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Atlas / NTSB / WPR25LA059

NTSB CAROL · Event

Event WPR25LA059

2024-12-08 El Cajon, California, United States Airport · SEE None 1 aircraft Status: Completed

Registry · N9199R

FAA Aircraft Registry record.

Make / Model

BOEING A75N1(PT17)

Year of manufacture

1941 · 83 years old at event

Engine

LYCOMING R680-17 (225 hp)

Seats / Engines

2 seats · 1 engine

Last airworthiness date

19610425

ADS-B equipped

Yes — Mode-S ACBBBD

Registrant of record

BROTHERS DAVID A

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot’s inability to maintain directional control during landing with a flat tire.

Factual narrative

The pilot of the tailwheel equipped airplane reported that during a formation takeoff, the airplane began to veer left, and he lifted off earlier than the lead airplane to maintain directional control. After an uneventful flight, during landing, the airplane began to track violently to the left, despite the pilot’s control inputs. The airplane exited the left side of the runway, and as it was almost stopped, veered to the right onto the runway surface, and came to rest upright. During the accident sequence, the lower left wing struck the ground, which resulted in substantial damage to the left aileron. Upon exiting the airplane, the pilot observed the left main tire was deflated and partially separated from the wheel assembly. Inspection of the runway environment revealed that there was a thick skid mark from where the airplane’s left tire touched down at the beginning of the runway. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).

  • Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained
  • Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot
  • Aircraft-Aircraft systems-Landing gear system-Tube-Failure

Verbatim from NTSB's published report. Source file NTSB_2024_WPR25LA059.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.