ATL90LA094

NTSB accident investigation · Grumman AA-5B · Stone Mountain, GA · April 9, 1990

Accident · No injuriesLimited investigationFinal report
Date
April 9, 1990, 13:20 local (17:20 UTC)
Place
Stone Mountain, GA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N74651Grumman AA-5B
Weather
Visual (VMC) · Day
Status
Completed · report November 9, 1992
Report
Approved by Office Director
FAA report
19900409007949A
Case key
8228

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 misjudged approach which resulted in a long, fast landing and subsequent overrun of the departure threshold. Factors in the accident were the pilot's failure to lower the flaps and establish a proper glidepath.

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 engine power(partial) - nonmechanicalCruise
Reason for occurrence undeterminedCause
OverrunLanding - roll
Planned approach - misjudgedPilot in commandCause
Lowering of flaps - not performedPilot in commandFactor
Proper glidepath - not selectedPilot in commandFactor

Analysis

The pilot reported a rough running engine & his intention to land at the airport. He stated he planned to land on rwy 35 but was high when over the rwy. A go-around was executed. He said the engine ran roughly through-out the go-around so he kept his altitude. A long fast landing resulted followed by rwy overrun & nosing over inverted. The airport manager said the engine sputtered when the go-around was begun but ran without hesitation afterwards. The flaps were retracted and there were no flat spots on the tires. Nothing was found to indicate that the engine could not operate. The spark plugs indicated normal operation.

Aircraft

Registration
N74651
Reported as
Grumman AA-5B
Category
Airplane
Serial number
AA5B-0324
Airframe hours
2,966
Engine
Lycoming O-360-A4K, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Operator
Robert E. Bridges
Registered owner
Tiger Services, Inc.
Last inspection
Annual · July 18, 1989 · 144 hours before
Departed
PDK · Chamblee, GA
Destination
BUY · Burlington, NC
Flight plan
IFR
Airport
00A · Stone Mountain-Britt Mem., runway 17, 2,812 × 45 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
36
Certificate
Private
Airplane ratings
Single-engine sea
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Flight hours
387 total · 2 in this make and model · 272 as pilot in command · 20 in the last 90 days · 15 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
120° at 11 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point 30 °F
Altimeter
30.00 inHg
Observed at
PDK, 5 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.