Alon A2 N6557Q

Summary

On 20 July 2025 at about 19:15 local time, a Alon A2 registered N6557Q was involved in an accident near Pipestone, Minnesota, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

20 July 2025 at 19:15

Classification

Accident

Location

Pipestone, Minnesota, United States

Nearest airport

Pipestone Muni (PQN)

Coordinates

43.9847, -96.3035

Aircraft

Alon A2

Registration

N6557Q

Category

Airplane

Year built

1965

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Rapid City → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

CEN25LA264

Nobody was injured.

The failure of the left brake to release due to corrosion and pitting of the caliper piston and bore, which resulted in a runway excursion.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

The pilot reported that when the wheels touched down during landing the airplane pulled hard to the left and departed the runway despite his control inputs to correct the airplane’s direction of travel. The airplane nose landing gear collapsed during the runway excursion and the airplane came to rest inverted in the adjacent cornfield. The wings and empennage sustained substantial damage. After the accident a bystander attempted to turn the left wheel of the airplane and told the pilot he could barely move it. Later when the pilot tried to move the left wheel it turned freely. A post-accident examination of the airplane showed that the brake caliper pistons and piston bores for both main landing gear were corroded and pitted. It is likely the left brake caliper failed to release after being used during the landing due to the corroded brake components.

Quoted verbatim from the NTSB record.