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Atlas / NTSB / GAA19CA558

NTSB CAROL · Event

Event GAA19CA558

2019-08-09 Chicago, Illinois, United States Airport · MDW None 1 aircraft Status: Completed

Registry · N9837L

FAA Aircraft Registry record.

Make / Model

CESSNA 172P

Year of manufacture

1986 · 33 years old at event

Engine

LYCOMING 0-320 SERIES (180 hp)

Seats / Engines

4 seats · 1 engine

Last airworthiness date

19860522

ADS-B equipped

Yes — Mode-S ADB9A1

Registrant of record

IAL CORP

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot's improper landing flare, which resulted in a hard, porpoised landing.

Factual narrative

The pilot reported that during the landing flare, he was startled by the early impact and bounce. The airplane touched down hard and bounced about three times in a "porpoise pattern." He increased power to abort the landing, and he retracted the flaps but, "It was too late to recover." He reduced engine power and the airplane rolled to a stop on the runway. The airplane sustained substantial damage to the lower fuselage bulkhead. The airport's METAR reported that about the time of the accident, the wind was from 210° at 5 knots. The airplane landed on runway 04L. The airport elevation was 618ft, the temperature was 82°F, the barometric setting was 29.94, and the estimated density altitude was 2,300ft. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The pilot reported that, during the landing flare, he was startled by the airplane impacting the runway early and then bouncing. Subsequently, the airplane touched down hard and porpoised. He increased power to abort the landing and retracted the flaps, but the airplane was unable to take off. He reduced engine power, and the airplane rolled to a stop on the runway. The airplane sustained substantial damage to the lower fuselage bulkhead. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. 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).

  • C Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
  • C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Landing flare-Not attained/maintained - C

Verbatim from NTSB's published report. Source file NTSB_2019_GAA19CA558.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

What the literature says.

Academic papers and agency reports matching this event's aircraft type. Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.

Browse the full corpus — academia portal ↗