20250929018349A

Accident · Substantial damage

FAA accident report · Aeronca 11AC · Longmont, CO · September 29, 2025

Date
September 29, 2025 · 12:10 local
Place
Longmont, CO
Airport
Longmont Vance Brand
Phase of flight
Cruise/Level Flight
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N86326
NTSB investigation
NTSBCEN25LA403
Reported as
Aeronca 11AC
Reported engine
Continental A&C65 series
People aboard
2
Fatal injuries
0
Other injuries
0
Pilot’s certificates
Commercial pilot, private pilot
Pilot’s flight hours
1,120 total2 in this make and model40 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

Pilot in command had 8.5 gallons on board for a local flight with pattern practice at greeley. Stated fuel burn to be 4 gallons an hour based on tach time. After approximately 2 hours of elapsed flight time engine lost power and an off field landing was made with damage to the aircraft but no injuries. No water found in the residual remaining fuel estimated to be less then a quart bases on visual inspection of the fuel tank.

As the FAA filed it

PILOT IN COMMAND HAD 8.5 GALLONS ON BOARD FOR A LOCAL FLIGHT WITH PATTERN PRACTICE AT GREELEY. STATED FUEL BURN TO BE 4 GALLONS AN HOUR BASED ON TACH TIME. AFTER APPROXIMATELY 2 HOURS OF ELAPSED FLIGHT TIME ENGINE LOST POWER AND AN OFF FIELD LANDING WAS MADE WITH DAMAGE TO THE AIRCRAFT BUT NO INJURIES. NO WATER FOUND IN THE RESIDUAL REMAINING FUEL ESTIMATED TO BE LESS THEN A QUART BASES ON VISUAL INSPECTION OF THE FUEL TANK.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.