NTSB CAROL · Event
Event OPS11IA173
Aircraft involved
Probable cause & findings
The local controller's distraction with a helicopter south of the field.
Factual narrative
The local control center (LCC) controller in the Cincinnati/Northern Kentucky International Airport (CVG) air traffic control tower (ATCT) cleared Trans State Airlines (LOF) Flight 8069, call-sign Water-Ski, an E-145 to land on runway 18C. Delta Air Lines (DAL) Flight 2809, a B738, had been instructed to line up and wait (LUAW) on runway 18C. The LCC withheld the takeoff clearance for the B738 until a helicopter had crossed the departure path at low level, four miles south of the airport. The LCC momentarily lost sight of the helicopter and could not locate the helicopter on the tower radar presentation. After re-acquiring the helicopter and determining that no conflict existed for the departing B738, the LCC issued the B738 a takeoff clearance. Contrary to FAA orders, the takeoff clearance did not include traffic information that another aircraft, the E-145, was on approach to the same runway. On short final for runway 18C, the E-145 queried the local controller if they should go around, as they were inside of 1/2 nautical mile final to runway 18C and the B738 was in position on the approach end of runway 18C. At approximately the same time, the tower Airport Movement Area Safety System (AMASS) alerted to the developing conflict between the B738 and the E-145. Prior to the E-145 crossing the landing threshold, the LCC instructed the E-145 to go around; fly runway heading and climb and maintain 4,000 feet. The E-145 passed to the right side of the runway 18C landing threshold and did not overfly the B737. The FAA identified this event as a significant operational error; "SIGNIFICANT OPERATIONAL ERROR/1125E/OPERATIONAL ERROR REPORTED WHEN TRANS WORLD EXPRESS 8069, EMBRAER E145, WAS CLEARED TO LAND RWY 18C WITH DELTA 2809, B738, CLEARED TO DEPART SAME RUNWAY. TRANS WORLD EXPRESS 8069 WAS THEN ISSUED GO AROUND AND OVERFLEW DELTA 2809 DURING TAKEOFF ROLL. CLOSEST PROXIMITY 300 FEET VERTICAL." An on-site investigation and analysis of ATC data by NTSB and FAA investigators revealed that an operational error did not occur. The E-145 offset its flight path during the go-around and passed to the right side of the landing threshold and the departing B738. While it was determined that the local controllers performance was not in compliance with local operating procedures or FAA Order 7110.65 and the missed approach instructions could have been more definitive, a loss of separation did not occur and assured separation was established prior to the E-145 crossing the landing threshold. A Boeing B737 was instructed to line up and wait on the runway while a helicopter crossed the proposed departure path at a low level four miles south of the airport. After the helicopter conflict was resolved, the B737 was issued takeoff clearance, but contrary to Federal Aviation Administration requirements, the B737 was not advised of the E-145 on approach to the same runway. Less than ½ nautical mile on short final, the E-145 queried the tower local controller if they should go around. About the same time, the Airport Movement Area Safety System alerted. Prior to the E-145 crossing the landing threshold, and as the B737 began its takeoff roll, the tower local controller instructed the E-145 to go around. The E-145 did not overfly the B737 and there was no loss of separation. 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-Action/decision-Action-Forgotten action/omission-ATC personnel - C
- C Personnel issues-Action/decision-Action-Incorrect action performance-ATC personnel - C
Verbatim from NTSB's published report. Source file
NTSB_2010_OPS11IA173.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
Beyond the agency record
Search this event elsewhere.
Pre-filled searches into the sources where news + community discussion of aviation events lives. External sources are reported, not agency. Treat them as signal that something happened, not as fact about what happened.
Entity-clustered aviation events in the press — last 24 hr + 30-day archive.
Official agency record + docket.
Investigative docket: factual reports, photos, transcripts.
Long-running aviation incident database (Flight Safety Foundation).
Community NTSB synthesis blog — often has photos and witness reports.
Gold-standard aviation incident blog.
Aviation industry news search.
GA pilot forum — informed but rumor-prone.
GA pilot subreddit search.
Tail-number page — flight history (free tier limited).
AOPA Air Safety Institute search.
Mainstream press coverage. Recent events only.
Privacy-preserving news search.
External links open in a new tab. We don't ingest their content; we deep-link search queries.
Related research
What the literature says.
Academic papers and agency reports matching this event's aircraft type or causal vocabulary (go-around). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- NASA NTRS 2025 · Conference Paper
A Training Study to Improve Monitoring During A Go-Around
As part of an FAA program to improve go-around (GA) safety, we were asked to determine if we could improve the performance of the Pilot Monitoring (PM) during a GA maneuver.
- Flight Safety Foundation 2024 · FSF / AeroSafety World
Go-Around Safety Forum Findings
Foundation Go-Around Safety Forum technical findings — examines why pilots fail to execute go-arounds when criteria are met (stabilized approach gate not met, energy state out of envelope, traffic con…
- Semantic Scholar 2022 · Article (Journal of Safety Research)
Go-around accidents and general aviation safety.
INTRODUCTION Changes in General Aviation (GA) accident rates, specifically in the go-around phase, are examined by comparing the number of accidents, the proportion of fatal accidents, and the proport…
- Semantic Scholar 2021 · Article (Aerospace)
Classification and Analysis of Go-Arounds in Commercial Aviation Using ADS-B Data
Go-arounds are a necessary aspect of commercial aviation and are conducted after a landing attempt has been aborted. It is necessary to conduct go-arounds in the safest possible manner, as go-arounds …
- NASA NTRS 2021 · Accepted Manuscript (Version with final changes)
Go-Around Criteria Refinement for Transport Category Aircraft
Presently, airline pilots are trained to go around if, when lower than 500 ft above the ground, they are outside of a handful of parameters such as airspeed, position, and rate of descent.
- NASA NTRS 2019 · Conference Paper
Validation of Proposed Go-Around Criteria Under Various Environmental Conditions
This paper evaluates the effects of environmental conditions on touchdown performance under varying approach states and validates proposed go-around criteria developed using data from a previously con…
Browse the full corpus — academia portal ↗