N2072Lockheed Martin 122024-06-17 NTSB Accident Report

Substantial
Serious

Lockheed Martin 12S/N: 1208

Summary

On June 17, 2024, a Lockheed 12 (N2072) was involved in an accident near Jackson, GA. The accident resulted in 3 serious injuries. The aircraft sustained substantial damage.

On June 17, 2024, at 1949 eastern daylight time, a Lockheed 12A airplane, N2072, was substantially damaged when it was involved in an accident near Jackson, Georgia. The flight instructor, commercial pilot, and one passenger were seriously injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The airplane was landing on runway 36 at Seven Lakes Airport (62GA), Jackson, Georgia, when the accident occurred. A video of the landing recorded by a witness showed that the airplane veered off the left side of the runway during the landing roll. The airplane subsequently collided with trees.

This accident is documented in NTSB report ERA24FA266. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N2072.

Accident Details

Date
Monday, June 17, 2024
NTSB Number
ERA24FA266
Location
Jackson, GA
Event ID
20240618194488
Coordinates
33.324896, -83.916533
Aircraft Damage
Substantial
Highest Injury
Serious
Fatalities
0
Serious Injuries
3
Minor Injuries
0
Uninjured
0
Total Aboard
3

Probable Cause and Findings

Maintenance personnel’s failure to properly secure the right brake line, which resulted in a loss of right brake effectiveness during the landing roll and a subsequent runway excursion.

Aircraft Information

Registration
Make
Lockheed Martin
Serial Number
1208
Engine Type
Reciprocating
Year Built
1936
Model / ICAO
12L12
Aircraft Type
Fixed Wing Multi Engine
No. of Engines
2
Seats
8
FAA Model
12A

Registered Owner (Current)

Name
N12EX INC
Address
126A SINGLEY RD
City
JACKSON
State / Zip Code
GA 30233-5025
Country
United States

Analysis

On June 17, 2024, at 1949 eastern daylight time, a Lockheed 12A airplane, N2072, was substantially damaged when it was involved in an accident near Jackson, Georgia. The commercial pilot and two passengers were seriously injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight.

According to the pilot, maintenance was performed 10 days before the accident, on June 7, 2024, to replace the right main landing gear strut seals. The maintenance required removal of the right landing gear strut assembly, and the associated brake line was disconnected and capped during the procedure. The pilot reported that, following reinstallation of the strut assembly, the brake lines were reconnected and tightened.

On June 10, 2024, the right landing gear strut was serviced with nitrogen, and the brake system was checked with no anomalies or hydraulic leaks noted.

The pilot reported that, on the day of the accident, he conducted a preflight inspection and observed no discrepancies or hydraulic leaks. He completed an engine run-up and observed no anomalies. The pilot stated that he relied on differential braking for directional control during ground operations because the airplane was not equipped with a steerable tailwheel. Although the tailwheel was equipped with a locking mechanism, the pilot reported that he typically did not engage the lock in order to maintain maneuverability on narrow runways.

The pilot reported that the local flight was uneventful. During the landing roll, after the tailwheel contacted the runway, he applied the brakes and noted that the right brake pedal was ineffective. The airplane subsequently veered left, and the pilot elected to shut down the engines as the airplane departed the narrow runway and impacted a tree. The pilot reported that the right engine briefly continued operating after impact until it was shut down. A witness video of the landing roll confirmed that the airplane began to veer left shortly after the tailwheel contacted the runway.

A postaccident examination of the airplane revealed a loose right brake line fitting near a section of the landing gear assembly that flexed during gear movement. Hydraulic fluid leakage was observed at the brake line fitting, and the brake line B-nut fitting was found finger-tight. Hydraulic fluid residue was also observed on and around the B-nut fitting mount.

A digital video camera was recovered from the wreckage and its contents were successfully downloaded. The video files included portions of the accident flight, but not the landing or accident sequence.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# ERA24FA266