ERA22LA266

NTSB accident investigation · Grumman American Avn. AA-5 · Sarasota, FL · June 13, 2022

Accident · Minor injuriesClass 4 · LimitedFinal report
Date
June 13, 2022, 17:44 local (21:44 UTC)
Place
Sarasota, FL · Rural area adjacent to stream
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N9577LGrumman American Avn. AA-5
Defining event
Approach-VFR pattern final: Fuel contamination
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20220613010389A
Case key
105253

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 inadequate preflight inspection, during which he failed to detect water contamination in the fuel system, which resulted in a loss of engine power on approach.

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.

Inspection: preflight inspectionPersonnel issues › Task performance · PilotGrumman American Avn. AA-5: 2 casesAll aircraft: 551 casesProbable cause
Fluids: fuelAircraft › Fluids/misc hardware · Fluid conditionGrumman American Avn. AA-5: 3 casesAll aircraft: 1,695 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 stated that he departed visual flight rules and was returning to his home airport after work. On about a 3-mile final approach to the runway the pilot switched from the right to the left fuel tank and when he tried to add engine power found there was no response. He then switched back to the right tank and found the engine was still producing no power. The pilot executed a forced landing in a field, which resulted in substantial damage to the wings, tail, and fuselage. An inspection of the wing fuel tanks found the left tank to be empty and dry, and a sample from the right tank revealed all water with no visible fuel. When the carburetor was drained, it had about 2 tablespoons of liquid; half fuel and half water. The pilot stated that he did not check for fuel contamination before departing. He also reported that he fueled the airplane with fuel cans that were uncapped and exposed to rain over the weekend. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N9577L
Reported as
Grumman American Avn. AA-5
Category
Airplane
Serial number
AA5-0577
Built
1974
Airframe hours
6,823
Engine
Lycoming O-320-E2G, 160 hp, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal; Standard, Utility
Last inspection
Annual · October 2, 2020
Departed
FPR · Fort Pierce, FL
Destination
Same as departure
Airport
22FA · Hidden River, runway 27, 2,524 × 49 ft, asphalt
Equipment
Auto-pilot, Stall warning system, Handheld GPS, ADS-B

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
64
Injuries
None
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
April 14, 2021
Seat
Left
Restraint
3-point
Flight hours
13,000 total · 3,000 in this make and model · 12,000 as pilot in command · 104 in the last 90 days · 20 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 7 knots
Visibility
9 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point 73 °F
Altimeter
30.07 inHg
Observed at
KVNC, 17 nm away
METAR
METAR KVNC 132155Z AUTO 27007KT 9SM CLR 31/23 A3007 RMK AO2

Docket · 4

The files NTSB released with the investigation on October 17, 2022, on NTSB’s docket system: statements, records, photos and specialists’ reports. 15.3 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.