NTSB CAROL · Event
Event ATL89FA188
Registry · N11TP
FAA Aircraft Registry record.
Make / Model
PIZZUTI THOMAS M SH2
Year of manufacture
1992
Engine
LYCOMING O&VO-360 SER (180 hp)
Seats / Engines
2 seats · 1 engine
Last airworthiness date
19920615
ADS-B equipped
Yes — Mode-S A02B91
Registrant of record
TIENKEN HENRY N
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
THE FATIGUE FAILURE OF THE SUPERCHARGER INTERMEDIATE DRIVE GEAR SHAFT (GEAR TOOTH), WHICH RESULTED IN A PARTIAL LOSS OF POWER, AND THE PILOT'S INITIATION OF LIFT-OFF BEFORE REACHING VMC AIRSPEED. FACTORS RELATED TO THE ACCIDENT WERE: THE WORN INTERMEDIATE DRIVE GEAR SHAFT, THE PILOT'S OPERATION OF THE AIRCRAFT ABOVE ITS MAXIMUM CERTIFIED GROSS WEIGHT LIMIT, AND THE HIGH DENSITY ALTITUDE.
Factual narrative
DURING TAKEOFF, THE ACFT ROLLED ABRUPTLY TO THE RIGHT AFTER LIFT-OFF. SUBSEQUENTLY, THE RIGHT WINGTIP STRUCK THE SURFACE, THEN THE ACFT CARTWHEELED & CRASHED. THE FUSELAGE WAS DESTROYED BY A POST-CRASH FIRE. AN EXAM OF THE ENGS REVEALED THAT THE RIGHT ENG SUPERCHARGER INTERMEDIATE DRIVE GEAR SHAFT HAD BECOME WORN & ONE OF ITS GEAR TEETH HAD FAILED FROM FATIGUE. THERE WAS EVIDENCE THAT AN OUT-OF-MESH CONDITION OCCURRED, WHICH RESULTED IN A PARTIAL LOSS OF ENG POWER DURING TAKEOFF. ALSO, THE ACFT WAS ESTIMATED TO BE 679 LBS OVER ITS MAX CERTIFIED GROSS WEIGHT. DENSITY ALT WAS CALCULATED TO BE ABOUT 2000 FT. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1989_ATL89FA188.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. 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 2019 · Technical Memorandum (TM)
Analysis of an emergency deceleration and descent of the XB-70-1 airplane due to engine damage resulting from structural failure
Analyzing emergency deceleration and descent of XB-70-1 airplane due to engine damage resulting from structural failure for supersonic transport data
- Embry-Riddle Scholarly Commons 2019 · Journal article (IJAAA)
In-flight Wingtip Folding: Inspiration from the XB-70 Valkyrie
Wingip folding can be used to extend aircraft wingspan, allowing designers to take advantage of reduced induced drag whilst respecting ground operational limitations.
- NASA NTRS 2026 · Technical Memorandum (TM)
Impacts of Reduced Pressure Atmospheres on Environmental Control and Life Support Systems (ECLSS) Architectures
The study found that while nine subsystems are viable without modification at 10.2 psia, only three remain acceptable at 8.2 psia.
- arXiv 2026 · arXiv preprint
Neurosim: A Fast Simulator for Neuromorphic Robot Perception
Neurosim is a fast, real-time, high-performance library for simulating sensors such as dynamic vision sensors, RGB cameras, depth sensors, and inertial sensors.
- NASA NTRS 2025 · Conference Paper
Initial Study of Tailored Trajectory Management for Multi-Vehicle Uncrewed Regional Air Cargo Operations
The primary contribution of this paper is an evaluation of the potential value of a tailored trajectory management (TTM) capability for uncrewed aircraft (UA) operators that is proactive in detecting …
- Embry-Riddle Scholarly Commons 2025 · Journal article (IJAAA)
Generalizing Classification of Pilot Workload: Transfer Learning versus a JEPA-Inspired Transformer Architecture
Within the context of learning, there poses difficulty when objectively measuring human performance. In this work, we investigate the evaluation of human performance via its relation to the individual…
Browse the full corpus — academia portal ↗