NYC97LA157

NTSB accident investigation · Champion 7ECA · Easton, MD · August 3, 1997

Accident · No injuriesLimited investigationFinal report
Date
August 3, 1997, 08:15 local (12:15 UTC)
Place
Easton, MD
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N4178YChampion 7ECA
Weather
Visual (VMC) · Day
Status
Completed · report June 26, 1998
Report
Approved by Office Director
FAA report
19970803020479A
Case key
39413

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

an inadequate weld repair, which resulted in insufficient structural strength of the left main gear.

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.

Main gear collapsedLanding - roll
Landing gear,main gear - fracturedCause
Maintenance,major repair - inadequateCause

Analysis

The pilot reported that he made a 3-point landing with no bounce, and immediately thereafter, the airplane swerved left. He corrected, and the airplane started to swerve right, in a tightening circle. The left wing scrapped the runway, and the left main landing gear collapsed under the fuselage. An FAA inspector reported that the landing gear failed at a weld. Corrosion was visible on a portion of the face of the fracture surface. There was no record of the weld in the airplane logbooks.

Factual narrative

On August 3, 1997, about 0815 eastern daylight time, a Champion 7ECA, N4178Y, was substantially damaged while landing at the Easton Airport, Easton, Maryland. The certificated commercial pilot was not injured. Visual meteorological conditions prevailed for the personal flight which originated at Anapolis, Maryland, at 1102. No flight plan had been filed for the flight which was conducted under 14 CFR Part 91.

In the NTSB Pilot/Operator Aircraft Accident Report, the pilot stated:

"...I monitored the AWOS, which reported the winds calm...My intention was to do a full stop landing [runway 04]...I had the stick full back when I landed, and it felt like a proper 3-point landing, with no bounce."

"However, almost immediately aircraft began to swerve to the left. I corrected with right rudder, and the aircraft took a swerve to the right, which became a tightening swerve to the right that I could not control. This whole loss of control happened very quickly. The aircraft exited the runway to the right, completing an almost 180 degree turn. I could feel the landing gear collapsing and saw the left wing scraping the ground. I pulled the mixture and we came to a quick stop in the grass immediately off the runway. I then turned off the master and mags and exited the aircraft. "

"An initial look see at the damage revealed wrinkled fabric on the left wing tip, the left main gear doubled up under the fuselage, and some damage to the under belly fabric...."

The airplane was examined by an airworthiness inspector from the Federal Aviation Administration (FAA), who stated:

"...The left landing gear attach tube, part number 7-1290-12 was broken at the weld where it attaches to the fuselage tubing. [the structural tubing on this aircraft is square] The tubing contained a weld repair...There was no penetration of the tubing. The break occurred right at the weld seam, not at the adjacent tubing wall...There was no shear lips on approximately half of the broken weld. This same section had corrosion on the fracture face...I reviewed the complete maintenance records for the aircraft and there was no entry for the weld repair. The operator of the aircraft, Fort Meade Army Flying Activity said they had no knowledge of the repair. ..."

A check of FAA records revealed that the airplane was registered to the US Army on April 29, 1995.

Aircraft

Registration
N4178Y
Reported as
Champion 7ECA
Category
Airplane
Serial number
1187-77
Airframe hours
5,125
Engine
Lycoming O-235-C1, 115 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Fort Meade Flying Activity
Registered owner
Department Of The Army
Airworthiness certificate
Standard, Normal
Departed
ANP · Anapolis, MD
Destination
ESN
Airport
ESN · Easton, runway 4, 5,511 × 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
54
Certificates
Private, Commercial
Airplane ratings
Single-engine sea, Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
1,649 total · 28 in this make and model · 1,549 as pilot in command · 33 in the last 90 days · 19 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
260° at 6 knots
Visibility
4 statute miles
Lowest ceiling
18,000 ft broken
Temperature
86 °F, dew point 68 °F
Altimeter
29.00 inHg
Observed at
SBY, 38 nm away

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 N4178Y · 1

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