horizontal stabilizer. There was a slight crosswind on final, touchdown was normal, then the wind appeared to shift to a tailwind."

Examination of the wreckage by a Federal Aviation Administration Inspector did not reveal any pre-impact mechanical malfunctions, nor did the pilots report any.

The approach was flown to Runway 35, a 5,500 foot long, 100 foot wide, asphalt runway. The reported winds at JYO, at 1400, were from 270 degrees at 5 knots.

Aircraft

Registration
N78659
Reported as
Piper PA-11
Category
Airplane
Serial number
11-1420
Airframe hours
5,227
Engine
Continental C90-12F, 95 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
David Pearce
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 25, 1998 · 30 hours before
Departed
THV · York, PA
Destination
JYO
Airport
JYO · Leesburg Municipal, runway 35, 5,500 × 100 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
65
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
16,350 total · 2,500 in this make and model · 15,106 as pilot in command · 40 in the last 90 days · 30 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 48 °F
Altimeter
30.00 inHg
Observed at
JYO

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 N78659 · 2

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